发明名称 |
Thermotropic aromatic copolyester. |
摘要 |
<p>Melt processable, aromatic copolyesters containing 15 to 40 mole % of 4-oxybenzoyl moieties from 0.25 to less than 2.5 mole % of randomising moieties, which are preferably 2-6 oxy naphthoyl moieties, the balance of moieties being equimolar proportions of moieties derived from hydroquinone and isophthalic acid. The preferred polymers are made by a dispersion polymerisation process using as a dispersion aid a finely divided particulate material having at least 95% by weight of particles with at least one dimension less than 1 micron.</p> |
申请公布号 |
EP0275164(A2) |
申请公布日期 |
1988.07.20 |
申请号 |
EP19880300181 |
申请日期 |
1988.01.11 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
MACDONALD, WILLIAM ALASDAIR;RYAN, TIMOTHY GEORGE |
分类号 |
C08G63/60;C08G63/68 |
主分类号 |
C08G63/60 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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