Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1996-06-10
1998-09-15
Leary, Louise
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536 95, 536 96, 536 97, 536 98, 536 92, 536 84, 536 85, 507103, 507112, 507113, 507114, 507115, 175267, 175 57, C08B 11193, C08B 1108, C09K 700
Patent
active
058080520
ABSTRACT:
The present invention relates to water-soluble, particularly ternary, preferably ionic, cellulose mixed ethers, more particularly to anionic water-soluble cellulose mixed ethers, as additives for drilling fluid applications.
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Kiesewetter Rene
Lange Werner
Pannek Jorn-Bernd
Szablikowski Klaus
Leary Louise
Wolff Walsrode AG
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