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:
Jul. 16, 2002
Filed:
Oct. 01, 1999
Applicant:
Inventors:
Rex J. Field, Arcola, IL (US);
Michael S. Darsillo, Champaign, IL (US);
David J. Fluck, Bel Aire, MD (US);
Rudiger Laufhutte, Tuscola, IL (US);
Assignee:
Cabot Corporation, Boston, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 9/04 ; B32B 5/16 ; C01B 3/3113 ;
U.S. Cl.
CPC ...
B32B 9/04 ; B32B 5/16 ; C01B 3/3113 ;
Abstract
The present invention provides a recording medium comprising a substrate having a glossy coating thereon, wherein the glossy coating comprises cationic silica. The cationic silica comprises silica particles having a mean diameter of less than about 1 &mgr;m that have been contacted with at least one aluminum compound. The present invention also provides an aqueous dispersion of cationic silica, a coating composition comprising it, and methods of preparing the dispersion, coating composition, and recording medium.