Vinyl resins containing epoxidized mixed mellitate compounds
AssigneeEmery Industries, Inc.
InventorsAlfred Johannes Dieterman, Roland Hendrick Riem
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Abstract
Epoxidized mixed mellitate compounds useful as plasticizers for vinyl polymers such as polyvinyl chloride and which have markedly improved resistance to oils and hydrocarbon extraction have been prepared. The mixed mellitate plasticizers of this invention are trimellitates wherein two of the ester moieties are simple esters derived from monofunctional alcohols with the third ester moiety being a complex ester obtained by the reaction of a diol with an unsaturated monobasic acid subsequently epoxidized at the site of unsaturation.
Claims3
A plasticized vinyl resin composition having impoved resistance to hydrocarbons comprising 100 parts polyvinyl chloride homopolymer or polyvinyl chloride copolymer and 5 to 100 parts of an epoxidized mixed mellitate of the formula ##STR9## wherein R.sub.1 and R.sub.2 are alkyl radicals having from 4 to 18 carbon atoms, A is a bivalent hydrocarbon radical having from 2 to 8 carbon atoms and R' is a branched or straight-chain epoxyalkyl radical having from 3 to 21 carbon atoms derived from an unsaturated monobasic acid and epoxidized at the sites of unsaturation.
Dependencies are inferred from the claim text.