Synthomer (uk) Limited

Synthomer Limited

Jon Batty

Peter Shaw

Virginie Chabrol

Monika Farrell

Lena Sambe

Christopher Davis

A method of making a branched polymer comprising (C&#x2550;C)&#x2014;(C&#x2550;C)&#x2014;CO groups is provided. The method comprises: (i) Providing, in admixture, at least one monofunctional monomer comprising one polymerisable carbon-carbon double bond per monomer, at least one multifunctional monomer comprising at least two polymerisable carbon-carbon double bonds per monomer, at least one chain transfer agent comprising a carbonyl group; (ii) Forming a polymer from the mixture; and (iii) Hydrolysing the polymer. A branched polymer is further provided.

Method of making a branched polymer, a branched polymer and uses of such a polymer

Use of a polymer as a secondary suspending agent in a suspension polymerization reaction is provided. The polymer comprising (i) residues of at least one ester-containing monomer, the ester-containing monomer (s) comprising one polymerizable carbon-carbon double bond per monomer and an ester group, and (ii) residues of at least one monomer comprising a sulfonate, sulfonic acid, sulfonic ester, sulfonamide or sulfonyl halide group the monomer (s) comprising a sulfonate, sulfonic acid, sulfonic ester group, sulfonamide or sulfonyl halide group comprising one polymerizable carbon-carbon double bond per monomer and a sulfonate, sulfonic acid, sulfonic ester, sulfonamide or sulfonyl halide group, the polymer optionally being partially hydrolyzed such that a proportion of said ester groups form alcohol groups, the degree of hydrolysis of the polymer being from 0 to 30 mol %.

Secondary suspending agent for suspension polymerisation reaction

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Harlow, United Kingdom

Jon Batty