Polyester filaments flame retarded with end-capped poly(m-phenyl

Details Polyester filaments flame retarded with end-capped poly(m-phenyl Polyester filaments flame retarded with end-capped poly(m-phenyl

1976-05-20

1977-07-12

Jacobs, Lewis T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 457P, 260 47P, 260930, 264211, C08L 6700, D01F 102

Patent

active

040354423

ABSTRACT:
Polyester filaments having improved flame retardant properties are prepared by a process in which a poly(m-phenylene cyclohexylphosphonate) compound is melted, is mixed with molten polyester, and the melt blend is forwarded to a spinning pack and is melt-spun into filaments. The compound is end-capped with p-phenylphenol or p-bromophenol to avoid reaction with the molten polyester.

REFERENCES:
patent: 2435252 (1948-02-01), Toy
patent: 2682522 (1954-06-01), Coover et al.
patent: 2743258 (1956-04-01), Coover
patent: 3719727 (1973-03-01), Masai et al.
patent: 3829405 (1974-08-01), Cohen et al.

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