摘要:
A polyester article is treated with an aqueous emulsion of a halogenated phosphoric ester to retard its flammability. The aqueous emulsion is prepared by emulsifying a halogenated phosphoric ester with a nonionic surfactant derived from a phosphoric ester.
摘要:
A fabric is coated with a composition which comprises a thermoplastic polyurethane and 2,2-bis(4-hydroxy-3,5-dibromophenyl)propane derivative having the following general formula ##STR1## wherein each n1 and n2 represents zero or a positive integer and n1 + n2 is zero or one of the integers from 1 to 8, and preferably a polyisocyanate as a cross-linking agent.
摘要:
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.
摘要:
A fabric is coated with a composition which comprises a thermoplastic polyurethane and a sulfone having the following general formula ##STR1## wherein R represents --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 integer of 1 to 5, and preferably a polyisocyanate as a cross-linking agent.