KR101600654B1 - 편광판용 점착 필름, 이를 위한 점착제 조성물, 이를 포함하는 편광판 및 이를 포함하는 광학표시장치 - Google Patents
편광판용 점착 필름, 이를 위한 점착제 조성물, 이를 포함하는 편광판 및 이를 포함하는 광학표시장치 Download PDFInfo
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- KR101600654B1 KR101600654B1 KR1020120157622A KR20120157622A KR101600654B1 KR 101600654 B1 KR101600654 B1 KR 101600654B1 KR 1020120157622 A KR1020120157622 A KR 1020120157622A KR 20120157622 A KR20120157622 A KR 20120157622A KR 101600654 B1 KR101600654 B1 KR 101600654B1
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- polarizing plate
- sensitive adhesive
- pressure
- meth
- film
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Abstract
Description
도 2는 본 발명 일 구체예의 광학표시장치의 단면도이다.
제조예1 | 제조예2 | 제조예3 | 제조예5 | 제조예4 | 제조예6 | ||
단량체 | BA | 82 | 77 | 67 | 92 | 94 | 97 |
ACMO | 15 | 20 | 30 | 5 | 3 | 0 | |
AA | 2 | 2 | 2 | 2 | 2 | 2 | |
HEMA | 1 | 1 | 1 | 1 | 1 | 1 | |
점도(25℃, cps) | 6,100 | 6,100 | 6,100 | 5,500 | 5,500 | 4,500 | |
고형분(중량%) | 26.1 | 25.4 | 25.5 | 20.6 | 24.6 | 21.5 | |
분자량(Mw, g/mol) | 85만 | 85만 | 85만 | 100만 | 100만 | 80만 |
실시예1 | 실시예2 | 실시예3 | 비교예 1 | 비교예 2 | 비교예 3 | ||
(A) | 제조예1 | 100 | - | - | - | - | - |
제조예2 | - | 100 | - | - | - | - | |
제조예3 | - | - | 100 | - | - | - | |
제조예4 | - | - | - | 100 | - | - | |
제조예5 | - | - | - | - | 100 | - | |
제조예6 | - | - | - | - | - | 100 | |
(B) | (B1) | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 | 1.2 |
(B2) | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | |
(C) | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 |
실시예 1 | 실시예 2 | 실시예 3 | 비교예 1 | 비교예 2 | 비교예 3 | ||
점착제 크리프(㎛) | 200±10 | 160±10 | 140±10 | 210±10 | 200±10 | 210±10 | |
박리강도(gf/25mm) | 550 | 700 | 900 | 200 | 450 | 180 | |
내구신뢰성 | 내열 (85℃) |
○ | ○ | ○ | × | △ | × |
내습열 (60℃, 95%RH) |
○ | ○ | ○ | × | ○ | × | |
저장탄성율 (85℃,G', kPa) |
30 | 31 | 31 | 28 | 29 | 28 | |
코팅액 외관 | 투명 | 투명 | 투명 | 투명 | 투명 | 투명 |
Claims (19)
- 지환족 헤테로고리를 갖는 모노머 15-35중량%, 알킬기를 갖는 (메타)아크릴계 단량체 60-84중량%, 수산기를 갖는 (메타)아크릴계 단량체 0.5-5중량%, 카르복시산기를 갖는 비닐계 단량체 0.1-3중량%를 포함하는 단량체 혼합물의 (메타)아크릴계 공중합체를 포함하는 편광판용 점착필름이고,
상기 편광판용 점착필름은 85℃ 및 10-3 - 102rad/s의 각속도로 진동하는 프리퀀시 스윕 테스트(frequency sweep test)하였을 때 저장 탄성율(storage modulus, G')이 30kPa 이상이고,
상기 편광판용 점착필름은 유리 기판에 대한 박리강도가 550gf/25mm 내지 1000gf/25mm인 것인, 편광판용 점착필름.
- 삭제
- 제1항에 있어서, 상기 지환족 헤테로고리를 갖는 모노머는 모르폴린기를 포함하는 편광판용 점착필름.
- 제1항에 있어서, 상기 지환족 헤테로고리를 갖는 모노머는 탄소수 4-10의 지환족 헤테로고리를 갖는 (메타)아크릴계 단량체를 포함하는 편광판용 점착필름.
- 삭제
- 제1항에 있어서, 상기 (메타)아크릴계 공중합체의 중량평균분자량은 150만g/mol 이하인 편광판용 점착필름.
- 제1항에 있어서, 상기 점착필름의 두께는 1㎛-15㎛인 편광판용 점착필름.
- 제1항에 있어서, 상기 점착필름은 상기 (메타)아크릴계 공중합체와 가교제를 포함하는 조성물의 경화물을 포함하는 편광판용 점착필름.
- 제8항에 있어서, 상기 가교제는 이소시아네이트계 가교제와 에폭시계 가교제의 혼합물을 포함하는 편광판용 점착필름.
- 제8항에 있어서, 상기 조성물은 에폭시 구조를 갖는 실란커플링제를 더 포함하는 편광판용 점착필름.
- 지환족 헤테로고리를 갖는 (메타)아크릴계 단량체 15-35중량%, 알킬기를 갖는 (메타)아크릴계 단량체 60-84중량%, 수산기를 갖는 (메타)아크릴계 단량체 0.5-5중량%, 카르복시산기를 갖는 비닐계 단량체 0.1-3중량%를 포함하는 단량체 혼합물의 (메타)아크릴계 공중합체, 및 가교제를 포함하는 편광판용 점착제 조성물이고,
상기 편광판용 점착제 조성물로 형성된 점착 필름은 85℃ 및 10-3 - 102rad/s의 각속도로 진동하는 프리퀀시 스윕 테스트(frequency sweep test)하였을 때 저장 탄성율(storage modulus, G')이 30kPa 이상이고,
상기 편광판용 점착제 조성물로 형성된 점착 필름은 유리 기판에 대한 박리강도가 550gf/25mm 내지 1000gf/25mm인 것인, 편광판용 점착제 조성물.
- 삭제
- 제11항에 있어서, 상기 지환족 헤테로고리를 갖는 (메타)아크릴계 단량체는 탄소수 4-10의 지환족 헤테로고리를 갖는 (메타)아크릴계 단량체를 포함하는 편광판용 점착제 조성물.
- 제11항에 있어서, 상기 가교제는 이소시아네이트계 가교제와 에폭시계 가교제의 혼합물을 포함하는 편광판용 점착제 조성물.
- 제11항에 있어서, 상기 조성물은 에폭시 구조를 갖는 실란커플링제를 더 포함하는 편광판용 점착제 조성물.
- 위상차필름, 제1점착층, 제2보호필름, 편광자, 및 제1보호필름이 순차적으로 적층되고, 상기 제1점착층은 제1항, 제3항, 제4항, 제6항, 제7항, 제8항, 제9항, 제10항 중 어느 한 항의 편광판용 점착필름을 포함하는 편광판.
- 제16항에 있어서, 상기 위상차필름은 포화 흡수율이 1% 이하인 필름을 포함하는 편광판.
- 제16항에 있어서, 상기 편광판은 상기 위상차필름의 일면에 제2점착층을 더 포함하는 편광판.
- 제16항의 편광판을 포함하는 광학표시장치.
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JP2011099073A (ja) | 2009-11-09 | 2011-05-19 | Nitto Denko Corp | 光学用粘着シート |
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CN103911081A (zh) | 2014-07-09 |
KR20140086750A (ko) | 2014-07-08 |
US9765244B2 (en) | 2017-09-19 |
US20140186605A1 (en) | 2014-07-03 |
CN103911081B (zh) | 2016-06-01 |
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