Water-soluble flame retarder and process for preparing the same

Details Water-soluble flame retarder and process for preparing the same Water-soluble flame retarder and process for preparing the same

1979-06-01

1980-12-16

Welsh, Maurice J.

Compositions: coating or plastic

Coating or plastic compositions

Contains fireproofing or biocidal agent

106 1815, 106 1816, 106 1817, 106 1818, C09D 518

Patent

active

042395429

ABSTRACT:
A water-soluble flame retarder comprising a condensed ammonium phosphate having an average degree of condensation of not more than 60 and a mixture of urea compounds produced from urea in the presence of a condensed ammonium phosphate, the mixture containing biuret and triuret. The flame retarder is advantageously prepared by reacting urea and phosphoric acid in a particular manner to by-produce particular amounts of biuret and triuret.

REFERENCES:
patent: 3513114 (1970-05-01), Hahn et al.
patent: 3723074 (1973-05-01), Sears et al.
patent: 3976752 (1976-08-01), Corver et al.
Chem. Abstr., vol. 79, 55553u, 1973.

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