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:
Aug. 20, 2013
Filed:
Nov. 08, 2007
Koji Matsushige, Tsukuba, JP;
Takeshi Suzuki, Tsukuba, JP;
Shizuka Shimizu, Sakuragawa, JP;
Ayumi Dodomi, Tsukuba, JP;
Koji Matsushige, Tsukuba, JP;
Takeshi Suzuki, Tsukuba, JP;
Shizuka Shimizu, Sakuragawa, JP;
Ayumi Dodomi, Tsukuba, JP;
Tokuyama Dental Corporation, Taito-Ku, Tokyo, JP;
Abstract
An adhesive composition for dental use exhibiting acidic property, including a mixture of a polymerizable monomer component (A) containing a phosphoric acid-type polymerizable monomer having an acidic group derived from phosphoric acid, and a multivalent metal ion-releasing component (B), wherein the multivalent metal ion-releasing component (B) is capable of releasing at least earth metal ions, and in the composition, earth metal ions stemming from the component (B) are present together with the phosphoric acid-type polymerizable monomer in such an amount that a total valency ratio (R) defined by the following formula (1) is in a range of 0.2 to 3.0. The adhesive composition is capable of strongly adhering and fixing a composite resin or a prosthetic material to a tooth for extended periods of time maintaining stability.=TV/TV  (1)