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. 12, 1988
Filed:
Jul. 08, 1986
Applicant:
Inventors:
Winfried Wichelhaus, Mettmann, DE;
Wolfgang von Rybinski, Duesseldorf, DE;
Horst Upadek, Ratingen, DE;
Assignee:
Kenkel Kommanditgesellschaft auf Aktien, Duesseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; C01B / ; C01B / ; C11D / ;
U.S. Cl.
CPC ...
252 95 ; 252 99 ; 252131 ; 252140 ; 25217425 ; 423328 ; 423329 ; 423331 ;
Abstract
The present invention provides synthetic, finely divided water-insoluble layered silicates having a smectite-like crystal phase, with increased contents of bound alkali and silicate and a distinctly reduced swelling power in aqueous suspension relative to pure layered silicates of this type. The synthetic layered silicate of this invention has the following oxide summation formula