Stabilized lactam polymerization solutions

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...

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

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active

046940391

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:
patent: 3086962 (1961-04-01), Mottus et al.
patent: 3190763 (1963-12-01), Schleede et al.
patent: 3211692 (1963-01-01), Hopkins et al.
patent: 3321433 (1967-05-01), Baumann
patent: 3547848 (1967-11-01), Marsh et al.
patent: 3622534 (1971-11-01), Timmons et al.
patent: 3654214 (1972-03-01), Beckman
patent: 3817850 (1974-06-01), Feinberg
patent: 3925306 (1975-12-01), Schlichting et al.
patent: 3935161 (1976-01-01), Schlichting et al.
patent: 4094687 (1977-03-01), Lawton
patent: 4111703 (1977-03-01), Lawton
patent: 4157336 (1977-01-01), Jordan
patent: 4168260 (1978-01-01), Wiezer et al.
patent: 4240954 (1980-12-01), Stretanski
patent: 4252705 (1980-12-01), Brecker
patent: 4339555 (1980-10-01), Ohmura et al.
patent: 4485213 (1983-03-01), Matsuo et al.
patent: 4581419 (1986-04-01), Gabbert et al.
Mottus et al., Initiated Polymerization of Caprolactam: Molecular Weight Control, 1968, pp. 390-397, Polymer Preprints 9 (No. 1).
Hotten, Benzylureas As Antioxidants for Hydrocarbons, pp. 243-246, I & EC Product Research and Dev.
Derwent Abstract; 51-033188, 3/76, Japan.
Derwent Abstract; 631471, 8/82, Switzerland.
Derwent Abstract; 60-028431, 2/85, Japan.
Derwent Abstract; 52-057294, 5/77, Japan.
Derwent Abstract; 51-068697, 6/76, Japan.
Derwent Abstract; 51-060293, 5/76, Japan.
Derwent Abstract; 54-039493, 3/79, Japan.
Derwent Abstract; 135233, European Patent, 3/85.
Derwent Abstract; 58-119812, 7/83, Japan.
Derwent Abstract; 136846, 8/79, Ger. Dem. Rep.
Derwent Abstract; 60-040117, 3/85, Japan.

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