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:
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:
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 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:
A coating liquid for forming a transparent coating comprising fine particles of an inorganic compound and a hydrolyzate of an organosilicon compound represented by the general formula (I): RnSi(OR′)4−n (I) wherein R and R′ represent organic groups which may be identical to each other or different from each other, and n is an integer of 1 to 3. This coating liquid ensures excellent substrate wettability and compatibility with various organic solvents so that the printability and applicability thereof are desirable, with the result that a transparent coating film of high uniformity, for example, a flattening coating film, can be formed. The present invention comprises a substrate having a transparent coating film formed on the substrate surface from the above coating liquid.
摘要:
There is provided a process for producing an integrated circuit, wherein not only can conductive fine particles be deposited efficiently and densely in minute wiring channels and connecting holes but also a circuit of low wiring resistance and high density can be formed and wherein a high-degree integration can be achieved to thereby bring about an economic advantage. In particular, there is provided a process for producing an integrated circuit, comprising coating a substrate provided with wiring channels with a coating liquid for integrated circuit formation containing conductive fine particles to thereby form an integrated circuit on the substrate, wherein the coating liquid for integrated circuit formation while being exposed to ultrasonic waves is applied to the wiring channels.
摘要:
A coating liquid for forming porous silica coating, comprising a product of reaction between a short fiber silica and a hydrolyzate of an alkoxysilane of the formula XnSi(OR)4-n or a halogenated silane of the formula XnSiX′4-n (in the formula, X represents a hydrogen atom, a fluorine atom, an alkyl group having 1 to 8 carbon atoms, an aryl group or a vinyl group; R represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aryl group or a vinyl group; X′ represents a chlorine atom or a bromine atom; and n is an integer of 0 to 3). A coated substrate comprising a porous silica coating film formed from the above coating liquid for forming porous silica coating. A short fiber silica having an average diameter (D) of 10 to 30 nm, a length (L) of 30 to 100 nm and an aspect ratio (L/D) of 3 to 10. The above coating liquid for forming porous silica coating enables forming an insulating film which is excellent in adherence to a substrate surface, mechanical strength, chemical resistance and crack resistance and enables flattening irregularities of a substrate surface to a high degree. The coating film of the coated substrate has the above excellent properties.
摘要:
The present invention provides a method of forming on a substrate a particle layer highly adherent to the substrate, which comprises the steps of spreading a dispersion (I) comprising a dispersing medium and, dispersed therein, solid particles being surface treated with a compound acting as a binder on a liquid (II) having a specific gravity higher than that of the dispersing medium, said liquid (II) being immiscible with the dispersing medium, subsequently removing the dispersing medium from the dispersion (I) to thereby arrange the solid particles on the liquid (II) so that a particle layer is formed on the liquid (II) and thereafter transferring the particle layer onto a substrate. Moreover, the present invention provides a method of planarizing an irregular surface of a substrate, which comprises transferring the above particle layer to an irregular surface of a substrate and removing parts of the particle layer formed on protrudent parts of the substrate to thereby planarize the irregular surface of the substrate and also provides a particle-layer-formed substrate comprising a substrate and, superimposed on a surface thereof, the particle layer obtained by each of the above methods.
摘要:
A coating liquid for forming porous silica coating, comprising a product of reaction between a short fiber silica and a hydrolyzate of an alkoxysilane of the formula X.sub.n Si(OR).sub.4-n or a halogenated silane of the formula X.sub.n SiX'.sub.4-n (in the formula, X represents a hydrogen atom, a fluorine atom, an alkyl group having 1 to 8 carbon atoms, an aryl group or a vinyl group; R represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, an aryl group or a vinyl group; X' represents a chlorine atom or a bromine atom; and n is an integer of 0 to 3). A coated substrate comprising a porous silica coating film formed from the above coating liquid for forming porous silica coating. A short fiber silica having an average diameter (D) of 10 to 30 nm, a length (L) of 30 to 100 nm and an aspect ratio (L/D) of 3 to 10. The above coating liquid for forming porous silica coating enables forming an insulating film which is excellent in adherence to a substrate surface, mechanical strength, chemical resistance and crack resistance and enables flattening irregularities of a substrate surface to a high degree. The coating film of the coated substrate has the above excellent properties.