Process for the preparation of acetal polymer or copolymer

Details Process for the preparation of acetal polymer or copolymer Process for the preparation of acetal polymer or copolymer

1988-12-12

1990-09-11

Kight, III, John

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

Synthetic resins

From aldehyde or derivative thereof as reactant

528234, 528235, 528237, 528241, 528242, 528245, 528249, 528250, 528270, 528392, C08G 210

Patent

active

049564455

ABSTRACT:
Acetal polymer having a high degree of polymerization is obtained using a catalyst of a heteropoly acid or an acid salt thereof in a small amount. The catalyst is represented by formula:

REFERENCES:
patent: 4568775 (1986-02-01), Aoshima et al.
patent: 4658065 (1987-04-01), Aoshima et al.
patent: 4792627 (1988-12-01), Aoshima et al.

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