Method for bleaching chemical paper pulps by final ozone treatment at high temperature

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Sep 18, 2012
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Mar 18, 2010
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Dec 11, 2007
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Dec 13, 2006

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Abstract

A method for treating a prebleached chemical pulp including a step of ozone treatment of the pulp, carried out at a temperature above 60° C., advantageously above 65° C. and even more advantageously above or equal to 70° C.

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ITT MANUFACTURING ENTERPRISES INC	1105 NORTH MARKET STREET WILMINGTON DE 19801

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Inventor Name	Address	# of filed Patents	Total Citations
Chirat, Christine	Grenoble, FR	4	5
Hostachy, Jean-Christophe	Taluyers, FR	2	6
Lachenal, Dominique	Echirolles, FR	8	34
Pipon, Guillaume	Saint Martin d'Heres, FR	1	4
Ried, Achim	Bad Oyenhausen, DE	8	15

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Method for bleaching chemical paper pulps by final ozone treatment at high temperature

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United States of America Patent

12516369

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PATENT NO	8268120
APP PUB NO	20100065233A1
SERIAL NO	12516369
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
September 18, 2012	US,8268120,B2 US8268120B2	GRANTED PATENT AS SECOND PUBLICATION
March 18, 2010	US,20100065233,A1 US20100065233A1	FIRST PUBLISHED PATENT APPLICATION

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12516369

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