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. 29, 2018
Filed:
May. 29, 2015
Applicant:
Ecolab Usa Inc., St. Paul, MN (US);
Inventors:
Clay E. Ringold, Decatur, GA (US);
Cornel Hagiopol, Lilburn, GA (US);
Dexter C. Johnson, Stone Mountain, GA (US);
Brian L. Swift, Oxford, GA (US);
David R. Snead, Atlanta, GA (US);
Assignee:
ECOLAB USA INC., St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 21/20 (2006.01); D21H 17/33 (2006.01); D21H 17/55 (2006.01); D21H 17/52 (2006.01); D21H 17/56 (2006.01); D21H 23/04 (2006.01);
U.S. Cl.
CPC ...
D21H 21/20 (2013.01); D21H 17/52 (2013.01); D21H 17/55 (2013.01); D21H 17/56 (2013.01); D21H 23/04 (2013.01);
Abstract
Strengthening resins and methods for making and using same. The strengthening resin can include a polyamine partially cross-linked with a bridging moiety and having azetidinium ions. The bridging moiety can be derived from a functionally symmetric cross-linker. The functionally symmetric cross-linker can include a diisocyanate, a 1,3-dialkyldiazetidine-2,4-dione, a dianhydride, a diacyl halide, a dienone, a dialkyl halide, or any mixture thereof.