Phosphorus-containing nitrogen compounds as flame retardants and

Details Phosphorus-containing nitrogen compounds as flame retardants and Phosphorus-containing nitrogen compounds as flame retardants and

1987-06-18

1988-05-03

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521128, 521129, 524110, 524707, 558 82, 558 87, C08G 1814

Patent

active

047420880

ABSTRACT:
Nitrogen-containing 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide derivatives are prepared by condensation of the oxide with amines and aldehydes or ketones. They may be used as additive flame retardants or incorporated into synthetic resins such as polyesters and polyurethane foams, by copolymerization to form flame-retardant resins. They may also be used as antioxidants, germicides or herbicides.

REFERENCES:
patent: 4113795 (1978-09-01), Izawa et al.

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