US Patent 7531617 Continuous process for producing poly(trimethylene terephthalate)
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Patent Inventor Names
Carl J. Giardino0
Daniel Albert Green0
Emily A. Blum0
Gary J. Wilson0
Gene Parrish0
John Harvey Eng0
Robert E. Trotter0
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Patent abstract
This invention relates to a continuous process for production of poly(trimethylene terephthalate), wherein gaseous 1,3-propanediol by product resulting from the process is condensed in a condenser, and a portion of the condensed by-product is recycled back into the process.
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US Patent 07531617 Continuous process for producing poly(trimethylene terephthalate) US Patent 7531617 Continuous process for producing poly(trimethylene terephthalate)
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Patent Number
07531617
Patent Number
7531617
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Official Website
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Website URL
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US Patent 07531617 Continuous process for producing poly(trimethylene terephthalate)
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Patent jurisdiction
Patent number
07531617
Date of patent
May 12, 2009
Patent application number
11638919
Date Filed
December 14, 2006
Patent primary examiner
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