Imido/hindered diamine copolymers

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From carboxylic acid or derivative thereof

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528 96, 528170, C08G 7310, C08G 7300, C08G 5900

Patent

active

051225905

ABSTRACT:
Novel heat-stable imido polymers, well adapted for the production of prepregs, are prepared by copolymerizing (a) at least one N,N'-bisimide with (b) at least one hindered aromatic diprimary diamine, (c) optionally, at least one unhalogenated comonomer other than a bisimide, (d) optionally, an imidazole compound, (e) at least one diamino-s-triazine, and (f) at least one chlorinated or brominated epoxy resin (f1), or N,N'-alkylenebistetrahalophthalimide (f2), or halogenated aromatic compound containing two (meth)-allyloxylated benzene nuclei (f3), or unhalogenated epoxy resin (f4).

REFERENCES:
patent: 4883858 (1989-11-01), Takemoto et al.
patent: 4886868 (1989-12-01), Kakoutz
patent: 4959443 (1990-09-01), Yamaya et al.

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