Stabilized lactam polymerization solutions

Details Stabilized lactam polymerization solutions Stabilized lactam polymerization solutions

1986-03-26

1987-06-09

Jacobs, Lewis T.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524714, 524720, 524723, 524728, 525432, C08K 521

Patent

active

046720855

ABSTRACT:
Unsaturated oligomers and solutions thereof are stabilized with a trisubstituted urea to provide improved storage stability. The stabilized unsaturated oligomer solutions are useful in lactam polymerization processes which yield nylon block copolymers containing unsaturated oligomer segments. The unsaturated oligomers disclosed herein have at least 4 carbons and have pendant thereto at least one hydroxy, amine, epoxy, acyllactam, or acyllactam precursor group.

REFERENCES:
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patent: 3321214 (1967-05-01), Baumann
patent: 3654214 (1972-04-01), Beckman
patent: 3817850 (1974-06-01), Feinberg
patent: 3925306 (1975-12-01), Schlichting et al.
patent: 3935161 (1976-01-01), Schlichting et al.
patent: 4240954 (1980-12-01), Stretanski
patent: 4581419 (1986-04-01), Gabbert et al.

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