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:
Apr. 14, 2015
Filed:
Oct. 23, 2013
Applicant:
Hercules Incorporated, Wilmington, DE (US);
Inventor:
Clement L. Brungardt, Oxford, PA (US);
Assignee:
Solenis Technologies, L.P., Schaffhausen, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21H 17/53 (2006.01); D21H 17/17 (2006.01); A61K 31/365 (2006.01); C07C 49/88 (2006.01); C07D 305/12 (2006.01); D21H 19/18 (2006.01); D21H 19/44 (2006.01); D21H 19/46 (2006.01);
U.S. Cl.
CPC ...
D21H 17/17 (2013.01); A61K 31/365 (2013.01); C07C 49/88 (2013.01); C07D 305/12 (2013.01); D21H 19/18 (2013.01); D21H 19/44 (2013.01); D21H 19/46 (2013.01);
Abstract
Latent dispersants were made by the hydrogenation of an alkyl ketene dimer, alkenyl ketene dimer, or ketene multimer. Adding the latent dispersant to paper or paperboard increased its resistance to water and water vapor while maintaining recyclability and repulpability. Additionally, provided is a method for increasing the repulpability of a wax coated paper or paperboard. Dispersants made by the hydrolysis of the alkyl ketene dimer, alkenyl ketene dimer, and ketene multimer are also described.