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:
Dec. 07, 2021
Filed:
Sep. 06, 2018
Applicant:
Solenis Technologies, L.p., Wilmington, DE (US);
Inventor:
Daniel Joseph Nicholson, Wilmington, DE (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21C 9/10 (2006.01); D21C 9/00 (2006.01); D21C 9/147 (2006.01); D21C 3/02 (2006.01); D21C 3/22 (2006.01);
U.S. Cl.
CPC ...
D21C 9/1036 (2013.01); D21C 3/02 (2013.01); D21C 3/222 (2013.01); D21C 9/005 (2013.01); D21C 9/147 (2013.01);
Abstract
A method for producing a high yield Kraft pulp is provided. In particular, the method involves adding a composition comprising an organic amine phosphonate and a sulphonated linear alcohol ethoxylate surfactant to a pulping process. The composition enhances the delignification of cellulosic fiber in chemical wood pulps.