发明授权
US4413109A Embossed films obtained from ethylene-propylene copolymers, and a
process and apparatus for manufacturing the films
失效
由乙烯 - 丙烯共聚物获得的压花膜,以及用于制造薄膜的方法和装置
- 专利标题: Embossed films obtained from ethylene-propylene copolymers, and a process and apparatus for manufacturing the films
- 专利标题(中): 由乙烯 - 丙烯共聚物获得的压花膜,以及用于制造薄膜的方法和装置
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申请号: US245757申请日: 1981-03-20
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公开(公告)号: US4413109A公开(公告)日: 1983-11-01
- 发明人: Armand Haas
- 申请人: Armand Haas
- 申请人地址: FRX Paris La Defense
- 专利权人: Societe Chimique des Charbonnages-CdF Chimie
- 当前专利权人: Societe Chimique des Charbonnages-CdF Chimie
- 当前专利权人地址: FRX Paris La Defense
- 优先权: FRX8002748 19800208
- 主分类号: B29C43/00
- IPC分类号: B29C43/00 ; B29C33/00 ; B29C43/30 ; B29C47/00 ; B29C49/00 ; B29C51/00 ; B29C59/00 ; B29C59/04 ; B29C61/00 ; B29K23/00 ; B29L7/00 ; B32B27/32 ; C08J5/18 ; B29D7/14 ; C08F210/16
摘要:
An embossed ethylene-propylene copolymer film having a thickness of less than or equal to 24 microns. A method and apparatus for making the film by blow-extruding the ethylene-propylene copolymer into a tubular web, pinching the tubular web between pinch rolls, and embossing the pinched web by passing it between an embossing roll and a pressure roll.
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