logo

For the Inventor, By the Inventor

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 9708771 B1

PDFFull Text
Date of Patent:
Jul. 18, 2017

Filed:

Feb. 24, 2014

Aqueous emulsion of a sizing agent

Applicant:

Basf SE, Ludwigshafen, DE;

Inventors:

Ingrid Haufe, Dresden, DE;

Klaus Möller, Mutterstadt, DE;

Attila Kurucz, Graz, AT;

Assignee:

BASF SE, Ludwigshafen, DE;

Attorney:

Marshall, Gerstein & Borun LLP

Primary Examiner:

Ling Choi

Assistant Examiner:

Chun-Cheng Wang

Int. Cl.
CPC ...
D21H 21/16 (2006.01); D21H 17/34 (2006.01); D21H 17/15 (2006.01); D21H 17/00 (2006.01); D21H 17/07 (2006.01); D21H 17/16 (2006.01); D21H 17/17 (2006.01); D21H 17/37 (2006.01); D21H 17/55 (2006.01); D21H 17/56 (2006.01);
U.S. Cl.
CPC ...
D21H 21/16 (2013.01); D21H 17/07 (2013.01); D21H 17/15 (2013.01); D21H 17/16 (2013.01); D21H 17/17 (2013.01); D21H 17/34 (2013.01); D21H 17/37 (2013.01); D21H 17/55 (2013.01); D21H 17/56 (2013.01); D21H 17/72 (2013.01);
Abstract

A method of preparing an aqueous emulsion of a sizing agent for use in a papermaking process comprising, emulsifying the sizing agent into an aqueous liquid, in which an aqueous dispersion of a water-soluble polymer of N-vinylformamide and/or N-vinylacetamide units is added to either the sizing agent or the aqueous liquid before, during or after emulsification, wherein the dispersion contains, based on 100 parts by weight of water, (A) from 0.1 to 80 parts by weight of a water-soluble polymer containing N-vinylformamide units and/or N-vinylacetamide units, and (B) from 0.02 to 50 parts by weight of at least one polymeric dispersant.

Find Patent Forward Citations

Haufe, Ingrid. (2017). Aqueous emulsion of a sizing agent (U.S. Patent No. 9708771). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9708771

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…