摘要:
The present invention is related to magnetic pigments comprising a transparent flaky homogeneously composed substrate having two parallel major surfaces and a coating comprising maghemite, to a process for the production of said pigments as well as to their use.
摘要:
Disclosed are a flaky pigment in which the surfaces of fine flaky grains, as a pigment base, have been coated with ultra-fine barium sulfate grains having a mean grain size of 0.1 .mu.m or less. The pigment is produced by a process comprising reacting:(a) an aqueous solution containing a complexing agent capable of forming a complex compound with barium ion, as dissolved therein;(b) an aqueous solution containing a water-soluble barium compound as dissolved therein; and(c) an aqueous solution containing sulfate ion. The invention involves this method of preparing the flaky pigment, and use of the pigment in pigment coloration of cosmetics, top coats for cars, plastics, printing inks, domestic electrical appliances, coating materials and coating paints for building materials.
摘要:
Colored flaky colored pigments are obtained by uniformly adhering a finely divided color pigment onto a flaky substrate by the use of an high molecular weight organic compound as a binder.
摘要:
The present invention relates to porous magnesia of substantially spherical shape having a silica layer, which may be used as a carrier for deodorants, antibacterials, catalysts, slow action agents (the adsorbent having the possibility of decreasing the effect of the co-administered medicines or fertilizer and plastic additives, and body pigments.
摘要:
An iridescent multilayer pigment having at least two or more layers of metal oxides containing one or more metals selected from Ce, Sn, Ti, Fe, Zn and Zr which are coated onto the surface of thin platelet-like substrates. The inventive pigments show high brilliance and high chroma, in particular in cases in which thin platelet-like substrates having a fine average particle diameter are used. The pigment is useful in paints, printing inks, lacquers, plastics, dopants for laser marking, non-dusting pigment products, non-dusting pigment granules or cosmetics.
摘要:
Pigments of flake substrate coated with calcium carbonate wherein the surface of the flake substrate is coated with fine particles of calcium carbonate. The pigment may be manufactured by a method where calcium carbonate in fine particles is separated out and coated on the surface of the flaky substrate by the reaction of a calcium salt with a carbonate in a suspension of the flake substrate. It can be used as an extender particularly for cosmetics exhibiting appropriate adhesion to skin, low luster and excellent wrinkle-hiding effect, prevention of unpleasant feel due to perspiration, sebum absorbing property, etc.
摘要:
An ultraviolet radiation shielding pigment having a high power of shielding of ultraviolet radiation, particularly UV-A, a low cohesive force, and excellent extensibility and adhesiveness as a pigment for cosmetics. A pigment for shielding an ultraviolet radiation which comprises a flaky powder having particle surfaces coated with particles of barium sulfate having an average diameter of 0.1 to 2.0 microns, and with needle crystal particles of zinc oxide having an average major-axis diameter of 0.05 to 1.5 microns, and a process for manufacturing it.
摘要:
Composite fine particles of metal oxides containing titanium dioxide which produce a remarkable ultraviolet screening effect over the entire region of spectrum. Each particle is composed of a core and a surface layer, said core being composed of a nucleus formed from (a) titanium dioxide or (b) iron oxide or (c) a mixture of iron oxide and titanium dioxide and an outer layer of titanium dioxide, said surface layer being formed from metal oxides of magnesium and calcium.
摘要:
Disclosed is an anti-discoloring pearly luster pigment of white titanium dioxide-coated mica grains wherein; (a) the surfaces of the titanium dioxide and/or titanium oxide hydrate coated mica particles are coated with from 1 to 7 parts by weight, to 100 parts by weight of the titanium dioxide and/or titanium oxide hydrate coated mica particles, of a silicon oxide and/or silicon oxide hydrate; (b) the surfaces of the coated grains are further coated with from 0.5 to 5 parts by weight, to 100 parts by weight of the mica titanium dioxide and/or titanium oxide hydrate coated particles, of an aluminium oxide and/or aluminum oxide hydrate; and (c) the surfaces of the coated particles are still further coated with from 0.5 to 3 parts by weight, to 100 parts by weight of the titanium dioxide and/or titanium oxide hydrate coated mica particles, of a zinc oxide and/or zinc oxide hydrate.
摘要:
A porous carrier for a catalyst comprising metal coated with metal oxide grains having a mean grain size of 150 nm or less and a mean pore diameter of 5.5 nm or less, is obtained by subjecting:(a) stainless steel;(b) (i) a metal alkoxide or (ii) a metal alkoxide and a metal acetate salt, both being soluble in alcohols;(c) a diol, cellosolve, or polyether which has coordinating capacity with the (i) metal alkoxide or (ii) metal alkoxide and metal acetate salt and which is soluble in alcohols; and(d) an alcohol solvent to hydrolysis and polycondensation, whereby the stainless steel is coated with an oxygen-containing organic metal compound and, subsequently, heat-treated to form a metal oxide. A method of preparing the catalyst is also provided.