发明授权
US4181792A Liquid crystal copolyesters containing terephthalic acid, isophthalic
acid, 2,6-naphthalenedicarboxylic acid and hydroquinone
失效
含有对苯二甲酸,间苯二甲酸,2,6-萘二甲酸和氢醌的液晶共聚酯
- 专利标题: Liquid crystal copolyesters containing terephthalic acid, isophthalic acid, 2,6-naphthalenedicarboxylic acid and hydroquinone
- 专利标题(中): 含有对苯二甲酸,间苯二甲酸,2,6-萘二甲酸和氢醌的液晶共聚酯
-
申请号: US888257申请日: 1978-03-20
-
公开(公告)号: US4181792A公开(公告)日: 1980-01-01
- 发明人: Winston J. Jackson, Jr. , John C. Morris
- 申请人: Winston J. Jackson, Jr. , John C. Morris
- 申请人地址: NY Rochester
- 专利权人: Eastman Kodak Company
- 当前专利权人: Eastman Kodak Company
- 当前专利权人地址: NY Rochester
- 主分类号: C08G63/00
- IPC分类号: C08G63/00 ; C08G63/18 ; C08G63/19 ; C09D167/00 ; D01F6/62
摘要:
Disclosed are liquid crystal copolyesters having melting points low enough to allow the copolyesters to be melt-processed in conventional equipment. The copolyesters are prepared from terephthalic acid, isophthalic acid, 2,6-naphthalenedicarboxylic acid and a diacyl ester of hydroquinone and contain the following divalent radicals: ##STR1##
公开/授权文献
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