The Dow Chemical Company

Arthur R Sexton

Violete L Stevens

Frederick P Corson

David L Wolfe

James W Lalk

Ronald D Deibel

Fred P Corson

Homopolymers and copolymers of glycidyl esters are made by reacting the acids to be esterified with the corresponding polymer of tert.-alkyl glycidyl ether under substantially anhydrous conditions and in the presence of a strong acid catalyst, preferably a sulfonic acid. The reaction proceeds satisfactorily at about 100.degree.14 150.degree. C with displacement of the tert.-alkyl group by the acyl group of the acid and evolution of tert.-olefin. By use of the appropriate proportion of reactant acid and/or appropriate reaction time, any desired proportion of the glycidyl groups can be esterified.

Process for making polyglycidyl esters

Linear copolymers of glycidol, glycidyl esters of unsaturated fatty acids and, optionally, alkylene oxides, are made by the reaction of an unsaturated fatty acid with a polymer or copolymer of tert.-butyl glycidyl ether in the presence of an acid catalyst. The products are polymerizable and copolymerizable with vinyl monomers and are useful as curable resins.

Curable mixtures and cured resins made from linear polymers of glycidol

Antistatic compositions for topical application to substrates, which comprise

Permanent topical antistats

New polymers are copolymers of glycidol, glycidyl esters of fatty acids, and, optionally, alkylene oxides. They are conveniently made by the reaction of a fatty acid with a polymer or copolymer of tert.-butyl glycidyl ether in the presence of an acid catalyst. They are useful as coatings, lubricants, plasticizers, textile antistatic agents and surfactants.

Copolymers of glycidol and glycidyl esters

In a process for removing --R groups, where --R is tertiary butyl or tertiary amyl, from a polymer containing the monomeric unit represented by the formula ##STR1## by contacting the polymer with a sulfonic acid, the improvement of contacting under essentially anhydrous conditions.

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Midland, MI, United States of America

Arthur R Sexton