Reactive emulsifiers based on unsaturated polyurethanes

Details Reactive emulsifiers based on unsaturated polyurethanes Reactive emulsifiers based on unsaturated polyurethanes

1995-10-26

1997-12-02

Lesmes, George F.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

524507, 524590, 524591, 524839, 528 60, 528 65, 528 66, 528 75, 528 76, 528 85, C08J 300, C08K 320, C08L 7500, C08G 1800

Patent

active

056937369

ABSTRACT:
Polyurethanes which have olefinic double bonds and a content by mass of ethylene oxide units, incorporated via polyethylene glycol, of from 20 to 80% and which are obtainable by reacting (a) at least one organic polyisocyanate with (b) at least one polybutadiene derivative which is reactive toward isocyanates, and (c) if desired, one or more diols which contain, in addition, at least one further hydroxyl group or carboxyl group, and (d) a polyoxyalkylene glycol component having a molar mass of from 500 to 10,000 g/mol, wherein the ratio of NCO to OH equivalents, based on all the starting components (a) to (d), is from 0.5:1 to 1.2:1. The polyurethanes are useful, for example, as reactive emulsifiers.

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