摘要:
A process is provided for the production of linear saturated alkanes from one or more primary alcohols, wherein the carbon chain of the one or more primary alcohols has one carbon atom more than the alkane, including conducting reductive dehydroxymethylation of one or more primary fatty alcohols containing 8 to 24 carbon atoms, at a temperature ranging from 100 to 300° C. and pressures from 1 to 250 bar in the presence of hydrogen and a catalyst, and removing water formed during the reaction.
摘要:
A process for making an alkyl and/or alkenyl oligoglycoside preparation having a magnesium salt concentration of less than about 10 ppm involving the steps of: (a) providing an alkyl and/or alkenyl oligoglycoside preparation having an active substance content of from about 10 to 70% by weight, based on the weight of the preparation; (b) providing an acid component; (c) adjusting the pH of the alkyl and/or alkenyl oligoglycoside preparation to from about 4 to 9.5 by combining the acid component with the alkyl and/or alkenyl oligoglycoside preparation to form a pH-modified alkyl and/or alkenyl oligoglycoside preparation; (d) providing a column charged with an ion exchange resin; and (e) purifying the pH-modified alkyl and/or alkenyl oligoglycoside preparation by passing it through the column of step (d) at a viscosity of from about 20 to 6,000 mPas, and at a temperature of from about 20 to 90° C. to form the alkyl and/or alkenyl oligoglycoside preparation having a magnesium salt concentration of less than about 10 ppm.
摘要:
Hydroxy mixed ethers of the general formula (I): R1O[CH2CH2O]xCH2CH(OH)R2 (I) wherein R1 represents a linear or branched, alkyl or alkenyl group having from 4 to 22 carbon atoms; R2 represents a linear or branched, alkyl or alkenyl group having from 2 to 22 carbon atoms; and x represents a number of from 40 to 80, are described along with compositions containing such hydroxy mixed ethers in conjunction with other surfactants. Also described are various anti-foaming uses for such ethers and compositions containing the same.
摘要翻译:通式(I)的羟基混合醚:<?in-line-formula description =“In-line formula”end =“lead”?> R 1 O [CH 2] (O)2 CH 2 OH(OH)R 2(I) -line-formula description =“In-line Formulas”end =“tail”?>其中R 1表示具有4至22个碳原子的直链或支链烷基或链烯基; R 2表示具有2至22个碳原子的直链或支链烷基或链烯基; 和x表示40至80的数量,以及含有这种羟基混合醚与其它表面活性剂结合的组合物。 还描述了用于这种醚和包含其的组合物的各种消泡用途。
摘要:
Quaternary surfactants of the formula (I), wherein R1CO is a linear or branched, saturated or unsaturated, optionally hydroxy-functionalized acyl radical having 6 to 22 carbon atoms and 0, 1, 2 or 3 double bonds, R2 is a CH2COOH radical, an alkyl radical having 1 to 4 carbon atoms, a CH2CH2OH or a CH2CH2OCH2CH2OH group, and X is halide, alkyl sulfate, alkyl carbonate or alkyl phosphate, are useful as surfactants in cosmetic and pharmaceutical preparations. Aqueous solutions above 50% by weight of the surfactants are flowable and pumpable.
摘要:
A process for making solid sugar surfactants involving: (a) providing a glycose component; (b) acetalizing the glycose component with a fatty alcohol to form a technical mixture containing excess fatty alcohol and alkyl and/or alkenyl oligoglycoside; and (c) contacting the technical mixture with an extractant to form a solid phase containing the extractant, a predominant part of alkyl and/or alkenyl oligoglycoside and a small amount of fatty alcohol, and a liquid phase containing a predominant part of the fatty alcohol.
摘要:
Surfactant granules are made by the process comprising the steps of (1) mixing an aqueous nonionic surfactant paste and an aqueous solution of an organic polymeric carrier; (2) simultaneously granulating and drying the mixture from step (1) in a fluidized bed to form a granulated nonionic surfactant. The surfactant granules are dust-free, flowable, storage-stable, show no tendency toward clumping and are readily soluble in cold water.
摘要:
Defoamer granules containing support materials and silicones for solid laundry detergent, dishwashing detergent and cleaning compositions, obtainable by applying silicones in the form of aqueous emulsions to an added intermediate product of support materials and simultaneously drying and granulating the products in a fluidized bed, with the proviso that at least 85% by weight of the particles have a mean diameter below 1.5 mm, are described.
摘要:
A process is provided for the production of linear saturated alkanes from one or more primary alcohols, wherein the carbon chain of the one or more primary alcohols has one carbon atom more than the alkane, including conducting reductive dehydroxymethylation of one or more primary fatty alcohols containing 8 to 24 carbon atoms, at a temperature ranging from 100 to 300° C. and pressures from 1 to 250 bar in the presence of hydrogen and a catalyst, and removing water formed during the reaction.
摘要:
The disclosed invention relates to a cosmetic composition containing at least one branched oligo-α-olefin, characterized in that the side chains at one branch point at least are ethyl, propyl or longer branched alkyl chains, the branched oligo-α-olefin being obtainable by oligomerization of a) at least one branched α-olefin containing 5 to 18 carbon atoms, b) at least one linear α-olefin containing 4 to 10 carbon atoms, c) a mixture of a branched α-olefin containing 4 to 18 carbon atoms and a linear α-olefin containing 3 to 18 carbon atoms or d) a mixture of various branched α-olefins containing 4 to 18 carbon atoms and linear α-olefins containing 3 to 18 carbon atoms in the presence of a catalyst selected from the group consisting of organic acids, cationic ion exchangers, silica gels, layer silicates, inorganic acids or Lewis-acid-based catalysts. The specific oligo-α-olefins are distinguished by particularly high spreading power, by an improved sensory impression of the final cosmetic formulation and by particularly good stability in antiperspirant/deodorant formulations.
摘要:
Quaternary surfactants of the formula (I), wherein R1CO is a linear or branched, saturated or unsaturated, optionally hydroxy-functionalized acyl radical having 6 to 22 carbon atoms and 0, 1, 2 or 3 double bonds, R2 is a CH2COOH radical, an alkyl radical having 1 to 4 carbon atoms, a CH2CH2OH or a CH2CH2OCH2CH2OH group, and X is halide, alkyl sulfate, alkyl carbonate or alkyl phosphate, are useful as surfactants in cosmetic and pharmaceutical preparations. Aqueous solutions above 50% by weight of the surfactants are flowable and pumpable.