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. 16, 2002
Filed:
Jul. 31, 2000
Applicant:
Inventors:
Bruce A. Keiser, Naperville, IL (US);
James E. Whitten, Hudson, NH (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 3/320 ; C01B 3/500 ;
U.S. Cl.
CPC ...
C01B 3/320 ; C01B 3/500 ;
Abstract
Colloids comprising amorphous borosilicate particles, wherein said borosilicate particles are not borosilicate glass; are described and claimed. These colloids have been found to be useful in aqueous systems, specially in papermaking.