公开(公告)号：EP2626745A4

公开(公告)日：2016-06-08

申请号：EP11830743

申请日：2011-10-06

申请人： SANYO CHEMICAL IND LTD

发明人： AKUTAGAWA TAKASHI ,  IWATA MASAKAZU ,  HONDA MASARU ,  ARIYOSHI TOMOYUKI

IPC分类号： G03G9/087 ,  G03G9/08 ,  G03G9/097

CPC分类号： G03G9/08755 ,  G03G9/0806 ,  G03G9/08764 ,  G03G9/08788 ,  G03G9/08795 ,  G03G9/08797

摘要： Provided is a toner binder which combines excellent low-temperature fixing properties and excellent hot-offset resistance (namely which permits a wide fixing-temperature range) and which exhibits excellent storage stability. The toner binder comprises (A) a polyester resin, (B) a specific crystalline resin and, if necessary, (C) a non-crystalline linear polyester resin. The polyester resin (A) comprises a carboxylic acid component (x) and a polyol component (y) as the essential constituent units, said component (x) comprising two or more kinds of dicarboxylic acids (x1) selected from among aromatic dicarboxylic acids and ester-forming derivatives thereof in a total amount of 80 mol% or more and further containing an at least trivalent polycarboxylic acid (x2) as another essential component, and said component (y) comprising a C2-10 aliphatic diol (y1) in an amount of 50 mol% or more. Further, the polyester resin (A) exhibits a storage modulus at 150°C [G'(150) ] of 2000 Pa or more, and the [G'(150) ] and [G'(180)] (storage modulus at 180°C) of the resin (A) satisfy a specific relationship.

公开(公告)号：EP2578619A4

公开(公告)日：2014-08-27

申请号：EP11789422

申请日：2011-05-27

申请人： SANYO CHEMICAL IND LTD

发明人： HARADA HIDEO ,  NOSE KENTA ,  HONDA MASARU ,  IWAWAKI EIJI ,  TANAKA TAKAHIRO

IPC分类号： C08J3/12

CPC分类号： C08L83/06 ,  C08G18/10 ,  C08G18/4216 ,  C08G18/73 ,  C08G18/755 ,  C08G18/8175 ,  C08G77/20 ,  C08J3/126 ,  C08J2300/00 ,  C08J2383/00 ,  C08L67/02 ,  C08L75/04 ,  Y02P20/544 ,  Y10T428/2995 ,  Y10T428/2998 ,  C08G18/287

公开(公告)号：EP2626744A4

公开(公告)日：2015-08-26

申请号：EP11830379

申请日：2011-10-05

申请人： SANYO CHEMICAL IND LTD

发明人： IWAGOE YUYA ,  HONDA MASARU

IPC分类号： G03G9/087 ,  C08G63/16 ,  C08L67/02 ,  G03G9/08

CPC分类号： G03G9/08755 ,  C08G63/16 ,  C08L67/02 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/08795 ,  G03G9/08797 ,  C08L67/00

摘要： Provided is a toner binder having excellent charging characteristics and blocking resistance, and an increased range of fixing temperatures when used as a toner. The present invention is a toner binder containing a polyester resin (P) comprising one or more types of polyester resins obtained by polycondensation of a carboxylic acid component (x) and an alcohol component (y), wherein at least one type (P1) of (P) contains 50 to 95 mol% of a aliphatic diol (y1) having a carbon number of 2 to 4 in the alcohol component (y), and (P) satisfies expressions (1) and (2). 11.5 ‰¤ SP value cal / cm 3 1 / 2 of P ‰¤ 13.0 5.2 ‰¤ HLB value by Oda method of P ‰¤ 7.1