基本信息:
- 专利标题： CARBODIIMIDATION METHOD
- 专利标题（中）：CARODEIMIDATION方法
- 申请号：EP11710227.7 申请日：2011-03-28
- 公开(公告)号：EP2552982B1 公开(公告)日：2016-07-27
- 发明人： AVTOMONOV, Evgeny , KRAUS, Harald , DÖRR, Sebastian , ACHTEN, Dirk , BÜCHNER, Jörg
- 申请人： Covestro Deutschland AG
- 申请人地址： Kaiser-Wilhelm-Allee 60 51373 Leverkusen DE
- 专利权人： Covestro Deutschland AG
- 当前专利权人： COVESTRO DEUTSCHLAND AG
- 当前专利权人地址： COVESTRO DEUTSCHLAND AG
- 代理机构： Levpat
- 优先权： EP10158927 20100401
- 国际公布： WO2011120928 20111006
- 主分类号： C08G18/02
- IPC分类号： C08G18/02 ; C08G18/28 ; C08G18/79
摘要：
Preparing polycarbodiimide and aqueous dispersion of polycarbodiimide, comprises converting at least an aliphatic or cycloaliphatic polyisocyanate at 160-230[deg] C in the presence of 50-3000 ppm of carbodiimidization catalyst, based on the molar amount of polyisocyanate, to polycarbodiimide having an average functionality of 1-10 carbodiimide units, where the reaction gases are temporarily or permanently removed. Independent claims are included for: (1) the polycarbodiimide, obtained by the above process; (2) 4,4'-(4,4'-(methanediylidenebis(azan-1-yl-1-ylidene))bis(cyclohexane-4,1-diyl))bis(methylene)bis(cyclohexane-4,1-diyl)dicarbamic acid compound of formula (II); and (3) an aqueous dispersion comprising (II). R2, R3 : monoalkoxy-poly(ethylene glycol) group of formula (R1-O-(CH 2-CH 2-O) n-H) (I), 1-30C alcohol or 1-30C monoalkoxyethylene glycol; R1 : 1-30C alkyl, 1-30C aryl or 1-30C acyl; and n : 4-30. [Image].
公开/授权文献:
- EP2552982A2 CARBODIIMIDATION METHOD 公开/授权日：2013-02-06
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 |
| ------C08G18/00 | 异氰酸酯类或异硫氰酸酯类的聚合产物 |
| --------C08G18/02 | .只是异氰酸或异硫氰酸酯的 |