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. 26, 1996
Filed:
Feb. 28, 1994
Applicant:
Inventors:
Bing Wang, Maplewood, MN (US);
Sumita B Mitra, West St. Paul, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
106 35 ; 4332281 ; 523116 ;
Abstract
A curable dental composition comprising an ethylenically unsaturated moiety, an oxidizing agent and metal complexed ascorbic acid is claimed. The incorporation of metal complexed ascorbic acid provides a curable composition that exhibits improved color stability. The metal complexed ascorbic acid is particularly useful as a component of a paste:paste glass ionomer dental cement.