发明名称 |
Water-dispersible polyisocyanate compositions |
摘要 |
Water-dispersible polyisocyanate compositions based on aliphatic and aromatic diisocyanates and having an NCO content, based on solids, of 6 to 21% by weight, a weight ratio of incorporated TDI units to incorporated HDI units of 6:1 to 0.1:1 and a content of ethylene oxide units, arranged within terminal polyether chains, of 5 to 40% by weight; a method for the preparation of these polyisocyanate compositions by reacting a polyisocyanate component with monovalent polyether alcohols containing ethylene oxide units at an NCO/OH equivalent ratio of 2:1 to 120:1; and aqueous coating compositions containing these polyisocyanate compositions and polyhydroxyl compounds as the binder.
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申请公布号 |
US5563207(A) |
申请公布日期 |
1996.10.08 |
申请号 |
US19950428753 |
申请日期 |
1995.04.25 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
BRAHM, MARTIN;KREMER, WOLFGANG;SCHMALSTIEG, LUTZ;PROBST, JOACHIM;KUBITZA, WERNER |
分类号 |
C08G18/08;C08G18/00;C08G18/10;C08G18/28;C08G18/48;C08G18/70;C08G18/72;C08G18/80;C09D5/00;C09D175/00;C09D175/04;(IPC1-7):C08J3/00;C08K3/20;C08L75/00 |
主分类号 |
C08G18/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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