Patent classifications
C09K23/00
Foams of graphene, method of making and materials made thereof
Method for making a liquid foam from graphene. The method includes preparing an aqueous dispersion of graphene oxide and adding a water miscible compound to the aqueous dispersion to produce a mixture including a modified form of graphene oxide. A second immiscible fluid (a gas or a liquid) with or without a surfactant are added to the mixture and agitated to form a fluid/water composite wherein the modified form of graphene oxide aggregates at the interfaces between the fluid and water to form either a closed or open cell foam. The modified form of graphene oxide is the foaming agent.
Compositions comprising 2,3-dichloro-1,1,1-trifluoropropane, 2-chloro-1,1,1-trifluoropropene, 2-chloro-1,1,1,2-tetrafluoropropane or 2,3,3,3-tetrafluoropropene
Disclosed are compositions comprising HCFC-243db, HCFO-1233xf, HCFC-244db and/or HFO-1234yf and at least one additional compound. For the composition comprising 1234yf, the additional compound is selected from the group consisting of HFO-1234ze, HFO-1243zf, HCFC-243db, HCFC-244db, HFC-245cb, HFC-245fa, HCFO-1233xf, HCFO-1233zd, HCFC-253fb, HCFC-234ab, HCFC-243fa, ethylene, HFC-23, CFC-13, HFC-143a, HFC-152a, HFC-236fa, HCO-1130, HCO-1130a, HFO-1336, HCFC-133a, HCFC-254fb, CHF═CHCl, HFO-1141, HCFO-1242zf, HCFO-1223xd, HCFC-233ab, HCFC-226ba, and HFC-227ca. Compositions comprising HCFC-243db, HCFO-1233xf, and/or HCFC-244db are useful in processes to make HFO-1234yf. Compositions comprising HFO-1234yf are useful, among other uses, as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.
SHORT-CHAIN FLUOROSURFACTANTS WITH IODIDE ADDITIVES FOR FORMING SILVER NANOWIRE-BASED TRANSPARENT CONDUCTIVE FILMS
Disclosed herein are purified surfactant formulations including purified short-chain fluorosurfactant and iodide additive and a two-part coating kit having the same and a silver nanowire formulation.
Surfactant-free oil-in-water type emulsion, process for preparation thereof and its uses
There is described an oil-in-water emulsion free of surfactant agents comprising: A) At least a cross-polymer acrylate/alkyl-acrylate or derivatives thereof, or mixtures thereof in the aqueous phase of the emulsion; b) At least a polyacrylate or derivatives thereof, or mixtures thereof in the oily phase of the emulsion, and c) At least a neutralizing agent. Further, the present invention refers to a process of obtaining a surfactant-free emulsion and its use in cosmetics and pharmaceuticals compositions. The emulsion in question can be applied to all kinds of skin, being also indicated for people with sensitive skin.
Compositions comprising a fluoroolefin
The present invention relates to compositions for use in refrigeration, air-conditioning, and heat pump systems wherein the composition comprises a fluoroolefin and at least one other component. The compositions of the present invention are useful in processes for producing cooling or heat, as heat transfer fluids, foam blowing agents, aerosol propellants, and fire suppression and fire extinguishing agents.
Fatty amines, amidoamines, and their derivatives from natural oil metathesis
Fatty amine compositions made from a metathesis-derived C10-C17 monounsaturated acid, octadecene-1,18-dioic acid, or their ester derivatives are disclosed. In another aspect, fatty amidoamines made by reacting a metathesis-derived C10-C17 monounsaturated acid, octadecene-1,18-dioic acid, or their ester derivatives with an aminoalkyl-substituted tertiary amine are disclosed. The fatty amines or amidoamines are advantageously sulfonated, sulfitated, oxidized, or reduced. In other aspects, the ester derivative is a modified triglyceride made by self-metathesis of a natural oil or an unsaturated triglyceride made by cross-metathesis of a natural oil with an olefin.
COMPOSITIONS COMPRISING 2,3,3,3-TETRAFLUOROPROPENE, 1,1,2,3 TETRACHLOROPROPENE, 2-CHLORO-3,3,3-TRIFLUOROPROPENE, OR 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE
The present disclosure relates to compositions comprising 2,3,3,3-tetrafluoropropene that may be useful as heat transfer compositions, aerosol propellants, foaming agents, blowing agents, solvents, cleaning agents, carrier fluids, displacement drying agents, buffing abrasion agents, polymerization media, expansion agents for polyolefins and polyurethane, gaseous dielectrics, extinguishing agents, and fire suppression agents in liquid or gaseous form. Additionally, the present disclosure relates to compositions comprising 1,1,2,3-tetrachloropropene, 2-chloro-3,3,3-trifluoropropene, or 2-chloro-1,1,1,2-tetrafluoropropane, which may be useful in processes to produce 2,3,3,3-tetrafluoropropene.
BRANCHED GEMINAL ZWITTERIONIC LIQUIDS, METHOD FOR OBTAINING SAME AND USE THEREOF AS WETTABILITY MODIFIERS HAVING VISCOSITY REDUCING PROPERTIES
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.
DISPERSION STABILIZER FOR SUSPENSION POLYMERIZATION AND METHOD FOR PRODUCING VINYL RESIN
A dispersion stabilizer for suspension polymerization is provided that includes a vinyl alcohol-based polymer (A), wherein a 0.1 mass % concentration aqueous solution of the polymer (A) has an absorbance (a1) of less than 0.25 at a wavelength of 280 nm, the aqueous solution has an absorbance (a2) of less than 0.030 at a wavelength of 320 nm, the polymer (A) has a degree of saponification of not less than 68 mol % and not more than 98 mol %, the polymer (A) has a viscosity-average degree of polymerization of more than 1500 and less than 4500, and the polymer (A) in powder form has a YI value of not less than 5. The dispersion stabilizer is capable of producing a vinyl-based resin that is excellent in polymerization stability, has a small particle size, and has an improved bulk density.
SURFACTANT COMPOSITION
The present invention provides a surfactant composition that is excellent in storage stability while maintaining high viscosity thereof even when the concentration of a surfactant used therein is low, and a process for producing the surfactant composition. The present invention relates to [1] a surfactant composition including (A): a polyol having from 2 to 3 carbon atoms; (B): a specific polyoxyalkylene alkyl or alkenyl ether sulfate or a salt thereof; (C): at least one compound selected from the group consisting of an alkali metal salt other than the aforementioned component (B) and the like; and (D): water, in which a content of the component (A) in the composition is from 25 to 98% by mass, a content of the component (B) in the composition is from 0.05 to 10% by mass in terms of the sulfate, a total content of alkali metals (X) derived from the polyoxyalkylene alkyl or alkenyl ether sulfate salt as the component (B) and derived from the at least one compound selected from the group consisting of the alkali metal salt and the like as the component (C), in the composition is not more than 2.5% by mass in terms of the metal elements, and a molar ratio of the alkali metals (X) to the component (B) is not less than 1.5, and [2] a process for producing the aforementioned composition.