发明公开
EP0857746A4 PROCESS FOR THE PREPARATION OF SILOXANE COPOLYMERS AND RESIN COMPOSITIONS CONTAINING THE SILOXANE COPOLYMERS PREPARED BY THE PROCESS
失效
基本信息:
- 专利标题： PROCESS FOR THE PREPARATION OF SILOXANE COPOLYMERS AND RESIN COMPOSITIONS CONTAINING THE SILOXANE COPOLYMERS PREPARED BY THE PROCESS
- 专利标题（中）：工艺通过该方法和含有该硅氧烷共聚物树脂组合物制备得到的硅氧烷共聚物
- 申请号：EP97935799 申请日：1997-08-15
- 公开(公告)号：EP0857746A4 公开(公告)日：1999-11-24
- 发明人： HIIRO TOMOKI , OHSHIMA KOJI , AOYAMA TAIZO
- 申请人： KANEKA CORP
- 专利权人： KANEKA CORP
- 当前专利权人： KANEKA CORP
- 优先权： JP22020396 1996-08-21; JP8700097 1997-04-04
- 主分类号： C08G63/695
- IPC分类号： C08G63/695 ; C08G64/18 ; C08G77/445 ; C08G77/448 ; C08L83/10
摘要：
A process for the preparation of siloxane copolymers by reacting at least one silicon compound of general formula (I) or (II) with at least one diol and at least one dicarbonate in the presence of an esterification or transesterification catalyst, wherein R , R , R and R are each independently hydrogen or an optionally substituted organic group; X and Y are each independently hydrogen or an optionally substituted organic group; a is an integer of 0 to 5000; and b is an integer of 3 to 20.
IPC结构图谱:
| C | 化学；冶金 |
| --C08 | 有机高分子化合物；其制备或化学加工；以其为基料的组合物 |
| ----C08G | 用碳—碳不饱和键以外的反应得到的高分子化合物 |
| ------C08G63/00 | 由在高分子主链上形成羧酸酯键的反应制得的高分子化合物 |
| --------C08G63/66 | .含有醚基形式氧的聚酯 |
| ----------C08G63/695 | ..含硅的 |