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:
Oct. 08, 1991
Filed:
Mar. 17, 1989
Koichi Okada, Kurashiki, JP;
Ikuo Omura, Kurashiki, JP;
Kuraray Company, Ltd., Kurashiki, JP;
Abstract
Curable resinous compositions which comprise (a) a metal element-containing inorganic filler which has been treated with an oxo acid of pentavalent phosphorus or a derivative thereof, which has the general formula: ##STR1## wherein A.sub.1 is an organic group having at least one ethylenic double bond capable of radical polymerization and containing 5 to 60 carbon atoms, A.sub.2 is a hydroxyl or mercapto group, a halogen atom or an organic group containing 1 to 60 carbon atoms, at least one of A.sub.1 and A.sub.2 contains at least one hydrocarbyl group containing 4 to 60 carbon atoms, X.sub.1 is an oxygen or sulfur atom and X.sub.2 is a hydroxyl or mercapto group of a halogen atom, and (b) at least one monomer capable of radical polymerization which is selected from the group consisting of methacrylates and acrylates, are useful for the production of cured articles which may be used in dentistry.