Advancement catalysts for epoxy resins

Details Advancement catalysts for epoxy resins Advancement catalysts for epoxy resins

1982-04-05

1983-06-21

Nielsen, Earl A.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

252182, 528104, C08G 5962, C08G 5968

Patent

active

043895204

ABSTRACT:
Advancement catalysts selected from the group consisting of formylmethylenetriphenylphosphorane and its phosphonium halide salt precursors, e.g., formylmethyltriphenylphosphonium chloride, confer high reactivity and selectivity on epoxy resin advancement reactions. Advanced epoxy resins are useful in the perparation of coatings of high quality.

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patent: 4048141 (1977-09-01), Doorakian et al.
patent: 4131633 (1978-12-01), Doorakian et al.
patent: 4132706 (1979-01-01), Doorakian et al.
patent: 4302574 (1981-11-01), Doorakian et al.
patent: 4352918 (1982-10-01), Whiteside et al.

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