Polymeric phosphonates of a cyclic phosphite and epoxide

Details Polymeric phosphonates of a cyclic phosphite and epoxide Polymeric phosphonates of a cyclic phosphite and epoxide

1980-02-27

1982-02-16

Nielsen, Earl A.

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

Synthetic resins

From phosphorus-containing reactant

260929, 260969, 528 89, 528 90, 528 91, 528 92, 528 72, 528108, C08G 7904

Patent

active

043160069

ABSTRACT:
Phosphorus containing polymers are prepared by copolymerizing a cyclic phosphite and an epoxide in the presence of an acid catalyst. The resulting polymer can be incorporated within a thermoplastic or thermosettable resin to increase the flame resistivity thereof.

REFERENCES:
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patent: 3890411 (1975-06-01), Shim
patent: 3956431 (1976-05-01), Honig et al.
patent: 3989652 (1976-11-01), Shim
patent: 4087403 (1978-05-01), Moedritzer

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