Substituted cellulose acetates and uses thereof
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United States of America Patent
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Oct 27, 2015
Grant Date -
Aug 1, 2013
app pub date -
Jan 27, 2012
filing date -
Jan 27, 2012
priority date (Note) -
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Abstract
The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a drilling fluid having a base fluid and a viscosifier having a substituted cellulose acetate having a polar substituent that comprises an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, boron, and chlorine; where the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.
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International Classification(s)
- C09K:MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED ....
- A61K:PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOS....
- C09J:ADHESIVES; ADHESIVE PROCESSES IN GENERAL
- A23L:FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT....
- C09D:COATING COMPOSITIONS, e.g. PAINTS, VARNISHES, LACQ....
- C08B:POLYSACCHARIDES; DERIVATIVES THEREOF
- A23G:COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES....
- A61Q:USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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