Flameproofing substrate

Details Flameproofing substrate Flameproofing substrate

1979-08-10

1981-02-24

Hayes, Lorenzo B.

Stock material or miscellaneous articles

Composite

106 1814, 106 1818, 252 81, 428921, C09D 518

Patent

active

042528577

ABSTRACT:
Steel, wood and other structural elements and substrates are flameproofed by being coated with a composition comprising at least one metal salt of a phosphonocarboxylic or phosphonophosphonic acid of the formula ##STR1## in which R.sub.1 =a carboxy group, a phosphono group, an alkyl, alkoxy or alkylamino radical optionally substituted one or more times by oxygen and/or nitrogen and containing at least one substituent from the group comprising the substitutents --COOH and --PO.sub.3 H.sub.2, the alkyl group containing from 1 to 12 carbon atoms, preferably from 1 to 4 carbon atoms, and the sum of the number of carboxyl and phosphono groups being from 1 to 8, preferably from 1 to 4; or a hydroxyalkyl or aminoalkyl radical containing from 1 to 12 and preferably from 1 to 4 carbon atoms,

REFERENCES:
patent: 3471552 (1969-10-01), Budnick
patent: 3933427 (1976-01-01), Bohnsack et al.
patent: 3957858 (1976-05-01), Kerst
patent: 4020091 (1977-04-01), Budnick
patent: 4033896 (1977-07-01), Mitchell et al.
patent: 4077997 (1978-03-01), Blum et al.

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