公开(公告)号：EP0589868A4

公开(公告)日：1992-06-26

申请号：EP90916587

申请日：1990-10-18

申请人： RES CORP TECHNOLOGIES INC

发明人： HILL STEVEN C ,  PATEL RAMESH C ,  BARKER DELMAR L

IPC分类号： G03C1/00 ,  G03C1/015 ,  G03C1/035 ,  G03C1/72 ,  G03C1/815 ,  G03C5/08 ,  G11B7/251 ,  G11B7/24

CPC分类号： G11B7/251 ,  G03C1/035 ,  G03C1/72

摘要： Light sensitive recording media such as a silver halide photographic emulsion (10) or an optical recording disk or plate (50a or 50b). The photographic emulsion comprises a colloid or gel (12), and a multitude of silver halide particles (14) dispersed in that colloid. Each of these particles (16) includes at least a core (16a) surrounded by a shell (16b), one of the core and shell includes a silver halide (20c), and the other of the core and shell includes a dielectric (20a). The optical recording disk or plate comprises a solid, light reflecting or light transmitting substrate (52), a colloid (56) applied onto the substrate, and a multitude of particles (54), dispersed in that colloid. Each of these particles includes a core surrounded by a shell, and at least one of the core and shell consists essentially of a metal (20b).

公开(公告)号：EP0605408A4

公开(公告)日：1992-06-15

申请号：EP90916962

申请日：1990-10-18

申请人： RES CORP TECHNOLOGIES INC

发明人： PATEL RAMESH C ,  HILL STEVEN C

IPC分类号： G03C1/00 ,  G03C1/005 ,  G03C1/015 ,  G03C1/035 ,  C09C1/30 ,  C09C3/06

CPC分类号： G03C1/005

摘要： Methods of coating nanoparticles (30) with one or more layers of various types of materials such as metals (30b), polymers (30c) and halides (30d), and nanoparticles formed by those methods. A first embodiment of the invention is a method of forming silver halide (12b) coated dielectric nanoparticles (12a), and a second embodiment is a method of forming metal (14b) coated dielectric nanoparticles (14a). A first nanoparticle according to this invention comprises a dielectric nano-core and a silver halide coating; and a second nanoparticle comprises a dielectric nano-core, a metal shell over that core and a silver halide (14c) coating over the metal shell. A further nanoparticle of this invention comprises a dielectric nano-core (16a), a silver halide shell (16b) over the core and a metal shell (16c) over the silver halide; and a still further nanoparticle comprises a dielectric core (20a), a first shell of a first metal (20b) and a second shell (20c) of a second metal.