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:
Nov. 18, 2008
Filed:
May. 17, 2005
Applicant:
Glenn R. Evers, Hockessin, DE (US);
Inventor:
Glenn R. Evers, Hockessin, DE (US);
Assignee:
CPM Industries, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C 1/36 (2006.01); C09C 3/10 (2006.01); D21B 1/00 (2006.01); D21H 17/20 (2006.01); D21H 17/67 (2006.01);
U.S. Cl.
CPC ...
Abstract
A composition containing cationic pigment particles includes titanium dioxide particles to which are bound a first water-soluble cationic polymer and cationic polymer latex particles. In some embodiments the cationic latex is made by treating an anionic latex with a second water-soluble cationic polymer, which may be the same as or different from the first water-soluble cationic polymer. The compositions may be used in papermaking applications, both for internal addition and or coatings.