KR102351380B1 - 배리어성 적층 필름 - Google Patents
배리어성 적층 필름 Download PDFInfo
- Publication number
- KR102351380B1 KR102351380B1 KR1020197028710A KR20197028710A KR102351380B1 KR 102351380 B1 KR102351380 B1 KR 102351380B1 KR 1020197028710 A KR1020197028710 A KR 1020197028710A KR 20197028710 A KR20197028710 A KR 20197028710A KR 102351380 B1 KR102351380 B1 KR 102351380B1
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- KR
- South Korea
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- barrier
- layer
- barrier laminated
- laminated film
- less
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Abstract
Description
[도 1] 본 발명에 관련되는 실시형태의 배리어성 적층 필름의 구조의 일례를 모식적으로 나타낸 단면도이다.
Claims (14)
- 기재층과, 응력완화층과, 무기물층과, 배리어성 수지층을 이 순번으로 구비하는 배리어성 적층 필름으로서,
상기 배리어성 수지층이 폴리카복실산과 폴리아민과의 아마이드 가교물을 포함하고,
상기 응력완화층이 방향족환 구조를 주쇄에 가지는 폴리우레탄계 수지를 포함하고,
상기 폴리우레탄계 수지가 방향족 폴리에스터 골격을 포함하는 배리어성 적층 필름으로서,
상기 응력완화층의 적외선 흡수스펙트럼에 있어서, 흡수대 1705cm-1 이상 1735cm-1 이하의 범위에 있어서의 최대 피크 A1에 대한 흡수대 715cm-1 이상 745cm-1 이하의 범위에 있어서의 최대 피크 A0의 비(A0/A1)가 0.20 이상 0.90 이하인 배리어성 적층 필름. - 청구항 1에 기재된 배리어성 적층 필름에 있어서,
해당 배리어성 적층 필름을 130℃에서 30분간 레토르트 처리한 후의, 25℃, 인장속도 300mm/분의 조건에서 측정되는 상기 기재층과 상기 배리어성 수지층 사이의 180°박리강도 P가 0.5N/15mm 이상인 배리어성 적층 필름. - 청구항 1 또는 2에 기재된 배리어성 적층 필름에 있어서,
해당 배리어성 적층 필름을 130℃에서 30분간 레토르트 처리한 후의, 25℃, 인장속도 300mm/분의 조건에서 측정되는 상기 기재층과 상기 배리어성 수지층 사이의 180°박리강도를 P[N/15mm]라고 하고,
상기 응력완화층의 두께를 T[㎛]라고 했을 때,
P/T가 2.0 이상 15.0 이하인 배리어성 적층 필름. - 청구항 1 또는 2에 기재된 배리어성 적층 필름에 있어서,
상기 응력완화층의 두께가 0.05㎛ 이상 1.0㎛ 이하인 배리어성 적층 필름. - 청구항 1 또는 2에 기재된 배리어성 적층 필름에 있어서,
40℃, 90%RH에서의 수증기 투과도가 4.0g/(m2·24h) 이하인 배리어성 적층 필름. - 청구항 1 또는 2에 기재된 배리어성 적층 필름에 있어서,
20℃, 90%RH에서의 산소 투과도가 10.0ml/(m2·24h·MPa) 이하인 배리어성 적층 필름. - 삭제
- 삭제
- 청구항 1 또는 2에 기재된 배리어성 적층 필름에 있어서,
상기 무기물층이, 산화규소, 산화질화규소, 질화규소, 산화알루미늄 및 알루미늄으로 이루어지는 군으로부터 선택되는 1종 또는 2종 이상의 무기물을 포함하는 배리어성 적층 필름. - 청구항 1 또는 2에 기재된 배리어성 적층 필름에 있어서,
상기 배리어성 수지층의 적외선 흡수스펙트럼에 있어서,
흡수대 1493cm-1 이상 1780cm-1 이하의 범위에 있어서의 전피크 면적을 A라고 하고,
흡수대 1598cm-1 이상 1690cm-1 이하의 범위에 있어서의 전피크 면적을 B라고 했을 때,
B/A로 나타내는 아마이드 결합의 면적 비율이 0.370 이상인 배리어성 적층 필름. - 청구항 1 또는 2에 기재된 배리어성 적층 필름에 있어서,
해당 배리어성 적층 필름을 130℃에서 30분간 레토르트 처리한 후의, 40℃, 90%RH에서의 수증기 투과도가 4.0g/(m2·24h) 이하인 배리어성 적층 필름. - 청구항 1 또는 2에 기재된 배리어성 적층 필름에 있어서,
상기 배리어성 수지층의 두께가 0.01㎛ 이상 15㎛ 이하인 배리어성 적층 필름. - 청구항 1 또는 2에 기재된 배리어성 적층 필름에 있어서,
해당 배리어성 적층 필름을 130℃에서 30분간 레토르트 처리한 후의, 20℃, 90%RH에서의 산소 투과도가, 10.0ml/(m2·24h·MPa) 이하인 배리어성 적층 필름. - 청구항 1 또는 2에 기재된 배리어성 적층 필름에 있어서,
레토르트 식품용 포장재에 사용되는 배리어성 적층 필름.
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