发明授权
- 专利标题: Dental resin cements having improved handling properties
- 专利标题(中): 牙科树脂水泥具有改善的处理性能
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申请号: US10315505申请日: 2002-12-10
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公开(公告)号: US06939900B2公开(公告)日: 2005-09-06
- 发明人: Paula D. Ario , Steven M. Aasen , Brian N. Holmes
- 申请人: Paula D. Ario , Steven M. Aasen , Brian N. Holmes
- 申请人地址: US MN St. Paul
- 专利权人: 3M Innovative Properties Company
- 当前专利权人: 3M Innovative Properties Company
- 当前专利权人地址: US MN St. Paul
- 主分类号: A61K6/00
- IPC分类号: A61K6/00 ; A61K6/083 ; A61K6/087 ; A61P1/02
摘要:
Dental resin cement materials having unique handling properties are provided that comprise a) filler, b) polymerizable resin, and c) a polymeric handling modifier that is dispersed in the polymerizable resin at 25° C. and that has a molecular weight of between about 500 and 100,000. Components a) b) and c) are present in an amount effective to achieve a Viscosity vs Shear Rate Curve that fits a power law model of F(x)=AxB. The correlation value of the material to this curve is greater than 0.85 for both the increasing and decreasing shear rate curves, and the value of B is less than about −0.01.Resin cements are also provided that comprise acid functionality and water, but which do not comprise an acid reactive filler. Such cements may be self etching, thereby avoiding the need to carry out a separate acid etch step.
公开/授权文献
- US20030114554A1 Dental resin cements having improved handling properties 公开/授权日:2003-06-19
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