公开(公告)号：US5278278A

公开(公告)日：1994-01-11

申请号：US020000

申请日：1993-02-17

申请人： Masaru Okamoto ,  Toshihide Inoue ,  Shiro Kataoka

发明人： Masaru Okamoto ,  Toshihide Inoue ,  Shiro Kataoka

IPC分类号： C08G63/60

CPC分类号： C08G63/605

摘要： The present invention relates to polyesters capable to give moldings having excellent flow characteristics, heat resistance and mechanical properties.These polyesters are prepared by copolymerizing specified amounts of specific dioxycompounds such as t-butylhydroquinone, phenylhydroquinone and so on with polyesters comprising specified amounts of p-hydroxybenzoic acid, 4,4'-dihydroxybiphenyl, hydroquinone and terephthalic acid or terephthalic acid and isophthalic acid.

摘要翻译： 本发明涉及能够赋予流动性，耐热性和机械特性优异的成型品的聚酯。 这些聚酯通过将指定量的特定二羟基化合物如叔丁基氢醌，苯基氢醌等与包含规定量的对羟基苯甲酸，4,4'-二羟基联苯，氢醌和对苯二甲酸或对苯二甲酸和间苯二甲酸的聚酯共聚来制备。

公开(公告)号：US5221705A

公开(公告)日：1993-06-22

申请号：US717979

申请日：1991-06-20

申请人： Toshihide Inoue ,  Yasunori Ichikawa ,  Masaru Okamoto ,  Norio Kitajima

发明人： Toshihide Inoue ,  Yasunori Ichikawa ,  Masaru Okamoto ,  Norio Kitajima

IPC分类号： C08K5/527 ,  C08L67/00 ,  C09K21/14 ,  C08K5/52 ,  C08K5/02 ,  C08K5/10 ,  C08L67/02

CPC分类号： C09K21/14 ,  C08K5/527 ,  C08L67/00 ,  C08L25/18

摘要： A flame-retardant thermotropic polyester composition comprising 100 parts by weight of thermotropic polyester (A) and 0.5 to 60 parts by weight of poly(bromostyrene)(B) having the following structural unit produced from bromostyrene monomer, as the principal structural component thereof, and having a number average molecular weight of 1.times.10.sup.3 to 30.times.10.sup.4 ; ##STR1## has excellent flame retardancy, mechanical properties and heat resistance, and the shaped articles molded from the composition has also superior appearance.