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. 22, 1978
Filed:
Dec. 01, 1975
Walter Ploger, Hilden, DE;
Claus Gutzschebauch, Neuss, DE;
Henkel Kommanditgesellschaft auf Aktien, Dusseldorf-Holthausen, DE;
Abstract
A process for stabilizing anhydrous dibasic calcium phosphate against reaction with fluorine ions comprising treating an aqueous suspension of anhydrous dibasic calcium phosphate at a pH of from 5 to 10 with an azacycloalkane-2,2-diphosphonic acid of the formula ##STR1## wherein n is an integer from 3 to 5, or a water-soluble salt thereof, in an amount of from 0.01% to 5% by weight with reference to the anhydrous dibasic calcium phosphate; as well as tooth cleaning preparation containing the stabilized anhydrous dibasic calcium phosphate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile