摘要:
A compound having the general formula I wherein R comprises a hydrocarbon group including H, branched or linear alkyl chains, substituted alkyl, alkenyl, aryl, alkaryl or cylcic groups; R1 is any of C, N, P, B, S, or SiO4 or any subgroups thereof; R2 is any of a covalent bond, O, CH2, (CH2)n where n may be 1-10 carbons long; R3 is any of a covalent bond, O, CH2, (CH2)n where n may be 1-10 carbons long; R2 and R3 may be the same or different; R4 is any of O, H, OH, CH3, (CH2)nCH3, (CH2)nOH, (CH2)nOX or any combinations thereof where n is from 1 to 10. OX is a water soluble group; chains a and b are in the range 1-10 carbons each; and the alkoxy chains c and d are in the range 1-20 units each.
摘要:
The invention relates to the use of at least one galactomannan with a ratio of the constituents mannose/galactose (M/G) which is at most equal to approximately 5, with a mole weight of between 2,000 and 2,10 g/mole, as an emulsifying agent of a dispersion. The invention also relates to the use of agents of this type in compositions for use in the areas of cosmetics, food, agrochemistry, industrial formulations, detergency, pharmaceuticals, construction materials, bore fluids and radical polymerisation.
摘要:
The invention concerns a surfactant formed by at least a particle with nanometric dimensions based on a metal oxide, hydroxide and/or oxy hydroxide, at the surface of which are bound hydrophobic organic chains, the bonds between said chains and said particle surface being non-homogeneously distributed on said surface, such that the resulting modified surface particle has an actual amphiphilic character. The invention also concerns emulsifying compositions comprising surface-modified particles with nanometric dimensions which can be said type of surfactants, and methods for preparing said emulsifying compositions.
摘要:
The present invention relates to synthetic fatty phosphoric acid esters which when neutralized with a neutralizing agent fonctions as a surface active agent. Neutralizing agents include sodium and potassium carbonates, bicarbonates, phosphates and sodium borates. Said surface active agents may be used to prepare stable oil-in-water emulsions, water-in-oil emulsions, and various solutions of varying polarity and viscosity; particularly for use in various dermatological applications.
摘要:
A process for producing inorganic thin films which comprises dissolving or dispersing inorganic substances in an aqueous medium by the use of a micelle forming agent or a surfactant comprising a ferrocene derivative, and then electrolyzing the resulting micelle solution or dispersion to form a thin film of said inorganic substance on the electrode is disclosed. According to the process, inorganic thin film can be formed with a simple operation.
摘要:
The invention relates to a fluorescent emulsion, to a diagnostic reagent containing the same, and to the use thereof in the preparation of a diagnostic reagent for in vivo fluorescence imaging.
摘要:
Emulsions containing a hydrocarbon liquid in a continuous phase and alcohol and/or water in a dispersed phase. The emulsions are stabilised by an emulsifier and a coupling agent. The emulsifier is a copolymer containing at least one relatively hydrophobic polymeric block of styrene or ring substituted styrene monomer, and at least one relatively hydrophilic polymeric block of at least one monomer, such as ethylene oxide, selected from the group having the formula H(O-R)nOH where R is an aliphatic radical containing from 1 to 4 carbon atoms and n is a number between 20 and 300. The coupling agent is a copolymer containing at least one polymeric block of styrene or ring substituted styrene monomer, and at least one block being of a saturated or unsaturated aliphatic hydrocarbon moiety, such as butadiene. The emulsifier is present in an amount sufficient to form micelles of the relatively hydrophilic polymer block sufficient to contain the dispersed phase and the coupling agent is present in an amount that is sufficient to substantially prevent the dispersed phase droplets from coalescing while not being present in a sufficiently high amount that micelles of the styrene containing polymeric blocks of the coupling agent form in the continuous phase of the emulsion.