JPH072402B2 - Method for producing integrated molding of methacrylic resin and silicone rubber - Google Patents
Method for producing integrated molding of methacrylic resin and silicone rubberInfo
- Publication number
- JPH072402B2 JPH072402B2 JP60208392A JP20839285A JPH072402B2 JP H072402 B2 JPH072402 B2 JP H072402B2 JP 60208392 A JP60208392 A JP 60208392A JP 20839285 A JP20839285 A JP 20839285A JP H072402 B2 JPH072402 B2 JP H072402B2
- Authority
- JP
- Japan
- Prior art keywords
- silicone rubber
- methacrylic resin
- mixture
- layer
- curable silicone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920002379 silicone rubber Polymers 0.000 title claims description 90
- 239000004945 silicone rubber Substances 0.000 title claims description 90
- 239000000113 methacrylic resin Substances 0.000 title claims description 44
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 238000000465 moulding Methods 0.000 title description 12
- 239000000203 mixture Substances 0.000 claims description 86
- 239000000178 monomer Substances 0.000 claims description 15
- 239000002685 polymerization catalyst Substances 0.000 claims description 13
- 238000010526 radical polymerization reaction Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 20
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 18
- 239000004926 polymethyl methacrylate Substances 0.000 description 18
- 239000011347 resin Substances 0.000 description 16
- 229920005989 resin Polymers 0.000 description 16
- 241000209094 Oryza Species 0.000 description 15
- 235000007164 Oryza sativa Nutrition 0.000 description 15
- 239000003054 catalyst Substances 0.000 description 15
- 235000009566 rice Nutrition 0.000 description 15
- 239000010440 gypsum Substances 0.000 description 14
- 229910052602 gypsum Inorganic materials 0.000 description 14
- 229910052697 platinum Inorganic materials 0.000 description 9
- 238000007259 addition reaction Methods 0.000 description 8
- 238000002156 mixing Methods 0.000 description 8
- 150000001451 organic peroxides Chemical class 0.000 description 8
- 239000000047 product Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 6
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000007348 radical reaction Methods 0.000 description 5
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000009974 thixotropic effect Effects 0.000 description 4
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 3
- -1 alkyl methacrylate Chemical compound 0.000 description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000004205 dimethyl polysiloxane Substances 0.000 description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 3
- 229910021485 fumed silica Inorganic materials 0.000 description 3
- 239000006082 mold release agent Substances 0.000 description 3
- 239000011505 plaster Substances 0.000 description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 description 2
- 239000004342 Benzoyl peroxide Substances 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 125000005250 alkyl acrylate group Chemical group 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical group C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 2
- 229920005645 diorganopolysiloxane polymer Polymers 0.000 description 2
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 description 2
- 229910052909 inorganic silicate Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000012763 reinforcing filler Substances 0.000 description 2
- LGJCFVYMIJLQJO-UHFFFAOYSA-N 1-dodecylperoxydodecane Chemical compound CCCCCCCCCCCCOOCCCCCCCCCCCC LGJCFVYMIJLQJO-UHFFFAOYSA-N 0.000 description 1
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2,2'-azo-bis-isobutyronitrile Substances N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 1
- VMAWODUEPLAHOE-UHFFFAOYSA-N 2,4,6,8-tetrakis(ethenyl)-2,4,6,8-tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane Chemical compound C=C[Si]1(C)O[Si](C)(C=C)O[Si](C)(C=C)O[Si](C)(C=C)O1 VMAWODUEPLAHOE-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- AOIDYWIUVADOPM-UHFFFAOYSA-N 2-hydroxyethyl 2,3-dimethylbut-2-enoate Chemical compound CC(C)=C(C)C(=O)OCCO AOIDYWIUVADOPM-UHFFFAOYSA-N 0.000 description 1
- 241000519695 Ilex integra Species 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000002318 adhesion promoter Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- FSIJKGMIQTVTNP-UHFFFAOYSA-N bis(ethenyl)-methyl-trimethylsilyloxysilane Chemical compound C[Si](C)(C)O[Si](C)(C=C)C=C FSIJKGMIQTVTNP-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 210000000214 mouth Anatomy 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920006136 organohydrogenpolysiloxane Polymers 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 125000005372 silanol group Chemical group 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明はメタクリル系樹脂とシリコーンゴムとの一体
化成型体の製造方法に関する。TECHNICAL FIELD The present invention relates to a method for producing an integrated molded body of a methacrylic resin and a silicone rubber.
［従来の技術］ 従来、メタクリル樹脂層とシリコーンゴム層とからなる
一体化成型体及びその製造方法が知られており、主にシ
リコーンゴムで裏装された義歯床及びその製造方法とし
て提案されている（特公昭44−5516号、特開昭55−3817
2号参照）。従来公知の一体化成型体は、メタクリル樹
脂層とシリコーンゴム層とが直接接触するように一体化
している。また、従来公知の一体化成型体は、メタクリ
ル樹脂成型体にシラン系プライマーを塗布しその上に室
温硬化性シリコーンゴム組成物を塗布して硬化させる
か、型内にメタクリル樹脂粒子とそのモノマーとラジカ
ル重合触媒を混和錬成した餅状物と付加反応硬化型シリ
コーンゴム組成物を層状に填入し、加圧下加熱して硬化
させることにより製造されている。[Prior Art] Conventionally, an integrated molded body composed of a methacrylic resin layer and a silicone rubber layer and a method for producing the same have been known, and have been proposed mainly as a denture base lined with silicone rubber and a method for producing the same. (Japanese Patent Publication No. 44-5516, Japanese Patent Laid-Open No. 55-3817)
See No. 2). The conventionally known integrated molded body is integrated so that the methacrylic resin layer and the silicone rubber layer are in direct contact with each other. Further, the conventionally known integrated molded body is obtained by applying a silane-based primer to a methacrylic resin molded body and then applying a room temperature curable silicone rubber composition to cure the methacrylic resin molded body, or methacrylic resin particles and a monomer thereof in a mold. It is produced by charging a rice cake-like material obtained by mixing and smelting a radical polymerization catalyst and an addition reaction-curable silicone rubber composition in a layered form and heating under pressure to cure.
［従来技術の問題点］ メタクリル樹脂層とシリコーンゴム層とからなる一体化
成型体はメタクリル樹脂とシリコーンゴムが異質の材料
であるため接着耐久性が必ずしも大きくないという欠点
がある。また、上述の従来公知の製造方法のうちプライ
マーを使用する製造方法は、プライマー中の有機溶剤に
よりメタクリル樹脂に亀裂が生じたり、形状が複雑であ
るとプライマーの塗り方が難しいという欠点があり、プ
ライマーを使用しない製造方法は餅状混合物が良好な状
態にある短期間に硬化性シリコーンゴム組成物を填入し
ないと良好な接着が得られないため、良好な接着を得る
のに熟練を必要とするという難点がある。[Problems of the Prior Art] The integrally molded body composed of the methacrylic resin layer and the silicone rubber layer has a drawback that the adhesion durability is not necessarily high because the methacrylic resin and the silicone rubber are different materials. Further, among the above-mentioned conventionally known manufacturing methods, a manufacturing method using a primer has a drawback that a methacrylic resin is cracked by an organic solvent in the primer, or the primer is difficult to apply when the shape is complicated, The production method using no primer requires skill to obtain good adhesion because good adhesion cannot be obtained unless the curable silicone rubber composition is filled in a short period of time when the mixture is in a good state. There is a difficulty to do it.
［問題点の解決手段とその作用］ この発明は、従来技術の上記欠点，難点を解消すべくな
されたものであり、メタクリル系樹脂層とシリコーンゴ
ム層とからなり、両層間の接着耐久性が優れた一体化成
型体を確実、かつ、簡易に製造する方法を提供すること
を目的とする。[Means for Solving Problems and Actions Thereof] The present invention has been made to solve the above-mentioned drawbacks and difficulties of the prior art. It is composed of a methacrylic resin layer and a silicone rubber layer, and the adhesion durability between both layers is improved. It is an object of the present invention to provide a method for reliably and easily manufacturing an excellent integrated molded body.
この目的は、型内にメタクリル系樹脂粒子とそのモノマ
ーとラジカル重合触媒からなる餅状混合物、該混合物と
硬化性シリコーンゴム組成物との混合物及び硬化性シリ
コーンゴム組成物を層状に填入し、型を閉じて加圧加熱
下硬化させることによって達成される。For this purpose, a methacrylic resin particle, a mixture of the monomer thereof and a radical polymerization catalyst, a mixture of the mixture and a curable silicone rubber composition, and a curable silicone rubber composition are layered in a mold. This is accomplished by closing the mold and curing under pressure and heat.
まず、メタクリル系樹脂層とシリコーンゴム層とが、メ
タクリル系樹脂とシリコーンゴムの混合物層を介して一
体化されている成型体における各層について説明する
に、メタクリル系樹脂層はポリメチルメタクリレートの
みから構成されていてもよいし、ポリメチルメタクリレ
ートの他に充填材や少量の顔料、安定剤などの添加剤、
あるいは重合触媒の未分解残渣を含有していてもよい。
また、ポリメチルメタクリレートはメチルメタクリレー
トのみのポリマーであってもよいし、少量の他ビニルモ
ノマー、例えば、アルキルメタクリレート、メチルアク
リレート、アルキルアクリレートまたはエチレングリコ
ールジメタクリレートとのコポリマーであってもよい。
変形、ひび割れの防止や機械的強度の向上といった観点
からメタクリレート100〜85重量％とエチレングリコー
ルジメチルメタクリレート15〜０（０を含まない）重量
％のコポリマーが好ましい。シリコーンゴム層は、白金
系触媒使用の付加反応硬化型シリコーンゴム、有機過酸
化物触媒使用のラジカル反応硬化型シリコーンゴム、縮
合反応硬化型シリコーンゴム等のいずれであってもよい
が、接着性、硬化の迅速性の点から前二者が好ましい。
ここで、白金系触媒作用の付加反応硬化型シリコーンゴ
ムの代表例は、両末端ビニル基封鎖ジオルガノポリシロ
キサン、オルガノハイドロジェンポリシロキサンおよび
白金系触媒を主剤とするものであり、有機過酸化物触媒
使用のラジカル反応硬化型シリコーンゴムの代表例は、
ビニル基含有ジオルガノポリシロキサンと有機過酸化物
触媒を主剤とするものである。シリコーンゴムは補強性
充填剤を含有していて強度が大きく、JIS−K6301による
硬度が20〜70のものが好ましく、歯科用成型体に使用す
るときは30〜50が好ましい。シリコーンゴムは増量充填
剤、耐熱剤、γ−メタクリロキシプロピルトリアルコキ
シシラン、γ−グリシドキシプロピルトリアルコキシシ
ランのような接着促進剤、顔料、付加反応遅延剤等の添
加剤を含有していてもよい。First, each layer in a molded body in which a methacrylic resin layer and a silicone rubber layer are integrated via a mixture layer of a methacrylic resin and a silicone rubber will be described. The methacrylic resin layer is composed only of polymethylmethacrylate. May be added, in addition to polymethylmethacrylate, fillers and small amounts of additives such as pigments, stabilizers,
Alternatively, it may contain an undecomposed residue of the polymerization catalyst.
Further, the polymethylmethacrylate may be a polymer of only methylmethacrylate, or may be a copolymer with a small amount of other vinyl monomers such as alkylmethacrylate, methylacrylate, alkylacrylate or ethyleneglycoldimethacrylate.
From the viewpoint of preventing deformation and cracking and improving mechanical strength, a copolymer of 100 to 85% by weight of methacrylate and 15 to 0% by weight of ethylene glycol dimethyl methacrylate (not including 0) is preferable. The silicone rubber layer may be any of addition reaction curable silicone rubber using a platinum catalyst, radical reaction curable silicone rubber using an organic peroxide catalyst, condensation reaction curable silicone rubber, etc. The former two are preferred from the viewpoint of rapid curing.
Here, a typical example of the addition reaction-curable silicone rubber having a platinum-based catalyst action is one in which both ends vinyl group-blocked diorganopolysiloxane, organohydrogenpolysiloxane, and a platinum-based catalyst are the main ingredients, and organic peroxides are used. A typical example of a radical reaction curable silicone rubber using a catalyst is
The main component is a vinyl group-containing diorganopolysiloxane and an organic peroxide catalyst. The silicone rubber preferably contains a reinforcing filler and has high strength, and has a hardness of 20 to 70 according to JIS-K6301, and preferably 30 to 50 when used in a dental molding. Silicone rubber contains additives such as an expanding filler, a heat-resistant agent, an adhesion promoter such as γ-methacryloxypropyltrialkoxysilane and γ-glycidoxypropyltrialkoxysilane, a pigment and an addition reaction retarder. Good.
メタクリル系樹脂とシリコーンゴムとの混合物層を構成
するメタクリル系樹脂とシリコーンゴムは前述のとおり
であり、メタクリル系樹脂とシリコーンゴムが少なくと
もほぼ均一に混合していることが好ましく、いわゆる相
互侵入型網状物、すなわちIPN層を形成していることが
より好ましい。両者が少なくともほぼ均一に混合するこ
とにより、両者の中間的な性状を具備し、メタクリル系
樹脂層とシリコーンゴム層双方への接着性、その耐久性
が向上する。The methacrylic resin and the silicone rubber forming the mixture layer of the methacrylic resin and the silicone rubber are as described above, and it is preferable that the methacrylic resin and the silicone rubber are mixed at least almost uniformly, so-called interpenetrating network. It is more preferable that an object, that is, an IPN layer is formed. When both are mixed at least substantially uniformly, the intermediate properties of both are provided, and the adhesiveness to both the methacrylic resin layer and the silicone rubber layer and the durability thereof are improved.
メタクリル系樹脂とシリコーンゴムの混合比率は、特に
制限されないが、接着性、その耐久性の点で重量比で
（2:8）〜（8:2）が好ましく、（4:6）〜（6:4）がより
好ましい。The mixing ratio of the methacrylic resin and the silicone rubber is not particularly limited, but in terms of adhesiveness and durability, the weight ratio is preferably (2: 8) to (8: 2), and (4: 6) to (6 : 4) is more preferable.
メタクリル系樹脂層、シリコーンゴム層、メタクリル系
樹脂とシリコーンゴムとの混合物層いずれもその形状は
特に制限されず、シート状、板状、ブロック状、義歯床
とその裏装材のような特定の物品の形状などであっても
よい。The shape of any of the methacrylic resin layer, the silicone rubber layer, and the mixture layer of the methacrylic resin and the silicone rubber is not particularly limited, and may be a sheet, a plate, a block, a denture base and a specific lining material thereof. It may be the shape of the article.
次に、メタクリル系樹脂層とシリコーンゴム層とが、メ
タクリル系樹脂とシリコーンゴムの混合物層を介して一
体化された成型体の製造方法について説明するに、いく
つかの製造方法が有り得るが、最も好ましいのは、型内
にメタクリル系樹脂粒子とそのモノマーとラジカル重合
触媒からなる餅状混合物、該餅状混合物と硬化性シリコ
ーンゴム組成物との混合物及び硬化性シリコーンゴム組
成物を層状に投入し、型を閉じて加圧加熱下硬化させる
という製造方法である。Next, there will be some manufacturing methods to explain a method for manufacturing a molded body in which a methacrylic resin layer and a silicone rubber layer are integrated via a mixture layer of a methacrylic resin and a silicone rubber. It is preferable that a methacrylic resin particle, a monomer thereof and a radical polymerization catalyst are mixed in a mold, a mixture of the mixture and a curable silicone rubber composition, and a curable silicone rubber composition are charged in layers. The manufacturing method is to close the mold and cure under pressure and heat.
ここで使用するメタクリル系樹脂粒子は前述したとおり
であり、餅状混合物のつくりやすさの点で微球状のもの
が好ましい。また、モノマーとしては、メチルメタクリ
レートのみでもよいし、メチルメタクリレートと少量の
その他のアルキルメタクリレート、メチルアクリレー
ト、アルキルアクリレートまたはエチレングリコールジ
メタクリレートとの混合物であってもよい。ラジカル重
合触媒としてはベンゾイルパーオキサイド、ジクミルパ
ーオキサイド、ジ（ｔ−ブチル）パーオキサイド、ジラ
ウリルパーオキサイドのような有機過酸化物、α，α′
−アゾビスイソブチロニトリルが例示される。ラジカル
重合触媒はメタクリル系樹脂およびそのモノマーと混合
されるのが常態であるが、メタクリル系樹脂粒子中にラ
ジカル重合触媒が残存しているときは、該触媒を別途添
加する必要は必ずしもない。ラジカル重合触媒の含有量
は、メタクリル系樹脂とそのモノマーの合計量の0.2〜
1.0重量％が好ましい。メタクリル系樹脂とそのモノマ
ーとラジカル重合触媒からなる餅状混合物は、メタクリ
ル系樹脂粒子、好ましくは粒子径30〜500μｍの微小球
のものとそのモノマーが重量比で（１〜３）:1、好まし
くは略2:1になるように混合して密閉容器中に保存する
ことにより得られる。混合物は当初は湿った砂のような
状態となり、次に糸引状となり、次につきたての餅状と
なり、最後にゴム状となるが、つきたての餅状のものを
成型に供する。The methacrylic resin particles used here are as described above, and those having a fine spherical shape are preferable from the viewpoint of easy preparation of the rice cake-like mixture. Further, as the monomer, only methyl methacrylate may be used, or a mixture of methyl methacrylate and a small amount of other alkyl methacrylate, methyl acrylate, alkyl acrylate or ethylene glycol dimethacrylate may be used. Radical polymerization catalysts include organic peroxides such as benzoyl peroxide, dicumyl peroxide, di (t-butyl) peroxide, and dilauryl peroxide, α, α ′.
-Azobisisobutyronitrile is exemplified. The radical polymerization catalyst is usually mixed with the methacrylic resin and its monomer, but when the radical polymerization catalyst remains in the methacrylic resin particles, it is not always necessary to add the catalyst separately. The content of radical polymerization catalyst is 0.2 to the total amount of methacrylic resin and its monomers.
1.0% by weight is preferred. The rice cake-like mixture composed of a methacrylic resin, its monomer and a radical polymerization catalyst is a methacrylic resin particle, preferably a microsphere having a particle diameter of 30 to 500 μm and its monomer in a weight ratio of (1 to 3): 1, preferably Can be obtained by mixing in a ratio of approximately 2: 1 and storing in a closed container. The mixture is initially in the form of moist sand, then in the form of string, then in the form of freshly fluffy cake, and finally in the form of rubber.
つきたての餅状では、メタクリル系樹脂がそのモノマー
により膨潤溶解して、粘度がほぼ均一となり可塑性を呈
している。In the freshly-prepared rice cake-like form, the methacrylic resin swells and dissolves due to the monomer, and the viscosity becomes almost uniform and it exhibits plasticity.
硬化性シリコーンゴム組成物には、大別して白金系触媒
使用の付加反応硬化型シリコーンゴム組成物と有機過酸
化物触媒使用のラジカル重合反応硬化型シリコーンゴム
組成物と縮合反応硬化型シリコーンゴム組成物がある
が、各層間の接着性の点で前二者が好ましく、比較的低
温で急速に硬化し、副生物が発生しない点で付加反応硬
化型が最も好ましい。The curable silicone rubber composition is roughly classified into an addition reaction curable silicone rubber composition using a platinum catalyst, a radical polymerization reaction curable silicone rubber composition using an organic peroxide catalyst, and a condensation reaction curable silicone rubber composition. However, the former two are preferable in terms of adhesion between respective layers, and the addition reaction curing type is most preferable in that it cures rapidly at a relatively low temperature and does not generate by-products.
硬化性シリコーンゴム組成物には、大別して液状ないし
ペースト状のものと粘土状のものがあるが、型内での流
動性の点で液状ないしペースト状のものが好ましく、か
つ、チキソトロピックなものが好ましい。硬化性シリコ
ーンゴム組成物は、流動性と機械的強度の点で補強性充
填剤を含有していて、硬化後のJIS−K6301による硬度が
20〜70のものが好ましく、成型体が歯科用成型体である
ときは、30〜50が好ましい。The curable silicone rubber composition is roughly classified into a liquid or paste type and a clay type, but a liquid or paste type is preferable from the viewpoint of fluidity in the mold, and a thixotropic one. Is preferred. The curable silicone rubber composition contains a reinforcing filler in terms of fluidity and mechanical strength, and has a hardness according to JIS-K6301 after curing.
20 to 70 are preferable, and when the molded product is a dental molded product, 30 to 50 is preferred.
メタクリル系樹脂とそのモノマーとラジカル重合触媒か
らなる餅状混合物と硬化性シリコーンゴム組成物との混
合物は、両者を重合・硬化しないような温度の下でヘ
ラ、ミキサー等で混合してつくる。両者の比率は特に限
定されないが、接着性、その耐久性の点で重量比で（2:
8）〜（8:2）が好ましく、（4:6）〜（6:4）がより好ま
しい。A mixture of a rice cake-like mixture composed of a methacrylic resin, its monomer and a radical polymerization catalyst, and a curable silicone rubber composition is prepared by mixing both with a spatula, a mixer or the like at a temperature at which they do not polymerize or cure. The ratio of the two is not particularly limited, but in terms of adhesion and durability, the weight ratio (2:
8) to (8: 2) are preferable, and (4: 6) to (6: 4) are more preferable.
両者を混合後、減圧下に置いて抱き込んだ気泡を除去す
ると接着強度が一段と向上する。After mixing the two, the mixture is placed under reduced pressure to remove the entrapped bubbles, and the adhesive strength is further improved.
成型に使用する型は、内容物を密封でき、加圧加熱に耐
え得るものであれば石こう型、金型、セラミック型等の
いずれでもよいが割型が操作しやすい。石こう型は種々
の形状の陰型をつくりやすく、成型後に石こう層を破壊
して成型物を取り出せるので便利である。The mold used for molding may be any of a gypsum mold, a mold, a ceramic mold, etc. as long as it can seal the contents and can withstand pressure and heating, but the split mold is easy to operate. Gypsum molds are convenient because it is easy to make negative molds of various shapes, and the molded product can be taken out by breaking the gypsum layer after molding.
本発明の成型体を製造するには、型内にメタクリル系樹
脂とそのモノマーとラジカル重合触媒からなる餅状混合
物を層状に填入し、ついで該餅状混合物と硬化性シリコ
ーンゴム組成物との混合物を該餅状混合物に密接するよ
うに層状に填入し、ついで該餅状混合物と硬化性シリコ
ーンゴム組成物との混合物層に密接するように硬化性シ
リコーンゴム組成物を層状に填入する。この際填入順序
を全く逆にしてもよい。型内面および割型の接合面にア
ルギン酸ナトリウム水溶液のような離型剤をうすく塗布
しておくと、成型品が取り出しやすい。ついで型を閉じ
て加圧加熱下内容物を硬化させる。加熱時間と温度は内
容物のすべてが完全に硬化する条件を適宜選ぶとよい。
型を加圧加熱するには、型をプレス等で挟圧して温水浴
または熱風オーブン中に投入してもよいし、型を電熱プ
レス成型機の熱板間に挟圧して加熱してもよい。内容物
が硬化後、型を取り出して放冷し、型を開いて成型物を
取り出す。In order to produce the molded product of the present invention, a rice cake-like mixture comprising a methacrylic resin, its monomer and a radical polymerization catalyst is layered in a mold, and then the rice cake-like mixture and the curable silicone rubber composition are mixed. The mixture is layered so as to be in intimate contact with the rice cake-like mixture, and then the curable silicone rubber composition is layered so as to be intimately in the mixture layer of the rice cake-like mixture and the curable silicone rubber composition. . At this time, the filling order may be reversed. If a mold release agent such as an aqueous solution of sodium alginate is thinly applied to the inner surface of the mold and the joint surface of the split mold, the molded product can be easily taken out. Then, the mold is closed and the contents are cured under pressure and heating. The heating time and temperature may be appropriately selected under the condition that all the contents are completely cured.
To press and heat the mold, the mold may be pressed with a press or the like and placed in a hot water bath or a hot air oven, or the mold may be heated by being pressed between hot plates of an electric heat press molding machine. . After the contents are cured, the mold is taken out and allowed to cool, the mold is opened and the molded product is taken out.
［実施例］ 次に、この発明の実施例を説明する。実施例中の部数は
重量部であり、粘度は25℃における値である。[Embodiment] Next, an embodiment of the present invention will be described. The number of parts in the examples is part by weight, and the viscosity is the value at 25 ° C.
実施例１ 第１図は、この発明の一実施例の一体化成型体の斜視図
であり、ポリメチルメタクリレート樹脂層１とシリコー
ンゴム層２とが、ポリメチルメタクリレート樹脂とシリ
コーンゴムの混合物層３を介して接着し一体化してい
る。Example 1 FIG. 1 is a perspective view of an integrated molding of one example of the present invention, in which a polymethylmethacrylate resin layer 1 and a silicone rubber layer 2 are a mixture layer 3 of a polymethylmethacrylate resin and a silicone rubber. It is bonded and integrated through.
ここで、シリコーンゴム層は白金系触媒使用の付加反応
硬化型シリコーンゴムでできており、ポリメチルメタク
リレート樹脂とシリコーンゴムの配合比率は重量比で2:
1である。Here, the silicone rubber layer is made of addition reaction curable silicone rubber using a platinum-based catalyst, and the compounding ratio of polymethylmethacrylate resin and silicone rubber is 2: 2 by weight.
Is 1.
この一体化成型体は、次の方法により製造した。すなわ
ち、歯科用の金属製フラスコ一対のうち、フラスコの下
盒に石こう泥をほぼいっぱいに流し込み、60mm×13mm×
19mmのワックスブロックを60mm×13mmの一面が上面とな
るように埋没させた。石こうが硬化後、石こう面に離型
剤を塗布し、これにフラスコの上盒を重ねて、これに石
こう泥を流し込み硬化させた。次に、上盒と下盒を分離
しワックスブロックを溶融して流出させ、60mm×13mm×
16mmの陰型を有する石こう割型を作成した。平均粒子型
50μｍのポリメチルメタクリレート樹脂球状粒子とメチ
ルメタクリレートを重合比で2:1の比率で混合し、両者
の0.5重量％のベンゾイルパーオキサイドを添加混合
し、シャーレ中に保管した。室温下で放置してつきたて
の餅上になったところで、上記石こう型の陰型の左端28
mmを埋めるように中子を使って填入した。This integrated molded body was manufactured by the following method. That is, of the pair of dental metal flasks, gypsum mud is poured almost completely into the bottom of the flask, and 60 mm × 13 mm ×
A 19 mm wax block was embedded so that one side of the 60 mm × 13 mm was the upper surface. After the gypsum hardened, a mold release agent was applied to the gypsum surface, the flask was overlaid with the mold release agent, and gypsum mud was poured into this to harden it. Next, separate the upper and lower burr, melt the wax block and let it flow out, 60 mm × 13 mm ×
A plaster mold with a 16 mm negative mold was created. Average particle type
50 μm polymethylmethacrylate resin spherical particles and methylmethacrylate were mixed at a polymerization ratio of 2: 1 and 0.5% by weight of both benzoyl peroxides were added and mixed and stored in a petri dish. When left at room temperature and it is on a freshly mochi, the left end of the gypsum-shaped negative 28
It was filled using a core to fill mm.
次に、上記の餅状混合物と白金系触媒使用の付加反応硬
化型シリコーンゴム組成物を重量比で2:1の比率でよく
混合して、石こう型内の餅状混合物に隣接するように4m
mの長さに填入した。なお、上記の付加反応硬化型シリ
コーンゴム組成物は、両末端ビニル基封鎖ジメチルポリ
シロキサン（粘度2000cs）100部、（CH3）2CH2＝CHSiO1
/2単位とSiO4/2単位からなるトルエン可溶性共重合体40
部、両末端トリメチルシロキサン基封鎖メチルハイドロ
ジェンポリシロキサン（粘度10cs）7.0部、ヘキサメチ
ルジシラザンで疎水化処理した比表面積200m2/gのヒュ
ームドシリカ37部、塩化白金酸とジビニルテトラメチル
ジシロキサンの錯体触媒を白金重量として全体量の12pp
mおよびメチルビニルシクロテトラシロキサン0.5部を均
一に混合したものであり、チキソトロピックなペースト
状である。硬化後の硬度は50である。この付加反応硬化
型シリコーンゴム組成物を、石こう型内の餅状混合物と
付加反応硬化型シリコーンゴム組成物との混合物に隣接
するように28mmの長さに填入した。石こう面同士が接す
るように上下のフラスコを合わせ、フラスコプレスで加
圧し、クランプで両フラスコを留めた。これを70℃の水
中に60分間投入し、ついで100℃の水中に120分間投入し
た。水中から取り出して室温下放冷し、フラスコを開
け、石こうを壊して大きさが60mm×13mm×19mmの成型体
を取り出した。メタクリル樹脂とそのモノマーの餅状混
合層、餅状混合物と付加反応硬化型シリコーンゴム組成
物との混合物層、付加反応硬化型シリコーンゴム組成物
層のいずれも十分に硬化しており、かつ、相互によく接
着しており、成型体の両端をもって45゜の角度に50回屈
曲しても相互に剥離しなかった。成型体の両端を反対方
向に引張ったところシリコーンゴム層の凝集破壊であっ
た。この成型作業を５回繰り返したが上記同様の結果を
得た。Next, the above-mentioned rice cake-like mixture and an addition reaction-curable silicone rubber composition using a platinum-based catalyst were mixed well at a weight ratio of 2: 1, and 4 m so as to be adjacent to the rice cake-like mixture in the plaster mold.
Fitted to a length of m. The above addition reaction-curable silicone rubber composition had 100 parts of both ends vinyl group-capped dimethylpolysiloxane (viscosity 2000 cs), (CH 3 ) 2 CH 2 = CHSiO 1
-Toluene-soluble copolymer 40 consisting of 1/2 unit and SiO4 / 2 unit
Parts, 7.0 parts of methylhydrogenpolysiloxane blocked with trimethylsiloxane groups at both ends (viscosity 10cs), 37 parts of fumed silica with a specific surface area of 200 m 2 / g hydrophobized with hexamethyldisilazane, chloroplatinic acid and divinyltetramethyldisiloxane 12 pp of the total amount of siloxane complex catalyst as platinum weight
It is a uniform mixture of m and 0.5 part of methylvinylcyclotetrasiloxane, and is in the form of a thixotropic paste. The hardness after curing is 50. The addition reaction-curable silicone rubber composition was filled to a length of 28 mm so as to be adjacent to the mixture of the dough-like mixture in the gypsum mold and the addition reaction-curable silicone rubber composition. The upper and lower flasks were combined so that the gypsum surfaces were in contact with each other, pressure was applied with a flask press, and both flasks were clamped with a clamp. This was put into water at 70 ° C. for 60 minutes, and then put into water at 100 ° C. for 120 minutes. It was taken out from water, allowed to cool at room temperature, the flask was opened, the gypsum was broken, and a molded body having a size of 60 mm × 13 mm × 19 mm was taken out. The methacrylic resin and its monomer are mixed in a dough-like layer, the mixture layer of the dough-like mixture and an addition reaction-curable silicone rubber composition, and the addition reaction-curable silicone rubber composition layer are sufficiently cured, and It adhered well to each other, and did not separate from each other even if it was bent 50 times at an angle of 45 ° with both ends of the molded body. When both ends of the molded body were pulled in opposite directions, cohesive failure of the silicone rubber layer occurred. This molding operation was repeated 5 times, but the same results as above were obtained.
比較例１ 実施例１において、餅状混合物と付加反応硬化型シリコ
ーンゴム組成物との混合物を使用しない以外は、同一の
条件でポリメチルメタクリレート樹脂とシリコーンゴム
の一体化成型体を製造した。この成型体の両端をもって
45゜の角度に４〜５回屈曲ところ部分的に剥離した。こ
の成型体の両端を反対方向に引っ張ったところポリメチ
ルメタクリレート樹脂層とシリコーンゴム層の界面剥離
が主体であった。この成型作業を５回繰り返したが上記
同様の結果を得た。Comparative Example 1 An integrated molded body of polymethylmethacrylate resin and silicone rubber was produced under the same conditions as in Example 1, except that the mixture of the dough-like mixture and the addition reaction-curable silicone rubber composition was not used. With both ends of this molded body
When it was bent 4 to 5 times at an angle of 45 °, it partially peeled off. When both ends of this molded body were pulled in opposite directions, the interfacial peeling between the polymethylmethacrylate resin layer and the silicone rubber layer was the main. This molding operation was repeated 5 times, but the same results as above were obtained.
実施例２ 実施例１における餅状混合物と付加反応硬化型シリコー
ンゴム組成物の混合比を重量比で1:2にした他は同様の
条件で一体化成型体を製造し、実施例１と同様の結果を
得た。Example 2 An integrated molding was produced under the same conditions except that the mixing ratio of the dough-like mixture and the addition reaction-curable silicone rubber composition in Example 1 was set to 1: 2 by weight, and the same procedure as in Example 1 was performed. Got the result.
実施例３ 第２図は、この発明の別の実施例の一体化成型体の斜視
図である。Embodiment 3 FIG. 2 is a perspective view of an integrally molded body according to another embodiment of the present invention.
人工歯４が植立した基部５はポリメチルメタクリレート
樹脂製であり、ポリメチルメタクリレート樹脂とシリコ
ーンゴムとの混合物層３を介してシリコーンゴム層２に
より裏装されている。The base 5 on which the artificial tooth 4 is erected is made of polymethylmethacrylate resin and is lined with the silicone rubber layer 2 via the mixture layer 3 of polymethylmethacrylate resin and silicone rubber.
ここで、シリコーンゴム層２は白金系触媒使用の付加反
応硬化型シリコーンゴムでできており、混合層３のポリ
メチルメタクリレート樹脂とシリコーンゴムの配合比率
は重量比で1:1である。この一体化成型体は次の方法に
より製造された。Here, the silicone rubber layer 2 is made of an addition reaction curable silicone rubber using a platinum-based catalyst, and the mixing ratio of the polymethylmethacrylate resin and the silicone rubber in the mixing layer 3 is 1: 1 by weight. This integrated molded body was manufactured by the following method.
すなわち、患者の口腔内の形態の型取りにより作られた
模型上で人工歯を植立し、排列したろう義歯を作成し
た。これを歯科用フラスコ内の石こう泥中に埋設し、石
こうを固めた。歯科用フラスコを加熱して流ろうして石
こう割型を作製した。実施例１のポリメチルメタクリレ
ート樹脂とメチルメタクリレートとベンゾイルパーオキ
サイドからなる餅状混合物と同じ餅状混合物の一部を石
こう割型の陰型内に填入し、上記餅状混合物と付加反応
硬化型シリコーンゴム組成物の重量比で1:1の混合物を
上記餅状混合物層上に薄く填入し、上記餅状混合物と付
加反応硬化型シリコーンゴム組成物の混合物層上に付加
反応硬化型シリコーンゴム組成物を填入した。ここで、
付加反応硬化型シリコーンゴム組成物は、両末端ビニル
基封鎖ジメチルポリシロキサン（粘度5000cs）100部、
両末端シラノール基封鎖メチルビニルシロキサン（粘度
40cs）6.0部、ジメチルジクロルシランで表面処理した
比表面積200m2/gのヒュームドシリカ35部、両末端トリ
メチルシロキシ基封鎖メチルハイドロジェンポリシロキ
サン3.4部および塩化白金酸を白金重量として組成物全
体量の10ppmからなり、室温下でチキソトロピックなペ
ースト状を呈していた。硬化後の硬度は40である。That is, artificial teeth were planted on a model made by patterning the shape of the patient's oral cavity to prepare an arranged wax denture. This was embedded in gypsum mud in a dental flask to solidify the gypsum. The dental flask was heated and run to prepare a plaster mold. A part of the same rice cake-like mixture of the polymethylmethacrylate resin of Example 1, methyl methacrylate and benzoyl peroxide was placed in a gypsum split type negative mold, and the above rice cake-like mixture and an addition reaction curing type. A mixture of a silicone rubber composition in a weight ratio of 1: 1 was thinly filled on the rice cake-shaped mixture layer, and the addition reaction-curable silicone rubber was formed on the mixture layer of the rice cake-shaped mixture and the addition reaction-curable silicone rubber composition. The composition was filled. here,
The addition reaction-curable silicone rubber composition is composed of 100 parts of dimethylpolysiloxane (viscosity 5000 cs) blocked with vinyl groups at both ends.
Both ends silanol group blocked methyl vinyl siloxane (viscosity
40cs) 6.0 parts, 35 parts of fumed silica having a specific surface area of 200 m 2 / g surface-treated with dimethyldichlorosilane, trimethylsiloxy group-blocked methylhydrogenpolysiloxane 3.4 parts at both ends and chloroplatinic acid as platinum weight The amount was 10 ppm, and it was in the form of a thixotropic paste at room temperature. The hardness after curing is 40.
上下フラスコを閉じフラスコプレスで挟圧し、クランプ
で上下フラスコを留めた。これを70℃の水中に60分間投
入し、ついで100℃の水中に120分間投入後フラスコを取
り出し、室温下放冷しフラスコを開け、石こうを破壊し
て、メタクリレート樹脂製基部の裏面が、メタクリル樹
脂と付加反応硬化型シリコーンゴム組成物の1:1混合物
層を介して付加反応硬化型シリコーンゴム層で裏層され
た義歯床を取り出した。The upper and lower flasks were closed, the flask was pressed with a flask press, and the upper and lower flasks were clamped. Put this in water at 70 ° C for 60 minutes, then put it in water at 100 ° C for 120 minutes, take out the flask, let it cool at room temperature, open the flask, destroy the gypsum, and reverse the methacrylate resin base to the methacrylic resin Then, the denture base backed with the addition reaction-curable silicone rubber layer was taken out through the 1: 1 mixture layer of the addition reaction-curable silicone rubber composition.
この義歯床は、ポリメチルメタクリレート樹脂製基部、
ポリメチルメタクリレート樹脂と付加反応硬化型シリコ
ーンゴムとの混合物層および付加反応硬化型シリコーン
ゴム層のいずれでもよく硬化しており、かつ、相互によ
く接着しており、義歯床裏面は弾力感に富んでいた。こ
の成型作業を３回繰り返したが、上記同様の良好な結果
を得た。This denture base has a polymethylmethacrylate resin base,
Both the mixture layer of polymethylmethacrylate resin and addition reaction-curable silicone rubber and the addition reaction-curable silicone rubber layer are well cured and adhere well to each other, and the denture base back surface is elastic. I was out. This molding operation was repeated 3 times, and good results similar to the above were obtained.
実施例４ 実施例３における付加反応硬化型シリコーンゴムに替え
て、有機過酸化物触媒使用のラジカル反応硬化型シリコ
ーンゴム組成物を使用する以外は実施例３と同一条件で
一体化成型体を製造した。Example 4 An integrated molding was produced under the same conditions as in Example 3 except that a radical reaction curable silicone rubber composition using an organic peroxide catalyst was used in place of the addition reaction curable silicone rubber in Example 3. did.
ただし、一体化成型体をフラスコから取り出した後、70
℃の熱水中に２時間浸漬して有機過酸化物の分解物を除
去した。However, after taking out the integrated molded body from the flask,
The decomposition product of the organic peroxide was removed by immersing in hot water at ℃ for 2 hours.
ここで、有機過酸化物触媒使用のラジカル反応硬化型シ
リコーンゴム組成物は、両末端ビニル基封鎖ジメチルポ
リシロキサン（粘度10000cs）100部、（CH3）2CH2＝CHS
iO1/2単位とSiO4/2単位からなるトルエン可溶性共重合
体レジン５部、ジメチルジクロルシランで処理した比表
面積200m2/gのヒュームドシリカ30部、1,1−ビス−ｔ−
ブチルパーオキシ−3,3,3−トリメチルシクロヘキサン
1.0部からなるチキソトロピックなペースト状物であ
り、硬化後の硬度が35である。Here, the radical reaction-curable silicone rubber composition using an organic peroxide catalyst is 100 parts of dimethylpolysiloxane blocked with vinyl groups at both ends (viscosity 10000cs), (CH 3 ) 2 CH 2 = CHS
5 parts of a toluene-soluble copolymer resin composed of iO1 / 2 units and SiO4 / 2 units, 30 parts of fumed silica having a specific surface area of 200 m 2 / g treated with dimethyldichlorosilane, 1,1-bis-t-
Butyl peroxy-3,3,3-trimethylcyclohexane
It is a thixotropic paste-like material consisting of 1.0 part, and has a hardness of 35 after curing.
この義歯床は、メチルメタクリレート樹脂製基部、メチ
ルメタクリレート樹脂とラジカル反応硬化型シリコーン
ゴムとの混合層、ラジカル反応硬化型シリコーンゴム層
のいずれでもよく硬化しており、かつ、相互によく接着
しており、義歯床裏面は弾力感に富んでいた。この成型
作業を３回繰り返したが、上記同様の良好な結果を得
た。This denture base is well cured with any of a methyl methacrylate resin base, a mixed layer of methyl methacrylate resin and radical reaction curable silicone rubber, and a radical reaction curable silicone rubber layer, and they adhere well to each other. And the back of the denture base was very elastic. This molding operation was repeated 3 times, and good results similar to the above were obtained.
［発明の効果］ この発明のメタクリル系樹脂層とシリコーンゴム層とが
メタクリル系樹脂とシリコーンゴムの混合層を介して一
体化された成型体の製造方法は、型内にメタクリル系樹
脂とそのモノマーとラジカル重合触媒からなる餅状混合
物、該混合物と硬化性シリコーンゴム組成物の混合物及
び硬化性シリコーンゴム組成物を層状に填入し、型を閉
じて加熱加圧下硬化させるので、各層間が相互によく接
着し、接着耐久性の優れた一体化成型体を確実、かつ、
簡易に製造できるという特徴がある。[Effects of the Invention] The method for producing a molded body in which the methacrylic resin layer and the silicone rubber layer of the present invention are integrated through the mixed layer of the methacrylic resin and the silicone rubber is a methacrylic resin and its monomer in a mold. A dough-shaped mixture comprising a radical polymerization catalyst and a mixture of the curable silicone rubber composition and the curable silicone rubber composition are layered, and the mold is closed and cured under heat and pressure. Adheres well to an integrated molded body with excellent adhesion durability, and
It has the feature that it can be easily manufactured.
第１図はこの発明の実施例１の一体化成型体であり、第
２図はこの発明の実施例３の一体化成型体の平面図であ
り、第３図はこの発明の実施例３の一体化成型体の裏面
図であり、第４図は第２図におけるＩ−Ｉ線の断面図で
ある。 １……ポリメチルメタクリレート樹脂層 ２……シリコーンゴム層 ３……ポリメチルメタクリレート樹脂とシリコーンゴム
の混合物層 ４……人工歯 ５……ポリメチルメタクリレート樹脂製基部FIG. 1 is an integrated molded body of Embodiment 1 of the present invention, FIG. 2 is a plan view of an integrated molded body of Embodiment 3 of the present invention, and FIG. 3 is a plan view of Embodiment 3 of the present invention. FIG. 4 is a back view of the integrated molded body, and FIG. 4 is a cross-sectional view taken along the line I-I in FIG. 2. 1 ... Polymethylmethacrylate resin layer 2 ... Silicone rubber layer 3 ... Mixture layer of polymethylmethacrylate resin and silicone rubber 4 ... Artificial tooth 5 ... Polymethylmethacrylate resin base
Claims (2)
ーとラジカル重合触媒からなる餅状混合物、該混合物と
硬化性シリコーンゴム組成物の混合物及び硬化性シリコ
ーンゴム組成物を層状に投入し、型を閉じて加圧加熱下
硬化させることを特徴とする、メタクリル系樹脂層とシ
リコーンゴム層とが、メタクリル系樹脂とシリコーンゴ
ムの混合物層を介して一体化された成型体の製造方法。1. A mold-like mixture comprising methacrylic resin particles, a monomer thereof and a radical polymerization catalyst, a mixture of the mixture and a curable silicone rubber composition, and a curable silicone rubber composition are charged in layers into a mold, A methacrylic resin layer and a silicone rubber layer are integrated via a mixture layer of a methacrylic resin and a silicone rubber, which is characterized in that the methacrylic resin layer and the silicone rubber layer are closed and cured under pressure and heating.
シリコーンゴム層が裏装材であり、成型体が歯科用成型
体である特許請求の範囲第１項記載の一体化された成型
体の製造方法。2. A methacrylic resin layer is a denture base,
The method for producing an integrated molded body according to claim 1, wherein the silicone rubber layer is a lining material and the molded body is a dental molded body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60208392A JPH072402B2 (en) | 1985-09-20 | 1985-09-20 | Method for producing integrated molding of methacrylic resin and silicone rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60208392A JPH072402B2 (en) | 1985-09-20 | 1985-09-20 | Method for producing integrated molding of methacrylic resin and silicone rubber |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27134993A Division JPH0753644B2 (en) | 1993-10-04 | 1993-10-04 | Dental molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6268742A JPS6268742A (en) | 1987-03-28 |
| JPH072402B2 true JPH072402B2 (en) | 1995-01-18 |
Family
ID=16555498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60208392A Expired - Lifetime JPH072402B2 (en) | 1985-09-20 | 1985-09-20 | Method for producing integrated molding of methacrylic resin and silicone rubber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH072402B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6058886B2 (en) * | 1978-09-12 | 1985-12-23 | 実 西山 | Dental molding for mounting |
| US4375505A (en) * | 1981-10-22 | 1983-03-01 | Eastman Kodak Company | Fuser member |
-
1985
- 1985-09-20 JP JP60208392A patent/JPH072402B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6268742A (en) | 1987-03-28 |
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