Water-dispersible polyisocyanate composition, production...

Details Water-dispersible polyisocyanate composition, production... Water-dispersible polyisocyanate composition, production...

2006-11-01

2008-08-26

Peng, Kuo-Liang (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C528S085000, C106S287250

Reexamination Certificate

active

07417090

ABSTRACT:
A water-dispersible polyisocyanate composition comprises a hydrophobic polyisocyanate (A) and a vinyl polymer (B) having a nonionic group and an isocyanate group, in which the hydrophobic polyisocyanate (A) can be dispersed in a water-based medium by the vinyl polymer (B) having a nonionic group and an isocyanate group. The water-dispersible polyisocyanate composition is produced by reacting a hydrophobic polyisocyanate with a vinyl polymer (b) having a nonionic group and an active hydrogen group-containing group capable of reacting with an isocyanate group at a molar ratio of the isocyanate group to the active hydrogen group-containing group of 3 to 350.

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Rompp-Chemie Lexikon, pp. 3482, 3514, 4859.
Office Action issued on Jul. 5, 2007 on the counterpart European Patent Application No. 01978831.4.

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