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특허 상세정보

Oxygen barrier oriented film

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B32B-027/08   
미국특허분류(USC) 428/339 ; 428/35 ; 428/349 ; 428/4758
출원번호 US-0776740 (1985-09-17)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 67  인용 특허 : 0
초록

A coextruded multiple layer oriented film comprises a core layer of a blend of ethylene vinyl alcohol copolymer and polyamide, two intermediate adhesive layers, and two outer layers of a blend of linear low density polyethylene, linear medium density polyethylene, and ethylene vinyl acetate copolymer. A preferred embodiment of the multilayer film exhibits excellent optics and shrink properties while providing high oxygen barrier especially useful in food packaging applications.

대표
청구항

An oriented multilayer film comprising: (a) a cross-linked core layer comprising a blend of an ethylene vinyl alcohol copolymer and a polyamide resin, said blend forming between about 5% and 25% of the total film thickness; (b) two cross-linked interior layers each comprising an adhesive resin; (c) two cross-linked outer layers each comprising a three-component blend of a linear low density polyethylene, a linear medium density polyethylene, and an ethylene vinyl acetate copolymer; and (d) said film having a total thickness ranging from about 0.75 to 1.5...

이 특허를 인용한 특허 피인용횟수: 67

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