IP Library › Granted Patent US 7,951,856
Granted Patent B2
US 7,951,856 · App. 11/879,021 · Granted May 31, 2011

Coating composition with accelerated low temperature cure

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Quick Facts
Patent No.
US 7,951,856
App. No.
11/879,021
Filed
Jul 13, 2007
Granted
May 31, 2011
Kind
B2
Art Unit
1767
USPC
523/500
Abstract

A coating composition including an unsaturated resin selected from polyesters, alkyds or combinations thereof; an alkoxy(meth)acrylic functional monomer, and a thermoplastic compound containing active hydrogen groups; a curing agent; and a curing promoter such as at least one metal drier.

Claims (18)

1. A coating composition, comprising:

an unsaturated polyester resin, wherein the unsaturated polyester comprises allyl ether functionality;

an alkoxy (meth)acrylic functional monomer, wherein the functional monomer is selected from di and tri(meth)acrylic functional compounds with about 8 to about 16 ethoxy or propoxy groups along a backbone;

a thermoplastic compound containing active hydrogen groups, wherein the thermoplastic compound is selected from cellulose acetate butyrate (CAB), cellulose acetate (CA) and combinations thereof;

at least one metal drier, wherein the metal drier is a metal salt of an organic acid, and wherein the metal comprises Co, Mn, Pb, Ce, Zr, Ca, Zn, Bi, Cu, Cr, Li, K, Ni, Ne and mixtures and combinations thereof; and

a curing agent;

wherein the composition is substantially free of any of formaldehyde, isocyanate and styrene.

2. The coating composition of claim 1 , wherein the alkoxy (meth)acrylic functional monomer comprises ethoxy groups.

3. The coating composition of claim 1 , wherein the alkoxy (meth)acrylic functional monomer comprises at least one of ethylene glycol and propylene glycol units.

4. The coating composition of claim 1 , wherein the backbone of the alkoxy (meth)acrylic functional monomer comprises 8-12 ethoxy or propoxy groups.

5. The coating composition of claim 1 , wherein the backbone of the alkoxy (meth)acrylic functional monomer comprises 8 ethoxy or propoxy groups.

6. The composition of claim 1 , wherein the metal comprises K, Co, Mg and mixtures and combinations thereof.

7. The composition of claim 1 , wherein the metal comprises Co.

8. The composition of claim 1 , wherein the organic acid comprises a C8 to C20 fatty acid.

9. The composition of claim 1 , further comprising a second (meth)acrylic functional monomer.

10. The composition of claim 1 , further comprising at least one of a surface active agent, a filler, a pigment and a colorant.

11. The composition of claim 1 , the curing agent comprises at least one peroxide compound.

12. The composition of claim 11 , wherein the peroxide compound is a ketone peroxide.