JPS63120641A - Mold release film and manufacture thereof - Google Patents
Mold release film and manufacture thereofInfo
- Publication number
- JPS63120641A JPS63120641A JP26560286A JP26560286A JPS63120641A JP S63120641 A JPS63120641 A JP S63120641A JP 26560286 A JP26560286 A JP 26560286A JP 26560286 A JP26560286 A JP 26560286A JP S63120641 A JPS63120641 A JP S63120641A
- Authority
- JP
- Japan
- Prior art keywords
- film
- release film
- polydimethylsiloxane
- terminal hydroxyl
- isocyanate compound
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- -1 silane isocyanate compound Chemical class 0.000 claims description 35
- 229920006267 polyester film Polymers 0.000 claims description 19
- 229910000077 silane Inorganic materials 0.000 claims description 15
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 14
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 14
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 13
- 239000012948 isocyanate Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 5
- PJXBOHHGXMVENU-UHFFFAOYSA-N C[SiH3].N=C=O.N=C=O.N=C=O Chemical compound C[SiH3].N=C=O.N=C=O.N=C=O PJXBOHHGXMVENU-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 11
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000001723 curing Methods 0.000 description 5
- 230000037303 wrinkles Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- QOZVPNFFOMWHRW-UHFFFAOYSA-N CCO[SiH3].N=C=O.N=C=O.N=C=O Chemical compound CCO[SiH3].N=C=O.N=C=O.N=C=O QOZVPNFFOMWHRW-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- IDCBOTIENDVCBQ-UHFFFAOYSA-N TEPP Chemical compound CCOP(=O)(OCC)OP(=O)(OCC)OCC IDCBOTIENDVCBQ-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013006 addition curing Methods 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007756 gravure coating Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 125000005373 siloxane group Chemical group [SiH2](O*)* 0.000 description 1
- DAJSVUQLFFJUSX-UHFFFAOYSA-M sodium;dodecane-1-sulfonate Chemical compound [Na+].CCCCCCCCCCCCS([O-])(=O)=O DAJSVUQLFFJUSX-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229920006337 unsaturated polyester resin 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0067—Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other
- B29C37/0075—Using separating agents during or after moulding; Applying separating agents on preforms or articles, e.g. to prevent sticking to each other using release sheets
Landscapes
- Laminated Bodies (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は雛形フィルム及びその製造法に関し、更に詳し
くは熱変形の少ない、耐久性及び離形性に優れた、透明
な離形フィルム及びその製造法に −関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a template film and a method for producing the same, and more specifically, a transparent release film with little thermal deformation, excellent durability and release properties, and a method for producing the same. - related to.
従来技術
雛形フィルムは、粘着剤、接着剤等よりなる粘着面を保
護する目的、或は硬化性樹脂例えばウレタン樹脂、エポ
キシ樹脂、不飽和ポリエステル樹脂等の硬化反応性、成
形性を保護する目的等で用いられ、その量を拡大しつつ
ある。 ′かかる離形フィルムとして、従来から、
ポリエステルフィルムの少なくとも一表面にビニルシロ
キサン基を有するシリコンオイルの硬化物よりなる皮膜
を設けたのが用いられている。この硬化物は非粘着で離
形効果に優れ、また熱安定性に優れるという利点を有す
るが、一方ベースフイルムであるポリエステルフィルム
との密着性が十分とは言い難く耐久性が低い点、及び硬
化反応を１５０℃以上の高温で行う必要があることから
ベースフィルムが熱変形し、離形フィルムに皺特に縦皺
がはいるという欠点がある。この皺は広幅の離形フィル
ムでは重大な欠点となることがある。The purpose of the conventional pattern film is to protect the adhesive surface made of adhesives, adhesives, etc., or to protect the curing reactivity and moldability of curable resins such as urethane resins, epoxy resins, and unsaturated polyester resins. It is used in many countries, and the amount is being expanded. 'As such a release film, conventionally,
A film made of a cured silicone oil having a vinyl siloxane group is provided on at least one surface of a polyester film. This cured product has the advantage of being non-adhesive, has an excellent mold release effect, and has excellent thermal stability, but on the other hand, the adhesion to the polyester film that is the base film is not sufficient, resulting in low durability. Since the reaction needs to be carried out at a high temperature of 150° C. or higher, the base film is thermally deformed and the release film has wrinkles, particularly vertical wrinkles. These wrinkles can be a serious drawback in wide release films.
発明の目的
本発明の目的は、かかる点を改善し、熱変形が小さく、
耐久性及び離形性に優れた、透明な離形フィルムを提供
することにある。OBJECT OF THE INVENTION The object of the present invention is to improve the above points, and to reduce thermal deformation.
An object of the present invention is to provide a transparent release film having excellent durability and release properties.
本発明の別の目的は、上記離形フィルムの製造法を提供
することにある。Another object of the present invention is to provide a method for producing the above-mentioned release film.
発明の構成・効果
本発明のかかる目的は、本発明によれば、１、 ポリエ
ステルフィルムの少なくとも一表面にシランイソシアネ
ート化合物と末端水酸基を有するポリジメチルシロキサ
ンの硬化物層を設けてなる離形フィルム、並びに
２、 ポリエステルフィルムの少なくとも一表面に、シ
ランイソシアネート化合物と末端水酸基を有するポリジ
メチルシロキサンの混合物を塗布し、１３０℃以下の温
度で硬化させて硬化物層を形成することを特徴とする離
形フィルムの製造法
によって達成される。Structure and Effects of the Invention According to the present invention, the objects of the present invention are as follows: 1. A release film comprising a cured layer of polydimethylsiloxane having a silane isocyanate compound and a terminal hydroxyl group on at least one surface of a polyester film; and 2. Mold release characterized by applying a mixture of a silane isocyanate compound and a polydimethylsiloxane having a terminal hydroxyl group to at least one surface of the polyester film and curing the mixture at a temperature of 130° C. or lower to form a cured product layer. This is achieved by a film manufacturing method.
本発明におけるポリエステルは、芳香族二塩基酸又はそ
のエステル形成性誘導体とジオール又はそのエステル形
成性誘導体とから製造される結晶性の線状飽和ポリエス
テルであり、具体的には、ポリエチレンテレフタレート
、ポリプロピレンテレフタレート、ポリブチレンテレフ
タレート、ポリエチレン−２，６−ナフタレートなどが
好ましく例示される。また、これらの一部が他成分に置
換された共重合体や、ポリアルキレングリコール或は他
の樹脂との混合体であっても良い。The polyester in the present invention is a crystalline linear saturated polyester produced from an aromatic dibasic acid or its ester-forming derivative and a diol or its ester-forming derivative, and specifically, polyethylene terephthalate, polypropylene terephthalate, etc. Preferred examples include polybutylene terephthalate, polyethylene-2,6-naphthalate, and the like. Further, a copolymer in which some of these components are substituted with other components, a mixture with polyalkylene glycol or other resins may be used.
本発明におけるポリエステルフィルムは、従来から知ら
れている方法で製造できる。例えば、上記ポリエステル
を乾燥後溶融し、ダイ（例えばＴダイ、■ダイ等）から
冷却ドラム上に押出し急冷して未延伸フィルムとし、該
未延伸フィルムを二輪方向に延伸し、更に熱固定するこ
とによって製造することができる。フィルムの厚みは、
特に制限がないが、１２〜２５０μｍが好ましい。ポリ
エステルフィルムとしては滑剤を含まないフィルムが表
面平坦性の点で好ましいが、表面粗さ制御のため滑剤、
例えば炭酸カルシウム、カオリン、シリカ、酸化チタン
等の如き無機微粒子及び／又は触媒残渣の析出微粒子等
を含有させたフィルムであっても良く、またドデシルス
ルホン酸ソーダの如き帯電防止剤９色調調整剤等の如き
他の添加剤を含有させたフィルムであっても良い。The polyester film in the present invention can be manufactured by a conventionally known method. For example, the above-mentioned polyester is dried and then melted, extruded from a die (for example, T die, ■ die, etc.) onto a cooling drum, rapidly cooled to form an unstretched film, and the unstretched film is stretched in the direction of the two wheels and further heat-set. It can be manufactured by The thickness of the film is
Although there is no particular limitation, 12 to 250 μm is preferable. As a polyester film, a film that does not contain a lubricant is preferable in terms of surface flatness, but a lubricant or a lubricant may be used to control surface roughness.
For example, it may be a film containing inorganic fine particles such as calcium carbonate, kaolin, silica, titanium oxide, etc. and/or precipitated fine particles of catalyst residue, an antistatic agent such as sodium dodecyl sulfonate, a color tone adjusting agent, etc. The film may also contain other additives such as.
本発明においてはポリエステルフィルムの少なくとも一
表面、すなわち片面または両面の上に、シランイソシア
ネート化合物と末端水酸基を有するポリジメチルシロキ
サンの混合物を塗工し、硬化させて皮膜を形成して離形
フィルムとする。このシランイソシアネート化合物は、
分子中に三３ｉ−ＮＧＯ結合を有するものであり、例え
ばＳｆ （ＮＧＯ）４ 、Ｒｎ Ｓｉ （ＮＧ
Ｏ）４ − ｎ 。In the present invention, a mixture of a silane isocyanate compound and a polydimethylsiloxane having a terminal hydroxyl group is coated on at least one surface of a polyester film, that is, on one or both sides, and is cured to form a film to form a release film. . This silane isocyanate compound is
It has a 33i-NGO bond in its molecule, such as Sf (NGO)4, RnSi (NG
O) 4-n.
（ＲＯ）ｎ Ｓｉ （ＮＧＯ＞４− ｎ １これらの
予備縮合体等があげられる。ここで、Ｒはメチル、エチ
ル、フェニル、ビニル等の如き炭化水素基であり、ｎは
１．２又は３である。更に具体的にはメチルシラントリ
イソシアネート、エトキシシラントリイソシアネート、
シランテトライソシアネート等が好ましくあげられる。(RO)nSi (NGO>4-n1 These precondensates, etc. are mentioned. Here, R is a hydrocarbon group such as methyl, ethyl, phenyl, vinyl, etc., and n is 1.2 or 3. More specifically, methylsilane triisocyanate, ethoxysilane triisocyanate,
Preferred examples include silane tetraisocyanate.
更に、上記シランイソシアネート化合物は、上記化合物
と無水硅酸やポリシロキサン化合物とを縮合し、分子内
にシラン元素（Ｓｉ）に２個以上のイソシアネート基（
−ＮＣＯ＞が結合した化合物も包含する。シランイソシ
アネート化合物は１種でも良く、また２種以上を用いて
も良い。これらのうちメチルシラントリイソシアネート
が特に好ましい。Furthermore, the above-mentioned silane isocyanate compound is obtained by condensing the above-mentioned compound with silicic anhydride or a polysiloxane compound to form a silane element (Si) with two or more isocyanate groups (
-NCO> is also included. One type of silane isocyanate compound may be used, or two or more types may be used. Among these, methylsilane triisocyanate is particularly preferred.
更に、末端水酸基を有するポリジメチルシロキサンとし
ては、水酸基を２個有するもの、いわゆるシリコンジオ
ールが特に好ましい。このものの重合度は１０以上、更
には２０〜４０が好ましい。Furthermore, as the polydimethylsiloxane having a terminal hydroxyl group, one having two hydroxyl groups, so-called silicon diol, is particularly preferable. The degree of polymerization of this material is preferably 10 or more, more preferably 20 to 40.
本発明においては、ポリエステルフィルムと離形性皮膜
との密着性を高めるため、シランイソシアネート化合物
に末端水酸基を有するポリジメチルシロキサンを混合し
て塗液を調製する。該塗液は溶媒としてｎ−ヘキサン、
トルエン、メチルエチルケトン、酢酸エチル等が好まし
く用いられる。In the present invention, in order to improve the adhesion between the polyester film and the release film, a coating liquid is prepared by mixing polydimethylsiloxane having a terminal hydroxyl group with a silane isocyanate compound. The coating liquid uses n-hexane as a solvent,
Toluene, methyl ethyl ketone, ethyl acetate and the like are preferably used.
末端水酸基を有するポリジメチルシロキサンの割合は、
シランイソシアネート化合物との総量に対し、５〜３０
重思％が好ましい。末端水酸基を有するポリジメチルシ
ロキサンの割合が大きすぎると、皮膜のポリエステルフ
ィルムへの密着性が低下するようになり、好ましくない
。塗液の塗布法としては、例えばスピンナーコート法、
スプレーコート法、バーコード法、グラビアコート法、
リバースコート法等の各種の塗布方法が用いられる。The proportion of polydimethylsiloxane having terminal hydroxyl groups is
5 to 30 with respect to the total amount of silane isocyanate compound
Weight percentage is preferred. If the proportion of polydimethylsiloxane having terminal hydroxyl groups is too large, the adhesion of the film to the polyester film will decrease, which is not preferable. Examples of methods for applying the coating liquid include spinner coating,
Spray coating method, barcode method, gravure coating method,
Various coating methods such as reverse coating are used.
シランイソシアネート化合物と末端水酸基を有するポリ
ジメチルシロキサンとは低温反応性にすぐれ、例えば特
別な触媒を用いなくても空気中の水分やポリエステルフ
ィルム表面に付着している水分等で容易に反応が進み、
また１３０℃以下殊に１００〜１３０℃の温度で反応が
十分に進み、硬化物を形成する。この硬化物からなる皮
膜はポリエステルフィルムへの密着性にすぐれ、かつ離
形性層として優れた作用を奏する。更に、上記硬化反応
が低温で進行することからポリエステルフィルムが熱変
形せず、得られる離形フィルムには皺特に縦皺が発生し
てなく、広幅の離形フィルムとして特に有用である。Silane isocyanate compounds and polydimethylsiloxanes having terminal hydroxyl groups have excellent low-temperature reactivity, and for example, the reaction proceeds easily with moisture in the air or moisture attached to the surface of a polyester film, without using a special catalyst.
Further, the reaction proceeds sufficiently at a temperature of 130° C. or lower, particularly 100 to 130° C., to form a cured product. A film made of this cured product has excellent adhesion to the polyester film and also functions as a release layer. Furthermore, since the curing reaction proceeds at a low temperature, the polyester film is not thermally deformed, and the resulting release film is free of wrinkles, particularly vertical wrinkles, and is particularly useful as a wide release film.
また、滑剤を含有してないポリエステルのフィルムをベ
ースフィルムとすると、表面平坦性の優れた離形フィル
ムとなり、該離形フィルムは特に複合ガラス板の製造に
有用である。Furthermore, when a polyester film containing no lubricant is used as the base film, a release film with excellent surface flatness can be obtained, and the release film is particularly useful for manufacturing composite glass plates.
実施例
以下、実施例を掲げて本発明を更に詳細に説明する。な
お、離形フィルムの各種特性の測定は、下記の方法によ
って行った。EXAMPLES Hereinafter, the present invention will be explained in more detail with reference to Examples. Note that various properties of the release film were measured by the following methods.
（１）背面移行性
コーテイング面にポリエステルフィルムを重ね合わせ、
一定荷重をかけた後、コーテイング面に接したポリエス
テルフィルム面にマジックインクでラインを引き、“は
じき“の程度を見る。(1) Layer a polyester film on the back migration coating surface,
After applying a certain load, draw a line with magic ink on the surface of the polyester film that is in contact with the coating surface, and check the degree of "repellency".
（２ラブオフ
コーテイング面を指先で数回摩擦し、皮膜の脱落、密着
性を見る。(2) Rub the coated surface several times with your fingertips to check whether the film comes off or the adhesion.
（３）離形性
コーテイング面に２４ａｍ巾セロテープをゴムロールに
て圧着し、インストロン型引張試験機にて１８０°方向
に剥離し、この時の抵抗値（Ｊ／２４ｍ１＋）をもって
表示する。(3) Release property A 24-am wide cellophane tape is crimped onto the coated surface using a rubber roll and peeled off in a 180° direction using an Instron type tensile tester, and the resistance value (J/24m1+) at this time is indicated.
（４）耐摩耗性
コーテイング面を綿布で約５０回摩擦した後、セロテー
プにて剥離し、この時の抵抗値をもって示す。(4) Abrasion resistance After rubbing the coated surface approximately 50 times with a cotton cloth, it was peeled off with cellophane tape, and the resistance value at this time is shown.
比較例１
ポリジメチルシロキサンとメチルハイドＯゲンボリシロ
キサンの混合液に白金触媒を加えて付加反応させ、硬化
させるタイプの信越化学■商品名ＫＳ−７７２を、トル
エンに溶解させ固形分濃度５％の溶液を作った。Comparative Example 1 Shin-Etsu Chemical's brand name KS-772, which is a type of product in which a platinum catalyst is added to a mixed solution of polydimethylsiloxane and methylhydride polysiloxane to cause an addition reaction and cure, is dissolved in toluene to give a solid content concentration of 5%. I made a solution.
この塗液をポリエステルフィルム（帝人■商品名“テト
ロンフィルム３−１００”）に塗布１１０ｇ／尻でコー
ティングし、１２０℃、滞留時間１分間で乾燥及び硬化
反応を行ない、離形フィルムを作った。This coating solution was coated on a polyester film (Teijin ■ trade name "Tetron Film 3-100") at an amount of 110 g/bottom, and a drying and curing reaction was carried out at 120 DEG C. for a residence time of 1 minute to prepare a release film.
この離形フィルムの品質は表−１に示す。The quality of this release film is shown in Table-1.
比較例２及び実施例１〜４
メチルシラントリイソシアネート（松本製薬工業■商品
名“オルガチックス５ｔ−３００”）にシリコンジオー
ル（末端水酸基を有するポリジメチルシロキサン：信越
化学■商品名゛ＫＰＸ−４００”）を表−１の割合で混
合し、固形分濃度が５％になるまで酢酸エチルで希釈し
、コーティング塗液を調製した。Comparative Example 2 and Examples 1 to 4 Methylsilane triisocyanate (Matsumoto Pharmaceutical Co., Ltd., trade name "Orgatics 5t-300") and silicon diol (polydimethylsiloxane having a terminal hydroxyl group: Shin-Etsu Chemical, trade name "KPX-400") ) were mixed in the proportions shown in Table 1 and diluted with ethyl acetate until the solid content concentration was 5% to prepare a coating liquid.
この塗液をポリエステルフィルム（余人■商品名゛′テ
トロンフィルムＳ−１００”）に塗布量が１０９／ｍに
なるようにコーティングし、１２０℃、滞留時間１分間
で乾燥及び硬化反応を行ない離形フィルムを作った。こ
の離形フィルムの品質は表−１に示す。This coating solution was coated on a polyester film (trade name: ``Tetron Film S-100'') so that the coating amount was 109/m, and a drying and curing reaction was carried out at 120°C for a residence time of 1 minute, and the mold was released. A film was made. The quality of this release film is shown in Table 1.
Claims (1)
イソシアネート化合物と末端水酸基を有するポリジメチ
ルシロキサンの硬化物層を設けてなる離形フィルム。 ２、ポリエステルフィルムの少なくとも一表面に、シラ
ンイソシアネート化合物と末端水酸基を有するポリジメ
チルシロキサンの混合物を塗布し、１３０℃以下の温度
で硬化させて硬化物層を形成することを特徴とする離形
フィルムの製造法。 ３、シランイソシアネート化合物がメチルシラントリイ
ソシアネートであり、末端水酸基を有するポリジメチル
シロキサンがシリコンジオールである特許請求の範囲第
２項記載の製造法。 ４、末端水酸基を有するポリジメチルシロキサンの量比
が、シランイソシアネート化合物との総量に対し、５〜
３０重量％である特許請求の範囲第２項または第３項記
載の製造法。[Scope of Claims] 1. A release film comprising a cured layer of a silane isocyanate compound and polydimethylsiloxane having a terminal hydroxyl group on at least one surface of a polyester film. 2. A release film characterized in that a mixture of a silane isocyanate compound and a polydimethylsiloxane having a terminal hydroxyl group is applied to at least one surface of a polyester film and cured at a temperature of 130° C. or lower to form a cured product layer. manufacturing method. 3. The manufacturing method according to claim 2, wherein the silane isocyanate compound is methylsilane triisocyanate, and the polydimethylsiloxane having a terminal hydroxyl group is silicon diol. 4. The amount ratio of polydimethylsiloxane having a terminal hydroxyl group is 5 to 5 to the total amount of silane isocyanate compound.
30% by weight of the manufacturing method according to claim 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26560286A JPS63120641A (en) | 1986-11-10 | 1986-11-10 | Mold release film and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26560286A JPS63120641A (en) | 1986-11-10 | 1986-11-10 | Mold release film and manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63120641A true JPS63120641A (en) | 1988-05-25 |
| JPH0413146B2 JPH0413146B2 (en) | 1992-03-06 |
Family
ID=17419408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26560286A Granted JPS63120641A (en) | 1986-11-10 | 1986-11-10 | Mold release film and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63120641A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01306434A (en) * | 1988-06-03 | 1989-12-11 | Teijin Ltd | Mold releasing film and production thereof |
| EP0416765A2 (en) * | 1989-09-04 | 1991-03-13 | Imperial Chemical Industries Plc | Release film |
| JPH03125043U (en) * | 1990-03-28 | 1991-12-18 |
-
1986
- 1986-11-10 JP JP26560286A patent/JPS63120641A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01306434A (en) * | 1988-06-03 | 1989-12-11 | Teijin Ltd | Mold releasing film and production thereof |
| EP0416765A2 (en) * | 1989-09-04 | 1991-03-13 | Imperial Chemical Industries Plc | Release film |
| US5756214A (en) * | 1989-09-04 | 1998-05-26 | Imperial Chemical Industries Plc | Release film comprising polycarbonate-silicone-urethane resin |
| JPH03125043U (en) * | 1990-03-28 | 1991-12-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0413146B2 (en) | 1992-03-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |