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:
Oct. 11, 1977
Filed:
Mar. 28, 1975
Applicant:
Inventors:
Rolf Hermann Madaus, Cologne-Bruck, DT;
Klaus Gorler, Bensberg-Refrath, DT;
Assignee:
Dr. Madaus & Co., Cologne, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; A01N / ; A61K / ; C01F / ;
U.S. Cl.
CPC ...
4234 / ; 423427 ; 423630 ; 424156 ; 424157 ;
Abstract
A basic aluminum hydroxycarbonate hydrate, usable as an antacid, is prepared by simultaneously adding aqueous solutions of aluminum sulfate and alkali hydrogen carbonate or alkali carbonate to water while maintaining a neutral or weakly alkaline pH and adjusting the pH-value of the reaction mixture, after completed precipitation, to about 6.0 by adding an aluminum salt of a strong acid.