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. 20, 1990
Filed:
Aug. 29, 1988
Noboru Yamazaki, Tokyo, JP;
Shigeaki Kurata, Kokubunji, JP;
Toshiharu Yagi, Takarazuka, JP;
Hiroshi Inukai, Settsu, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A dental material comprising a copolymer which comprises at least 10% by weight of a polymeric unit of at least one of the following monomers: ##STR1## wherein R.sup.1 and R.sup.2 are each H, CH.sub.3 or CF.sub.3, R.sup.3 is H, CH.sub.3 or F, A is --CH.sub.2 --, --CH.sub.2 CH.sub.2 --, --CH.sub.2 CH(CH.sub.3)--, --CH(OH)--, --CH.sub.2 CH(OH)CH.sub.2 --, --CH(OCOCH.sub.3)--or --CH.sub.2 CH(OCOCH.sub.3 (CH.sub.2 --, A' is the same group as A or --CH.sub.2 CH.sub.2 CH.sub.2 --, 2 is an alkylene group having 2 to 10 carbon atoms, m and n are each zero or a number of 1 to 5, p is a number of 1 to 3, q is a number of 1 to 5, provided that at least one of R.sup.1 and R.sup.2 is CF.sub.3 when R.sup.3 is H or CH.sub.3.