Copolymers derived from 1,3 dioxepins and maleic anhydride or ma

Details Copolymers derived from 1,3 dioxepins and maleic anhydride or ma Copolymers derived from 1,3 dioxepins and maleic anhydride or ma

1981-04-15

1983-05-17

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

525113, 525114, 526262, C08F 2608, C08F 2400

Patent

active

043840930

ABSTRACT:
Copolymers and terpolymers formed by reacting either 4,7-dihydro-1,3-dioxepins or 6,7-dihydro-1,3-dioxepins with maleic anhydride and/or a maleimide. The copolymers are characterized as linear, low molecular weight, water soluble alternating copolymers. These copolymers are useful as a water soluble polymer, as epoxy resin modifies and curing agents. The copolymers formed from 4,7-dihydro-1,3-dioxepins and maleic anhydride can be rearranged to form a poly (.gamma.-crotonlactone) having the following general formula: ##STR1##

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Chem. Heterocycl. Compounds, "Dioxepins and Trioxepins", C. E. Pawloski, 1972, pp. 319-411.

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