Process for preparing hydroxy-functionalized polyesters

Details Process for preparing hydroxy-functionalized polyesters Process for preparing hydroxy-functionalized polyesters

C - Chemistry, Metallurgy

08

G

C08G 63/42 (2006.01) C08G 63/668 (2006.01)

Patent

CA 2328217

A process for preparing a thermoplastic hydroxy-functionalized polyester comprises contacting a dicarboxylic acid or a mixture of dicarboxylic acids with a diepoxide in a given solvent in the presence of an end-capping agent and a catalyst under conditions sufficient to form the hydroxy-functionalized polyesters or polyethers.

L'invention concerne un procédé de préparation d'un polyester à fonction hydroxy renfermant un acide dicarboxylique ou un mélange d'acides dicarboxyliques en contact avec un diepoxyde dans un solvant donné en présence d'un agent de coiffage d'extrémité et d'un catalyseur dans des conditions suffisantes pour former les polyesters ou polyéthers à fonction hydroxy.

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