Process for the production of foams based on aromatic isocyanate

Details Process for the production of foams based on aromatic isocyanate Process for the production of foams based on aromatic isocyanate

1988-12-19

1990-06-05

Kight, III, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521107, 521906, C08G 1814

Patent

active

049314815

ABSTRACT:
Combustion modified foams are produced by reacting an organic aromatic polyisocyanate with an isocyanate reactive compound in the presence of a blowing agent and Mg(OH).sub.2. The Mg(OH).sub.2 is generally used in a quantity of from 4-100 parts by weight based on the foam taken as 100 parts by weight. Mg(OH).sub.2 having a particle size of from 0.5-50 .mu.m is preferably used. The foams produced by the process are particularly useful in construction applications.

REFERENCES:
patent: 3737400 (1973-06-01), Kumasaka et al.
patent: 3778304 (1973-12-01), Thompson
patent: 3951885 (1976-04-01), Thompson
patent: 3963849 (1976-06-01), Thompson
patent: 4291129 (1981-09-01), Kennedy
patent: 4315078 (1982-02-01), Anorga
patent: 4458036 (1984-07-01), Fesman
Plastics Technology, Jul. 1985, p. 70 et seq.

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