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:
Jul. 12, 2011
Filed:
Dec. 19, 2008
Applicants:
Kuo-huang Hsieh, Taipei, TW;
Chun-pin Lin, Taipei, TW;
Ken-hsuan Liao, Taipei, TW;
Chung-yi Lee, Taipei, TW;
Inventors:
Kuo-Huang Hsieh, Taipei, TW;
Chun-Pin Lin, Taipei, TW;
Ken-Hsuan Liao, Taipei, TW;
Chung-Yi Lee, Taipei, TW;
Assignee:
National Taiwan University, Taipei, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 6/09 (2006.01); A61K 6/02 (2006.01); A61K 6/087 (2006.01); C08G 18/04 (2006.01); C08G 18/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention discloses an endodontic sealer which comprises a urethane-monoacrylate oligomer, a diluting monomer, at least one photo-initiator, at least one thermal-initiator, and a filler, wherein the urethane-monoacrylate oligomer is obtained by firstly reacting the acrylate with the diisocyanate to form an intermediate with only one isocyanate group, and then reacting the intermediate with the polyol to form the desired urethane-monoacrylate oligomer.