Cement compositions and biodegradable dispersants therefor

United States of America Patent

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Feb 1, 2000
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N/A
app pub date
Sep 1, 1998
filing date
Sep 1, 1998

priority date (Note)
Expired

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Abstract

This invention provides improved cement composition and biodegradable dispersants therefor. The biodegradable dispersants are basically comprised of a high molecular weight, phenolic hydroxy group blocked, alkali metal lignosulfonate.

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Patent Owner(s)

Patent Owner	Address
LIGNOTECH U S A INC	HIGHWAY 51 ROTHSCHILD WI 54474

International Classification(s)

C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Brenneis, D Chad	Marlow, OK	112	6060
Chatterji, Jiten	Duncan, OK	263	15926
Dickman, Stephen L	Wausau, WI	2	57
Gray, Dennis W	Comanche, OK	36	2566
Lebo, Stuart E	Schofield, WI	4	65

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Cement compositions and biodegradable dispersants therefor

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United States of America Patent

09144749

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PATENT NO	6019835
SERIAL NO	09144749
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09144749

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