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Methods of Making Functionalized Nanoparticles

Abstract: 

There are disclosed amphoteric nano-sized metal oxide particles functionalized with silyl esters of a phosphonate and composites thereof with an acrylate-based monomer, including liquid crystal monomers photopolymerizable at ambient temperature. Also disclosed are the method making such functionalized particular by reacting a metal oxide with a silyl ester of a phosphonate in the presence of a non-aqueous solvent and in an inert atmosphere and the method of making the composites wherein the functionalized particles are admixed with an acrylate-based matrix monomer, including liquid crystal monomers photopolymerizable at ambient temperature. Further disclosed is the method of dental repair wherein the composites are applied to a tooth and photopolymerized.

Patent Number: 
6,410,765
Date Of Issue: 
06/25/2002
Inventors: 

Stephen T. Wellinghoff; Hong Dixon; Henry R. Rawls; Barry K. Norling