Process for the polymerization of formaldehyde

Details Process for the polymerization of formaldehyde Process for the polymerization of formaldehyde

1980-11-19

1982-10-19

Griffin, Ronald W.

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

Synthetic resins

From aldehyde or derivative thereof as reactant

528270, C08L 7702

Patent

active

043551530

ABSTRACT:
Polyformaldehyde is prepared by polymerizing anhydrous monomeric formaldehyde in an organic, liquid and inert diluent which is a non-solvent for polyformaldehyde, in the presence of a catalyst of the formula: ##STR1## wherein A.sup.(-) is a lactamate group: ##STR2## in which PM is a linear polymethylene chain with from 3 to 13 carbon atoms, possibly substituted with one or more alkyl, cycloalkyl, aryl or alkylaryl radicals, and wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently are an alkyl, cycloalkyl, aryl or alkylaryl radical.

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