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US 10,240,290 B2Granted
Method of producing cellulose nanofibrils
AssigneeGL&V USA, Inc.
InventorsBruce Crossley, Marc Gerrer
Life of this patent
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Abstract
A cellulose nanofibrils production method comprising the steps of: identifying a desired level of cellulose nanofibrils pulp purity, partially refining pulp to produce a cellulose nanofibrils pulp purity between 5% and 15% less than the desired desired purity, and then separating out the cellulose nanofibrils from the longer fibers to produce the desired level of cellulose nanofibrils pulp purity.
Claims4
A cellulose nanofibrils production method comprising the steps of:
- identifying a desired level of cellulose nanofibrils pulp purity, purity being defined by a number of fibers under a desired length of fiber compared to the total number of fibers, partially refining pulp to produce a cellulose nanofibrils pulp purity between 5% and 20% less than the desired level of cellulose nanofibrils pulp purity, and then separating out the cellulose nanofibrils under the desire length of a fiber from the longer fibers to produce the desired level of cellulose nanofibrils pulp purity.
Dependencies are inferred from the claim text.