Process for producing oxymethylene copolymer and resinous composition
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United States of America Patent
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Jun 14, 1988
Grant Date -
N/A
app pub date -
Apr 27, 1987
filing date -
May 1, 1986
priority date (Note) -
Expired
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Abstract
A process for producing an oxymethylene copolymer, comprising the steps of polymerizing trioxane and cyclic ether in the presence of a boron trifluoride catalyst, adding a hindered amine compound to the polymer obtained by said polymerization, and stabilizing instable chain ends of the polymer. The oxymethylene copolymer thus obtained provides excellent heat resistance and superior mechanical properties.
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