Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1998-03-13
2000-02-01
Merriam, Andrew E. C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523117, 524533, 522 69, 623 16C, A61L 2500, C08L 3102
Patent
active
06020396&
ABSTRACT:
Improved bone cement compositions and method of fixing a prosthetic implant to a bone using said improved bone cement compositions. More particularly, bone cement compositions having enhanced fatigue strength and consequently an increased projected service life when placed in a patient to fix a prosthetic implant securely in place. Specifically, bone cement compositions comprising a conventional poly[(methyl methacrylate)-styrene] copolymer based bone cement consisting of a liquid component and a dry powder component, and poly(butyl methacrylate) powder wherein at least a trace but no more than 5 wt % of the dry powder component is replaced by an equal mass of the poly(butyl methacrylate) powder.
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A Reduced-Modulus Acrylic Bone Cement: Preliminary Results, Journal of Orthopaedic Research, 8:623-626 Raven Press, Ltd., New York, 1990.
Merriam Andrew E. C.
Monahan Thomas J.
The Penn State Research Foundation
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