Polyether resins and process for preparing the same

Details Polyether resins and process for preparing the same Polyether resins and process for preparing the same

1990-06-19

1991-09-24

Nielsen, Earl

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

Synthetic resins

From carboxylic acid or derivative thereof

528410, 528412, 528414, 560240, 560263, C08G 6522

Patent

active

050514920

ABSTRACT:
A process for the preparation of a polyether resin having an epoxy group content of less than 0.2 meq/g and containing or average n/3-0.5 to n/3+2.5 primary hydroxyl groups, the process comprising reacting a glycidyl ester of a C.sub.9-11 branched aliphatic acid with an aliphatic primary polyhydric alcohol having n primary hydroxyl groups and 5 to 16 carbon atoms, n having a value of 3 to 6, in the presence of an etherification catalyst selected from a tin, zinc or iron compound.

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patent: 3117099 (1964-01-01), Proops et al.
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patent: 3242103 (1966-03-01), Uelzmann
patent: 3284383 (1966-11-01), Proops
patent: 4232135 (1980-11-01), Bentley et al.
patent: 4282387 (1981-04-01), Olstowski et al.
patent: 4326047 (1982-04-01), Yates
patent: 4755583 (1988-07-01), Scholten et al.

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