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:
Jun. 21, 2016
Filed:
Jul. 12, 2013
Applicant:
Sappi Netherlands Services B.v., Maastricht, NL;
Inventors:
Ian Graveson, Nuneaton, GB;
Robert English, Chester, GB;
Assignee:
SAPPI Netherlands Services B.V., Maastricht, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 17/07 (2006.01); C08B 15/02 (2006.01); D21C 9/00 (2006.01); D21H 11/18 (2006.01); D21H 17/64 (2006.01); D21H 17/66 (2006.01); D21H 21/22 (2006.01);
U.S. Cl.
CPC ...
C08B 15/02 (2013.01); D21C 9/004 (2013.01); D21C 9/005 (2013.01); D21C 9/007 (2013.01); D21H 11/18 (2013.01); D21H 17/07 (2013.01); D21H 17/64 (2013.01); D21H 17/66 (2013.01); D21H 21/22 (2013.01);
Abstract
A low energy method for the preparation of nanocellulose using selected organic or inorganic swelling agents. The use of these swelling agents allows opening up the intercrystalline structure and partially the intracrystalline structure of cellulosic materials thereby achieving a reduction 5 in the energy required to subsequently process the resultant swollen cellulose material into nanocellulose.