The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 09, 2004
Filed:
Jun. 25, 2001
Applicant:
Inventors:
Laurence Ladouce, Paris, FR;
Etienne Fleury, Irigny, FR;
Cécile Gousse, Meylan, FR;
Robert Cantiani, Lyons, FR;
Henri Chanzy, La Tronche, FR;
Gérard Excoffier, Vaulnaveys-le-Haut, FR;
Assignee:
Rhodia Chimie, Boulogne Billancourt, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B 1/100 ; C08B 1/500 ;
U.S. Cl.
CPC ...
C08B 1/100 ; C08B 1/500 ;
Abstract
The invention concerns cellulose microfibrils with modified surface, characterised in that the hydroxyl functions present at the surface of the microfibrils are etherified with at least an organic compound comprising at least a function capable of reacting with said hydroxyl functions, and the degree of surface substitution (DSs) is at least 0.05. The invention also concerns a method for obtaining said microfibrils and their use as agent for modifying viscosity, texture and/or as reinforcing filler.