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:
Dec. 05, 1995
Filed:
Jul. 21, 1994
Applicant:
Inventors:
Assignee:
501 Espe Stiftung & Co. Produktions-Und, Seefeld, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; A61C / ; C08J / ; C08K / ;
U.S. Cl.
CPC ...
522-4 ; 522 28 ; 522908 ; 522913 ; 523116 ; 4332281 ; 433215 ;
Abstract
The invention relates to photopolymerizable dental compositions of ethylenically unsaturated monomers and/or polymers thereof which are curable in two curing steps. Besides being comprised of fillers, said compositions also contain a photoinitiator component I having a light absorption maximum of <450 nm and a molar extinction of the light absorption of <10 at wavelengths of 470 nm or higher, and a photoinitiator component II having a molar extinction of the light absorption of >20 at least at one wavelength of at least >450 nm.