Process for preparing high molecular weight compounds

Details Process for preparing high molecular weight compounds Process for preparing high molecular weight compounds

1983-03-17

1985-06-04

Kight, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528301, 528405, C08G 6342, C08G 6366, C08G 5900

Patent

active

045215863

ABSTRACT:
A process for preparing polyoxyalkylene high molecular weight compounds having an average molecular weight of more than 20,000 and being soluble in solvents and moldable by addition-polymerizing ethylene oxide alone or a mixture of alkylene oxides containing ethylene oxide to an organic compound having at least 2 active hydrogen groups to produce a polyhydroxyl compound having an average molecular weight of not less than 1,000, and esterifying the polyhydroxyl compound with a polycarboxylic acid, its anhydride or its lower alkyl ester.

REFERENCES:
patent: 2687430 (1951-08-01), Snow et al.
patent: 3293193 (1966-12-01), Krahler et al.
patent: 3723390 (1973-03-01), Carpenter et al.
J. Furukawa et al., Polymerization of Aldehydes and Oxides, Interscience Publishers, pp. 130-141, 1963.

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