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. 13, 1999
Filed:
Aug. 11, 1997
Applicant:
Inventors:
Duncan E Waller, Ypsilanti, MI (US);
Emil Jandourek, Livonia, MI (US);
Assignee:
The Kerr Corporation, Orange, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C08G / ;
U.S. Cl.
CPC ...
523116 ; 523117 ; 524317 ; 524599 ; 528148 ; 4332281 ; 514160 ;
Abstract
Dental resins and dental compositions utilizing such resins are described. The dental compositions are particularly useful as cavity liners and root canal sealants which contain calcium hydroxide (or calcium oxide) and which are utilized to deliver calcium to exposed dental pulp. The resins, and resin-containing compounds, include eutectic mixtures of polyfunctional salicylates. In particular, the transesterification of a blend of trimethylolpropane and neopentylglycol with methyl salicylate yields a blend of trimethylolpropanetrisalicylate and neopentylglycoldisalicylate, which is contemplated by the present invention.