Process for fireproofing organic fibre material using phosphonic

Details Process for fireproofing organic fibre material using phosphonic Process for fireproofing organic fibre material using phosphonic

1983-08-29

1984-12-11

Page, Thurman K.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

252 88, 26050114, 4273899, 427392, 4273933, 428260, 428264, 428272, 428276, B32B 700, B05D 302

Patent

active

044878001

ABSTRACT:
Novel phosphonic acid salts produced from ethane- or methanephosphonic acid, dicyandiamide and/or guanidine and optionally ammonia and corresponding to the formula ##STR1## wherein n, p, q, t and y are each 1 or 2, are particularly suitable for fireproofing organic fibre materials. Synthetic and/or cellulose-containing fibre materials are treated with an aqueous solution of the phosphonic acid salts and are then dried preferably at 60.degree. to 200.degree. C. The applied phosphonic acid salts impair only negligibly the textile-mechanical properties of the treated fibre materials, especially of the cellulose-containing fibre materials dried at 120.degree. to 150.degree. C.

REFERENCES:
patent: 4097560 (1978-06-01), Littman et al.
patent: 4104172 (1978-08-01), Smith et al.
patent: 4151322 (1979-04-01), Rosenthal et al.

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