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:
May. 31, 2022
Filed:
Oct. 30, 2019
Applicant:
Buckman Laboratories International, Inc., Memphis, TN (US);
Inventors:
Ahmed Moustafa, Germantown, TN (US);
Daniel Glover, Brighton, TN (US);
Assignee:
BUCKMAN LABORATORIES INTERNATIONAL, INC., Memphis, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 51/00 (2006.01); D21H 13/02 (2006.01); D21H 17/36 (2006.01); D21H 19/20 (2006.01);
U.S. Cl.
CPC ...
C08L 51/003 (2013.01); D21H 13/02 (2013.01); D21H 17/36 (2013.01); D21H 19/20 (2013.01); C08L 2201/54 (2013.01);
Abstract
A grafted polyvinyl alcohol polymer has a balance between hydrophilicity and hydrophobicity. The grafted polyvinyl alcohol polymer has a chemical functionality that allows for adsorption onto the pulp fibers, polymer film formation upon drying, repelling water upon wetting, polymer film swelling and breaking for prolonged wetting by water. When incorporated into paper products, the polymer can provide a paper having improved wet strength, temporary water repellency, and/or is dispersible in aqueous solutions.