发明授权
- 专利标题： Polyimide sheet and preparation process of the sheet
- 专利标题（中）： 聚酰胺片及其制备方法
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申请号： US422895申请日： 1989-10-17
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公开(公告)号： US5237044A公开(公告)日： 1993-08-17
- 发明人: Masumi Saruwatari , Shoichi Tsuji , Masami Nakano , Shinobu Moriya , Masahiro Ohta , Toshiyuki Nakakura
- 申请人： Masumi Saruwatari , Shoichi Tsuji , Masami Nakano , Shinobu Moriya , Masahiro Ohta , Toshiyuki Nakakura
- 申请人地址： JPX Tokyo
- 专利权人： Mitsui Toatsu Chemicals, Inc.
- 当前专利权人： Mitsui Toatsu Chemicals, Inc.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX63-262712 19881020
- 主分类号： B29C47/00
- IPC分类号： B29C47/00 ; B29K79/00 ; C08G73/10 ; C08J5/18 ; C08L79/08
摘要：
Polyimide sheets having excellent thermal resistance and good surface appearance of the resultant sheets are obtained by a melt-extrusion process from a specific polyimide in the temperature range of 300.degree. C. to 450.degree. C. and a moisture content of 200 ppm or less.