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:
Dec. 02, 2003
Filed:
Mar. 09, 2001
Applicant:
Inventors:
Brian Tear, Grimbsy, GB;
John Stratton, Humberston Cleethorpes, GB;
Robert Burniston, Waltham Grimbsy, GB;
Assignee:
Millennium Inorganic Chemicals, Inc., Hunt Valley, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09C 1/36 ;
U.S. Cl.
CPC ...
C09C 1/36 ;
Abstract
The present invention provides titanium dioxide pigments with improved gloss and/or durability. The titanium dioxide pigments are made by treating titanium dioxide with a plurality of metal salts under conditions suitable to form the titanium dioxide pigment having improved gloss and/or durability, wherein at least one metal salt is capable of providing a monovalent anion. Preferred pigments of the present invention are substantially-sulfate free.