Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1991-07-22
1992-09-15
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C08F 1232
Patent
active
051479532
ABSTRACT:
A composition comprising a 1,2-dialkylidenecyclobutane such as 1,2-dimethylenecyclobutane and a polyimide such as a bismaleimide can be thermally cured to a tough copolymer having a high glass transition temperature and low water absorbance.
REFERENCES:
patent: 4645814 (1987-02-01), Grabbs
patent: 4730030 (1988-03-01), Hahn et al.
patent: 4927907 (1990-05-01), Corley
patent: 4973636 (1990-11-01), Corley
Godt et al., "Double-Stranded Molecules", Angew. Chem. 28, 1680-1682 (1989).
Michl Paul R.
Shell Oil Company
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