.alpha.,.beta.-UNSATURATED SCHIFF-BASE CHAIN EXTENSION REACTIONS

Details .alpha.,.beta.-UNSATURATED SCHIFF-BASE CHAIN EXTENSION REACTIONS .alpha.,.beta.-UNSATURATED SCHIFF-BASE CHAIN EXTENSION REACTIONS

1973-12-26

1976-09-07

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 304N, 260 306R, 260 308DS, 260 314R, 260 324, 260 326N, 260 332R, 260 334R, 260 338R, 260474A, 260 47CP, 260 49, 260 63N, 260 65, 260 78TF, 260 78UA, 260248CS, 2602495, 260250Q, 260304R, 260307D, 2603092, 260326C, 260326S, 260326N, 260557R, 260557B, 260558S, 260559R, 260559T, C08G 7306, C08G 7312, C08G 7314

Patent

active

039793508

ABSTRACT:
This invention provides compositions containing thermally stable prepolymers with azadiene end groups, and compositions containing such prepolymers in combination with dienophiles and the chain-extended and cross-linked polymers obtained from these systems.
The combination of such prepolymers with dienophiles facilitates processing of the prepolymer resin by lowering the softening and curing temperatures under processing conditions.

REFERENCES:
patent: 3843602 (1974-10-01), Kruh
patent: 3845018 (1974-10-01), Bilow et al.

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