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:
Apr. 08, 2003
Filed:
Jan. 26, 2001
Bruce L. Roberts, Norman, OK (US);
Jeffrey D. Elliott, Oklahoma City, OK (US);
Ronnie L. Hoskins, Yukon, OK (US);
Bruce R. Palmer, Edmond, OK (US);
Kerr-McGee Chemical LLC, Oklahoma City, OK (US);
Abstract
A process for preparing an improved pigment which is readily dispersible in paints and plastics concentrates is provided. In accordance with the process, a particulate pigment is mixed with water to form a slurry thereof, and a surface active agent is mixed with the slurry so that the pigment therein is coated therewith. A preferred surface active agent is a mixture of ethoxylated sorbitan derivatives, non-ethoxylated mono and diglycerides and ethoxylated mono and diglycerides. After the pigment has been coated with the surface active agent, the coated pigment is dried.