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:
Sep. 08, 2015
Filed:
Apr. 15, 2013
Applicant:
Hewlett-packard Development Company, L.p., Fort Collins, CO (US);
Inventors:
Steven L. Webb, Murrieta, CA (US);
John L. Stoffel, San Diego, CA (US);
John C. Helfrick, San Diego, CA (US);
Silke Courtenay, Temecula, CA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 21/16 (2006.01); D21H 17/14 (2006.01); D21H 21/38 (2006.01);
U.S. Cl.
CPC ...
D21H 21/16 (2013.01); D21H 17/14 (2013.01); D21H 21/38 (2013.01);
Abstract
A sizing composition includes from about 3 kg/ton to about 15 kg/ton of calcium propionate, an additive, and a balance of water. The additive is selected from the group consisting of starch, an optical brightener, a biocide, a defoamer, a surface size agent, a wet strength additive, and combinations thereof. The sizing composition has a pH ranging from 7 to 8.