The Dow Chemical Company

Violete L Stevens

Arthur R Sexton

Frederick P Corson

George J Atchison

Chester E Pawloski

Sally P Ginter

Gerald K McEwen

Clayton W Hoornstra

Harold O Seeburger

James W Lalk

Ronald D Deibel

Fred P Corson

Ralph G Beattie

Polyhydroxyl polyether compounds containing at least one monomeric unit each of the formulae: ##STR1## are disclosed. Polymeric condensation resins are prepared by allowing the polyhydroxyl polyethers to react with polyfunctional chain-forming compounds containing functional groups reactive with the hydroxyl groups of polyhydroxyl polyethers. The polyhydroxyl polyether compounds enhance the flame-retardant properties of polymeric condensation resins such as polyurethanes.

Polyhydroxyl polyether compounds containing phosphorus

Polyhydroxyl polyether compounds containing phosphorus and polymeric

Polyether resins of the formula XA.sub.m wherein A is of the formula ##STR1## and X, R, R' and R' are specified substituents are disclosed.

Curable polyether resins

A method for preparing vinyl ester resins comprises reacting mono-, di- or polyhydroxy functional phenols with a tertiary alkyl glycidyl ether in the presence of a catalyst, e.g., triphenyl phosphine, followed by dealkylating and esterifying the adduct with an olefinically unsaturated aliphatic acid, e.g., acrylic acid, in the presence of a strong acidic catalyst, e.g., p-toluene sulfonic acid.

Method for preparing vinyl ester resins

Effective radiation curable flame retardant compositions include compounds of the formula: ##STR1## wherein A is hydrogen or methyl; A' is hydrogen, methyl, phenyl or halogen; n is 1 or 1.5 and when n is 1, B is hydrogen or methyl and when n is 1.5, B is hydrogen; Y is oxygen or sulfur; R and R' are hydrogen, methyl, chloromethyl or bromomethyl.

Radiation curable flame retardant compositions containing

Effective reactive flame retardants are novel compounds of the formula: ##STR1## wherein A is hydrogen or methyl; A' is hydrogen, methyl, phenyl or halogen; n is 1 or 1.5 and when n is 1, B is hydrogen or methyl and when n is 1.5, B is hydrogen; Y is oxygen or sulfur; R and R' are hydrogen, methyl, chloromethyl or bromomethyl.

2,2-Dialkylpropane-1,3-diolbis[bis(acryloyloxyalkyl)phosphates]

A negative-working, reversibly gelled composition is disclosed, suitable for use as the photocurable component in a blank for preparation of an article in relief, such as a printing plate. Uncured portions of the composition are removed with an aqueous solution following imagewise modulated exposure of such a blank to actinic radiation. The composition comprises a first organic polymer bearing per molecule, at least one ethylenically unsaturated group which is polymerizable by a free radical source; and a second organic polymer bearing per molecule, at least two Z groups, Z being a primary hydroxyl or mercapto group, with the proviso that when said first organic polymer bears at least two Z groups per molecule, said second organic polymer may be omitted; said Z groups being reacted by contact with a dialdehyde to produce the reversibly gelled composition.

Gelled photopolymer composition for article in relief

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

A negative-working, reversibly gelled composition is disclosed, suitable for use as the photocurable component in a blank for preparation of an article in relief, such as a printing plate. Uncured portions of the composition are removed with an aqueous solution following imagewise modulated exposure of such a blank to actinic radiation. The composition comprises a first organic polymer bearing per molecule, at least one ethylenically unsaturated group which is polymerizable by a free radical source; and a second organic polymer bearing per molecule, at least two Z groups, Z being a primary hydroxyl or a mercapto group, with the proviso that when said first organic polymer bears at least two Z groups per molecule, said second organic polymer may be omitted; said Z groups being reacted by contact with a dialdehyde to produce the reversibly gelled composition.

Gelled photopolymer composition and methods of making them

Linear copolymers of glycidol

Polymercaptocarboxylic esters of polyglycidols comprising units represented by the formula ##STR1## are disclosed as well as a method for utilizing the same to prepare cross-linked polymeric compositions.

Growing community of inventors

Midland, MI, United States of America

Violete L Stevens