Polyesters of methyl-substituted polyphenylcarboxylic acids
AssigneeStandard Oil Company (Indiana)
InventorJohn A. Donohue
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Abstract
Methyl-substituted polyphenylacyl compounds are prepared by selective oxidation of oligomers of mesitylene. These methyl-substituted polyphenylacyl compounds are useful as intermediates for polyamides and polyesters. The esters are useful as plasticizers for polyvinylchloride.
Claims8
A resinous polymer of a methyl-substituted polyphenylcarboxylic acid compound wherein the said polymer has the structural formula ##STR8## wherein n comprises a whole number from 1 to 3 inclusive, L is --O--, Z is selected from the group consisting of divalent aliphatic moietics and divalent aromatic moieties, m is a number of recurring units wherein the said resinous polymer has an inherent viscosity of at least 0.20 dl/g in a 60/40 phenol-tetrachloroethane solvent at 30.degree. C.
Dependencies are inferred from the claim text.