Polyester blends exhibiting low temperature toughness

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United States of America Patent

PATENT NO 9062200
APP PUB NO 20140357797A1
SERIAL NO

14460026

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Abstract

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Polymer blends suitable for packaging are disclosed that include one or more impact modifiers; and one or more polyethylene terephthalate homopolymers or copolymers obtained by a melt phase polymerization using a catalyst system comprising aluminum atoms in an amount, for example, from about 3 ppm to about 60 ppm and one or more alkaline earth metal atoms, alkali metal atoms, or alkali compound residues in an amount, for example, from about 1 ppm to about 25 ppm, in each case based on the weight of the one or more polyethylene terephthalate homopolymers or copolymers The polymer blends disclosed exhibit improved low temperature toughness compared with blends made using polymers prepared with conventional catalyst systems.

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Patent Owner(s)

Patent OwnerAddress
ALPEK POLYESTER S A DE C VSAN PEDRO GARZA GARCÍA NUEVO LEÓN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Colhoun, Frederick Leslie Kingsport, US 27 233
Martin, Roger Lee Gray, US 4 16
Peters, Richard Dalton Kingsport, US 20 187
Stewart, Mark Edward Kingsport, US 29 669
Weinhold, Stephen Kingsport, US 28 267

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