Phosphonic acid salts as flame retardants for polyurethanes and

Details Phosphonic acid salts as flame retardants for polyurethanes and Phosphonic acid salts as flame retardants for polyurethanes and

1985-01-14

1987-04-07

Cockeram, Herbert S.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

524130, 524132, 521902, 528 51, 2605024R, 26050121, 26050115, 558207, 546304, 546347, C08G 1814, C08K 553

Patent

active

046562001

ABSTRACT:
The invention provides salts of methyl phosphonic acid and its mono- or di-methyl ester with certain amines. The salts are useful flame retardant additives for polyurethanes and polyisocyanurates.

REFERENCES:
patent: 4264516 (1981-04-01), Hiestand
patent: 4430453 (1984-02-01), Seifert et al.
patent: 4452849 (1984-06-01), Nachbur et al.
patent: 4487800 (1984-12-01), Nachbur et al.

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