Patent WO1993016738A1 successfully refreshed from Google Patents.
WO1993016738A1
Expired / Lapsed
WO
⏱️ 0.0 years remaining
Bioactive cement
Assignee: Nippon Electric Glass Co Ltd
•
Filing: 1993-02-26
•
Granted: —
•
Expires: 2013-02-26
Abstract
Abstract A bioactive cement comprises a filler consisting of nonalkali glass powder containing Ca, monomer containing hydrophilic dimethacrylate, a polymerization starter, and a polymerization promoter. The nonalkali glass powder containing Ca comprises a composition by weight of 40-50 % CaO, 30-40 % SiO2, 10-20 % P2O5, 0-10 % MgO, and 0-2 % CaF2. The hydrophilic dimethacrylate is 2,2-bis[4-(3-methacryloxy-2-hydroxy propoxy)phenyl] propane. The bioactive cement is capable of forming a hydroxyapatite layer on a surface of a hardened cement body when the hardened cement body is brought into contact with body fluid.
Inventors
- 👤 Takao Yamamuro
- 👤 Takashi Nakamura
- 👤 Keiichi Kawanabe
- 👤 Takehiro Shibuya
- 👤 Satoru Yoshihara
Bibliographic Details
Application Number
—
Jurisdiction
WO
Data Source
google_patents
Last Synchronized
2026-10-23 05:17
CPC Classifications
A; A61; A61L; A61L24/00; A61L24/0047; A61L24/0073; A61L24/0084; A61L24/0089; A61L2430/00; A61L2430/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.