Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1993-05-27
1994-08-16
Krass, Frederick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
428413, 525423, 525502, 525530, 528 94, 528 96, 528104, 528109, 528110, 528111, 528113, 528117, 528120, 528321, 528322, C08G 5940, C08G 6500
Patent
active
053387821
ABSTRACT:
A composition comprising a 1,2-dialkylidenecyclobutane such as 1,2-dimethylenecyclobutane, a polyimide such as a bismaleimide, an epoxy resin and a curing agent for the epoxy resin can be thermally cured to a tough polymer blend having a high glass transition temperature.
REFERENCES:
patent: 3637901 (1972-01-01), Bargain et al.
patent: 3730948 (1973-05-01), Akiyama et al.
patent: 4510272 (1985-04-01), Loszewski
patent: 4730030 (1988-03-01), Hahn et al.
patent: 4927907 (1990-05-01), Corley
patent: 5147953 (1992-09-01), Corley
Krass Frederick
Shell Oil Company
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