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:
Dec. 02, 2003
Filed:
May. 23, 2001
Applicant:
Inventors:
Sergio Cardola, Rome, IT;
Panos Iakovides, Rome, IT;
Laura Orlandini, Bacoli, IT;
Maria Rosa Rescio, Rome, IT;
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 3/20 ; C11D 3/44 ;
U.S. Cl.
CPC ...
C11D 3/20 ; C11D 3/44 ;
Abstract
The present invention describes a process of cleaning an enamel surface with a liquid acidic composition comprising an enamel safe acid wherein the pK of said acid is 3.5 or higher, with the proviso that non mono-lower alkyl ethers or phenyl ethers or benzyl ethers of diethylene glycol, wherein the lower alkyl is of 2 to 6 carbon atoms, are present in said composition. The composition employed in said process is safe to enamel.