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:
Oct. 10, 2017
Filed:
May. 13, 2016
Applicant:
Solenis Technologies, L.p., Schaffhausen, CH;
Inventors:
Sachin Borkar, Wilmington, DE (US);
Qu-Ming Gu, Bear, DE (US);
Joseph M Mahoney, Newark, DE (US);
Kate Marritt Lusvardi, Chadds Ford, PA (US);
Mingxiang Luo, Hockessin, DE (US);
Richard Riehle, Wilmington, DE (US);
Assignee:
Solenis Technologies, L.P., , CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21H 21/20 (2006.01); D21H 21/18 (2006.01); D21H 17/37 (2006.01); C08F 271/00 (2006.01); C08F 271/02 (2006.01); C08F 8/00 (2006.01); C08F 8/44 (2006.01); D21H 17/41 (2006.01); D21H 17/45 (2006.01); D21H 21/10 (2006.01);
U.S. Cl.
CPC ...
D21H 21/20 (2013.01); C08F 8/00 (2013.01); C08F 8/44 (2013.01); C08F 271/00 (2013.01); C08F 271/02 (2013.01); D21H 17/375 (2013.01); D21H 17/41 (2013.01); D21H 17/45 (2013.01); D21H 21/10 (2013.01); D21H 21/18 (2013.01);
Abstract
Provided is a method of making paper and paperboard. In particular graft copolymers of vinyl monomers and functionalized vinylamine-containing base polymers by Michael addition are added to a paper furnish. The composition can be used alone or in combination with other additives for use in paper making and to improve paper making processes such as paper dry and wet strength properties.