Tough, high performance, addition-type thermoplastic polymers

Details Tough, high performance, addition-type thermoplastic polymers Tough, high performance, addition-type thermoplastic polymers

1989-11-13

1992-01-14

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526248, 526249, 525275, 525421, 525422, 525426, C08F 2606

Patent

active

050811983

ABSTRACT:
A tough, high performance polyimide is provided by reacting a triple bond conjugated with an aromatic ring in a bisethynyl compound with the active double bond in a compound containing a double bond activated toward the formation of a Diels-Adler type adduct, especially a bismaleimide, a biscitraconimide, or a benzoquinone, or mixtures thereof. Addition curing of this product produces a highly linear polymeric structure and heat treating the highly linear polymeric structure produces a thermally-stable aromatic addition-type thermoplastic polyimide, which finds utility in the preparation of molding compounds, adhesive compositions, and polymer matrix composites.

REFERENCES:
patent: 4365034 (1982-12-01), Grimes et al.
patent: 4451402 (1984-05-01), D'Alelis et al.

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