摘要:
Composite Carticles comprise white inorganic particles, a surface modifier coating layer provided on the surface of the white inorganic particles, and a dye or lake coat provided on the surface of the surface modifier coating layer. The composite particles not only exhibit excellent color-developing property and tinting strength but also suppress bleeding. They are used in paints and resin compositions.
摘要:
A magnetic color toner comprises a binder resin, a colorant and magnetic composite particles having an average particle diameter of 0.06 to 10.0 µm and comprising: magnetic core particles, a gluing agent coating layer which is provided on the surface of said magnetic particles, and an organic yellow-based pigment coat, an organic red-based pigment coat or an organic blue-based pigment coat which is provided on said gluing agent coating layer in an amount of from 1 to 200 parts by weight per 100 parts by weight of said magnetic core particles. The magnetic color toner exhibits not only a clear hue but also an excellent light resistance.
摘要:
Black composite particles for semiconductor sealing material, comprise: an extender pigment as a core particle; and a black pigment provided on the surface of the extender pigment in an amount of 1 to 100 parts by weight per 100 parts by weight of the extender pigment. Such black composite particles not only exhibit enhanced blackness, moisture resistance, fluidity and tinting strength but also show an excellent dispersibility in binder resins. The resulting semiconductor sealing material is capable of exhibiting a high volume resistivity as well as excellent blackness, moisture resistance, soldering heat resistance, flowability and flexural strength.
摘要:
A colour agent for a road marking material comprising composite particles having an average particle diameter of 0.01 to 10.0 µm, said composite particles comprising: inorganic particles; a gluing agent coating layer provided on the surface of said inorganic particles; and an organic pigment coat provided on said gluing agent coating layer in an amount of from 1 to 500 parts by weight per 100 parts by weight of said inorganic particles.
摘要:
A colorant for ink-jet printing ink, having an average particle diameter of 0.001 to 0.15 µm, and comprising: extender pigments as core particles; a gluing agent coating layer formed on at least a part of the surface of said core particle; and an organic pigment coat uniformly formed on at least a part of said gluing agent coating layer. The colorant for ink-jet printing ink exhibits not only a high tinting strength and a clear hue, but also excellent dispersibility and light resistance in spite of fine particles.
摘要:
Non-magnetic black particles containing: (i) Fe as a main component; (ii) from 5 to 40% by weight of manganese based on the weight of the particles; (iii) not more than 500 ppm of a soluble sodium salt calculated as Na; and (iv) not more than 200 ppm of a soluble sulfate calculated as SO4; and having: (a) a hematite structure; (b) an average particle size or trom 0.1 to 10.0 mu m; and (c) a pH of not less than 5.5.
摘要:
Non-magnetic composite particles suitable for a black toner have an average particle diameter of 0.06 to 1.0 µ m, and comprise:
(a) hematite particles, (b) a coating on the surface of said hematite particles, comprising at least one organosilicon compound selected from:
(1) organosilane compounds obtainable from alkoxysilane compounds, and (2) polysiloxanes or modified polysiloxanes, and
(c) an organic blue-based pigment coat which is provided on said coating (b), in an amount of from 1 to 50 parts by weight per 100 parts by weight of said hematite particles.
摘要:
A magnetic recording medium comprises a non-magnetic base film; and a magnetic recording layer comprising a binder resin, magnetic particles and a black filler having an average diameter of 0.08 to 1.0 µm and comprising:
hematite particles as core particles; a coating formed on the surface of said hematite particles, comprising at least one organosilicon compound selected from:
(1) organosilane compounds obtainable from alkoxysilane compounds, and (2) polysiloxanes or modified polysiloxanes; and
a carbon black coat which is provided on said coating layer in an amount of from more than 30 to 60 parts by weight based on 100 parts by weight of said hematite particles.
摘要:
A black magnetic toner comprises a binder resin and black magnetic composite particles having an average particle diameter of 0.06 to 1.0 µm and comprising:
(a) magnetic iron oxide particles; (b) a coating layer on the surface of said magnetic iron oxide particles, comprising at least one organosilicon compound selected from:
(1) organosilane compounds obtainable from alkoxysilane compounds, and (2) polysiloxanes or modified polysiloxanes; and
(c) a carbon black coat which is provided on said coating layer in an amount of 26 to 55 parts by weight per 100 parts by weight of said magnetic iron oxide particles.