摘要:
The objective of the present invention is to provide a method for remarkably reducing a critical micelle concentration of an anionic surfactant, which is used in a large amount currently, to reduce the amount to be used. Also, the objective of the present invention is to provide a surfactant composition of which whole critical micelle concentration is remarkably reduced and in which an amount of an anionic surfactant is reduced in comparison with the case of using an anionic surfactant only as a surfactant. The method for reducing a critical micelle concentration of an anionic surfactant according to the present invention is characterized in using a cyclic lipopeptide biosurfactant in combination with the anionic surfactant.
摘要:
The present invention is related with the obtaining process and use of branched germinal zwitterionic liquids based on either bis-N,N-dialkyl-N-polyether-betaine or bis-N, N-dialkenyl-N-polyether-betaine or bis-N, N-dicycloalkyl-N-polyether-betaine or bis-N,N-diaryl-N-polyether-betaine, to be applied as modifiers of the wettability of rocks such as limestone, dolomite, sandstone, quartz or heteregenous lithologies, under the presence of brines having high content of divalent ions such as calcium, magnesium, barium or strontium, under high temperature and high pressure within enhanced oil recovery processes in order to increase the oil production.The branched germinal zwitterionic liquids of the present invention have moreover the property to act as viscosity reducers of heavy oils having high content of polar fractions, both for extraction and production, and transport and storage operations, so allowing increase the production level of this oil type. An additional advantage shown by the zwitterionic liquids, derived from their molecular structure, is that they can be handed in such a manner that can be dissolved by water, hydrocarbon or other polar and non-polar solvents.
摘要:
Provided is a composition comprising one or more compound having the structure of formula II: wherein A is a residue of a polyisocyanate, L is a linking group formed by a reaction of an isocyanate group with an isocyanate-reactive group, n is 5 to 25, m is 0 to 100, and Z is methyl or ethyl or propyl, and wherein the ratio of the sum of the moles of isocyanate groups plus the moles of said L groups to the moles of said Z groups is 2:1 to 30:1. Also provided is an emulsion in which the particles comprise such a composition and further comprise one or more water-insoluble compound that does not have the structure A-NCO.
摘要:
The present invention relates to oil-in-water emulsion-forming compositions having reduced whitening effect when applied on wet substrates. The oil-in-water emulsion compositions are suitable for use in personal care products, textile treatments, polishing products, gloss enhancements and water resistance treatments.
摘要:
A composition comprising particulate solid, an organic medium and a dispersant comprising a polyacrylic copolymer functionalized with a polyether and reacted with an aminic polybasic species.
摘要:
The disclosed invention relates to a dispersant composition comprising at least one block derived from (i) a polyester of a hydroxy substituted carboxylic acid and at least one block derived from (ii) a polyalkylene glycol terminated by a amine group or a hydroxyl group. The invention also provides lubricating compositions containing the described dispersant as well as methods of making and using the described dispersant, including method of making the dispersant, methods of lubricating an engine with a lubricant containing the described dispersant, and methods of reducing sludge formation in an engine.
摘要:
The invention provides an emulsion comprising: (a) a continuous phase; (b) a dispersed phase comprising an active compound (1); and (c) colloidal particles located at the interface between the continuous phase and the dispersed phase. These are particularly useful with one or more agrochemicals or food additives as an active compound.
摘要:
Disclosed is a dispersing agent to be used for dispersing metal particles, comprising a structural unit originating from a compound represented by a general formula of wherein R1 is a hydrogen atom or a methyl group, R2 is a hydrogen atom, an alkyl group with a carbon number equal to or greater than 1 and equal to or less than 9, a phenyl group, a bicyclopentenyl group, or a nonylphenyl group, x is 2 or 3, and n is equal to or greater than 1, and a structural unit that has an ionic group, wherein a number average molecular weight of the compound represented by general formula (I) is equal to or less than 10000.
摘要:
A pumpable shelf-stable suspension of fibers in an organic phase comprising 1.0-60 wt % of fibers and 0.01-10 wt % of a disubstituted urea is proposed as well as a method using the disubstituted urea to suspend fibers in an organic phase.
摘要:
The present invention relates to emulsion-templated silica micro and nano-capsules- and methods for making them. In particular, the template emulsion is stabilized by a biosurfactant that also assists in nucleating the silica shell Mineralizing biosurfactants and stabilized micro- and nano-emulsions useful in forming the emulsion-templated micro- and nano-capsules, and methods for the use of the silica micro- and nano-capsules are also described.