Process for producing polyacetal copolymers

Details Process for producing polyacetal copolymers Process for producing polyacetal copolymers

1980-11-04

1983-08-16

Briggs, Sr., Wilbert J.

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

Synthetic resins

From aldehyde or derivative thereof as reactant

525405, 525414, 528232, 528236, 528237, 528230, 528238, 528239, 528240, 528242, 528243, 528249, 528250, C08G 218, C08G 222, C08G 224

Patent

active

043992722

ABSTRACT:
A process for producing a polyacetal copolymer, which comprises copolymerizing formaldehyde and a compound selected from the group consisting of alkylene oxides, poly(alkylene oxides), cyclic formals and poly (cyclic formals) in the presence of a Lewis acid and an anionic polymerization catalyst with the exception of metal chelate compounds.

REFERENCES:
patent: 3278635 (1966-10-01), Bastian
patent: 3419530 (1968-12-01), Tiessens et al.
patent: 3803094 (1974-04-01), Ishii et al.
patent: 3862090 (1975-01-01), Munoz
patent: 4173551 (1979-11-01), Crivello
N. Brown, "Polyaldehydes", pp. 11 and 12, 1967.

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