Process for producing oxymethylene copolymer and resinous compos

Details Process for producing oxymethylene copolymer and resinous compos Process for producing oxymethylene copolymer and resinous compos

1987-04-27

1988-06-14

Phynes, Lucille M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525405, 528230, 528269, 528270, C08G 228

Patent

active

047512725

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.

REFERENCES:
patent: 2920059 (1960-01-01), MacDonald et al.
patent: 3524832 (1970-08-01), Green
patent: 3626024 (1971-12-01), Gutweiler et al.
patent: 4087411 (1978-05-01), Sugio et al.

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