KR101378451B1 - 점착제 조성물의 제조 방법, 점착 필름의 제조 방법, 점착제용 원료 조성물 및 점착 필름 - Google Patents
점착제 조성물의 제조 방법, 점착 필름의 제조 방법, 점착제용 원료 조성물 및 점착 필름 Download PDFInfo
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- KR101378451B1 KR101378451B1 KR1020127009266A KR20127009266A KR101378451B1 KR 101378451 B1 KR101378451 B1 KR 101378451B1 KR 1020127009266 A KR1020127009266 A KR 1020127009266A KR 20127009266 A KR20127009266 A KR 20127009266A KR 101378451 B1 KR101378451 B1 KR 101378451B1
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Abstract
Description
도 1b는 본 발명의 점착제 조성물을 이용하여 형성된 점착제층을 갖는 트랜스퍼테이프의 일례를 모식적으로 나타내는 단면도이다.
도 2는 본 발명 점착 필름의 제조 방법의 일례를 모식적으로 나타내는 설명도이다.
도 3a는 실시예 6 및 비교예 2에 대하여 고온 고습 시험 오븐에서 꺼낸 직후부터 헤이즈값의 변화를 나타내는 그래프이다.
도 3b는 도 3a를 시간이 0~40 분인 범위에서 확대한 그래프이다.
Claims (6)
- (1) 에스테르기를 갖는 아크릴계 모노머 중 적어도 1 종류를 85~95 중량부와 카르복실기를 갖는 아크릴계 모노머 중 적어도 1 종류를 5~15 중량부 함유하는 모노머를 함유하는 혼합 용매액을 이용하여 중합된 주제 폴리머를 얻는 폴리머 제조 공정;
(2) 상기 주제 폴리머, 상기 주제 폴리머의 100 중량부에 대하여 히드록실기 함유 (메타)아크릴레이트 모노머 중 적어도 1 종류를 5~20중량부, 광중합 개시제, 및 폴리머의 가교점에 대하여 0.02 당량 이상 0.1 당량 이하가 되는 양의 2 관능성 가교제를 함유하는 점착제용 원료 조성물을 제조하는 공정;및
(3) 상기 점착제용 원료 조성물을 이용하여 광 조사에 의한 중합 반응 및 가교 반응을 시켜 점착제 조성물을 얻는 공정을 이들 공정의 순서대로 행하는 점착제 조성물의 제조 방법. - (1) 에스테르기를 갖는 아크릴계 모노머 중 적어도 1 종류를 85~95 중량부와 카르복실기를 갖는 아크릴계 모노머 중 적어도 1 종류를 5~15 중량부 함유하는 모노머를 함유하는 혼합 용매액을 이용하여 중합된 주제 폴리머를 얻는 폴리머 제조 공정;
(2) 상기 주제 폴리머, 상기 주제 폴리머의 100 중량부에 대하여 히드록실기 함유 (메타)아크릴레이트 모노머 중 적어도 1 종류를 5~20중량부, 광중합 개시제, 및 폴리머의 가교점에 대하여 0.02 당량 이상 0.1 당량 이하가 되는 양의 2 관능성 가교제를 함유하는 점착제용 원료 조성물을 제조하는 공정;
(3) 상기 점착제용 원료 조성물을 점착 필름의 기재 또는 세퍼레이터 상에 도포 및 건조하여 점착제 도포막을 형성하는 공정;및
(4) 상기 점착제 도포막에 광 조사에 의한 중합 반응 및 가교 반응을 시켜 점착제층을 얻는 공정을 이들 공정의 순서대로 행하는 점착 필름의 제조 방법. - (A) 에스테르기를 갖는 아크릴계 모노머 중 적어도 1 종류를 85~95 중량부와 카르복실기를 갖는 아크릴계 모노머 중 적어도 1 종류를 5~15 중량부 함유하는 모노머로부터 중합된 주제 폴리머:100 중량부;
(B) 히드록실기 함유 (메타)아크릴레이트 모노머 중 적어도 1 종류:5~20 중량부;
(C) 광중합 개시제:0.01~0.5 중량부;및
(D) 2 관능성 가교제를 폴리머의 가교점에 대하여 0.02 당량 이상 0.1 당량 이하가 되는 1.0~3.0 중량부 함유하고,
상기 주제 폴리머의 분자량 분포가 수평균 분자량(Mn)으로 7만 이상, 중량 평균 분자량(Mw)으로 100만 이상인 점착제용 원료 조성물. - 기재 또는 세퍼레이터, 및 점착제층을 포함하고,
당해 점착제층이 제 3 항의 점착제용 원료 조성물을 기재 또는 세퍼레이터 상에 도포한 후, 광 조사에 의해 중합 반응 및 가교 반응을 시켜 얻어지는 두께가 0.05~3mm인 점착 필름. - 제 4 항에 있어서,
상기 점착제층은 당해 점착면을 피착체에 접합하고 23℃, 50%RH 환경 하에 1시간 방치한 후, 박리 속도 300mm/min로 박리했을 때의 유리 및 아크릴 수지에 대한 점착력이 10N/25mm 이상이고, 상기 점착제층을 구성하는 점착제의 23℃, 1Hz에서의 저장 탄성률(G´)이 1×104 Pa 이상 1×106 Pa 미만인 점착 필름. - 제 4 항 또는 제 5 항에 있어서,
디스플레이에 부재를 접합시키는 용도의 점착 테이프인 점착 필름.
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