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:
Jan. 21, 2014
Filed:
Dec. 17, 2010
Applicants:
Susan M. Ehrhardt, Haddonfield, NJ (US);
Kyle J. Bottorff, Newark, DE (US);
Inventors:
Susan M. Ehrhardt, Haddonfield, NJ (US);
Kyle J. Bottorff, Newark, DE (US);
Assignee:
Hercules Incorporated, Wilmington, DE (US);
Primary Examiner:
Int. Cl.
CPC ...
D21H 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A stable paper sizing composition comprising a dispersion of ketene dimer and a pH adjusted vinylamine containing polymer is disclosed. The method of preparing the stable sizing composition and the method of using the stable sizing composition is also disclosed.