Titanium-nitride catalyzed polyester

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United States of America Patent

PATENT NO 8791225
APP PUB NO 20090306313A1
SERIAL NO

12479354

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Abstract

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A method for making polyethylene terephthalate resin in which a titanium-nitride polycondensation catalyst is introduced during the initial stages of esterification or transesterification. The titanium-nitride polycondensation catalyst may be added to a mixture containing a terephthalate component and a diol component during the formation of a polyethylene terephthalate precursor. Subsequent polycondensation of the polyethylene terephthalate precursor forms a polyethylene terephthalate polymer.

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Patent Owner(s)

Patent OwnerAddress
DAK AMERICAS MISSISSIPPI INC3303 PORT AND HARBOR DRIVE PORT BIENVILLE INDUSTRIAL PARK BAY ST LOUIS MS 39520

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nichols, Carl Steven Waxhaw, US 21 441

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