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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.:

US 10669673 B1

PDFFull Text
Date of Patent:
Jun. 02, 2020

Filed:

Jan. 11, 2018

Manufacture of absorbent paper with low charge density imidazolinium containing debonder compositions

Applicant:

Gpcp Ip Holdings Llc, Atlanta, GA (US);

Inventors:

Yu Chen, Appleton, WI (US);

Kevin M. Holtman, Appleton, WI (US);

Brian S. Hammes, Appleton, WI (US);

Jeffrey J. Boettcher, Neenah, WI (US);

Assignee:

GPCP IP Holdings LLC, Atlanta, GA (US);

Attorney:

Laura L. Bozek

Primary Examiner:

Jose A Fortuna

Int. Cl.
CPC ...
D21H 21/24 (2006.01); D21H 21/20 (2006.01); D21H 17/07 (2006.01); C07D 233/16 (2006.01); D21H 17/20 (2006.01); D21H 27/00 (2006.01); D21H 17/14 (2006.01); D21H 17/37 (2006.01); D21H 21/18 (2006.01); D21H 21/22 (2006.01); D21H 17/06 (2006.01); D21H 17/00 (2006.01); D21H 23/06 (2006.01);
U.S. Cl.
CPC ...
D21H 21/24 (2013.01); C07D 233/16 (2013.01); D21H 17/06 (2013.01); D21H 17/07 (2013.01); D21H 17/14 (2013.01); D21H 17/20 (2013.01); D21H 17/375 (2013.01); D21H 17/72 (2013.01); D21H 21/18 (2013.01); D21H 21/20 (2013.01); D21H 21/22 (2013.01); D21H 23/06 (2013.01); D21H 27/002 (2013.01);
Abstract

Absorbent sheet is manufactured utilizing a low charge density debonder composition comprising an imidazolinium surfactant-containing constituent selected from the group consisting of: (i) cationic imidazolinium surfactants with alkylalkenylhydroxy substitution; (ii) zwitterionic imidazolinium surfactants; and (iii) an ion paired surfactant mixture including a zwitterionic imidazolinium surfactant and a cationic surfactant and, in admixture with the imidazolinium surfactant-containing constituent, (iv) a nonionic surfactant.

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