Method for producing oxymethylene copolymer

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United States of America Patent

PATENT NO 10954332
APP PUB NO 20200354500A1
SERIAL NO

16764479

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Abstract

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A method for producing an oxymethylene copolymer which gives molded articles that are inhibited from emitting formaldehyde and can be reduced in yellowness is provided. In producing an oxymethylene copolymer, an effective polymerization initiator amount is regulated to a value within a given range, the amount being calculated from the amount of perchloric acid or a derivative thereof contained in the polymerization initiator and the amount of triethanolamine contained in all the monomers comprising trioxane and comonomers, which are starting materials for the copolymer.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI GAS CHEMICAL COMPANY INCCHIYODA-KU TOKYO 100-8324

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Okada, Takuya Mie, JP 125 582
Sunaga, Daisuke Mie, JP 25 47

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