US 12,275,816 B2
Epoxy resin compositions and coating systems
Matthew Sumpter, Richmond, TX (US)
Assigned to WESTLAKE EPOXY INC., Houston, TX (US)
Filed by Hexion Inc., Columbus, OH (US)
Filed on Apr. 28, 2022, as Appl. No. 17/731,580.
Prior Publication US 2023/0348655 A1, Nov. 2, 2023
Int. Cl. C08G 59/24 (2006.01); C08F 220/28 (2006.01); C08G 59/50 (2006.01); C09D 163/00 (2006.01)
CPC C08G 59/24 (2013.01) [C08F 220/283 (2020.02); C08G 59/5026 (2013.01); C09D 163/00 (2013.01); C08G 2150/00 (2013.01)] 19 Claims
 
1. A resin composition, comprising:
from about 25 wt % to about 99 wt % of a cycloaliphatic epoxy resin;
a curing agent comprising an aliphatic polyamine, a polyetheramine, a cycloaliphatic amine, an aromatic amine, a Mannich base, a ketimine, an oxazoline, an amidoamine, or combinations thereof; and
an acetoacetoxy-functionalized polymer having a weight average molecular weight of about 5,000 g/mol to about 100,000 g/mol, the acetoacetoxy-functionalized polymer comprising:
acetoacetoxy-functionalized monomer units; and
co-monomer units comprising an acrylate monomer, a methacrylate monomer, an alpha-olefin monomer, a vinyl halide monomer, a diester of a carboxylic acid monomer, an unsaturated nitrile monomer, an alpha, beta-unsaturated carboxylic acid monomer, an alpha, beta-unsaturated amide monomer, or combinations thereof.