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US 9,534,074 B2Granted
Aqueous resinous dispersions that include a zinc (II) amidine complex and methods for the manufacture thereof
AssigneePPG Industries Ohio, Inc.
InventorsVenkatachalam Eswarakrishnan, Andrea Gray, Jonathan A. Love, Kelly Moore, Michael Sandala
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Abstract
Disclosed herein are stable aqueous resinous dispersions and methods for forming such dispersions that include a zinc (II) amidine complex.
Claims20
An aqueous resinous blend comprising:
- (a) a first aqueous resinous dispersion comprising:
- (i) an active hydrogen-containing, cationic salt group-containing polymer;
- and
- (ii) a zinc (II) amidine complex;
- and
- (b) a second aqueous resinous dispersion comprising:
- (i) an active hydrogen-containing, cationic salt group-containing polymer;
- and
- (ii) an at least partially blocked polyisocyanate that is selected so as to provide an aqueous resinous dispersion that cures at a temperature of 320° F. or below,
- wherein the aqueous resinous blend is a stable dispersion.
7 more elements
A method for making an aqueous resinous blend comprising combining a first aqueous resinous dispersion with a second aqueous resinous dispersion, wherein:
- (a) the first aqueous resinous dispersion comprises:
- (i) an active hydrogen-containing, cationic salt group-containing polymer;
- and
- (ii) a zinc (II) amidine complex;
- and
- (b) the second aqueous resinous dispersion comprises:
- (i) an active hydrogen-containing, cationic salt group-containing polymer;
- and
- (ii) an at least partially blocked polyisocyanate.
6 more elements
Dependencies are inferred from the claim text.