Method for making sulfonated block copolymers, method for making membranes from such block copolymers and membrane structures

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Sep 6, 2011
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May 9, 2008
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May 9, 2008

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Abstract

alcohol to residual carboxylic acid, resulting in an improved sulfonated block copolymer solution. The present invention further relates to the use of such sulfonated block copolymer solutions to prepare various membranes and other articles.

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STEPAN COMPANY	22 W FRONTAGE ROAD NORTHFIELD IL 60093

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C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS

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Inventor Name	Address	# of filed Patents	Total Citations
Dado, Gregory Paul	Chicago, US	8	82
Handlin,, Jr Dale Lee	Houston, US	19	224
Trenor, Scott Russell	Houston, US	12	251

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Method for making sulfonated block copolymers, method for making membranes from such block copolymers and membrane structures

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United States of America Patent

12118073

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US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
September 06, 2011	US,8012539,B2 US8012539B2	GRANTED PATENT AS SECOND PUBLICATION
November 12, 2009	US,20090280255,A1 US20090280255A1	FIRST PUBLISHED PATENT APPLICATION

PATENT NO	8012539
SERIAL NO	12118073
DOCKET NO

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12118073

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