Alkyl-containing monomers in cross-linkable polyimide compositio

Details Alkyl-containing monomers in cross-linkable polyimide compositio Alkyl-containing monomers in cross-linkable polyimide compositio

1985-07-12

1987-06-23

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528289, C08F 806

Patent

active

046753664

ABSTRACT:
An improved method for preparing cross-linked polymers is disclosed, in which at least one alkyl or alicyclic substituent attached to an aromatic radical in the polymer acts as a functional site for oxidative cross-linking. The polymer may be extruded or solvent-deposited directly onto electrical conductors prior to cross-linking. The polymer film may then be cross-linked when exposed to an oxidizing agent and heated at a temperature within the range from the polymer's glass transition temperature to just below its degradation temperature.

REFERENCES:
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patent: 4157996 (1979-06-01), Boldebuck et al.
patent: 4433131 (1984-02-01), Bolon et al.
patent: 4574144 (1986-03-01), Yates, III et al.

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