摘要:
Aqueous dispersion containing a silicon-aluminum mixed oxide powder, the powder containing 0.1 to 99.9 wt. % Al2O3 and Si—O—Al-bonds. The dispersion can be produced using dispersing and/or grinding devices which a achieve an energy input of at least 200 KJ/m3. The dispersion can be used for the chemical-mechanical polishing of semiconductor substrates.
摘要翻译:含有硅铝混合氧化物粉末的水分散体,该粉末含有0.1〜99.9重量% %的Al 2 O 3和Si-O-Al键。 分散体可以使用达到至少200KJ / m 3的能量输入的分散和/或研磨装置来生产。 该分散体可用于半导体衬底的化学机械抛光。
摘要:
The ink mixture contains at least one organosilane and optionally at least one hydrophobic silicic acid. The ink mixture can be used as a printing ink, especially as an ink for ink-jet printing.
摘要:
Dispersion comprising particles of a surface-modified, hydrophilic silica, whereA) the particles of the surface-modified, hydrophilic silica comprise an aluminium atom and a hydrocarbon radical, a) the aluminium atom is bonded via an oxygen atom to a silicon atom of the particle surface, b) the hydrocarbon radical comprises a silicon atom which is bonded to a carbon atom of the hydrocarbon radical, c) possess an average particle diameter d50 in the dispersion of 40-200 nm, preferably 60-150 nm, and B) the pH of the dispersion is 8 or more.
摘要:
Aqueous dispersion comprising hydrophobized silicon dioxide particles, comprising a. 50%-80% by weight of water, b. 10%-30% by weight of hydrophobized silicon dioxide particles, c. 5%-15% by weight of at least one alcohol alkoxylate of the general formula R1O((CH2)mO)nH, where R1 is a branched or unbranched alkyl or alkenyl radical having 10-25 C atoms, m is 2 or 3 and n is 10-50, d. 0.5%-5% by weight of at least one amine and/or amino alcohol having a molecular weight of less than 500 and e. 0%-1% by weight of N-methylpyrrolidone, all figures for weight percentages being based on the dispersion. Paint formulation comprising the dispersion.
摘要:
Aqueous dispersion containing transition aluminium oxide as only solid and a dispersant, in which—the transition aluminium oxide is present in the form of aggregates of primary particles, the content of transition aluminium oxide in the dispersion is from 40 to 65% by weight, the aggregates in the dispersion have a mean aggregate diameter of less than 100 nm,—the dispersant contains polyaluminium hydroxychloride, polyaluminium hydroxynitrate and/or polyaluminium hydroxysulphate, the dispersion has a pH of from 3 to 5.
摘要:
Dispersion containing pyrogenic silicon-titanium mixed oxide powders with a silicon dioxide content of 75 to 99.99 wt.-% and a titanium dioxide content of 0.01 to 25 wt. %, water and a basic, quaternary ammonium compound, wherein the mean aggregate diameter of the particles of the silicon-titanium mixed oxide powder in the dispersion is 200 nm at most. Process for the production of a titanium-containing zeolite with the use of the dispersion.
摘要:
A method of fractionating a dispersion of oxidic nanoparticles wherein at least one step of the method is a membrane crossflow filtration step, the flow of the dispersion over the membrane being brought about by means of driven rotating parts; and dispersions of oxidic nanoparticles that are obtainable by the method.
摘要:
Sulfur-functional polyorganosiloxanes corresponding to the general formula I with substituents as described in the specification, corresponding to the general formula I They can be used in rubber mixtures.
摘要翻译:对应于通式I的对应于通式I的对应于通式I I y所示的取代基的硫官能聚有机硅氧烷可用于橡胶混合物中。
摘要:
Sulfur-functional polyorganosiloxanes corresponding to the general formula I with substituents as described in the specification, corresponding to the general formula I They can be used in rubber mixtures.
摘要翻译:对应于通式I的对应于通式I的对应于通式I I y所示的取代基的硫官能聚有机硅氧烷可用于橡胶混合物中。
摘要:
A process for reducing dissolution time in the production of sodium percarbonate particles containing an alkali metal silicate as stabilizer by fluidized bed spray granulation and/or by coating sodium percarbonate particles with a coating containing an alkali metal silicate, wherein a solution containing alkali metal silicate is sprayed during production and/or coating which contains alkali metal silicate having a modulus in the range from less than 3 to greater than 1. Sodium percarbonate produced by fluidized bed spray granulation is distinguished by elevated Oa stability and short dissolution times and may thus readily be used in detergents and cleaning products containing silicate builders.