发明授权
- 专利标题： Method of laminating gas permeable sheet material
- 专利标题（中）： 气体透过片材的层压方法
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申请号： US08669840申请日： 1996-06-26
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公开(公告)号： US06355135B1公开(公告)日： 2002-03-12
- 发明人: Osamu Inoue , Toshio Kusumi , Jun Asano , Katsutoshi Yamamoto , Osamu Tanaka , Shinichi Chaen , Nobuki Uraoka
- 申请人： Osamu Inoue , Toshio Kusumi , Jun Asano , Katsutoshi Yamamoto , Osamu Tanaka , Shinichi Chaen , Nobuki Uraoka
- 优先权： JP5-009796 19930125; WOPCT/JP94/00079 19940121
- 主分类号： C09J502
- IPC分类号： C09J502
摘要：
A method of laminating at least two gas permeable sheet materials includes: (1) providing at least a first gas permeable sheet material, wherein at least a portion of at least a surface region of the first sheet material is thermoplastic material; (2) providing at least a second gas permeable sheet material of polytetrafluoroethylene; (3) superposing the sheet materials; and (4) contacting the sheet materials with a heating means to heat the thermoplastic material to a temperature from 140° to 230° C., so as to melt the thermoplastic material and laminate the sheet materials to one another, without the application of direct pressure in the thickness direction of the sheet materials during the contacting step so as to form a gas permeable laminate.