Fireproof polyester composition

Details Fireproof polyester composition Fireproof polyester composition

C - Chemistry, Metallurgy

08

K

400/5712, 400/76

C08K 5/52 (2006.01) C08G 79/04 (2006.01) C08L 67/02 (2006.01)

Patent

CA 1045739

ABSTRACT OF THE DISCLOSURE: 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: Image (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: Image (wherein, R1 denotes a monovalent hydrocarbon radical of 1 to 18 carbon atoms having or not having one or more substituents, R2 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 phos- phorus atoms.

216012

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