Method for the esterification of terephtalic acid with butanediol, method for the manufacture of polybutylene terephtalate and a device therefor

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Mar 27, 2012
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Sep 3, 2009
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Jan 24, 2007
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Jan 24, 2006

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Abstract

The present invention relates to an improved method for the esterification of terephthalic acid with 1,4-butanediol, an improved method for the manufacture of polybutylene terephthalate as well as reactors and devices that are suited for the application in this method.

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LURGI ZIMMER GMBH	60295 FRANKFURT AM MAIN

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C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....

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Inventor Name	Address	# of filed Patents	Total Citations
Reisen, Michael	Frankfurt, DE	12	29
Wilhelm, Fritz	Karben, DE	21	206

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Method for the esterification of terephtalic acid with butanediol, method for the manufacture of polybutylene terephtalate and a device therefor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

12161858

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PATENT NO	8143367
APP PUB NO	20090221768A1
SERIAL NO	12161858
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
March 27, 2012	US,8143367,B2 US8143367B2	GRANTED PATENT AS SECOND PUBLICATION
September 03, 2009	US,20090221768,A1 US20090221768A1	FIRST PUBLISHED PATENT APPLICATION

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12161858

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