High melt strength elastomeric copolyesters

C - Chemistry – Metallurgy – 08 – G

Patent

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Details

402/192, 402/193

C08G 63/66 (2006.01) C08G 63/40 (2006.01) C08G 63/46 (2006.01)

Patent

CA 1187247

ABSTRACT An elastomeric copolyester resin having high melt strength and capable of being blow-molded. The copolyester resin is made by adding to the polymerizing or initial mixture small amounts of a heat stable chain branching agent having three or more carboxyl groups, hydroxyl groups, or combinations thereof. The copoly- ester resin contains units of terephthalic acid, butane diol, polytetramethylene glycol, and dimer acid.

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