TBEA linked epoxy-urethanes

Details TBEA linked epoxy-urethanes TBEA linked epoxy-urethanes

1986-03-21

1987-11-10

Welsh, Maurice 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...

528123, 528369, C08G 1810

Patent

active

047058412

ABSTRACT:
Novel epoxy-urethane resins are produced by the reaction of a urethane-alkanolamine adduct with an epoxy resin. The urethane-alkanolamine adduct is prepared by reacting a urethane prepolymer with a sterically hindered N-substituted ethanolamine such as t-butyl ethanolamine. The epoxy-urethane resin can be cured using ordinary epoxy curing agents for application as waterproofing membranes, joint sealants, and adhesives. Two-part resin systems comprising epoxy-urethane resins of the invention as the first part, and an appropriate curing agent as the second part avoid disadvantages characteristic of resin mixtures that rely on urethane cure chemistry.

REFERENCES:
patent: 2830038 (1958-04-01), Pattison
patent: 3020262 (1962-02-01), Speranza
patent: 3445436 (1969-05-01), Lake et al.
patent: 3525779 (1970-08-01), Hawkins
patent: 3763079 (1973-10-01), Fryd
patent: 3931116 (1976-01-01), Bernstein et al.
patent: 4111917 (1978-09-01), Larsen
patent: 4143009 (1979-03-01), Dewey
patent: 4267288 (1981-05-01), Burkhart et al.
patent: 4282123 (1981-08-01), Ilaria
patent: 4520185 (1985-05-01), Tosh
Chemical Abstracts, (1978) 88:192924r.

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