发明名称 |
Polyisobutylene toughened poly(methyl methacrylate) |
摘要 |
A bone cement is prepared by synthesizing a polymeric composition comprising poly(methyl methacrylate) cross-linked by copolymerization with tris( omega -methacryloyl) polyisobutylene. A powder is formed from the composition, and the final cement is prepared by mixing the powder with additional methyl methacrylate in the presence of a catalyst to form a dough-like material that is polymerized in situ to yield a cement useful for orthopedic purposes. Preferred embodiments employ tris( omega -methacryloyl) compounds within a particular molecular weight range, and which are present in the powder in particular amounts relative to the poly(methyl methacrylate) component therein.
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申请公布号 |
US5242983(A) |
申请公布日期 |
1993.09.07 |
申请号 |
US19920854421 |
申请日期 |
1992.03.19 |
申请人 |
EDISON POLYMER INNOVATION CORPORATION |
发明人 |
KENNEDY, JOSEPH P.;RICHARD, GRETCHEN C.;ASKEW, MICHAEL J. |
分类号 |
A61F2/46;A61L24/06;C08F290/04 |
主分类号 |
A61F2/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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