Process for improving the stability of etherified acetal...

Details Process for improving the stability of etherified acetal... Process for improving the stability of etherified acetal...

C - Chemistry, Metallurgy

08

J

402/121

C08J 3/00 (2006.01) C08G 2/28 (2006.01) C08G 2/36 (2006.01)

Patent

CA 1105188

ABSTRACT OF THE DISCLOSURE An etherified acetal homopolymer is stabilized by heat- -treatment in the molten state at a temperature of from 130° to 240°C for a period such as to ensure substantially complete degradation of the unstable chains, preferably in the presence of a polar liquid substance chosen from water, alcohols and mixtures thereof, and a basic compound.

267816

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