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:
May. 15, 1984
Filed:
Mar. 25, 1982
Applicant:
Inventors:
Brian Tear, Cleethorpes, GB;
David G Othen, Grimsby, GB;
Assignee:
Laporte Industries Limited, London, GB;
Primary Examiner:
Int. Cl.
CPC ...
C09C / ; C09C / ; C08J / ;
U.S. Cl.
CPC ...
1063 / ; 1062 / ; 1062 / ; 1063 / ; 1063 / ; 1063 / ; 106309 ; 106300 ; 252356 ;
Abstract
Stable high concentration aqueous slurries of pigmentary metal oxide particles having a hydrous oxide surface-treatment comprising alumina, for example alumina surface-treated pigmentary titanium dioxide, may be formed by the use of a specified combination of anionic and amine dispersants and a milling in the presence of grinding elements, for example in a sand mill, to develop suitable viscosity and gloss characteristics. The slurries may show thixotropic properties and are suitable for incorporation in vinyl silk aqueous emulsion paints.