ADHESIVE COMPOSITION FOR PROTECTIVE FILM OF OPTICAL MEMBER AND PROTECTIVE FILM OF OPTICAL MEMBER
Provided are an adhesive composition for an optical member protection film, and an optical member protection film. The adhesive composition for the optical member protection film includes: a (meth)acryl-based polymer (A) having at least one of a hydroxyl group and a carboxyl group, and having a weig...
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Zusammenfassung: | Provided are an adhesive composition for an optical member protection film, and an optical member protection film. The adhesive composition for the optical member protection film includes: a (meth)acryl-based polymer (A) having at least one of a hydroxyl group and a carboxyl group, and having a weight average molecular weight of more than 200,000 and 2,000,000 or less; a (meth)acryl-based polymer (B) having at least one of a hydroxyl group and a carboxyl group, having a glass transition temperature of 0 ℃ to 45 ℃, and having a weight average molecular weight of 6,000 to 150,000; a (meth)acryl-based polymer (C) having a glass transition temperature of -30 ℃ or less, and having a weight average molecular weight of 6,000 to 150,000; and an isocyanate-based crosslinking agent (D), wherein a content of the (meth)acryl-based polymer (B) is 7 parts by weight to 70 parts by weight with respect to 100 parts by weight of the (meth)acryl-based polymer (A), and a content of the (meth)acryl-based polymer (C) is 0.5 parts by weight to 5 parts by weight with respect to 100 parts by weight of the (meth)acryl-based polymer (A).
수산기 및 카르복시기 중 적어도 한쪽을 가지며, 또한 중량 평균 분자량이 20만 초과 200만 이하의 범위인 (메타)아크릴계 중합체(A)와, 수산기 및 카르복시기 중 적어도 한쪽을 가지며, 유리 전이 온도가 0℃~45℃이고, 또한 중량 평균 분자량이 6000~15만인 (메타)아크릴계 중합체(B)와, 유리 전이 온도가 -30℃ 이하이며, 또한 중량 평균 분자량이 6000~15만인 (메타)아크릴계 중합체(C)와, 이소시아네이트계 가교제(D)를 포함하고, (메타)아크릴계 중합체(B)의 함유량이 (메타)아크릴계 중합체(A) 100질량부에 대해 7질량부~70질량부이며, (메타)아크릴계 중합체(C)의 함유량이 (메타)아크릴계 중합체(A) 100질량부에 대해 0.5질량부~5질량부인 광학 부재 보호 필름용 점착제 조성물 및 광학 부재 보호 필름. |
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