Preparation of urethane elastomers from epoxy resin, polyols and

Details Preparation of urethane elastomers from epoxy resin, polyols and Preparation of urethane elastomers from epoxy resin, polyols and

1977-05-04

1978-10-03

Welsh, M. J.

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 51, 528 53, C08G 1818

Patent

active

041183738

ABSTRACT:
Elastomers are prepared from a mixture comprising a 1600 equivalent weight polyether polyol such as a glycerine initiated polyoxypropylene glycol end-capped with ethylene oxide, a diol such as diethylene glycol, a liquid polyepoxide such as the diglycidyl ether of bisphenol A and a catalyst mixture containing a quaternary ammonium or phosphonium salt and an organometal salt of the metal tin or lead such as tetrabutyl ammonium bromide and lead octoate.

REFERENCES:
patent: 3020262 (1962-02-01), Speranya
patent: 3470121 (1969-09-01), Cobbledick
patent: 3509104 (1970-04-01), Fuchsman et al.
patent: 3702839 (1972-11-01), Glasgow et al.

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