JPH0660263B2 - Method for producing polyvinyl acetal-based porous body having antifungal bactericidal property - Google Patents
Method for producing polyvinyl acetal-based porous body having antifungal bactericidal propertyInfo
- Publication number
- JPH0660263B2 JPH0660263B2 JP1249982A JP24998289A JPH0660263B2 JP H0660263 B2 JPH0660263 B2 JP H0660263B2 JP 1249982 A JP1249982 A JP 1249982A JP 24998289 A JP24998289 A JP 24998289A JP H0660263 B2 JPH0660263 B2 JP H0660263B2
- Authority
- JP
- Japan
- Prior art keywords
- substance
- polyvinyl acetal
- porous body
- based porous
- antifungal
- 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
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 title claims description 26
- 125000002777 acetyl group Chemical class [H]C([H])([H])C(*)=O 0.000 title claims description 26
- 229920002554 vinyl polymer Polymers 0.000 title claims description 26
- 230000000843 anti-fungal effect Effects 0.000 title claims description 17
- 230000000844 anti-bacterial effect Effects 0.000 title claims description 15
- 229940121375 antifungal agent Drugs 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000126 substance Substances 0.000 claims description 36
- 239000011148 porous material Substances 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 11
- 239000010419 fine particle Substances 0.000 claims description 9
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000012466 permeate Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000001954 sterilising effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 21
- 239000007788 liquid Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- XEFQLINVKFYRCS-UHFFFAOYSA-N Triclosan Chemical compound OC1=CC(Cl)=CC=C1OC1=CC=C(Cl)C=C1Cl XEFQLINVKFYRCS-UHFFFAOYSA-N 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000013618 particulate matter Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000002537 cosmetic Substances 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000003100 immobilizing effect Effects 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 101100119347 Plasmodium falciparum EXP-1 gene Proteins 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000003505 heat denaturation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Filtering Materials (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、防黴性あるいは殺菌性を有するポリビニルア
セタール系多孔質体の製造方法に関する。TECHNICAL FIELD The present invention relates to a method for producing a polyvinyl acetal-based porous body having antifungal or bactericidal properties.
（従来の技術） ポリビニルアセタール系多孔質体は、通気性、クッショ
ン性、緩衝性、吸水性等を有するため、その特長を生か
し、例えば水性化粧用のパフなど様々な用途に広く用い
られている。ポリビニルアセタール系多孔質体は、乾燥
時には硬化し、その柔軟性及び弾力性が失われるため、
一般には湿潤状態で使用されている。このため、保管す
る場合にも湿潤状態で保管することが多く、湿潤状態で
保管した場合には、黴が発生し易いという問題点があ
る。黴の発生は、衛生上、外観上及び取扱い上極めて問
題であり、何らかの方法により、ポリビニルアセタール
系多孔質体に、防黴性，殺菌性等を付与せしめることが
望まれている。(Prior Art) Since a polyvinyl acetal-based porous material has air permeability, cushioning property, cushioning property, water absorption property, etc., it is widely used in various applications such as puffs for water-based cosmetics by taking advantage of its features. . Polyvinyl acetal-based porous material is hardened when dried and loses its flexibility and elasticity.
Generally, it is used in a wet state. For this reason, even when it is stored, it is often stored in a wet state, and when it is stored in a wet state, there is a problem that mold easily occurs. The generation of mold is extremely problematic in terms of hygiene, appearance and handling, and it is desired that the polyvinyl acetal-based porous body be provided with mold resistance, sterilization and the like by some method.
ポリビニルアセタール系多孔質体などの各種多孔質体に
特定の機能を付与する試みは古くから行われている。例
えば、多孔質体に付与しようとする機能又は性質をもつ
物質を内添又は外添により施与する方法がその代表的な
ものとして夙に周知である。Attempts to impart a specific function to various porous materials such as polyvinyl acetal porous materials have been made for a long time. For example, a method of internally or externally adding a substance having a function or property to be imparted to a porous body is well known as a typical one.
そこで、ポリビニルアセタール系多孔質体に防黴性，殺
菌性を付与するために、上述の方法、すなわち、防黴
性、殺菌性等を有する微粒子粉体をポリビニルアセター
ル系多孔質体に内添又は外添する方法が考えられる。Therefore, in order to impart antifungal property and bactericidal property to the polyvinyl acetal-based porous body, the above-mentioned method, that is, the antifungal property, the fine particle powder having the bactericidal property and the like is internally added to the polyvinyl acetal-based porous body or A method of external addition is possible.
このうち内添法は、多孔質体の製造時に、その製造原液
に付与したい機能や性質を有する物質を添加する方法で
あり、この方法では添加する物質が固体のときは、その
添加物質を多孔質体の素材が被覆するため、効果を十分
に出すには、かなり大量に添加しなければならず、その
ため多孔質体の本来有する性能が低下し、更に機械的強
度も著しく低下する傾向があり好ましくない。また、添
加する物質が液状のときは多孔質体の構造内にうまく留
まらず、また留まったとしてもその後の固定化が難し
く、耐洗濯性等に問題を有し、耐久性のよいものを得ら
れないという欠点がある。Among these, the internal addition method is a method of adding a substance having a function or property to be added to the production stock solution during the production of the porous body, and in this method, when the added substance is a solid, Since the material of the porous body coats it, it has to be added in a considerably large amount in order to sufficiently bring out the effect, so that the performance originally possessed by the porous body tends to be lowered, and further the mechanical strength tends to be remarkably lowered. Not preferable. Also, when the substance to be added is liquid, it does not stay well in the structure of the porous body, and even if it stays, it is difficult to fix it thereafter, there is a problem in washing resistance, etc., and a product with good durability is obtained. There is a drawback that you cannot do it.
一方、多孔質体に新たな機能や性質を付与する物質を外
添する場合は、結合材と混合して付着させる方法や、単
独で含浸、コーティングする方法がある。このうち結合
材と混合して付着させる方法では、該物質が液状のとき
は滲みだしが問題となり、固体のときは結合材に該物質
が被覆され、更に全体に均一に固着する事が難しく、効
果を十分に発揮することができず、結果的に大量に添加
しなければならないという問題点がある。また、単独で
含浸、コーティングして付着する方法では固着性が悪
く、耐洗濯性等の耐久性に乏しいという欠点がある。On the other hand, in the case of externally adding a substance that imparts a new function or property to the porous body, there are a method of admixing with a binder and a method of impregnating and coating by itself. Among them, in the method of adhering by mixing with a binder, bleeding becomes a problem when the substance is liquid, and when the substance is solid, the substance is coated on the binder, and it is difficult to uniformly adhere to the whole, There is a problem in that the effect cannot be fully exerted, and consequently a large amount must be added. In addition, the method of impregnating and coating by itself alone has a drawback that the adherence is poor and the durability such as washing resistance is poor.
（発明が解決しようとする課題） 本発明者等は、既存の方法が有する上記問題点に鑑み鋭
意研究を続けた結果、本発明を完成したものであって、
その目的とするところは、ポリビニルアセタール系多孔
質体の有する好ましい特性を何ら損なうことなしに、ポ
リビニルアセタール系多孔質体に防黴性又は殺菌性を有
する物質が均一且つ効果的に固定化し、耐久性に優れた
防黴殺菌性を有するポリビニルアセタール系多孔質体を
効率よく製造する方法を提供するにある。(Problems to be Solved by the Invention) The present inventors have completed the present invention as a result of continuing diligent research in view of the above problems of the existing methods,
Its purpose is to uniformly and effectively immobilize a substance having antifungal property or bactericidal property on the polyvinyl acetal-based porous body without impairing the preferable properties of the polyvinyl acetal-based porous body, and durability. An object of the present invention is to provide a method for efficiently producing a polyvinyl acetal-based porous body having excellent antifungal bactericidal properties.
（課題を解決するための手段） 上述の目的は、ポリビニルアセタール系多孔質体に防黴
性または殺菌性を有する物質を固定化するに際し、被固
定化物質として微粒子状物質を用い、該微粒子状物質を
分散含有するウレタン系樹脂の溶液又は分散液をポリビ
ニルアセタール系多孔質体に施与した後、加熱して被固
定化物質を溶融状態で多孔質体微細孔内部に拡散浸透す
ると共に、ウレタン系樹脂を反応硬化せしめることを特
徴とする防黴殺菌性を有するポリビニルアセタール系多
孔質体の製造方法によって達成される。(Means for Solving the Problem) The above-mentioned object is to use a fine particle substance as the substance to be immobilized when immobilizing a substance having antifungal or bactericidal properties on the polyvinyl acetal-based porous body, After applying a solution or dispersion of a urethane-based resin containing a substance dispersed therein to a polyvinyl acetal-based porous body, the substance to be immobilized is heated and diffused and permeated into the fine pores of the porous body in a molten state, and urethane is also applied. This is achieved by a method for producing a polyvinyl acetal-based porous body having antifungal bactericidal properties, which is characterized in that a system-based resin is cured by reaction.
本発明の方法は、防黴性または殺菌性を有する微粒子状
物質をウレタン系樹脂の溶液又は分散液に投入し、十分
撹拌して該微粒子状物質を均一に分散せしめた後、この
分散液をポリビニルアセタール系多孔質体に施与するも
のである。上記分散液の施与方法としては、例えば浸
漬，吹き付け，塗布等が挙げられるが、一般には、上記
分散液中にポリビニルアセタール系多孔質体を浸漬し分
散液を浸透させ、適宜な手段にて過剰の液分を除去する
方法が好適である。然る後、加熱処理を行うが、この加
熱処理の目的は、該微粒子状物質を融点以上に加熱して
融解し、液体の状態で多孔質微細構造内に浸透せしめる
と共に、共存する水又は有機溶媒を除去して乾燥状態と
し、更に被固定化物質を含有したウレタン系樹脂を硬化
せしめ安定な薄膜被膜を形成することにある。The method of the present invention is a method in which a fine particle substance having antifungal property or bactericidal property is added to a solution or dispersion of a urethane-based resin, and sufficiently stirred to disperse the fine particle substance uniformly, It is applied to a polyvinyl acetal-based porous body. Examples of the method for applying the dispersion include dipping, spraying, coating and the like. Generally, the polyvinyl acetal-based porous body is dipped in the dispersion to allow the dispersion to permeate, and by an appropriate means. A method of removing excess liquid is preferable. After that, heat treatment is carried out, and the purpose of this heat treatment is to heat and melt the particulate matter above its melting point to allow it to permeate into the porous microstructure in a liquid state and to coexist with water or organic substances. The purpose is to remove the solvent and make it dry, and then to cure the urethane resin containing the substance to be immobilized to form a stable thin film.
加熱処理後、常温にまで冷却すれば、一旦融解した微粒
子状物質は再び固化し、固着するが、その状態はもはや
微粒子ではなく無定形で且つ均一に固着しているため、
被固定化物質は強固に固着されるため、防黴性や殺菌性
の効果がポリビニルアセタール系多孔質体全体に耐久性
よく均一に付与されることになる。After the heat treatment, if cooled to room temperature, the once melted particulate matter solidifies again and adheres, but since the state is no longer particulate, it is amorphous and adheres uniformly.
Since the substance to be immobilized is firmly fixed, the effects of antifungal property and bactericidal property are uniformly imparted to the entire polyvinyl acetal porous body with good durability.
本発明に適用されるウレタン系樹脂としては、特に限定
されるものではないが、自己架橋型のものが好ましく、
また他の熱硬化性樹脂を混合してもよい。上記ウレタン
系樹脂を溶解又は分散する液は、水でも有機溶媒でもよ
い。上記ウレタン系樹脂は、例えば５〜３０重量％の濃
度の溶液又は分散液として用いられる。The urethane resin applied to the present invention is not particularly limited, but a self-crosslinking type is preferable,
Further, other thermosetting resin may be mixed. The liquid for dissolving or dispersing the urethane resin may be water or an organic solvent. The urethane resin is used as a solution or dispersion having a concentration of 5 to 30% by weight, for example.
本発明に用いる被固定化物質である微粒子状物質は、防
黴性または殺菌性を有するものであり、その粒径は使用
するポリビニルアセタール系多孔質体の孔径より十分小
さいものであって、好ましくは１００μｍ以下、更に好
ましくは１０μｍ以下である。また、該微粒子状物質
は、常温のウレタン系樹脂の溶液中又は分散液中では固
体状態であるが、融点を有し加熱することより融解する
ものである。上記微粒子状物質の付着量については、そ
のものの効果によって異なるが、製品の乾燥重量に対し
て２重量％を超えない範囲であることが好ましい。The particulate substance which is the substance to be immobilized used in the present invention has antifungal property or bactericidal property, and its particle size is sufficiently smaller than the pore size of the polyvinyl acetal-based porous material to be used, preferably Is 100 μm or less, more preferably 10 μm or less. The fine particle substance is in a solid state in a solution or dispersion liquid of a urethane resin at room temperature, but has a melting point and melts when heated. The amount of the particulate matter attached depends on the effect thereof, but is preferably within the range of not more than 2% by weight based on the dry weight of the product.
上記微粒子状物質の融点は、本発明の目的より、本発明
に係るポリビニルアセタール系多孔質体の融点または熱
変性温度（通常８０〜１００℃）より低いものであり、
好ましくは結合材として用いられるウレタン系樹脂の熱
硬化温度より低いものである。このような物質として
は、例えばω−ポリクロルヒドロキシジフェニルエーテ
ルを挙げることができ、就中、２，４，４′−トリクロ
ル−２′−ヒドロキシジフェニルエーテルが優れた防黴
性を付与するものとして好適である。For the purpose of the present invention, the melting point of the particulate matter is lower than the melting point or heat denaturation temperature (usually 80 to 100 ° C.) of the polyvinyl acetal-based porous body according to the present invention,
It is preferably lower than the thermosetting temperature of the urethane resin used as the binder. As such a substance, for example, ω-polychlorohydroxydiphenyl ether can be mentioned. Among them, 2,4,4′-trichloro-2′-hydroxydiphenyl ether is preferable as a substance imparting excellent antifungal property. is there.
（発明の効果） 本発明の方法によれば、防黴性又は殺菌性を有する微粒
子状物質をポリビニルアセタール系多孔質体の物性を阻
害することなく、不定形で全体に均一に固着することが
でき、且つ該固定化物質がウレタン系樹脂の薄膜被膜に
固化状態で保護されるため、、例えば洗濯等の外力にも
強く、また昇華性をもつ物質であっても、その昇華を十
分に抑制することができる。また、固定化された物質が
ポリビニルアセタール系多孔質体から滲みだしたり、た
れ落ちたりする等の脱漏を起こすことなく、多孔質体は
ベトツキ感がない（タックフリーである）。(Effect of the Invention) According to the method of the present invention, it is possible to uniformly fix a particulate substance having an antifungal property or a bactericidal property to the entire polyvinyl acetal-based porous material in an indefinite shape without impairing the physical properties thereof. In addition, since the immobilizing substance is protected by the urethane resin thin film coating in a solidified state, it is resistant to external force such as washing, and even if it is a substance having sublimability, the sublimation is sufficiently suppressed. can do. In addition, the immobilized substance does not leak or leak from the polyvinyl acetal-based porous body, and the porous body does not have a sticky feeling (tack-free).
すなわち、本発明の方法によれば、ポリビニルアセター
ル系多孔質体に防黴性又は殺菌性を有する物質を耐久性
よく固定化することができ、しかも付着量に対し高い効
率でその効果を発揮させることが可能となる。That is, according to the method of the present invention, it is possible to immobilize a substance having antifungal or bactericidal properties to the polyvinyl acetal-based porous body with good durability, and to exert its effect with high efficiency with respect to the adhered amount. It becomes possible.
本発明の方法を利用すれば、化粧用パフ，吸収材，クッ
ション材，緩衝材あるいは気体用液体用の濾材等に、防
黴性又は殺菌性を耐久性よく付与することができ、その
用途の一層の拡大が可能となる。就中、化粧用の水性パ
フの最大の欠陥とされている発黴を耐久性よく抑制する
ことが可能となる。By using the method of the present invention, it is possible to impart antifungal property or bactericidal property to a cosmetic puff, an absorbent material, a cushion material, a cushioning material, a filter material for a gas liquid, or the like with good durability. Further expansion is possible. In particular, it becomes possible to suppress the mold development, which is said to be the biggest defect of the water-based puff for cosmetics, with good durability.
以下、実施例をあげて本発明方法を具体的に説明する。Hereinafter, the method of the present invention will be specifically described with reference to examples.
（実施例） ウレタン系樹脂〔商品名：テイサンウレタンＥＸＰ−１
２６，帝国化学学(株)製〕のエマルジョンを稀釈して、
濃度２０％のエマルジョンに調整し、微粒子状物質とし
て２，４，４′−トリクロル−２′−ヒドロキシジフェ
ニルエーテルの粉末を上記エマルジョンに対し0.65重量
％加え撹拌し、均一分散液とした。(Example) Urethane resin [Product name: Teisan Urethane EXP-1
26, Teikoku Kagaku Co., Ltd.] emulsion was diluted,
An emulsion having a concentration of 20% was prepared, and powder of 2,4,4'-trichloro-2'-hydroxydiphenyl ether as a fine particle substance was added to the above emulsion in an amount of 0.65% by weight and stirred to obtain a uniform dispersion liquid.
この分散液に、気孔率９０容量％、平均気孔径５００μ
のポリビニルアセタール系多孔質体よりなるパフを浸漬
し、遠心分離機を用いて過剰な液を除去した後、８０℃
で３時間熱処理を行った。This dispersion liquid had a porosity of 90% by volume and an average pore diameter of 500 μ.
The puff made of the polyvinyl acetal-based porous material of 1 is soaked, and the excess liquid is removed using a centrifuge, and then at 80 ° C.
Was heat-treated for 3 hours.
樹脂の付着量は14.6重量％で、２，４，４′−トリクロ
ル−２′−ヒドロキシジフェニルエーテルの付着量は0.
37重量％であった。このものを顕微鏡で観察した結果、
２，４，４′−トリクロル−２′−ヒドロキシジフェニ
ルエーテルの粉末は全く見当たらず、完全に融解含浸さ
れたことが確認された。このものの防黴試験は極めて良
好であり、また１０回の洗濯後もその効果はほとんど変
わることがなかった。The amount of resin attached was 14.6% by weight, and the amount of 2,4,4'-trichloro-2'-hydroxydiphenyl ether attached was 0.
It was 37% by weight. As a result of observing this thing under a microscope,
No powder of 2,4,4'-trichloro-2'-hydroxydiphenyl ether was found, confirming that it was completely melt-impregnated. The mildew-proof test of this product was extremely good, and the effect was almost unchanged after washing 10 times.
（比較例） 実施例と同じ処方にてエマルジョンを調製した。微粒子
状物質として、約１５０℃の融点を有する高密度ポリエ
チレン〔商品名：サンテック−ＨＤ−Ｊ−２４０，旭化
成工業製〕の微粉末を用い、上記エマルジョンに対し0.
65重量％加え撹拌して、均一分散液とした。(Comparative Example) An emulsion was prepared with the same formulation as in the example. As the fine particle substance, a fine powder of high-density polyethylene (trade name: Suntec-HD-J-240, manufactured by Asahi Kasei) having a melting point of about 150 ° C. was used.
65 wt% was added and stirred to obtain a uniform dispersion liquid.
この液に、実施例と同様のパフを浸漬し、遠心分離機を
用いて過剰な液を除去した後、８０℃で３時間熱処理を
行った。A puff similar to that used in the example was dipped in this solution, an excess solution was removed using a centrifuge, and then heat treatment was performed at 80 ° C. for 3 hours.
樹脂の付着量は１２．８重量％で、高密度ポリエチレン
の付着量は0.25量％であった。このものを顕微鏡で観察
した結果、高密度ポリエチレンは当初の微粉末と同じ形
態で多孔質骨格に付着しており、内部への浸透はされて
いなかった。The amount of resin attached was 12.8% by weight, and the amount of high-density polyethylene attached was 0.25% by weight. As a result of observing this with a microscope, the high-density polyethylene was attached to the porous skeleton in the same form as the original fine powder, and was not permeated into the inside.
１０回洗濯を行った後、再度顕検したところ、付着微粉
末の量はかなり少なくなっており、洗濯によって脱落し
ていた。After washing 10 times, the specimen was again examined. As a result, the amount of the adhered fine powder was considerably small, and it was removed by washing.
Claims (1)
または殺菌性を有する物質を固定化するに際し、被固定
化物質として微粒子状物質を用い、該微粒子状物質を分
散含有するウレタン系樹脂の溶液又は分散液をポリビニ
ルアセタール系多孔質体に施与した後、加熱して被固定
化物質を溶融状態で多孔質体微細孔内部に拡散浸透する
と共に、ウレタン系樹脂を反応硬化せしめることを特徴
とする防黴殺菌性を有するポリビニルアセタール系多孔
質体の製造方法。1. When fixing a substance having antifungal or bactericidal properties to a polyvinyl acetal-based porous body, a fine particle substance is used as a substance to be immobilized, and a urethane resin containing the fine particle substance dispersed therein is contained. After applying the solution or dispersion to the polyvinyl acetal-based porous material, it is heated to diffuse and permeate the substance to be immobilized in the micropores of the porous material in a molten state, and to cure the urethane-based resin by reaction. A method for producing a polyvinyl acetal-based porous body having antifungal and sterilizing properties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1249982A JPH0660263B2 (en) | 1989-09-26 | 1989-09-26 | Method for producing polyvinyl acetal-based porous body having antifungal bactericidal property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1249982A JPH0660263B2 (en) | 1989-09-26 | 1989-09-26 | Method for producing polyvinyl acetal-based porous body having antifungal bactericidal property |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03111436A JPH03111436A (en) | 1991-05-13 |
| JPH0660263B2 true JPH0660263B2 (en) | 1994-08-10 |
Family
ID=17201071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1249982A Expired - Lifetime JPH0660263B2 (en) | 1989-09-26 | 1989-09-26 | Method for producing polyvinyl acetal-based porous body having antifungal bactericidal property |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0660263B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4766598B2 (en) * | 2005-11-07 | 2011-09-07 | 株式会社イーナ | Road surface installation type guide plate |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5269981A (en) * | 1975-12-10 | 1977-06-10 | Tokyo Yuuki Kagaku Kougiyou Kk | Improved cellulose sponge compound |
| JPS6367268A (en) * | 1987-08-14 | 1988-03-26 | ミノルタ株式会社 | Packaging material for optical apparatus having transpiring fungiproof material |
| JPH0733452B2 (en) * | 1987-09-24 | 1995-04-12 | 西川ゴム工業株式会社 | Hydrophilic puff manufacturing method |
-
1989
- 1989-09-26 JP JP1249982A patent/JPH0660263B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03111436A (en) | 1991-05-13 |
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