Patent ID: 6992133

Claim:
A polymer composition comprising a blend or admixture of: a) at least one non-linear, branched polyester-based polyol resin which has an average functionality of greater than 2, a number average molecular weight of at least 500, and a hydroxyl value of between about 35 and about 350; b) at least one acrylic polyol resin blended with the polyester-based polyol resin and; c) at least one curing agent selected from the group consisting of an aliphatic amino resin, an aliphatic epoxy resin, an aromatic epoxy resin, a cycloaliphatic epoxy resin, an aliphatic di-isocyanate, an aliphatic triisocyanate, an aliphatic triisocyanurate, an aliphatic polyisocyanate, an aliphatic isocyanurate, an aliphatic allophanate, an aliphatic uretdione, an aliphatic biuret, an aliphatic isocyanate prepolymer, a cycloaliphatic di-isocyanate, a cycloaliphatic triisocyanate, a cycloaliphatic triisocyanurate, a cycloaliphatic polyisocyanate, a cycloaliphatic isocyanurate, a cycloaliphatic allophanate, a cycloaliphatic uretdione, a cycloaliphatic biuret, a cycloaliphatic isocyanate prepolymer, an aromatic di-isocyanate, an aromatic triisocyanate, an aromatic triisocyanurate, an aromatic polyisocyanate, an aromatic isocyanurate, an aromatic allophanate, an aromatic uretdione, an aromatic biuret, and an aromatic isocyanate prepolymer, in an amount substantially equivalent to the molar equivalent quantity of a) plus b); d) at least one catalyst; and e) at least one liquid carrier; wherein the non-linear polyester-based polyol is made by the process of reacting reactants consisting of (a) at least one branched, polyhydric alcohol having at least three hydroxyl groups, at least one of said hydroxyl groups being covalently bonded to a branched carbon atom; and (b) at least one glycol or diol selected from the group consisting of 1,4 butanediol, diethylene glycol, 2-methyl-1,3-propanediol, 2,2-dimethyl-1,3-propanediol, 1,4-cyclohexanedimethanol, 2-butyl-2-ethyl-1,3-propanediol, 2,2,4-trimethyl-1,3-pentanediol, 1,6-hexanediol, propylene glycol, 1,2 hexanediol, 1,3-butanediol, 1,5-pentanediol, and mixtures thereof; with (c) at least one compound selected from the group consisting of an aliphatic or aromatic dicarboxylic acid, compound selected from the group consisting of an aliphatic or aromatic dicarboxylic acid, a C 1 –C 6 alkyl diester of an aliphatic or aromatic dicarboxylic acid, an aliphatic anhydride, and an aliphatic or aromatic diacid halide in a mole ratio of (a):(b):(c) from about 1:2:2 to about 1:205:150, at a temperature sufficient to achieve esterification or transesterification.