Hydrophilic copolysiloxanes and method for the production...

Details Hydrophilic copolysiloxanes and method for the production... Hydrophilic copolysiloxanes and method for the production...

2008-01-15

2008-01-15

Zimmer, Marc S. (Department: 1712)

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

Synthetic resins

Ethylenically unsaturated reactant admixed with either...

Reexamination Certificate

active

10539331

ABSTRACT:
Easily emulsified hydrophilic copolysiloxanes may be prepared by hydrosilylation employing an Si—H-functional organosiloxane with a compound containing both a hydrosilylatable group and an active hydrogen, and reacting the intermediate thus formed with a di- or polyisocyanate, wherein the reactants employed to produce the intermediate contain less than 2000 ppm water.

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