发明授权
- 专利标题: Polymer compositions having improved molding characteristics
- 专利标题(中): 聚合物组合物具有改进的成型特性
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申请号: US629826申请日: 1990-12-19
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公开(公告)号: US5091464A公开(公告)日: 1992-02-25
- 发明人: Paul J. Huspeni , Richard Layton , Paul D. Frayer
- 申请人: Paul J. Huspeni , Richard Layton , Paul D. Frayer
- 申请人地址: IL Chicago
- 专利权人: Amoco Corporation
- 当前专利权人: Amoco Corporation
- 当前专利权人地址: IL Chicago
- 主分类号: C08L67/00
- IPC分类号: C08L67/00
摘要:
Disclosed are novel blends of fully aromatic copolyesters which comprise (a) 1-19 parts by weight of a polyester comprising recurring moieties of dihydroxybenzene, nonvicinal benzene dicarboxylate, para oxybenzoate to (b) 1 part by weight of a polyester comprising recurring moieties of diphenol, nonvicinal benzene dicarboxylate, para oxybenzoate; wherein the polyester (a) has a melting point in the range of about 340 C. to 400 C., a crystallization temperature of from about 300-340 C., and a crystallization rate of at least 1,000 counter per minute. The blends display improved surface properties, particularly improved blistering resistance.
公开/授权文献
- US4043817A Method of forming photographic images for lithographic use 公开/授权日:1977-08-23
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