公开(公告)号：EP0055449A1

公开(公告)日：1982-07-07

申请号：EP81110649.1

申请日：1981-12-21

申请人： Kao Corporation

发明人： Yasuda, Shinichiro ,  Morimoto, Eiji ,  Sonobe, Atsushi

IPC分类号： C08G63/66

CPC分类号： C08G63/668

摘要： A new polyester resin is produced by condensation polymerization of (a) a diol component of the formula:
wherein R' is an alkylene group of 2 to 4 carbon atoms; and x and y are positive integers, the sum of them being 2 to 16 on an average, and (b) an acid component of polybasic (at least dibasic) carboxylic acid, anhydride thereof, and lower alkyl ester thereof, said acid component (b) containing 1 to 50 mol% of a dibasic carboxylic acid or anhydride thereof of the formula:
where R 2 and R 3 are saturated or unsatured hydrocarbon groups of 4 to 20 carbon atoms and 10 to 30 mol% of trimellitic acid or anhydride thereof. The polyester has improved toughness, abrasion resistance and flexibility.

公开(公告)号：EP0128569A2

公开(公告)日：1984-12-19

申请号：EP84106610.3

申请日：1984-06-08

申请人： Kao Corporation

发明人： Yasuda, Shinichiro ,  Morimoto, Eiji ,  Ueda, Yuichi

IPC分类号： G03G9/08

CPC分类号： G03G9/08755

摘要： An electrophotographic developer composition, toner, comprises a binder of a polyester resin and a colorant, said polyester resin having a softening point of 80 to 180 °C, further having been obtained by copolycondensing (A) a diol component with (B) carboxylic acid components comprising (a) a dicarboxylic acid, (b) trimellitic acid and (c) a polycarboxylic acid. It is improved in the fixation property.

公开(公告)号：EP0128569A3

公开(公告)日：1985-10-30

申请号：EP84106610

申请日：1984-06-08

申请人： Kao Corporation

发明人： Yasuda, Shinichiro ,  Morimoto, Eiji ,  Ueda, Yuichi

IPC分类号： G03G09/08

CPC分类号： G03G9/08755

摘要： An electrophotographic developer composition, toner, comprises a binder of a polyester resin and a colorant, said polyester resin having a softening point of 80 to 180 °C, further having been obtained by copolycondensing (A) a diol component with (B) carboxylic acid components comprising (a) a dicarboxylic acid, (b) trimellitic acid and (c) a polycarboxylic acid. It is improved in the fixation property.

公开(公告)号：EP0055449B1

公开(公告)日：1985-04-10

申请号：EP81110649.1

申请日：1981-12-21

申请人： Kao Corporation

发明人： Yasuda, Shinichiro ,  Morimoto, Eiji ,  Sonobe, Atsushi

IPC分类号： C08G63/66

CPC分类号： C08G63/668

公开(公告)号：EP0128569B1

公开(公告)日：1987-10-28

申请号：EP84106610.3

申请日：1984-06-08

申请人： Kao Corporation

发明人： Yasuda, Shinichiro ,  Morimoto, Eiji ,  Ueda, Yuichi

IPC分类号： G03G9/08

CPC分类号： G03G9/08755