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:
Feb. 22, 2000
Filed:
Apr. 21, 1997
Applicant:
Inventors:
John H Henderson, Solon, OH (US);
Keith A Delaney, Hudson, OH (US);
Edward P Molloy, Jackson, MS (US);
Assignee:
Engelhard Corporation, Iselin, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A21D / ;
U.S. Cl.
CPC ...
426253 ; 554191 ;
Abstract
Disclosed are compositions, suitable for use in the purification of edible or inedible oils, of agglomerated particles of at least one minus ten micron bleaching clay, wherein said agglomerated particles are microspheres having an average diameter of at least about 10 microns as well as a process for preparing microspheres suitable for use as bleaching earths having improved filtration characteristics by agglomerating a mixture consisting of