Method of producing an improved polyacetal polymer

C - Chemistry – Metallurgy – 08 – G

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402/104, 402/113

C08G 2/28 (2006.01) C08G 2/36 (2006.01)

Patent

CA 1228191

Abstract of the Disclosure When a crude polyacetal polymer obtained by polymerization or copolymerization and having as a principal component thereof connected oxymethylene radicals in a main chain is treated in a non-soluble liquid medium at temperatures higher than 80°C but lower than the melting point of the polymer and at heterogeneous equilibrium, contact treatment is carried out by moving the crude polymer and the non-soluble medium in opposite directions relative to each other.

462837

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