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:
Aug. 30, 1977
Filed:
Nov. 03, 1975
Applicant:
Inventors:
Jan Ivan Bidwell, St. Austell, EN;
Roger William Adams, St. Austell, EN;
Walter Brian Jepson, St. Austell, EN;
Assignee:
English Clavs Lovering Pochin & Company, Limited, St. Austell, EN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
106 72 ; 106 73 ; 1063 / ;
Abstract
The rheological properties of a clay are improved by forming a mixture of an aqueous suspension of the clay at a pH in the range 5 to 9 and a weakly positively charged inorganic hydroxy polymer of aluminum in a quantity such that there is present in the mixture not more than 10 mg of aluminum per gram of clay.