Phosphonate flame retardant mixture and resinous foams containin

Details Phosphonate flame retardant mixture and resinous foams containin Phosphonate flame retardant mixture and resinous foams containin

1978-02-02

1979-03-13

Cockeram, H.S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

8116P, 106 1505, 252 81, 260 457P, 521108, 521906, C09K 328, C08K 553, C08G 1814

Patent

active

041443870

ABSTRACT:
There is provided a flame retardant mixture containing between about one weight percent and about 75 weight percent of a compound having the structure: ##STR1## AND BETWEEN ABOUT 99 WEIGHT PERCENT AND ABOUT 25 WEIGHT PERCENT OF A HIGH BOILING PHOSPHONATE COMPRISING PREDOMINANTLY A COMPOUND HAVING THE STRUCTURE: ##STR2## There are also provided polymers, particulary rigid and flexible urethane foams, containing between about two weight percent and about 30 weight percent of the flame retardant mixture.

REFERENCES:
patent: 3321330 (1967-05-01), Mohney
patent: 3412070 (1968-11-01), Jakob et al.
patent: 3772222 (1973-11-01), Steward et al.
patent: 4086303 (1978-04-01), Weil

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