Process for the production of polyester resins

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United States of America Patent

PATENT NO 6245863
SERIAL NO

09221385

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Abstract

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Process for the production of aromatic polyester resins starting from resins with an IV from 0.1 to 0.4 dl/g comprising the steps of blending the resin with a dianhydride of a tetracarboxylic acid, extruding the resin under the form of a strand, cooling the strand or the chips obtainable by cutting the strand, at a temperature between 150.degree. C. and 210.degree. C. and maintaining the same temperature for sufficient time to obtain a crystalline product wherein the DSC curves of the same do not show presence of premelt peaks or only so in a negligible amount.

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Patent Owner(s)

Patent OwnerAddress
CORPUS CHRISTI POLYMERS LLC7001 JOE FULTON INTERNATIONAL TRADE CORRIDOR CORPUS CHRISTI TX 78409

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Al, Ghatta Hussain Fiuggi, IT 18 56

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