Process for the polymerization of formaldehyde

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

1974-12-16

1976-09-07

Tillman, Murray

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 67FP, C08L 7702

Patent

active

039794806

ABSTRACT:
Polyformaldehyde is prepared by feeding anhydrous formaldehyde to a reaction medium containing a liquid organic diluent non-solvent for the polyformaldehyde and non-reactive towards the other constituents of the reaction medium, and containing in a dispersed form a copolymer A-B, wherein
A is a polylactonic block of recurring units ##EQU1## B is a polylactamic block of recurring units ##EQU2## wherein PM.sub.1 and PM.sub.2 are linear polymethylene chains having from 2 to 13 and 3 to 13 carbon atoms, respectively.

REFERENCES:
patent: 3555514 (1967-11-01), Van De Walle
patent: 3592873 (1971-07-01), Ishida

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