Microfibrillar cellulose derivatised by steric or electrostatic forces

A derivatised microfibrillar cellulose is derivatised to comprise substituents that provide electrostatic and/or steric functionality. The electrostatic functionality is provided by an anionic charge. The derivatised microfibrillar cellulose forms a gel in water at least one point in the concentrati...

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Bibliographische Detailangaben
Hauptverfasser:	THOMPSON SAMUEL ANTHONY, GELMAN ROBERT ALAN, TISE FRANK PEINE, CONNER HERBERT THOMPSON, LUSVARDI KATE MARRITT, COWAN PATRICK JOSEPH, CASH MARY JEAN, CHAN ANITA
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES AGRICULTURE ANIMAL HUSBANDRY BANDAGES, DRESSINGS OR ABSORBENT PADS BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMISTRY COMPOSITIONS BASED THEREON DERIVATIVES THEREOF DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DYES FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FISHING FOMENTATION FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J FORESTRY HUMAN NECESSITIES HUNTING HYGIENE IMPREGNATING OR COATING OF PAPER MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MEDICAL OR VETERINARY SCIENCE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PAINTS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS POLISHES POLYSACCHARIDES PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PRODUCTION OF CELLULOSE PROSTHESES PULP COMPOSITIONS SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRAPPING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	A derivatised microfibrillar cellulose is derivatised to comprise substituents that provide electrostatic and/or steric functionality. The electrostatic functionality is provided by an anionic charge. The derivatised microfibrillar cellulose forms a gel in water at least one point in the concentration range of from 0.05 to 0.99wt%. The anionic change can be provided by carboxyl, sulphate, sulphonate, phosphonate or phosphate. The electrostatic functionality can be provided by both an anionic and cationic charge. The cellulose can be used in pharmaceutical, cosmetic, fertilizing or pesticidal compositions or products such as a wound dressing or in paper products.