Stabilizer polymer and coating compositions thereof
View Patent ↗A stabilizer polymer and coating compositions containing the stabilizer polymer are provided. The stabilizer polymer preferably includes a polyester backbone and a plurality of carbon-carbon double bonds. A coating composition is provided that preferably includes the stabilizer polymer, an acrylic component, and a thermoplastic dispersion. In a preferred embodiment, the acrylic component is included in the stabilizer polymer.
1. A coating composition comprising:
a resin system comprising:
a stabilizer polymer having a polyester backbone and a plurality of pendant alkenyl groups each having carbon-carbon double bonds, and
an acrylic component; and
a thermoplastic dispersion comprising polyvinyl chloride particles and a carrier.
2. The composition of claim 1 , further comprising a crosslinker.
3. The composition of claim 1 , wherein the stabilizer polymer includes the acrylic component.
4. The composition of claim 1 , wherein the coating composition is completely free of mobile BPA, BPF, and aromatic glycidyl ether compounds.
5. The composition of claim 1 , wherein the coating composition is substantially free of BPA, BPF, and aromatic glycidyl ether compounds.
6. The composition of claim 1 , wherein at least two of the carbon-carbon double bonds are conjugated double bonds.
7. The composition of claim 1 , wherein at least one of the carbon-carbon double bonds is provided by an unsaturated fatty acid.
8. The composition of claim 1 , wherein at least one of the pendant alkenyl groups comprises a structural unit represented by the formula (I):
—X—R 1 ,
wherein:
R 1 is a terminal organic group that comprises a substituted or unsubstituted alkyl, alkenyl, cycloalkyl, or cycloalkenyl groups; and
X is a divalent linkage group that attaches R 1 to the polyester backbone, wherein X comprises an amide, carbonate, epoxide, ester, urea, urethane group, or (CR y ) z groups, where y is 0, 1 or 2, z is an integer from 1 to 10, and R is independently selected from hydrogen, a halogen, oxygen, nitrogen, or an organic group.
9. The composition of claim 8 , wherein the structural unit of formula (I) includes at least about 5 carbon atoms.
10. The composition of claim 8 , wherein R 1 includes at least one of the carbon-carbon double bonds.
11. The composition of claim 1 , wherein the stabilizer polymer includes at least one terminal hydroxyl group.
12. The composition of claim 1 , wherein the stabilizer polymer includes at least one terminal oxirane group.
13. A packaging article with the composition of claim 1 adhered to at least a portion of one surface thereof.
14. A method comprising:
applying the coating composition of claim 1 to a substrate; and
curing the coating composition to form a cured coating on the substrate.
15. A method comprising:
providing a resin system comprising:
a stabilizer polymer having:
a polyester backbone, and
a plurality of pendant alkenyl groups each having carbon-carbon double bonds; and
an acrylic component;
providing a carrier;
providing polyvinyl chloride particles; and
preparing a coating composition that includes the resin system, the carrier, and the polyvinyl chloride particles.
16. The method of claim 15 , further comprising:
forming the resin system by reacting:
a polyol,
a polycarboxylic acid,
an unsaturated fatty acid, and
a (meth)acrylate compound.
17. The method of claim 16 , further comprising forming the stabilizer polymer by reacting the polyol, the polycarboxylic acid, the unsaturated fatty acid, and the (meth)acrylate compound with a diglycidyl ether compound.
18. The method of claim 16 , wherein the polyol includes at least 3 hydroxyl groups.
19. The method of claim 16 , wherein at least one of the carbon-carbon double bonds is provided by an unsaturated fatty acid.
20. The method of claim 16 , wherein at least two of the carbon-carbon double bonds are conjugated double bond.