NOVELTY - The component partially or wholly comprises pigmented ceramic. The pigment comprises nanoparticles of metal of group IB in periodic table, alkaline metals or their alloy, coated with a layer of silica such as crystalline silica. The crystalline silica is in cristobalite or tridymite form. The metal is gold or gold/silver alloy. The ceramic is zirconia and/or alumina, preferably zirconia. USE - Pigmented-ceramic component such as timepiece components e.g. watch container, dial, bezel, bracelet and pins, jewel, jewelry components (all claimed), and accessories such as winders. ADVANTAGE - The color effect of pigmented-ceramic component is strong, bright and stable for long period of time. The manufacture of pigmented-ceramic component is environment-friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of components of timepiece and jewelry.
37395945
EP Application No : 06405325.9-1218
Alternative title(s) : (de) Pigmentierter keramischer körper (fr) Piéce en céramique pigmentée (en) Pigmented ceramic element
Patent number | Country code | Kind code | Date issued |
JP5467713 | JP | B2 | 2014-04-09 |
CN101116910 | CN | B | 2011-07-06 |
US7897253 | US | B2 | 2011-03-01 |
HK1119443 | HK | A1 | 2010-07-23 |
DE602006009921 | DE | D1 | 2009-12-03 |
EP1887052 | EP | B1 | 2009-10-21 |
DE06405325 | DE | T1 | 2008-09-25 |
JP2008031039 | JP | A | 2008-02-14 |
EP1887052 | EP | A1 | 2008-02-13 |
CN101116910 | CN | A | 2008-02-06 |
US2008026207 | US | A1 | 2008-01-31 |