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:
Mar. 07, 1978
Filed:
Jan. 21, 1977
Helmut Blum, Dusseldorf, DT;
Karl-Heinz Worms, Dusseldorf, DT;
Henkel Kommanditgesellschaft auf Aktien (Henkel KGaA), Dusseldorf-Holthausen, DT;
Abstract
Diphosphonoalkane carboxylic acids having the formula ##STR1## wherein R is H or --CH.sub.2 --CH.sub.2 --COOH; as well as their water-soluble salts. The compounds are excellent sequestering agents, especially for alkaline earth and earth metal ions. They are stabilizers for percompounds and are useful in the delaying of the setting times for gypsum. In addition, the compounds are useful in cosmetic preparations, such as toothpastes and mouthwashes where they prevent formation of tartar and plaque and are useful in therapy in the treatment of diseases related to the abnormal deposition or dissolution of difficultly soluble calcium salts in the animal body.