Cyclic phosphine oxides and their use as flame retardants in sty

Details Cyclic phosphine oxides and their use as flame retardants in sty Cyclic phosphine oxides and their use as flame retardants in sty

1984-04-26

1985-03-05

Kight, John

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524129, 525132, 568 12, C08K 553, C07D10502

Patent

active

045031789

ABSTRACT:
Cyclic phosphine oxides of the formula: ##STR1## wherein P is phosphorus, O is oxygen, A is an alkylene chain of 2 to 12 carbon atoms, Z is a polar group and R represents the carbon atoms in a phosphorus-containing ring formed by alkylating an ethylenically unsaturated cyclic hydrocarbon with phosphine.
The cyclic phosphine oxides are useful as flame retardants for styrene modified polyphenylene ether resins.

REFERENCES:
patent: 3257357 (1966-06-01), Stamatoff
patent: 3257358 (1966-06-01), Stamatoff
patent: 3306874 (1967-02-01), Hay
patent: 3306875 (1967-02-01), Hay
patent: 3400163 (1968-09-01), Mason et al.
patent: 3502730 (1970-03-01), Mason et al.
patent: 3639506 (1972-02-01), Haaf
patent: 3917560 (1975-11-01), Hoffman
patent: 4154775 (1979-05-01), Axelrod
patent: 4163760 (1979-08-01), Elsner et al.
patent: 4255324 (1981-03-01), Granzow et al.
patent: 4287119 (1981-09-01), Braksmayer et al.

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