Polymer systems plasticized with hydroxy fatty acids
AssigneeThe Standard Oil Company
InventorGeorge S. Li
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Abstract
A plasticized resin system is described, and the system comprises an intimate mixture of (a) an interpolymer derived from at least one vinyl monomer and an .alpha.,.beta.- unsaturated dicarboxylic acid, anhydride or the lower alkyl esters thereof, and (b) a plasticizing amount of a hydroxy substituted fatty acid containing at least about eight carbon atoms. The plasticized resin system also may contain at least one additional polar resin such as polycarbonates, polysulfones, polyesters, etc. The use of the hydroxy substituted fatty acid in this manner improves the processability of the interpolymers.
Claims21
A plasticized resin system comprising an intimate mixture of
- (a) an interpolymer derived from (i) at least one vinyl monomer and (ii) an .alpha.,.beta.-unsaturated dicarboxylic acid anhydride or the lower alkyl esters thereof, and
- (b) a plasticizing amount of a hydroxy substituted fatty acid containing at least about 8 carbon atoms.
A plasticized resin system comprising an intimate mixture of
- (a) a interpolymer of a styrene and maleic anhydride,
- (b) from 0 to 400 parts, per 100 parts of (a), of at least one additional polar resin selected from the group consisting of polyesters, polycarbonates and polysulfones, and
- (c) a plasticizing amount of a hydroxy substituted fatty acid containing at least 8 carbon atoms.
Dependencies are inferred from the claim text.