摘要:
The invention is directed to cationic surfactants of formula (I), where R1 is a saturated or unsaturated, branched or linear alkyl group having 6 to 22 carbon atoms, R2 and R3 independently are C1-C3 alkyl groups or hydrogen, n is 2 or 3, and X− is an anion selected from the group consisting of halides, deprotonated carboxylic acids and methosulfate. The cationic surfactants are useful, particularly as hair conditioners, for the preparation of cosmetic compositions.
摘要:
The invention is directed to the use of maleic esters selected from compounds of formulae (I), (II) and (III), as copolymerizable emulsifiers in the emulsion polymerization of olefinically unsaturated monomers, in which A is a C3-C40 alkyl group; X, Y and Z independently are hydrogen or methyl; B and D independently are sulfate, phosphate or hydrogen; n and p independently are numbers in the range from 0 to 40; and m is a number in the range from 2 to 40.
摘要:
A reaction medium for enzyme-catalyzed reactions is provided, comprising an oil-in-water emulsion including water, an emulsifier, an oil phase and at least one interfacially active enzyme, where the emulsion is produced by the phase inversion temperature process and has a droplet size of 50 to 400 nm. A method for the enzyme-catalyzed esterification, transesterification or hydrolysis of fatty acid alkyl esters and/or triglycerides is also provided where the oil-in-water emulsion is used as the reaction medium.
摘要:
A process for treating hair involving contacting the hair with a composition containing: (a) a cationic surfactant component comprising: (i) a quaternized fatty acid amidoamine; and (ii) optionally, a non-quaternized fatty acid amidoamine; and (b) optionally, a conditioning agent selected from the group consisting of a fatty alcohol, a fatty alcohol polyglycol ether, and mixtures thereof.
摘要:
The invention relates to a glycerol ether mixture which consists essentially of a) at least one C12-22 glycerol monoalkyl ether, b) at least one C12-22 glycerol dialkylether and optionally c) at least one C12-22 glycerol trialkyl ether and/or d) at least one C12-22 fatty alcohol, components a) and b) together making up at least 50% by weight of the glycerol ether mixture and the ratio by weight of component a) to component b) being in the range from 3:1 to 1:2. The invention also relates to a process for producing the glycerol ether mixture and to cosmetic compositions containing the glycerol ether mixture.
摘要:
The invention provides water-in-oil emulsions containing (a) 12-21% by weight of polyglyceryl-2 dipolyhydroxystearate, (b) 4-7% by weight of a hydrogenated ethoxylated castor oil, (c) 25-35% by weight of mineral oil, (d) 20-30% by weight of further oil substances (e), 3-5% by weight of hydrotropes, (f) 3-4% by weight of metal soaps and (g) 10-30% by weight of water, based on the overall composition. The emulsions are useful for finishing textiles and papers.
摘要:
A composition comprising alkyl esters, with a C1-C8 alkyl group, and partial glycerides, with a free glycerol content of, at most, 2%, by weight, based on the weight of the composition, derived in an enzymatically-catalyzed reaction from saturated or unsaturated, straight or branched C8-C22 fatty acids of vegetable oils, and useful, inter alia, in biofuels, such as biodiesel, and as an additive for improving the lubricating performance of fuel compositions.
摘要:
Disclosed is a process for the manufacture of saturated fatty acid esters by subjecting unsaturated fatty acid esters to hydrogenation in the presence of a catalyst suitable for catalysing the saturation of double bonds in the esters, which is characterised in that said catalyst represents a homogenous complex of a Group VIII metal and a sulfonated phosphite as the polar ionic ligand.
摘要:
The present invention relates to cosmetic compositions comprising sclareolide and hesperidin methyl chalcone (HMC), which can be used especially for the tanning of skin and/or the darkening of hair and/or preventing of greying of hair. The present invention also relates to the use of agents for these purposes.