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:
Sep. 08, 2015
Filed:
Jul. 07, 2014
Applicant:
Cristal Usa Inc., Hunt Valley, MD (US);
Inventors:
Julie Elizabeth Maltby, North Lincolnshire, GB;
Claire Bygott, North East Lincolnshire, GB;
Assignee:
Cristal USA, Inc., Hunt Valley, MD (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/56 (2006.01); C08F 20/06 (2006.01); C08F 118/02 (2006.01); C08F 12/02 (2006.01); B01D 53/86 (2006.01); B01J 21/06 (2006.01); B01J 35/00 (2006.01); B01J 37/02 (2006.01); B82Y 30/00 (2011.01); C04B 26/06 (2006.01); C04B 41/50 (2006.01); C09D 1/00 (2006.01); C09D 5/00 (2006.01); C09D 7/12 (2006.01); C04B 111/20 (2006.01); C08K 3/22 (2006.01); C08K 3/26 (2006.01);
U.S. Cl.
CPC ...
B01D 53/8628 (2013.01); B01J 21/063 (2013.01); B01J 35/004 (2013.01); B01J 37/0219 (2013.01); B82Y 30/00 (2013.01); C04B 26/06 (2013.01); C04B 41/5041 (2013.01); C09D 1/00 (2013.01); C09D 5/00 (2013.01); C09D 7/1216 (2013.01); C09D 7/1266 (2013.01); C04B 2111/2061 (2013.01); C08K 3/22 (2013.01); C08K 3/26 (2013.01); Y10T 428/31855 (2015.04);
Abstract
De-polluting, self-cleaning coating compositions are disclosed which comprise an organic binder having dispersed therein photocatalytic titanium dioxide particles substantially in anatase form which have an average crystallite size between about 1 nm and about 150 nm and which preferably have photocatalytic activity in the presence of visible light. Advantageously, the coatings of the invention do not require pre-activation to achieve high initial photocatalytic activity against pollutants in the air, such as NOcompounds.