Fire retardant composition

Details Fire retardant composition Fire retardant composition

1983-10-12

1986-01-21

Kight, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

524130, 524141, 524143, 528 65, 528 72, 252609, C08K 552, C08K 553, C08G 1808

Patent

active

045658331

ABSTRACT:
A fire retardant composition for rigid polyurethanes or polyisocyanurates comprises dimethyl methyl phosphonate, diethyl ethyl phosphonate or a mixture thereof and a triaryl phosphate, a trialkyl phosphate or an alkyl/aryl phosphate in a ratio by weight of 5:95 to 95:5. The composition may also contain a halogen-containing flame retardant compound.

REFERENCES:
patent: 3400085 (1968-09-01), Kujawa et al.
patent: 4165411 (1979-08-01), Marans et al.
patent: 4407981 (1983-10-01), Aaronson
patent: 4409341 (1983-10-01), Hira et al.

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