Flame retardant treatment for polyester products

Details Flame retardant treatment for polyester products Flame retardant treatment for polyester products

1978-05-16

1981-03-31

Schofer, Joseph L.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

8495, 428290, 428921, 4273933, B32B 2708, B32B 2736, B32B 2706

Patent

active

042593964

ABSTRACT:
A polyester product is treated with a treatment liquid containing at least one of dibromophenyl derivatives represented by the following general formula: ##STR1## wherein Y is --SO.sub.2 -- or --C(CH.sub.3).sub.2 --, each of R.sub.1 and R.sub.2 is --H, --CH.sub.3, --C.sub.2 H.sub.5, --C.sub.3 H.sub.7 OH, --CH.sub.2 CH.sub.2 Br or --(CH.sub.2 CH.sub.2 O).sub.n H and n is a positive integer of from 1 to 9 to obtain a flame retardant polyester fiber product. The polyester product may be further treated with an oligomer of vinyl phosphonate which is present either in the above treatment liquid with the dibromophenyl derivative or in a separate treatment bath from the above treatment liquid.

REFERENCES:
patent: T916008 (1973-11-01), Rothwell
patent: T928001 (1974-11-01), Blackwell
patent: 3681281 (1972-09-01), Jeulke
patent: 3695925 (1972-10-01), Weil
patent: 3883478 (1975-05-01), Gresham
patent: 4017257 (1977-04-01), Weil
Chemical Abstracts 83:207458g, 83:44677u, 85:144028t, 86:56469c.
Bhatnagar, V. M., Advances in Fire Retardant Textiles (Part 3), Technomic, Westport, pp. 499-500 (1975) A4141.
Chemical Abstract 86:156994p, 1977.

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