Melamine preparation and stable dispersion of melamine in polyet

Details Melamine preparation and stable dispersion of melamine in polyet Melamine preparation and stable dispersion of melamine in polyet

1990-03-22

1992-02-11

Welsh, Maurice J.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

25218217, 25218223, 25218224, 25218227, 252308, 252609, 252610, 252611, 521128, 521130, 521170, 521174, 521189, 521903, 521906, C08G 1814, C08G 1848

Patent

active

050873849

ABSTRACT:
A melamine preparation consisting of 80 to 99.9% by weight of melamine having an average particle size of 0.01 to 0.1 mm and 0.1 to 20% by weight of urea, thiourea, biuret or urea or thiourea substituted by lower alkyl groups and a stable dispersion in polyether polyols prepared therefrom, which is used for the preparation of flame-resistant polyurethane foams.

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K. E. J. Barrett, "Dispersion Polymerisation in Organic Media ", FIGS. 6, 2, John Wiley, London 1975.
M. Genz, O. M. Grace, S. Gagnon, PRI-Urethane Group International Symposium, "New Flame Resistant Flexible Foams" (Oct. 14, 1987).

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