ƯÇã
ƯÇã¹øÈ£ | ƯÇã³»¿ë |
---|---|
10-1421194 | Purification method of mixed organic electroluminescent material |
10-1525814 | Method for refining of organic electroluminescent material using the mixed absorbent |
10-1403470 | Method for refining of recovered organic electroluminescent material |
10-1319822 | Method for recycling recovered organic material,KR/CN |
10-1289792 | Purification method of organic electroluminescent material, KR/PCT/CN |
10-1363241 | Method for refining of high purity organic electroluminescent material |
10-1403471 | Recycling method for recovered doping materials |
10-1268916 | Method for recovering organic electroluminescent material, KR/PCT/CN |
10-1937332 | Purification method of Terephthalylidene dicamphor sulfonic acid |