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, 2001
Filed:
May. 25, 1999
Karen A. Gruber, Hamilton, NJ (US);
Shireen A. Mamun, East Windsor, NJ (US);
Engelhard Corporation, Iselin, NJ (US);
Abstract
In one embodiment, the present invention relates to a particulate urea composition containing particulate urea; kaolin; and a dispersant, wherein the dispersant is at least one of ammonia based dispersants, sulfonate dispersants, carboxylic acid dispersants and polymeric dispersants. In another embodiment, the present invention relates to a method of making urea, involving the steps of contacting a urea process stream with a slurry comprising a liquid, kaolin, and a dispersant, wherein the dispersant is at least one of ammonia based dispersants, sulfonate dispersants, carboxylic acid dispersants and polymeric dispersants; and recovering urea.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile