Curable polyether compositions

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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C08F 2240

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active

047757299

ABSTRACT:
Pentadienyl ether terminated polyethers and maleimidomethyl carbonate terated polyethers are selectively combined via a Diels-Alder reaction at room temperature. The resulting aliphatic copolyethers are characterized by having at least two chemically combined N(1)-oxycarbonyloxymethyl-4-oxymethyltetrahydrophthalimido groups interposed between polyether radicals within the copolymer chain. The aliphatic polyether precursors terminated with pentadienyl ether groups are synthesized by reacting an aliphatic hydroxy terminated polyether with a metal alkoxide to form at least the bis alkoxide derivative. The alkoxide derivative is then reacted with a halogen substituted pentadiene yielding the bis or tris pentadiene ether terminated polyether for use in the copolymer synthesis.

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patent: 3959391 (1976-05-01), Allain
patent: 4124657 (1978-11-01), Martin et al.
patent: 4156761 (1979-05-01), Martin et al.
patent: 4215046 (1980-07-01), Martin et al.

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