Drug – bio-affecting and body treating compositions – Inorganic active ingredient containing – Phosphorus or phosphorus compound
Reexamination Certificate
2008-04-01
2008-04-01
Kennedy, Sharon E. (Department: 1615)
Drug, bio-affecting and body treating compositions
Inorganic active ingredient containing
Phosphorus or phosphorus compound
C427S002270, C427S002120
Reexamination Certificate
active
07351433
ABSTRACT:
Disclosed is a method for producing a transparent and homogenized polymeric sol of a calcium phosphate compound, containing apatite and having excellent wettability and bioactivity, according to a sol-gel synthesis, and a method for coating the polymeric sol on a metal implant, in which the polymeric sol is coated on the metal implant and then heat-treated to form a dense coated layer strongly bonded to the metal implant. The polymeric sol is obtained by process of preparing a calcium salt solution, containing calcium ethoxide dissolved in organic acid, and a phosphate solution, containing triethyl phosphite or triethyl phosphate dissolved in the organic acid, mixing the calcium salt solution with the phosphate solution to produce a mixed solution, and aging the mixed solution.
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Chang Bong Soon
Chung Sung Soo
Hong Kug Sun
Kim Jin Young
Lee Choon Ki
Kennedy Sharon E.
Rosenberg , Klein & Lee
Seoul National University Industry Foundation
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