Stabilized microfibrillar cellulose

C - Chemistry – Metallurgy – 08 – B

Patent

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Details

C08B 11/20 (2006.01) C08B 11/145 (2006.01)

Patent

CA 2402181

A derivatized microfibrillar cellulose, derivatized to contain a substituent that provides cationic charge. A method for producing a derivatized microfibrillar cellulose to include a substituent that provides cationic charge, which may include derivatizing a microfibrillar cellulose to obtain a derivatized microfibrillar cellulose, microfibrillizing a derivatized non- microfibrillar cellulose to produce a derivatized microfibrillar cellulose, or microfibrillizing and derivatizing a non-microfibrillar cellulose substantially simultaneously. A method of modifying the rheological properties of a composition of matter using derivatized microfibrillar cellulose. Methods of improving coatings, paper manufacture, and the stability of emulsions, dispersions, and foams using a derivatized microfibrillar cellulose. Compositions that include derivatized microfibrillar cellulose, including paper compositions, comestible compositions, non-comestible spreadable compositions, and emulsions, dispersion, and foams.

L'invention concerne une cellulose microfibrillaire dérivée contenant un substituant qui produit une charge cationique. L'invention porte également sur un procédé de production de cellulose microfibrillaire dérivée afin d'y inclure un substituant qui fournit une charge cationique, qui peut consister notamment à dériver une cellulose microfibrillaire de façon à obtenir une cellulose microfibrillaire dérivée, à microfibriller une cellulose non microfibrillaire dérivée pour produire une cellulose microfibrillaire dérivée, ou à microfibriller et dériver une cellulose non microfibrillaire de manière sensiblement simultanée. L'invention concerne en outre un procédé de modification des propriétés rhéologiques d'une composition de matière à l'aide de cellulose microfibrillaire dérivée. Elle traite également de procédés permettant d'améliorer des revêtements, la fabrication de papier et la stabilité des émulsions, dispersions et mousses à l'aide de cellulose microfibrillaire dérivée, ainsi que des compositions renfermant notamment de la cellulose microfibrillaire dérivée, y compris des compositions de papier, des compositions comestibles, des compositions non comestibles étalables, ainsi que des émulsions, dispersions et mousses.

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