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Breathable films prepared from melt embossed polyolefin/filler precursor films 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B32B-003/12
  • B32B-005/22
  • B29D-007/24
  • D02J-001/06
출원번호 US-0024503 (1987-03-11)
발명자 / 주소
  • Sheth Paresh J. (Sugarland TX)
출원인 / 주소
  • Exxon Chemical Patents Inc. (Linden NJ 02)
인용정보 피인용 횟수 : 144  인용 특허 : 11

초록

A breathable polyolefin film is prepared by melt embossing a highly filled polyolefin film to impose a pattern of different film thickness therein and by stretching the melt embossed film to impart greater permeability in the areas of reduced thickness in comparison to the areas of greater thickness

대표청구항

A method of making a breathable film comprising the steps of: mixing a polyolefin with a filler; extruding a precursor film from the polyolefin/filler mixture; melt embossing the precursor film to impose therein a pattern of different film thicknesses; and stretching the melt embossed precursor film

이 특허에 인용된 특허 (11)

  1. Cancio Leopoldo V. (Cincinnati OH) Wu Pai-Chuan (Cincinnati OH), Cross-tearable decorative sheet material.
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