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公开(公告)号:US3536576A
公开(公告)日:1970-10-27
申请号:US3536576D
申请日:1968-08-23
Applicant: US AIR FORCE
Inventor: SCHWARTZ SEYMOUR S
CPC classification number: B01D67/003 , A41D31/0016 , B01D39/1692 , B41M5/124 , B64G6/00 , C08J9/26 , C08J2201/042 , C08J2323/06 , Y10S220/902 , Y10S428/912 , Y10S428/913 , Y10T428/20 , Y10T428/23 , Y10T428/24496
Abstract: Disclosed is an opaque, porous polyethylene sheet. Molecular weight of the polyethylene is in excess of 500,000. The porous sheet is capable of receiving a permanent impression and the area receiving the impression becomes translucent. Method for preparing the sheet is described.
Abstract translation: 公开了不透明的多孔聚乙烯片材。 聚乙烯的分子量超过50万。 多孔片能够接受永久的印象,并且接受印模的区域变得半透明。 描述制备片材的方法。