Anhydride-hardened epoxy resin with polybutadiene-maleic anhydri

Details Anhydride-hardened epoxy resin with polybutadiene-maleic anhydri Anhydride-hardened epoxy resin with polybutadiene-maleic anhydri

1995-10-06

1997-05-13

Sellers, Robert E.

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

Synthetic resins

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

525114, C08L 6300

Patent

active

056293798

ABSTRACT:
Toughened epoxy resin systems having high temperature capabilities of from 250.degree. to 350.degree. C. prepared by carefully curing blends of epoxy resins having an average epoxy functionality greater than two with bicycloalkene dicarboxylic anhydride hardener, maleinized polybutadiene toughening agent, supplemental hardener selected from the group consisting of aromatic tetracarboxylic dianhydrides and bismaelimides of aromatic diamines, and epoxy/anhydride accelerator.

REFERENCES:
patent: 4028432 (1977-06-01), Dawans et al.
patent: 4900848 (1990-02-01), Saito et al.
patent: 5091498 (1992-02-01), Arduengo, III et al.
patent: 5324767 (1994-06-01), Koyama et al.

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