IMPLANT OF A BIOCORRODIBLE METALLIC MATERIAL AND ASSOCIATED PRODUCTION METHOD
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United States of America Patent
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Issued Date -
Oct 7, 2010
app pub date -
Mar 4, 2010
filing date -
Apr 2, 2009
priority date (Note) -
Abandoned
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Abstract
The invention relates to an implant of a biocorrodible metallic material with a passivating coating of a nanoparticle-containing silane coating and an associated method for producing the implant. To this end, the method comprises the steps: (i) Providing a blank for the implant comprising the biocorrodible metallic material, and (ii) Coating the blank with a homogenous colloidal solution of A) one or more bis-silanes of the formula (1): (RO).sub.3--Si--X--Si(OR).sub.3 (1) wherein R stands individually selected for C.sub.1-C.sub.10 alkyl or C.sub.2-C.sub.10 acyl; and X is a substituted or unsubstituted C.sub.1-C.sub.20 alkanediyl group or a substituted or unsubstituted C.sub.1-C.sub.20 heteroalkanediyl group with 1 to 5 heteroatoms selected from the group O, N and S; and B) Silicon dioxide nanoparticles with an average particle diameter in the range of 10 nm to 1 .mu.min water, ethanol or a mixture of the same, wherein the solution contains 1 to 20% by volume bis-silane and the concentration of the silicon dioxide nanoparticles in the solution is in the range of 1 to 100 ppm.
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