JPS5946774B2 - Welder Kakousei no Kairiyousareta Netsukaso Seigou Seijyushi Sheet - Google Patents
Welder Kakousei no Kairiyousareta Netsukaso Seigou Seijyushi SheetInfo
- Publication number
- JPS5946774B2 JPS5946774B2 JP50144136A JP14413675A JPS5946774B2 JP S5946774 B2 JPS5946774 B2 JP S5946774B2 JP 50144136 A JP50144136 A JP 50144136A JP 14413675 A JP14413675 A JP 14413675A JP S5946774 B2 JPS5946774 B2 JP S5946774B2
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- welding
- welder
- present
- seijyushi
- 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
Links
- 238000000034 method Methods 0.000 claims description 18
- 239000000126 substance Substances 0.000 claims description 7
- 229920003002 synthetic resin Polymers 0.000 claims description 7
- 239000000057 synthetic resin Substances 0.000 claims description 7
- 230000020169 heat generation Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 238000004898 kneading Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 description 22
- 239000011347 resin Substances 0.000 description 22
- 238000003466 welding Methods 0.000 description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- 230000000704 physical effect Effects 0.000 description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001756 Polyvinyl chloride acetate Polymers 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical compound C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
【発明の詳細な説明】
本発明はウエルダー加工性の改良された熱可塑性合成樹
脂シート（以下単に樹脂シートと呼ぶ）を用いることに
よるシートの誘電接合方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for dielectrically joining sheets by using a thermoplastic synthetic resin sheet (hereinafter simply referred to as a resin sheet) with improved welding processability.
従来、樹脂シート相互を接合するための各種方法の中で
、よく用いられているものの一つとして高周波による接
合方法、つまりウエルダー加工方法がある。Conventionally, among various methods for joining resin sheets to each other, one of the commonly used methods is a joining method using high frequency, that is, a welding method.
このウエルダー加工方法は表面仕上り状態がよく、特に
厚いシート類の接合に賞用されている。ところで、この
ウエルダー加工方法には、一部種類の樹脂シートにしか
適用できないという大きな欠点がある。すなわち、合成
樹脂の中でも、極性の強いものほどウエルダー加工性が
よく、極性が弱くなるに従つて、このウエルダー加工性
は低下し、無極性樹脂ではウエルダー加工は全く不可能
である。例えば、ポリ塩化ビニール、ポリ酢酸ビニール
等のごとき極性の強い樹脂のウエルダー加工性はきわめ
て良く、反面ポリエチレン、ポリプロピレン等のごとき
無極性の樹脂では、ウエルダー加工性が全くない。This welding method provides a good surface finish and is especially used for joining thick sheets. However, this welding method has a major drawback in that it can only be applied to some types of resin sheets. That is, among synthetic resins, the more polar the synthetic resin, the better the welding processability, and as the polarity becomes weaker, the welding processability decreases, and welding is completely impossible with non-polar resins. For example, highly polar resins such as polyvinyl chloride and polyvinyl acetate have extremely good weldability, while nonpolar resins such as polyethylene and polypropylene have no weldability at all.
また、極性の強いセクションと極性の弱い、ないしは無
極性のセクションとから成る共重合体、つまり極性と無
極性との中間に位置するごとき樹脂では、極性の強いセ
クションと、極性の弱い、ないしは無極性のセクション
との比率によつてウエルダー加工性の良否が左右される
。例えば、エチレン−酢酸ビニル共重合体にあつては、
エチレン含有量が、８０％以上になると、そのウエルダ
ー加工性はきわめて悪くなる。ところでウエルダー加工
とは、樹脂シートを高周波電界中におくことにより樹脂
シート内部を発熱せしめて、樹脂シート相互を接合する
ものであるが、この場合、樹脂シートの電気的特性、す
なわち、誘電率（ε）と誘電損失（ｔａｎδ）との積の
値（以下ε・ ｔａｎδと記す）がその内部発熱に大き
く影響し、その値が大きい程内部発熱が大きいことはよ
く知られているところである。In addition, in a copolymer consisting of a strongly polar section and a weakly polar or non-polar section, that is, a resin that is located between polar and non-polar, a highly polar section and a weakly polar or non-polar section may be formed. The quality of welding workability is determined by the ratio of the steel section to the steel section. For example, in the case of ethylene-vinyl acetate copolymer,
When the ethylene content exceeds 80%, the welding processability becomes extremely poor. By the way, welding is a process in which the resin sheets are placed in a high-frequency electric field to generate heat inside the resin sheets and join the resin sheets together.In this case, the electrical properties of the resin sheets, that is, the dielectric constant ( It is well known that the value of the product of ε) and dielectric loss (tan δ) (hereinafter referred to as ε·tan δ) greatly influences the internal heat generation, and the larger the value, the greater the internal heat generation.
したがつて、従来は、ウエルダー加工性の悪い樹脂に対
しては、電気的特性の優れた他の樹脂をブレンドするこ
と、すなわち、ポリマーブレンド法によつてウエルダ一
加性を改良することが行われている。Therefore, conventionally, resins with poor welding processability were blended with other resins with excellent electrical properties, that is, the welding property was improved by a polymer blend method. It is being said.
しかしながら、このポリマーブレンド法においては、樹
脂相互の溶解度パラメーター（ＳＯＩｕｂｉｔｉｔｙＰ
ａｒａｍｅｔｅｒＳＰ）の差等による相溶性の問題、あ
るいは、ブレンドポリマーシートにおいて往々にしてみ
られる。However, in this polymer blending method, the mutual solubility parameter (SOIubityP
Compatibility problems due to differences in parameter SP) or blend polymer sheets are often encountered.
物理的性質劣化の問題等種々の欠点が指摘され、きわめ
て、大きな問題となつている。本発明者は、樹脂シート
のウエルダ一加工における叙上のごとき問題に鑑み、鋭
意研究の結果、物理的性質において何の欠点もなく、し
かもきわめて簡単に提供し得るウエルダ一加工性の改良
された樹脂シートの開発に成功したものである。Various drawbacks have been pointed out, such as the problem of deterioration of physical properties, and this has become an extremely serious problem. In view of the above-mentioned problems in the welding process of resin sheets, the inventors of the present invention have conducted extensive research to find an improved welding process that has no drawbacks in physical properties and can be provided extremely easily. This was the successful development of a resin sheet.
本発明は、１種から成る、あるいは２種以上を混合して
成る熱可塑性合成樹脂に対してε・Ｔａｎδが０．１以
上の無機物質を５〜２００ＰＨＲ添加混練してシート化
したことを特徴とする樹脂シートに関するものである。
すなわち、本発明は、ε・Ｔａｎδが０．１以上である
無機物質を混練することによつて、樹脂シートの高周波
による内部発熱性を向上させ、本来ウエルダ一加性の悪
い樹脂シートのウエルダ一加を可能ならしめようとする
ものである。The present invention is characterized in that 5 to 200 PHR of an inorganic substance with ε and Tan δ of 0.1 or more is added to a thermoplastic synthetic resin consisting of one type or a mixture of two or more types and kneaded to form a sheet. The present invention relates to a resin sheet.
That is, the present invention improves the internal heat generation property of the resin sheet by high frequency by kneading an inorganic substance having ε and Tan δ of 0.1 or more, thereby improving the weldability of the resin sheet, which originally has poor weldability. The aim is to make it possible to
本発明において混練される無機物質のε・Ｔａｎδは０
．１以上のものでなければならないが、このε・Ｔａｎ
δの値は、高周波による内部発熱性を向上させ、ウエル
ダ一加を可能ならしめるという本発明の目的を達成する
ために必要なものである。ε・Tanδ of the inorganic substance kneaded in the present invention is 0
．． It must be 1 or more, but this ε・Tan
The value of δ is necessary in order to achieve the object of the present invention, which is to improve the internal heat generation property due to high frequency and to enable welding.
このような、ε・Ｔａｎδが０．１以上の無機物質とし
ては、シリカ、ホワイトカーボン、カーボン、酸化チタ
ン、炭酸カルシウム、水酸化アルミニウム、等が上げら
れる。また、本発明においては、上記無機物質の添加量
を５〜２００ＰＨＲに限定するが、これは、５ＰＨＲ以
下ではウエルダ一加性の改良という本発明の目的を達成
し得ず、又、２００ＰＨＲ以上では、物理的性質面にお
いて多少の劣化がみられ、樹脂シート本来の物性を損わ
ないという本発明の一方の目的を達成し得ないからであ
る。Examples of such inorganic substances having ε and Tan δ of 0.1 or more include silica, white carbon, carbon, titanium oxide, calcium carbonate, aluminum hydroxide, and the like. Further, in the present invention, the amount of the inorganic substance added is limited to 5 to 200 PHR, but this is because if the amount is less than 5 PHR, the purpose of the present invention, which is to improve the welding property, cannot be achieved, and if it is more than 200 PHR, the purpose of the present invention cannot be achieved. This is because some deterioration is observed in terms of physical properties, and one of the objects of the present invention, which is not to impair the original physical properties of the resin sheet, cannot be achieved.
さらに、本発明に云う無機物質としては、樹脂成分への
添加混線上のトラブル回避、得られる樹脂シートの物性
劣化防止等の面から、粉状あるいは粒状で、しかもその
平均粒径が５００μ以下のものが好ましい。Furthermore, the inorganic substances referred to in the present invention are powdery or granular with an average particle size of 500μ or less, in order to avoid troubles such as cross-contamination when added to resin components, and to prevent deterioration of the physical properties of the resulting resin sheet. Preferably.
なお、本発明のシート化は、エキストレージヨン法、カ
レンダー法等通常の方法によつて行われ得るものであり
、本発明方法を適用して効果を上げ得る代表的熱可塑性
樹脂としては、エチレン酢酸ビニル共重合体、ポリオレ
フイン系樹脂、塩素化ポリエチレン等ほとんどの熱可塑
性合成樹脂である。The sheet formation of the present invention can be carried out by a conventional method such as an extrusion method or a calendar method. Typical thermoplastic resins that can be effectively applied by the method of the present invention include ethylene. Most thermoplastic synthetic resins include vinyl acetate copolymers, polyolefin resins, and chlorinated polyethylene.
さらにまた、本発明でいう樹脂シートとは、熱可塑性樹
脂の単一シートのみを指すのではなく、当該、単一シー
トと編織布とを貼合せた、いわゆる、積層シート等をも
含むものである。Furthermore, the term "resin sheet" as used in the present invention does not refer only to a single sheet of thermoplastic resin, but also includes a so-called laminated sheet in which a single sheet and a textile fabric are laminated together.
以下、実施例によつて、本発明をさらに具体的に説明す
る。Hereinafter, the present invention will be explained in more detail with reference to Examples.
実施例
エチレン８５％、酢酸ビニル１５％から成るエチレン一
酢酸ビニル共重合体に対して、ステアリン酸亜鉛１ＰＨ
Ｒ１平均粒径４００μ、ε・Ｔａｎδ０．１５のシリカ
を２０ＰＨＲ添加し、カレンダー法によつて、１４０℃
、１０分間混練して、厚さ０．４７１ｔｍのシートを得
た。Example: Zinc stearate 1PH to ethylene monovinyl acetate copolymer consisting of 85% ethylene and 15% vinyl acetate.
20 PHR of silica with an R1 average particle size of 400 μ and ε・Tan δ 0.15 was added and heated at 140°C by a calendar method.
The mixture was kneaded for 10 minutes to obtain a sheet with a thickness of 0.471 tm.
このようにして得られたエチレン一酢酸ビニルシート２
枚を６０Ｃ！！ｌ積ね合わせ、これを、電圧２ＫＶ１周
波数４０．６８Ｍｈｚ１の高周波電界中で、１０秒間、
２０秒間、３０秒間に分けて、ウエルダ一加工を施した
ところ、いづれの加工時間によつてもシート体は相互に
強く接合された。比較例
ステアリン酸亜鉛１ＰＨＲを混合した素施例１と同じエ
チレン一酢酸ビニル共重合体を、実施例１と同様の条件
下でカレンダー法によつて、厚さ０．４ｍｍのエチレン
一酢酸ビニル共重合体シートを得た。Thus obtained ethylene monoacetate vinyl sheet 2
60C for a piece! ! 1 stacked, and this was applied for 10 seconds in a high frequency electric field with a voltage of 2KV and a frequency of 40.68Mhz1.
When welding was performed for 20 seconds and 30 seconds, the sheets were strongly bonded to each other regardless of the processing time. Comparative Example The same ethylene monovinyl acetate copolymer mixed with 1 PHR of zinc stearate was mixed with ethylene monovinyl acetate to a thickness of 0.4 mm by the calendering method under the same conditions as in Example 1. A polymer sheet was obtained.
このエチレン一酢酸ビニル共重合体シートを実施例１と
同じ条件下でウエルダ一加を施したところ、１０秒間、
２０秒間、３０秒間、いづれの加時間でも接合は不可能
であつた。上ハ実施例、及び比較例によつて得られた接
合シートの剥離強度は下表の通りである。When this ethylene monovinyl acetate copolymer sheet was subjected to welding under the same conditions as in Example 1,
Bonding was impossible at either 20 seconds or 30 seconds. The peel strengths of the bonded sheets obtained in the Examples and Comparative Examples above are shown in the table below.
剥 離 強 度 （Ｋ９／３ｃｍ巾）ウエルダ―
加工時間 １０秒 ２０秒 ３０秒実
１０米 １０米 １０米比 較 例 接合され
接合されず １米 不可 シート破壊）
測定方法：
３？×３Ｃ１ｒ１０）接合部分に３？巾の非接合部分を
残して採取した試験片を、引張試験機を用いてつかみ間
隔］５？、引張速度２００ｍｍ／Ｍｉｎで測も上表にお
いて明らかなごとく、本発明の方法を適用して得られる
熱可塑性樹脂シートのウエルダ一加工性（接合）の向上
はまことに顕著なものであつて、本発明がいかに有効な
ものであるかがわかる。Peeling strength (K9/3cm width) welder
Processing time 10 seconds 20 seconds 30 seconds actual
10 meters 10 meters 10 meters comparison example Joined Not joined 1 meter Not possible (Sheet destruction) Measurement method: 3? ×3C1r10) 3 on the joint part? Using a tensile tester, grab the test piece with the width of the unbonded part left open and hold it at an interval of 5? As is clear from the table above, the improvement in welding processability (joining) of thermoplastic resin sheets obtained by applying the method of the present invention is truly remarkable. You can see how effective inventions are.
Claims (1)
高周波による内部発熱性の悪い熱可塑性合成樹脂分に対
して、誘電率（ε）と誘電損失（ｔａｎδ）との積が０
．１以上の無機物質を５〜２００ＰＨＲ添加混練するこ
とによつて、高周波による内部発熱性を向上せしめた熱
可塑性合成樹脂の組成物からなるシートを接合素材とす
ることを特徴とするシートの誘電接合方法。1 Consisting of one type or a mixture of two or more types,
The product of dielectric constant (ε) and dielectric loss (tanδ) is 0 for thermoplastic synthetic resins that have poor internal heat generation properties due to high frequencies.
．． Dielectric bonding of sheets, characterized in that the bonding material is a sheet made of a thermoplastic synthetic resin composition whose internal heat generation properties due to high frequency waves have been improved by kneading and adding 5 to 200 PHR of one or more inorganic substances. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50144136A JPS5946774B2 (en) | 1975-12-03 | 1975-12-03 | Welder Kakousei no Kairiyousareta Netsukaso Seigou Seijyushi Sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50144136A JPS5946774B2 (en) | 1975-12-03 | 1975-12-03 | Welder Kakousei no Kairiyousareta Netsukaso Seigou Seijyushi Sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5268273A JPS5268273A (en) | 1977-06-06 |
| JPS5946774B2 true JPS5946774B2 (en) | 1984-11-14 |
Family
ID=15355044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50144136A Expired JPS5946774B2 (en) | 1975-12-03 | 1975-12-03 | Welder Kakousei no Kairiyousareta Netsukaso Seigou Seijyushi Sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5946774B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58185431U (en) * | 1982-06-04 | 1983-12-09 | セ−レン株式会社 | waterproof fabric |
| JPS58185430U (en) * | 1982-06-04 | 1983-12-09 | セ−レン株式会社 | Base fabric for interior |
| JPS58222123A (en) * | 1982-06-18 | 1983-12-23 | Yoshino Kogyosho Co Ltd | Synthetic resin sheet body |
| JPH04169230A (en) * | 1990-09-14 | 1992-06-17 | Sumitomo Chem Co Ltd | Waterproof sheet |
| US6706136B2 (en) | 2001-10-16 | 2004-03-16 | Toyo Boseki Kabushiki Kaisha | Resin composition for high-frequency bonding |
| CN109890923B (en) * | 2016-10-27 | 2022-05-17 | 琳得科株式会社 | Dielectric heating adhesive film, and bonding method using dielectric heating adhesive film |
| JPWO2018147351A1 (en) * | 2017-02-09 | 2019-11-07 | リンテック株式会社 | Dielectric heating adhesive film and bonding method using dielectric heating adhesive film |
-
1975
- 1975-12-03 JP JP50144136A patent/JPS5946774B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5268273A (en) | 1977-06-06 |
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