| 摘要 |
PCT No. PCT/EP98/00930 Sec. 371 Date Oct. 26, 1998 Sec. 102(e) Date Oct. 26, 1998 PCT Filed Feb. 18, 1998 PCT Pub. No. WO98/38254 PCT Pub. Date Sep. 3, 1998Multilayer interference pigment consisting of a central layer of a transparent or semitransparent material of low refractive index and alternating layers of a metal or of a material of high refractive index and of a material of low refractive index either side of the central layer, the material of low refractive index preferably being magnesium fluoride or acrylate and the metal preferably being aluminium or chromium. |
