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. 15, 2005
Filed:
Sep. 27, 2002
Naofumi Yano, Kobe, JP;
Hiroyuki Sasaki, Osaka, JP;
Naofumi Yano, Kobe, JP;
Hiroyuki Sasaki, Osaka, JP;
Kanebo, Ltd., Tokyo, JP;
Abstract
The object of the invention is to provide a tooth-cleaning composition capable of well removing staining matters such as tar of tobacco and tea incrustation from teeth merely by cleaning teeth with it in a simplified manner for a short period of time not damaging the surfaces of teeth to thereby estethicize the thus-cleaned teeth, and to provide a method for producing the composition. The object can be attained by a tooth-cleaning composition that contains silicon nitride having a mean particle size of from 0.5 to 10 μm. The method for producing the tooth-cleaning composition comprises mixing powder of silicon nitride, powder of natural wax, and a solution that contains a water-soluble polymer followed by stirring the resulting mixture until its viscosity at 25° C. reaches from 100,000 to 500,000 cps. Not containing expensive diamond powder but containing silicon nitride powder, a type of ceramics of high hardness, the tooth-cleaning composition of the invention effectively removes staining matters such as tar of tobacco and tea incrustation from teeth merely by cleaning teeth with it in a simplified manner.