Hydroxy-functional polyester-polyurethane dispersions,...

Details Hydroxy-functional polyester-polyurethane dispersions,... Hydroxy-functional polyester-polyurethane dispersions,...

2011-03-08

2011-03-08

Wu, David (Department: 1762)

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

Synthetic resins

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

C524S594000, C524S538000, C524S839000, C524S840000, C525S418000, C525S419000, C525S437000, C525S439000, C525S440140, C525S449000, C525S454000, C525S466000

Reexamination Certificate

active

07902302

ABSTRACT:
Hydroxy-functional polyester-polyurethane dispersions comprising a reaction product of: (a) at least one, at least difunctional polyol component; (b) at least one ionizable compound having at least one acid group and at least one functional group capable of reacting with isocyanate groups, the at least one functional group selected from the group consisting of mono-, di-, and trihydroxycarboxylic acids, hydroxysulfonic acids, aminosulfonic acids, and aminocarboxylic acids; (c) at least one acid anhydride; and (d) at least one, at least difunctional polyisocyanate component; methods for preparing such dispersions; compositions containing such dispersions; and uses thereof.

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