摘要:
In a process for preparing spherical particles of hydroxide having a particle diameter of from 0.1 to 10 .mu.m by adding a corresponding metal alkoxide to a dispersion of water-alcohol system having dispersed therein a metal oxide or hydroxide as a seed, under alkaline conditions and allowing a decomposition product from said metal alkoxide to attach onto said seed to effect particle growth of the seed, the improvement which comprises maintaining said dispersion at a substantially constant pH within the range between 10 and 13 during the addition of the metal alkoxide to said dispersion and the subsequent particle growth of the seed, thereby to prepare mono-dispersed particles substantially free from particle aggregation having a sharp particle size distribution of a standard deviation of not greater than 0.5. The white particles so prepared may be, after separation, heat treated to provide black particles. The white or black particles may be coated with a synthetic resin in the surface. The products are useful particularly as spacers for liquid crystal display devices.
摘要:
In a process for preparing spherical particles of a metal oxide or hydroxide having a particle size of from 0.1 to 10 .mu.m by adding a corresponding metal alkoxide to a dispersion of water-alcohol system having dispersed therein a metal oxide or hydroxide as a seed, under alkaline conditions and allowing a decomposition product from said metal alkoxide to attach onto said seed to effect particle growth of the seed, the improvement which comprises maintaining said dispersion at a substantially constant pH within the range between 10 and 13 during the addition of the metal alkoxide to said dispersion and the subsequent particle growth of the seed, thereby to prepare mono-dispersed particles substantially free from particle aggregation having a sharp particle size distribution of a standard deviation of not greater than 0.5. The white particles so prepared may be, after separation, heat treated to provide black particles. The white or black particles may be coated with a synthetic resin in the surface. The products are useful particularly as spacers for liquid crystal display devices.
摘要:
Transparent conductive coatings excellent in transparency are provided on substrates such as glass, plastics, etc. by the use of conductive coating materials obtained by maintaining aqueous solutions of hydrolyzable tin containing or indium containing compounds at pH of 8-12, and gradually hydrolyzing said compounds in the solutions to form sols containing colloidal particles, followed by drying and calcining.
摘要:
Transparent conductive coatings excellent in transparency are provided on substrates such as glass, plastics, etc. by the use of conductive coating materials obtained by maintaining aqueous solutions of hydrolyzable tin containing or indium containing compounds at pH of 8-12, and gradually hydrolyzing said compounds in the solutions to form sols containing colloidal particles, followed by drying and calcining.
摘要:
The material obtained by coating a small plate substrate with a metal oxide doped with different metals is light permeable as well as conductive, wherein said plate substrate is selected from mica, illite, bravaisite, kaolinite, bentonite, montmorillonite, smectites, calcium phosphate and glass particle and its ratio of major axis to minor axis is 1-30 and its ratio of minor axis to thickness is 5 or more. This material is useful as the additive for providing a transparent film with conductivity.
摘要:
In accordance with the present invention, there are provided coating liquids for forming conductive coatings, which comprise (i) a zirconium oxysalt, (ii) a conductive substance and, if necessary, (iii) at least one member selected from non-sedimentary silica dispersion and silicon alkoxide or its derivative. The coating liquids, when coated on substrates, form thereon transparent conductive coatings which are excellent in transparency, scratch resistance, permanence properties and adhesion to the substrates and, moreover, excellent in antistatic effect. In particular, when the coating liquids for forming conductive coatings mentioned above are coated by the spray method on appropriate substrates followed by drying and/or heating, there are obtained face-plates for display devices, which have excellent regular reflection reducing effect (non-glare) and antistatic effect.
摘要:
In accordance with the present invention, there are provided coating liquids for forming conductive coatings, which comprise (i) a zirconium oxysalt, (ii) a conductive substance and, if necessary, (iii) at least one member selected from non-sedimentary silica dispersion and silicon alkoxide or its derivative. The coating liquids, when coated on substrate, form thereon transparent conductive coatings which are excellent in transparency, scratch resistance, permanence properties and adhesion to the substrates and, moreover, excellent in antistatic effect. In particular, when the coating liquids for forming conductive coatings mentioned above are coated by the spray method on appropriate substrates followed by drying and/or heating, there are obtained face-plates for display devices, which have excellent regular reflection reducing effect (non-glare) and antistatic effect.
摘要:
In accordance with the present invention, there are provided coating liquids for forming conductive coatings, which comprise (i) a zirconium oxysalt, (ii) a conductive substance and, if necessary, (iii) at least one member selected from non-sedimentary silica dispersion and silicon alkoxide or its derivative. The coating liquids, when coated on substrates, form thereon transparent conductive coatings which are excellent in transparency, scratch resistance, permanence properties and adhesion to the substrates and, moreover, excellent in antistatic effect. In particular, when the coating liquids for forming conductive coatings mentioned above are coated by the spray method on appropriate substrates followed by drying and/or heating, there are obtained face plates for display devices, which have excellent regular reflection reducing effect (non-glare) and antistatic effect.
摘要:
In accordance with the present invention, there are provided coating liquids for forming conductive coatings, which comprise (i) a zirconium oxysalt, (ii) a conductive substance and, if necessary, (iii) at least one member selected from non-sedimentary silica dispersion and silicon alkoxide or its derivative. The coating liquids, when coated on substrates, form thereon transparent conductive coatings which are excellent in transparency, scratch resistance, permanence properties and adhesion to the substrates and, moreover, excellent in antistatic effect. In particular, when the coating liquids for forming conductive coatings mentioned above are coated by the spray method on appropriate substrates followed by drying and/or heating, there are obtained face-plates for display devices, which have excellent regular reflection reducing effect (non-glare) and antistatic effect.
摘要:
Disclosed are transparent conductive ceramiccoated substrates having a surface resistance of 10.sup.3 -10.sup.11 .OMEGA./.quadrature., a total light transmission of at least 85% and a haze of less than 10%, said coated substrates being prepared by coating on the substrate a water organic solvent mixture type coating liquid containing dialkoxy-bisacetylacetonato zirconium, a partial hydrolysate of silicon alkoxide and a conductive substance, processes for preparing said coated substrates, and display and copy machine using said coated substrates.