KR102701756B1 - 방오 성능 및 발수 성능을 갖는 적층 필름 - Google Patents
방오 성능 및 발수 성능을 갖는 적층 필름 Download PDFInfo
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- C09J7/00—Adhesives in the form of films or foils
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- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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Abstract
Description
도 2는 본 발명의 또 다른 실시예에 따른 적층 필름의 수직 단면 모식도이다.
구분 | 외관 | 자가복원성 | 슬립성 | 발수성 | 방오성 | ||
(육안관찰) | (스크래치 복원 테스트) | (동마찰계수 측정) | (접촉각 측정-마모테스트 전후 비교) (단위: ˚) |
(유성펜 닦임 테스트-마모테스트 전후 비교) | |||
마모 테스트 전 | 마모 테스트 후 | 마모 테스트 전 | 마모 테스트 후 | ||||
비교예1 | 양호 | 즉시 복원 | 0.21 | 99 | - | ○ | - |
실시예1 | 양호 | 즉시 복원 | 0.12 | 110 | 105 | ◎ | ◎ |
실시예2 | 양호 | 즉시 복원 | 0.10 | 114 | 109 | ◎ | ◎ |
실시예3 | 양호 | 즉시 복원 | 0.10 | 114 | 109 | ◎ | ◎ |
실시예4 | 양호 | 즉시 복원 | 0.11 | 107 | 102 | ◎ | ○ |
실시예5 | 양호 | 즉시 복원 | 0.13 | 105 | 101 | ◎ | ○ |
실시예6 | 양호 | 즉시 복원 | 0.14 | 105 | 100 | ◎ | ○ |
비교예2 | 양호 | 즉시 복원 | 0.19 | 98 | - | ○ | - |
비교예3 | 양호 | 복원 속도 느림 | 0.22 | 95 | - | △ | - |
실시예7 | 양호 | 즉시 복원 | 0.13 | 110 | 105 | ◎ | ◎ |
비교예4 | 양호 | 즉시 복원 | 0.12 | 112 | 97 | ◎ | △ |
비교예5 | 양호 | 즉시 복원 | 0.13 | 108 | 95 | ◎ | △ |
비교예6 | 양호 | 복원 속도 느림 | 0.12 | 112 | 100 | ◎ | ○ |
비교예7 | 양호 | 복원 안됨 | 0.13 | 110 | 98 | ◎ | △ |
비교예8 | 양호 | 복원 속도 느림 | - | - | - | - | - |
비교예9 | 양호 | 복원 안됨 | - | - | - | - | - |
비교예10 | 양호 | 복원 속도 느림 | - | - | - | - | - |
비교예11 | 자가복원층코팅면굴곡 현상 | 즉시 복원 | - | - | - | - | - |
비교예12 | 양호 | (자가복원층 없음) | 0.12 | 110 | 87 | ◎ | X |
비교예13 | 양호 | (자가복원층 없음) | 0.16 | 103 | 75 | ◎ | X |
20: 오염 방지 코팅층
30: 탄성 기재층
40: 점착층
50: 이형필름층
60: 상면 점착 보호필름층
Claims (5)
- 우레탄 수지를 포함하는 자가복원층; 상기 자가복원층의 상부에 위치하는 오염 방지 코팅층; 상기 자가복원층의 하부에 위치하는 탄성 기재층; 상기 탄성 기재층의 하부에 위치하는 점착층을 포함하고,
상기 오염 방지 코팅층은 우레탄 결합을 갖는 발수 화합물을 포함하고,
상기 오염 방지 코팅층의 두께는, 1 내지 100 nm(나노미터)이며,
상기 우레탄 결합을 갖는 발수 화합물은 다음 화학식 1의 구조를 갖는, 적층 필름:
<화학식 1>
Y-[-HNO=CO-[X-(A)l-(B)m-X']-OC=ONH-]n-Y'
상기 A는 -(CF2CF2O)-이고, 상기 B는 -(CF2O)-이고,
상기 l, m은 각각 독립적으로 1 내지 50인 정수이고,
상기 l과 m의 합은 10 내지 100이며,
상기 n은 1 내지 10인 정수이고
상기 X, X'은 서로 동일하거나 상이하며, 각각 독립적으로, 불소화된 C1 내지 C5의 알콕시기, C1 내지 C3의 알킬로 1차 치환된 실란기, C1 내지 C3의 알킬로 2차 치환된 실란기에서 선택된 어느 하나이고,
상기 Y, Y'은 서로 동일하거나 상이하며, 각각 독립적으로, C1 내지 C3인 알킬로 1차 치환된 실란기, C1 내지 C3인 알킬로 2차 치환된 실란기, C1 내지 C3인 알킬로 3차 치환된 실란기에서 선택된 어느 하나이다.
- 삭제
- 제1항에 있어서,
상기 오염 방지 코팅층은 우레탄 결합을 갖는 발수 화합물 및 불소계 용매를 포함하고, 고형분 함량이 0.05 내지 1%인 발수 코팅액으로 형성된 것인 적층 필름.
- 제1항에 있어서,
상기 자가복원층은 폴리에스테르 프리폴리머 100 중량부, 폴리우레탄 프리폴리머를 30 내지 55 중량부를 혼합한 프리폴리머와 이소시아네이트 화합물 30 내지 60 중량부를 반응시켜 제조된 우레탄 수지를 포함하는, 적층 필름.
- 제1항에 있어서,
상기 점착층은 아크릴계 점착제 및/또는 실리콘계 점착제를 포함하고,
상기 점착층의 점착력은 50~1500gf/in인 적층 필름.
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