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:
Nov. 23, 1993
Filed:
Oct. 19, 1990
Applicant:
Inventors:
Nobuo Nakabayashi, Matsudo-shi, Chiba 270, JP;
Kazuhiko Ishihara, Kodaira, JP;
Takashi Yamamoto, Kuga, JP;
Assignees:
Other;
Mitsui Petrochemical Industries, Ltd., Tokyo, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ; A61F / ; A61C / ; C08L / ;
U.S. Cl.
CPC ...
424423 ; 4332011 ; 4332121 ; 523115 ; 623 16 ;
Abstract
Disclosed is a bone cement composition comprising polyalkyl methacrylate derived from methacrylate having an alkyl group of 1-4 carbon atoms, hydroxyapatite, alkyl methacrylate having an alkyl group of 1-4 carbon atoms, 4-(2-methacryloyloxyethyl)trimellitic acid or anhydride thereof, and a polymerization initiator. Also disclosed are a cured product of the composition, an implant material using the composition and a process for the preparation of the implant material.