发明授权
- 专利标题： Odorless multi-valent metal modified products of salicyclic acid copolymers, production processes thereof, and use thereof as color-developing agents for pressure-sensitive copying paper sheets
- 专利标题（中）： 水杨酸共聚物的无味多价金属改性物，其制造方法及其作为压敏复印纸张的显色剂的用途
-
申请号： US393247申请日： 1989-08-14
-
公开(公告)号： US5028581A公开(公告)日： 1991-07-02
- 发明人: Keizaburo Yamaguchi , Yoshimitsu Tanabe , Akihiro Yamaguchi
- 申请人： Keizaburo Yamaguchi , Yoshimitsu Tanabe , Akihiro Yamaguchi
- 申请人地址： JPX Tokyo
- 专利权人： Mitsui Toatsu Chemicals, Incorporated
- 当前专利权人： Mitsui Toatsu Chemicals, Incorporated
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX63-201878 19880815
- 主分类号： B41M5/155
- IPC分类号： B41M5/155
摘要：
Odorless or absolutely ordorless multi-valent metal-modified salicylic acid. The former copolymers are obtained by condensing salicylic acid with a benzyl aldehyde, reacting the resultant resin with a styrene derivative and reacting the resin thus-obtained with a multivalent metal salt. The latter copolymers are obtained by adding water dropwise to the resultant multi-valvent metal-modified resin at a temperature above the boiling point of water to remove completely volatile matters.
公开/授权文献
- US4392273A Poultry processing apparatus 公开/授权日：1983-07-12
信息查询
IPC分类:
