发明授权
US5847028A Pigment dispersion and offset printing ink composition using the same
失效
使用其的颜料分散体和胶印油墨组合物
- 专利标题： Pigment dispersion and offset printing ink composition using the same
- 专利标题（中）： 使用其的颜料分散体和胶印油墨组合物
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申请号： US770152申请日： 1996-12-19
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公开(公告)号： US5847028A公开(公告)日： 1998-12-08
- 发明人: Koji Iwase , Hideki Kinoshita , Teruhisa Sato , Hiroyuki Ishikawa
- 申请人： Koji Iwase , Hideki Kinoshita , Teruhisa Sato , Hiroyuki Ishikawa
- 申请人地址： JPX Osaka
- 专利权人： Sakata INX Corp.
- 当前专利权人： Sakata INX Corp.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX7-337383 19951225; JPX8-054944 19960312; JPX8-243843 19960913
- 主分类号： B01F17/52
- IPC分类号： B01F17/52 ; B01F17/00 ; C09B67/46 ; C09C3/10 ; C09D11/00 ; C09D11/02 ; C09D11/033 ; C09D11/037 ; C09D11/10 ; C09D11/103 ; C09D11/106 ; C09D11/107 ; C09D11/108 ; C09D17/00 ; C09D161/04 ; C09D161/14 ; C08L63/10
摘要：
A pigment dispersion is disclosed which comprises a pigment, a pigment dispersant, and optionally a binder resin, wherein the pigment dispersion comprises as the pigment dispersion at least 0.2 parts by weight of a modified novolak resin (A) and/or a graft copolymer (B) relative to 100 parts by weight of the pigment, the modified novolak resin (A) and the graft copolymer (B) each having an aromatic ring and a ring structure given by ring opening of an epoxy group by a carboxyl group of a hydroxycarboxylic acid or a derivative thereof. An ink composition for offset printing containing the pigment dispersion is also disclosed.
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