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Porous film composites 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B32B-003/26
  • B32B-005/22
  • B32B-027/00
  • D04H-001/58
출원번호 US-0749215 (1991-08-23)
발명자 / 주소
  • Tapp William T. (Marietta GA)
출원인 / 주소
  • Amoco Corporation (Chicago IL 02)
인용정보 피인용 횟수 : 124  인용 특허 : 0

초록

A porous film composite comprising at least one layer of an oriented polymeric porous film comprising an ethylene-propylene block copolymer having an ethylene content of about 10 to about 50 wt %, a polypropylene homopolymer or random copolymer of propylene having up to about 10 wt % of a comonomer

대표청구항

A porous film composite comprising, at least one layer of an oriented microporous film having microvoid cells and interconnecting pores between the cells prepared by a process comprising the steps of: (1) forming a film from a polymeric composition comprising, about 30 to about 90 parts by weight of

이 특허를 인용한 특허 (124)

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