Process for preparing polyformals in the presence of an organic

Details Process for preparing polyformals in the presence of an organic Process for preparing polyformals in the presence of an organic

1976-12-20

1978-05-23

Rzucidlo, Eugene C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 458A, 260 67FP, C08G 400

Patent

active

040909905

ABSTRACT:
An improved process for preparing polyformals is provided which comprises condensing an aliphatic diol, in which the hydroxyl groups are separated by at least four carbon atoms, with an essentially stoichiometric amount of formaldehyde in the presence of a Bronsted acid catalyst and contacting the condensation product with an organic epoxide in an amount sufficient to react with the residue of said catalyst.

REFERENCES:
patent: 2485160 (1949-10-01), Niederhauser et al.
patent: 2786067 (1957-03-01), Frostick, Jr. et al.
patent: 3055871 (1962-09-01), Heffler et al.
patent: 3183211 (1965-05-01), Brinker et al.
patent: 3210318 (1965-10-01), Dolce et al.
patent: 3271369 (1966-09-01), Kern et al.
patent: 3419531 (1968-12-01), Trischler

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