Preparation of polytrimethylene ether glycol or copolymers thereof

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Mar 27, 2012
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May 7, 2009
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Oct 31, 2008
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Nov 1, 2007

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Abstract

This invention relates to a process for preparing polytrimethylene ether glycols or copolymers thereof having a number-average molecular weight of at least about 250 g/mole by a polycondensation reaction using at least one acid catalyst.

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COVATION INC	800 PRIDES CROSSING SUITE 201 NEWARK DE 19713

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Inventor Name	Address	# of filed Patents	Total Citations
Harmer, Mark Andrew	Landenberg, US	87	728
Hoffmann, Christian	Newark, US	115	1215
Jackson, Scott Christopher	Wilmington, US	48	282
Murphy, Edward R	Wilmington, US	7	36
Spence, Rupert	Kingston, CA	6	3

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Preparation of polytrimethylene ether glycol or copolymers thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

12262609

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PATENT NO	8143371
APP PUB NO	20090118464A1
SERIAL NO	12262609
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
March 27, 2012	US,8143371,B2 US8143371B2	GRANTED PATENT AS SECOND PUBLICATION
May 07, 2009	US,20090118464,A1 US20090118464A1	FIRST PUBLISHED PATENT APPLICATION

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12262609

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