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. 25, 1989
Filed:
Jan. 20, 1987
Applicant:
Inventors:
Rene Tarral, Paris, FR;
Jacky Mention, Leognan, FR;
Assignee:
Laboratoires Smith Kline & French, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01N / ; A61L / ;
U.S. Cl.
CPC ...
424 43 ; 424 44 ; 424439 ; 424446 ;
Abstract
The invention relates to an effervescent couple which comprises a mixture of mono-and di-alkali metal citrate as well as to a process for preparing same. The process comprises partially neutralizing citric acid by reacting an alkali metal carbonate or bicarbonate with citric acid and water and controlling the amount of carbon dioxide released during the reaction by stopping the reaction when a certain amount of citric acid has been neutralized. In a preferred embodiment the reaction is stopped when from about 24% to about 54% of the potential amount of carbon dioxide has been released.