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:
Jan. 27, 1976
Filed:
Oct. 08, 1974
Applicant:
Inventor:
Mahlon Robert Derolf, Blackwood, NJ (US);
Assignee:
Philadelphia Quartz Company, Valley Forge, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
1063 / ; 1062 / ;
Abstract
Stable aqueous dispersions of alumina are formed at concentrations of above about 18% to about 26% on a weight basis by dispersing alumina in a hydrochloric acid solution where the Al.sub.2 O.sub.3 /HCl parts by weight ratio is maintained between 54 and 65 pbw of Al.sub.2 O.sub.3 /l pbw of HCl.