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. 10, 1979
Filed:
Nov. 22, 1976
Applicant:
Inventors:
Henri Roques, Portet sur Garonne, FR;
Andre Girou, Lanta, FR;
Assignee:
Produits Chimiques Ugine Kuhlmann, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02B / ;
U.S. Cl.
CPC ...
210 58 ; 252180 ;
Abstract
Compositions for inhibiting the deposition of scale from aqueous solutions onto surfaces in contact with the solutions, such compositions comprising at least one fluorocarbon which will deposit on such surface, exemplary fluorocarbons being at least one of the following: ##STR1## where n is an integer from 2 to 20, the compositions optionally containing hydroxyethylenediphosphonic acid, together with methods for treating surfaces with such fluorocarbons.