Flame retardant compositions comprising block copolyesters...

C - Chemistry – Metallurgy – 08 – L

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400/3016

C08L 67/02 (2006.01) C08G 63/181 (2006.01) C08G 63/20 (2006.01) C08L 67/00 (2006.01)

Patent

CA 1102469

8CH-2368 ABSTRACT OF THE DISCLOSURE Novel flame retardant thermoplastic compositions comprising block copolyesters useful as molding resins are prepared by mixing a flame retardant compound with a product resulting from the transesterification of (a) straight or branched chain poly(1,4-butylene terephthalates) and (b) a copolyester of a linear aliphatic dicarboxylic acid and, optionally, an aromatic dibasic acid such as terephthalic or isophthalic acid with one or more straight or branched chain dihydric aliphatic glycols.

292802

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