Fireproof polyester composition

Details Fireproof polyester composition Fireproof polyester composition

1974-12-16

1977-09-06

Woodberry, Edward M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 75, 260 75H, 260 75P, 260 457P, 260860, C08L 102, C08L 6700

Patent

active

040467244

ABSTRACT:
A polyester composition having high fireproofness is obtained by blending a copolymerized polyester comprising a polyalkylene terephthalate containing in the main chain thereof binding units of the formula: ##STR1## (WHEREIN, Y denotes -O-, an alkylidene radical having 1 to 6 carbon atoms or a cycloalkylidene radical having 3 to 6 carbon atoms) with a high molecular weight organic phosphorus compound of the formula: ##STR2## (WHEREIN, R.sub.1 denotes a monovalent hydrocarbon radical of 1 to 18 carbon atoms having or not having one or more substituents, R.sub.2 denotes a divalent hydrocarbon radical of 2 to 20 carbon atoms having or not having one or more substituents, x and z each denote 0 or 1 and n denotes an integer having the value of not less than 3) in an amount corresponding to 0.05 to 1.0% by weight of phosphorus atoms.

REFERENCES:
patent: 2435252 (1948-03-01), Toy
patent: 2572076 (1951-10-01), Toy
patent: 2891915 (1959-06-01), McCormack et al.
patent: 3794617 (1974-02-01), Mains
patent: 3829405 (1974-08-01), Cohen et al.
patent: 3830771 (1974-08-01), Cohen et al.
patent: 3874155 (1975-04-01), Knopka
patent: 3874157 (1975-04-01), Knopka
patent: 3883611 (1975-05-01), Nelson

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