摘要:
A floor polishing composition containing a film-formable organic high molecular material as the main component, which further contains at least scaly particles.
摘要:
A process for producing a hardenable composition with high storage stability containing scaly silica particles which consist essentially of foliar secondary silica particles and have a laminated structure, said process comprising: (1) a step of subjecting a silica sol, a silica hydrogel or hydrous silicic acid to hydrothermal treatment in the presence of an alkali metal salt to form tertiary agglomerated particles of the scaly silica in the form of porous three-dimensional disorderly agglomerates of foliar secondary silica particles, each secondary particle being formed by a parallel face-to-face alignment of a plurality of flaky primary particles which are overlaid one on another, and (2) a step of disintegrating and dispersing the tertiary agglomerated particles of silica in an organic polymer in the form of an aqueous emulsion by a wet method.
摘要:
A silica-metal oxide particulate composite comprising silica agglomerates having voids formed by random stacking of scaly silica primary particles, and metal oxide particulates supported on the surfaces, and the inner surfaces in the voids, of the silica agglomerates.
摘要:
Fine particulate silica gel having the following characteristics (1) to (3): (1) average particle size: from 1 to 200 &mgr;m; (2) oil absorption in accordance with JIS K5101: from 100 to 300 ml/100 g; and (3) hygroscopicity represented by moisture adsorption under a relative humidity of 90% at 25° C. in accordance with JIS Z0701: not more than 20 wt %.
摘要:
Scaly silica particles having a laminated structure, consisting essentially of secondary particles of foliar silica, each formed by a plurality of flaky primary particles of scaly silica which are overlaid one on another and aligned face-to-face in parallel with one another, said secondary particles being present independent of one another.
摘要:
The present invention provides the agricultural chemical-spreading agent composition, containing: (A) a polysaccharide in an amount of 5 to 30% by weight; (B) a polyoxyalkylene sorbitan fatty acid ester in an amount of 5 to 40% by weight; and (C) at least one nonionic surfactant selected from polyoxyalkylene alkyl ethers, sorbitan fatty acid esters, and silicone surfactants in an amount of 5 to 40% by weight, wherein the component (A) has a viscosity of not less than 5000 mPa·s in the form of a 5% by weight aqueous solution at 25° C., and a weight ratio of contents of the component (A) to the sum of components (B) and (C), (A)/[(B)+(C)], is 10/90 to 40/60.
摘要:
A illuminating device used for an document reading apparatus that has two rod shape light guides and light emitting elements where each of the light guides has a light emitting face and two flat light reflection faces, which may have a group of minute prisms that are formed along the longitudinal direction of the faces, and where light from each light emitting element is guided in the longitudinal direction by the light guide and reflected by that faces, such that the light is emitted from the light emitting face of each light guide and a virtual plane that is vertical to a longitudinal direction of each of the two light guides has two light intensity peaks.
摘要:
An object of this invention is to provide a responsive material gas concentration control system that can be mounted on a bubbling system and that can control a concentration of a material gas in a mixed gas at a constant value even though a partial pressure of the material gas fluctuates. The material gas concentration control system is used for a material evaporation system, and comprises a body that is connected to an outlet line and that has an internal flow channel for flowing the mixed gas, a concentration measuring part that measures the concentration of the material gas in the mixed gas, and a first valve that is arranged downstream of the concentration measuring part and that adjusts the measured concentration measured by the concentration measuring part at a previously determined set concentration, wherein the concentration measuring part and the first valve are mounted on the body.
摘要:
Provided is a plasma etching method increasing the selectivity of a silicon nitride film in relation to the silicon oxide film or silicon functioning as a base. In a plasma etching method setting a pressure in a processing container as a predetermined level by exhausting a processing gas while supplying the processing gas into the processing container, generating plasma by supplying external energy to the processing container, and setting a bias applied to a holding stage holding a substrate in the processing container as predetermined value to selectively etch the silicon nitride film with respect to a silicon and/or silicon oxide film, the processing gas includes a plasma excitation gas, a CHxFy gas, and at least one oxidizing gas selected from the group consisting of O2, CO2, CO, and a flow rate of the oxidizing gas with respect to the CHxFy gas is set to be 4/9 or greater.
摘要翻译:提供了提高氮化硅膜相对于用作基底的氧化硅膜或硅的选择性的等离子体蚀刻方法。 在等离子体蚀刻方法中,通过在将处理气体供应到处理容器中的同时排出处理气体而将处理容器中的压力设定为预定水平,通过向处理容器供给外部能量来产生等离子体,并且设定施加到保持 将处理容器中的基板保持为预定值,以相对于硅和/或氧化硅膜选择性地蚀刻氮化硅膜,处理气体包括等离子体激发气体,CH x F y气体和至少一种选择的氧化气体 来自由O 2,CO 2,CO组成的组和氧化气体相对于CH x F y气体的流量设定为4/9以上。
摘要:
According to the present invention, provided is a surfactant composition having excellent fluidity after long-term storage at a low temperature (5 degrees Celsius) and excellent foamability when diluted. It is considered that the reason why the composition of the present invention has excellent fluidity after long-term storage at a low temperature (5 degrees Celsius) and excellent foamability when diluted is because the sulfate surfactant has a predetermined amount of oxypropylene groups, thereby suppressing crystallization.