Process for preparing cyclohexanedicarboxylic esters

United States of America Patent

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May 25, 2004
Grant Date
Jan 9, 2003
app pub date
Jun 3, 2002
filing date
Jun 16, 2001

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Expired

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Abstract

The invention relates to a process for preparing cyclohexanedicarboxylic esters (hexahydrophthalic diesters) by esterifying the corresponding benzenedicarboxylic acids and immediately hydrogenating the esterification mixture in the presence of nickel catalysts.

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OXEA GMBH	46147 OBERHAUSEN

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C07C:ACYCLIC OR CARBOCYCLIC COMPOUNDS

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Inventor Name	Address	# of filed Patents	Total Citations
Bergrath, Klaus	Oberhausen, DE	9	49
Bohnen, Hans	Moers, DE	24	295
Klein, Thomas	Oberhausen, DE	229	2424

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Process for preparing cyclohexanedicarboxylic esters

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United States of America Patent

10160780

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PATENT NO	6740773
APP PUB NO	20030009051A1
SERIAL NO	10160780
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity Expired	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
May 25, 2004	US,6740773,B2 US6740773B2	GRANTED PATENT AS SECOND PUBLICATION
January 09, 2003	US,20030009051,A1 US20030009051A1	FIRST PUBLISHED PATENT APPLICATION

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10160780

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