Bisimide compositions

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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526310, C08F22240, C08F22042

Patent

active

054342325

ABSTRACT:
A mixed bisimide having the formula: ##STR1## wherein D, A and Z are as defined in the specification, produced by reacting a diamine with an ethylenically unsaturated dicarboxylic acid anhydride and a halogenated compound containing an anhydride group and aromatic or bicyclo groups to form a bisamic acid composition and then dehydrating such composition to ring close the end groups. The halogenated end groups (Z) of the mixed bisimide component render the bisimide reaction product of the ring closing reaction flame retardant.

REFERENCES:
patent: 4125535 (1978-11-01), Wolford
patent: 4130600 (1978-12-01), Zahir et al.
patent: 4876325 (1989-10-01), Olson et al.
patent: 4883843 (1989-11-01), Taniuchi et al.
patent: 4985478 (1991-01-01), Kameyama et al.
patent: 5004775 (1991-04-01), Olson et al.
patent: 5034503 (1991-07-01), Camberlin

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