Process for preparing a stabilized oxymethylene copolymer

Details Process for preparing a stabilized oxymethylene copolymer Process for preparing a stabilized oxymethylene copolymer

C - Chemistry, Metallurgy

08

G

402/103, 400/735

C08G 2/30 (2006.01) C08G 2/36 (2006.01) C08K 5/098 (2006.01)

Patent

CA 1057446

Abstract of the disclosure Oxymethylene copolymer having heat and hydrolysis resis- tant terminal groups are prepared by heating the polymers present in a liquid phase, whereby a thermal degradation of the unstable terminal groups takes place. The degradation is advantageously effected in the presence of a calcium or magnesium salt of an aliphatic carboxylic acid of low mole- cular weight. The oxymethylene copolymers are suitable as engineering plastic for preparing semi-finished products and finished products.

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