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:
May. 08, 1990
Filed:
Feb. 26, 1988
Eiichi Masuhara, Tokyo, JP;
Yoshinori Kadoma, Tokyo, JP;
Takeo Matsumoto, Sakuramura, JP;
Takeshi Komai, Aichi, JP;
Eiichi Yamada, Sakuramura, JP;
Osamu Nakachi, Yokohama, JP;
Godo Irukayama, Yatabemachi, JP;
Nippon Oil and Fats Co., Ltd., Tokyo, JP;
Abstract
A light curable dental composition is provided. The composition comprises an ethylenic unsaturated compound and a light polymerization initiator. The light polymerization initiator is a combination of an .alpha.-diketone and a polyperoxy ester containing a benzophenone group and represented by the general formula (I) of: ##STR1## wherein R.sub.1 and R.sub.1 ' represent a tertiary alkyl group or a tertiary aralkyl group and R.sub.2 and R.sub.2 ' represent a hydrogen atom, a tertiary alkoxy group or a tertiary aralkyloxy group.