发明授权
US5064704A Shaped structure of polyarylate copolymers having high tensile
elongation at break
失效
具有高拉伸伸长率的多芳基化合物共聚物的形状结构
- 专利标题: Shaped structure of polyarylate copolymers having high tensile elongation at break
- 专利标题(中): 具有高拉伸伸长率的多芳基化合物共聚物的形状结构
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申请号: US414412申请日: 1989-09-29
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公开(公告)号: US5064704A公开(公告)日: 1991-11-12
- 发明人: Charles W. Stewart
- 申请人: Charles W. Stewart
- 申请人地址: DE Wilmington
- 专利权人: E. I. Du Pont de Nemours and Company
- 当前专利权人: E. I. Du Pont de Nemours and Company
- 当前专利权人地址: DE Wilmington
- 主分类号: B29C55/00
- IPC分类号: B29C55/00 ; D01F6/84
摘要:
Extruded shaped structures of amorphous polyarylate copolymers, having a tensile elongation at break of at least 80% at 25.degree. C., are made by drawing a molten extrudate of the copolymer at a temperature at least 100.degree. C. above the glass transition temperature of the copolymer.
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