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:
Dec. 28, 1993
Filed:
Jan. 21, 1992
Applicant:
Inventor:
Peter A Doty, Midland, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01V / ; C01B / ;
U.S. Cl.
CPC ...
4233281 ; 423331 ; 423332 ; 252 28 ; 507140 ; 507143 ;
Abstract
Fine particle silica, especially fumed silica (FS), is interacted, in aqueous medium, with a substantially crystalline mixed metal layered hydroxide (MMLH) of the formula shown below to form a novel adduct, MMLH-SiO.sub.2, as an aqueous gell which is shear-thinning and which has rapid gelation times, the said MMLH comprising the general formula