发明授权
- 专利标题: Thermotropic aromatic polyesters with high rigidity, a process for the production thereof and the use thereof for the production of mouldings, filaments, fibres and films
- 专利标题(中): 具有高刚性的热致变性芳族聚酯,其制造方法及其用于生产模制品,长丝,纤维和薄膜的用途
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申请号: US755847申请日: 1985-07-17
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公开(公告)号: US4614789A公开(公告)日: 1986-09-30
- 发明人: Hans-Rudolf Dicke , Hermann Kauth
- 申请人: Hans-Rudolf Dicke , Hermann Kauth
- 申请人地址: DEX Leverkusen
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX3427886 19840728
- 主分类号: C08G63/00
- IPC分类号: C08G63/00 ; C08G63/60
摘要:
Thermotropic aromatic polyesters with high rigidity and favorable melt viscosity contain condensed radicals of (a) p-hydroxybenzoic acid, (b) hydroquinone and/or 4,4'-dihydroxydiphenyl, (c) isophthalic acid and optionally terephthalic acid and (d) benzophenone dicarboxylic acid in defined weight ratios.
公开/授权文献
- US5757633A High efficiency multistep sinewave synthesizer 公开/授权日:1998-05-26
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