The present invention discloses a catalyst composition for olefinic polymerization. Said invention provides its structure formula, and when said catalyst is combined with proper activating agent, it has high activity for olefinic polymerization.
[Detail]
Diastereoselective Epoxidation Of Allylically Substituted Alkenes Using Metalloporphyrins As Catalyst Provides High Trans-Selectivities (I.E., Trans-:Cis-Epoxide Ratio). A Diversity Of Cycloalkenes Bearing Different Allylic Substituents Are Shown To Be Efficiently Epoxidized To Afford The Correspond.....
[Detail]
The Present Invention Relates To An Internal Anterior Transpedicular Fixation System And A Method For Rigidly Fixing The Spine Anteriorly At The Level Above And Below A Thoracolumbar Burst Fracture Or Tumor. The Internal Anterior Transpedicular Fixation System Has A Support Member Defining A Plurali.....
[Detail]
A Composition For Use As A Bioactive Bone Cement Having A Powder Component Including Strontium-Containing Hydroxy Apatite And Formulated To Create A Settable Fluid Substance When Mixed With A Liquid Component. The Liquid Component Includes A Bisphenol A Diglycidylether Dimethacrylate Resin Which Whe.....
[Detail]
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