JP2021031632A - 粘着剤組成物及び粘着フィルム - Google Patents
粘着剤組成物及び粘着フィルム Download PDFInfo
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- JP2021031632A JP2021031632A JP2019155648A JP2019155648A JP2021031632A JP 2021031632 A JP2021031632 A JP 2021031632A JP 2019155648 A JP2019155648 A JP 2019155648A JP 2019155648 A JP2019155648 A JP 2019155648A JP 2021031632 A JP2021031632 A JP 2021031632A
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- acrylate
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- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
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- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
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- FUGYGGDSWSUORM-UHFFFAOYSA-N para-hydroxystyrene Natural products OC1=CC=C(C=C)C=C1 FUGYGGDSWSUORM-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
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- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000012719 thermal polymerization Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 1
- DQZNLOXENNXVAD-UHFFFAOYSA-N trimethoxy-[2-(7-oxabicyclo[4.1.0]heptan-4-yl)ethyl]silane Chemical compound C1C(CC[Si](OC)(OC)OC)CCC2OC21 DQZNLOXENNXVAD-UHFFFAOYSA-N 0.000 description 1
- YUYCVXFAYWRXLS-UHFFFAOYSA-N trimethoxysilane Chemical compound CO[SiH](OC)OC YUYCVXFAYWRXLS-UHFFFAOYSA-N 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/24—Homopolymers or copolymers of amides or imides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
Description
<アクリル樹脂(A)の合成>
攪拌機、還流冷却管、窒素導入管、温度計を備えた反応容器に、n−ブチルアクリレート200質量部、2−エチルヘキシルアクリレート277質量部、シクロヘキシルアクリレート400質量部、ダイアセトンアクリルアミド50質量部、アクリル酸70質量部、4−ヒドロキシブチルアクリレート3質量部、酢酸エチル1000質量部を仕込み、攪拌下、窒素を吹き込みながら70℃まで昇温した。1時間後に、予め酢酸エチルにて溶解した2,2’−アゾビス(2−メチルブチロニトリル)溶液10質量部(固形分5質量%)を添加した。その後、攪拌下70℃にて8時間ホールドした後、内容物を冷却し200メッシュ金網にて濾過し、不揮発分50質量%、粘度100,000mPa・s、重量平均分子量90万のアクリル樹脂(A1)を得た。
(メタ)アクリレートモノマー(a1)、窒素原子を有するモノマー(a2)、酸基を有するモノマー(a3)、水酸基を有するモノマー(a4)を表1〜3に示す通りに変更したこと以外は、合成例1と同様にして、アクリル樹脂(A2)〜(A7)、比較アクリル樹脂(A1’)を得た。
合成例1で得られたアクリル樹脂(A1)100質量部に対して、3−グリシドキシプロピルトリメトキシシラン0.003質量部とエポキシ系架橋剤(ファインタック硬化剤EX−50;DIC(株)製)0.1質量部を均一になるように攪拌混合することによってアクリル粘着組成物を得た。
合成例1で得られたアクリル樹脂(A1)を100質量部用いる代わりに、合成例2〜7、比較合成例1で得られたアクリル樹脂(A2)〜(A7)、比較アクリル樹脂(A1’)をそれぞれ100質量部用い、表1〜3に示す通りに変更した以外は、実施例1と同様にして、アクリル粘着組成物を得た。
表面に離型処理された厚さ50μmのポリエチレンテレフタレートフィルム(離型PET50)の表面に、溶剤乾燥後における膜厚が25μmとなるように後記実施例で得られたアクリル系粘着剤組成物を塗布し、80℃乾燥機中で3分間溶剤を揮発した後、PET50μmフィルムを貼り合せた。
前述の方法で作成した粘着フィルムを25mm幅に切ったものを試験片とした。被着体をガラス板とし、2kgロール×2往復で被着体に貼り付けた。貼り付け1時間後に23℃、50%RHの雰囲気下で180度剥離強度を測定し、接着力とした。
前述の方法で作成した粘着フィルムを25mm幅に切ったものを試験片とした。被着体をガラス板とし、2kgロール×2往復で被着体に貼り付けた。貼り付け1時間後に85℃85%RHの雰囲気下で250時間放置した。その後、23℃、50%RHの雰囲気下で1時間静置した後、前述の方法と同様に、180度剥離強度を測定し、耐湿熱接着力とした。
前述の方法で作成した粘着フィルムを25mm幅に切ったものを試験片とした。鏡面仕上げしたステンレス板に対し、接着面積が25mm×25mmとなるように2kgロール×2往復にて貼り付けた。このステンレス板に貼り付けた試験片に対し、70℃雰囲気下にて1kgの荷重を、ステンレス板に対して0°の方向(剪断方向)にかけ、粘着フィルムが被着体からずれ落ちるまでの時間を測定し、その保持時間を保持力とした。また、24時間後にも保持されていた場合には、保持時間を24時間以上とし、初期貼り付け位置からのずれ幅を測定し併記した。
前述の方法で作成した粘着フィルムをガラス板に貼り付けたものを試験片とした。その試験片を、光源C、視野2°、「分光測色計」CM−5000d(コニカミノルタセンシング(株)製)にて、JIS K 7105に準じて黄変度(b*)を測定した。
前述の方法で作成した粘着フィルムをガラス板に貼り付けたものを試験片とした。その試験片を、濁度計「NDH5000」(日本電色工業(株)製)にて、JIS K 7361−1に準じてヘイズ、光線透過率を測定した。
前述の方法で作成した粘着フィルムをガラス板に貼り付け、85℃×85%RH雰囲気下に250時間、及び500時間放置した。その後、もう一枚の離型PET50を剥離し、前述の方法と同様に、JIS K 7105に準じて黄変度(b*)測定した。
Claims (6)
- アクリル重合体(A)、架橋剤(B)及びシランカップリング剤(C)を含むものであり、
前記アクリル重合体(A)が、(メタ)アクリレートモノマー(a1)に由来する単位と;窒素原子を有するモノマー(a2)に由来する単位と;酸基を有するモノマー(a3)及び水酸基を有するモノマー(a4)からなる群より選ばれる少なくとも1種に由来する単位とを含むものであり、
前記シランカップリング剤(C)が、前記アクリル重合体(A)と反応しうる基を有するものである粘着剤組成物。 - 前記窒素原子を有するモノマー(a2)が、(メタ)アクリルアミドモノマーである請求項1記載の粘着剤組成物。
- 前記シランカップリング剤(C)の含有量が、前期アクリル重合体(A)100質量部に対して、0.0005質量部以上0.5質量部以下である請求項1又は2記載の粘着剤組成物。
- さらに溶剤(D)を含むものである請求項1〜3のいずれか1項記載の粘着剤組成物。
- 請求項1〜4のいずれか1項項記載の粘着剤組成物から形成される粘着層。
- 請求項5記載の粘着層を有する粘着フィルム。
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CN202010812021.9A CN112442324A (zh) | 2019-08-28 | 2020-08-13 | 粘合剂组合物、粘合层及粘合膜 |
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