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. 04, 1976
Filed:
Feb. 05, 1974
Applicant:
Inventor:
James H O'Brien, Columbia, MO (US);
Assignee:
Philadelphia Quartz Company, Valley Forge, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
2523 / ; 106 36 ; 252317 ; 428538 ;
Abstract
Stable aqueous dispersions of alumina are formed at concentrations of above about 25% Al.sub.2 O.sub.3 by dispersing alumina dried with a strongly acidic solution. Said stable aqueous dispersions of alumina are stable for at least 2.5 months.