Flexible bismaleimides

Details Flexible bismaleimides Flexible bismaleimides

1987-06-30

1988-05-17

Brust, Joseph Paul

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

526262, C07D40312

Patent

active

047451971

ABSTRACT:
Bismaleimides having the general formula ##STR1## in which n is a whole number between 5 and 70 and --X-- is --O-- or --NH-- are prepared through the reaction of the corresponding amino-terminated polyoxybutylenes with 2 moles of maleic anhydride. They are suited as toughening agents in high grade reactive resins.

REFERENCES:
patent: 2850351 (1958-09-01), Moore et al.
patent: 3236895 (1966-02-01), Lee et al.
patent: 3654370 (1972-04-01), Yeakey
patent: 3855239 (1974-12-01), Crivello
patent: 3887582 (1975-06-01), Halub et al.
patent: 3920768 (1975-11-01), Kwiatkowski
patent: 3966531 (1976-06-01), Bargain

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