722 results about "Fatty acid ester" patented technology

A boron-containing polyethylene glycol fatty acid ester surfactant belongs to the field of organic chemistry and functional materials. The boron-containing polyethylene glycol fatty acid ester surfactant is prepared as follows: polyethylene glycol (PEG), boric acid and fatty acid are used as raw materials, first esterification reaction of the PEG and the boric acid is performed, then esterification reaction of the PEG and the fatty acid is performed to obtain boron-containing poly ethylene glycol fatty acid ester; by changing the species of fatty acids and catalysts and molecular weight of the PEG, the esterification rate can be enhanced, the boron-containing poly ethylene glycol fatty acid ester product can be used as a surfactant, and the boron-containing poly ethylene glycol fatty acid ester can reduce water surface tension and has good emulsifying properties.

The invention discloses a cationic core-shell PHA nano-emulsion reinforcing agent as well as preparation and application thereof, and belongs to the technical field of papermaking chemicals. The problems that a traditional wet strength agent is poor in environmental protection property and difficult to recycle, and a conventional bio-based material needs high-temperature curing and is high in energy consumption are solved. According to the reinforcing agent, low-MFFT bio-based polyhydroxyalkanoate is used as a core, and a positive ion shell layer with strong positive charges is wrapped outside the core. The method has the core advantages that extra high-temperature curing is not needed, the film can be efficiently formed under the conventional 105 DEG C drying condition, and the energy consumption is remarkably reduced; meanwhile, high dry and wet strength and water resistance are achieved, the treated paper has excellent re-pulping recycling suitability, and the industrial pain point that traditional wet strength paper is difficult to recycle is solved.

The present invention relates to compositions and methods for forming substantially bio-based barrier coatings suitable for application on paper and paperboard substrates, as well as paper and paperboard substrates to which one or more such substantially bio-based barrier coatings are applied. The bio-based barrier coatings of the present invention comprise a bio-wax emulsion comprising one or more bio-waxes, such as castor oil wax, formed by hydrogenation of a bio-based oil, such as castor oil. The barrier coating composition is formed by dispersing a bio-wax emulsion into a polyhydroxyalkanoate (PHA) dispersion and can be applied as a coating at ambient temperature, for example, to paper or paperboard, such as paper or paperboard consisting of regenerated fibers, using conventional industrial processes.

The invention discloses a preparation method of high-viscosity cationic starch, which belongs to the technical field of modified starch, and comprises the following steps: crosslinking epichlorohydrin, ball-milling and cationizing; the epoxy chloropropane crosslinking comprises the following steps: mixing starch, calcium hydroxide and deionized water, stirring at 40-50 DEG C, adding sodium stearoyl lactylate, stirring at 50-55 DEG C, naturally cooling to room temperature, adding sodium chloride and epoxy chloropropane, stirring, dropwise adding a potassium hydroxide aqueous solution, stirring, adjusting the pH value to 6, filtering, taking filter residues, washing and drying to obtain crosslinked starch; in the step of ball milling, calcium hydroxide, sucrose fatty acid ester SE-11 and deionized water are mixed and then subjected to ball milling, and a ball-milled material is obtained; the prepared high-viscosity cationic starch is high in paste liquid viscosity and cationic substitution degree, good in paste liquid viscosity stability, uniform in substitution degree and paste liquid viscosity, high in reaction efficiency in cationization and low in alkali consumption.

The invention discloses a preserving fluid for stably preserving sample DNA at normal temperature and a preparation method thereof, and belongs to the technical field of biological sample preservation. The preserving fluid comprises a lysis system, a nucleic acid protection system and a buffering and stabilizing system, the cracking system comprises a composite surfactant and an enzymolysis auxiliary agent; the composite surface active agent is prepared from polyether polyol fatty acid ester and cocamidopropyl hydroxy sulfobetaine; the enzymolysis auxiliary agent comprises lysozyme Lyso-V and protease K; the nucleic acid protection system comprises a nitrogen heterocyclic polyamine-carboxylic acid derivative and dextran sulfate; the nitrogen heterocyclic polyamine-carboxylic acid derivative comprises 1, 4, 7, 10-tetraazacyclododecane-N, N ', N' ', N ''tetraacetic acid, 1, 4, 7-triazacyclononane-N, N', N''-triacetic acid, disodium ethylene diamine tetraacetate-nitrogen heterocyclic derivative, and diethylenetriamine pentaacetic acid-piperazine derivative, and the nitrogen heterocyclic polyamine-carboxylic acid derivative comprises 1, 4, 7, 10-tetraazacyclododecane-N, N ', N '', N'' tetraacetic acid, 1, 4, 7-triazacyclononane-N, N', N ''-triacetic acid. The buffering and stabilizing system comprises an amphoteric buffering agent and a polymer stabilizer; the amphoteric buffering agent comprises 2-(N-morpholino) ethanesulfonic acid and N-tri (hydroxymethyl) methylglycine.

The invention provides a polyhydroxyalkanoate composition as well as a preparation method and application thereof. The polyhydroxyalkanoate composition comprises at least two kinds of copolymers of 3-hydroxybutyrate and 4-hydroxybutyrate. The at least two copolymers of 3-hydroxybutyrate and 4-hydroxybutyrate at least comprise one segmented copolymer of 3-hydroxybutyrate and 4-hydroxybutyrate, and in the segmented copolymer, the mass percentage content of a 4-hydroxybutyrate structural unit is 0-20%; the at least two copolymers of the 3-hydroxybutyrate and the 4-hydroxybutyrate at least comprise a random copolymer of the 3-hydroxybutyrate and the 4-hydroxybutyrate. The polyhydroxyalkanoate composition has good strength and toughness, the post-brittleness is also obviously improved, and meanwhile, the polyhydroxyalkanoate composition also has good processability and migration resistance.

To provide a defoaming agent capable of exhibiting excellent defoaming properties (foam breaking and foam suppressing effects) and excellent surface finishing properties (cissing and foam breaking marks).SOLUTION: And at least one hydrophobic substance (C) selected from the group consisting of hydrophobic silica, fatty acid metal salts, fatty acid amides, and waxes, wherein the content of the liquid glycerin fatty acid ester (A) is 4 to 49% by weight, the content of the liquid alkylene oxide adduct (B) is 51 to 96% by weight, and the content of the hydrophobic substance (C) is 0.1 to 15% by weight, based on the weight of the liquid glycerin fatty acid ester (A) and the liquid alkylene oxide adduct (B).SELECTED DRAWING: None

The present application belongs to the technical field of polyester oil agent, and particularly relates to a smoothing agent for polyester FDY spinning oil agent. The smoothing agent for polyester FDY spinning oil agent comprises the following components in parts by weight: 20-30 parts of fatty acid ester; 15-20 parts of polyether modified oleic acid; and 10-15 parts of modified amino silicone oil. The smoothing agent provided by the present application comprises the components of fatty acid ester, polyether modified oleic acid and modified amino silicone oil, the polyether modified oleic acid and the modified amino silicone oil help to improve the comprehensive performance of the smoothing agent, endow the smoothing agent with excellent smoothness, wettability and high-temperature resistance, and are used in the polyester FDY oil agent, have high oil film strength, can also improve the antistatic performance and the flame retardant performance of the oil agent, and are suitable for being specially used in flame-retardant polyester fully drawn yarn oil agent.

The invention relates to the technical field of waste gas treatment, and particularly discloses waste gas treatment liquid for treating large-air-volume low-concentration waste gas through a water-based method. The waste gas treatment liquid for treating the large-air-volume low-concentration waste gas through the water-based method comprises a surfactant, a defoaming agent, a dissolution accelerant and water. Wherein the surfactant can be selected from any one or more of polyoxyethylene alkyl ether, polyoxyethylene alkyl ether and polyoxyethylene fatty acid ester; the dissolution accelerant can be selected from any one or more of ethylene glycol monobutyl ether, diethylene glycol monobutyl ether and triethylene glycol monobutyl ether; the defoaming agent is any one or more of butanol, dimethyl silicone oil, silicone and polyether modified polysiloxane. When the waste gas absorption liquid obtained in the invention is used for treating waste gas, the absorption efficiency of methanol, butanol, benzene, toluene, xylene, ethyl acetate, dichloromethane and acetone is obviously improved, and the absorption efficiency of the waste gas absorption liquid on aromatic hydrocarbon, halogenated hydrocarbon, alcohol, ketone and ester pollutants is improved.

The invention belongs to the technical field of automobile paint surface protective films, and particularly relates to an environment-friendly heat-insulating automobile paint surface protective film and a preparation method thereof. The environment-friendly heat-insulating automobile paint surface protective film comprises a protective film, a self-cleaning coating, a first TPU base material, a heat-insulating coating, a second TPU base material, a pressure-sensitive adhesive layer and a release film from top to bottom, the heat-insulating coating comprises the following raw materials in parts by mass: 100 parts of waterborne polyurethane resin emulsion, 15-25 parts of a fatty acid ester modified heat-insulating compound, 1-2 parts of an ultraviolet light absorber and 5-8 parts of an auxiliary agent; the heat insulation compound comprises glass fiber powder, hollow glass beads and nano rare earth oxide; the environment-friendly heat-insulating automobile paint surface protective film provided by the invention has the advantages of high light transmittance, good heat-insulating property, good ultraviolet resistance, good ductility and environment friendliness.

The invention relates to the technical field of dairy products, in particular to liquid milk for children and a sterilization and preparation method thereof. When the liquid milk for children is prepared, the pressure of the dynamic ultrahigh-pressure microjet is 150-200MPa, the holding time is 12-15s, an emulsifier used in the liquid milk for children comprises mono-and diglycerol fatty acid ester, polyglycerol fatty acid ester and propylene glycol fatty acid ester, and the emulsifier accounts for 0.06-0.12% of the liquid milk for children by mass. The liquid milk obtained by adopting the compound emulsifier and the microjet treatment condition provided by the invention is uniform in color and luster; the tissue state is a uniform fluid, and the phenomena of precipitation, clots, impurities, viscosity and thickness are avoided; the beverage has the fragrance of cow milk, is delicious and sweet in taste, and does not have any other abnormal taste.

The invention provides a diesel oil anti-wear agent and a preparation process thereof, and belongs to the technical field of diesel oil additives, and the preparation process comprises the following steps: mixing and stirring diisooctyl maleate and xylene, adding diethylenetriamine and deionized water, carrying out heating reaction, adding toluene, 4-(aminomethyl) pyridine and ethylene oxide, carrying out mixing reaction, filtering, washing, and drying to obtain the diesel oil anti-wear agent. The pyridinium-based polyester hollow capsule is prepared; the preparation method comprises the following steps: mixing xylene, catechol, ethylene phosphonic acid, ammonium persulfate and deionized water, heating, dispersing in cyclohexane, adding polyvinyl alcohol, octadecyl methacrylate and azodiisobutyronitrile, mixing and reacting to obtain catechol phosphonate nano colloidal particles; mixing and stirring the fatty acid ester solution, the oleoyl fluorocarbon copolymer and the pyridinium-based polyester hollow capsule, adding the catechol phosphonate nano colloidal particles, continuously stirring, performing ultrasonic treatment, and degassing to obtain the diesel oil anti-wear agent. The diesel oil antiwear agent can improve the antiwear property and demulsibility of the diesel oil antiwear agent.

The invention belongs to the technical field of seasoning processing, and particularly discloses salad dressing capable of improving the stability of natural pigments and a preparation method of the salad dressing. The salad dressing capable of improving the stability of the natural pigment comprises the following raw materials: high fructose corn syrup, yolk liquid, white granulated sugar, potassium sorbate, lemon concentrated juice, table vinegar, water, glycerol, the natural pigment, titanium dioxide, sucrose fatty acid ester, edible salt, xanthan gum, soybean oil, acetylated distarch adipate, sodium ascorbate, mustard powder and a rosemary extract. The HLB (Hydrophile Lipophile Balance) value of the sucrose fatty acid ester is The synergistic effect of all the components is remarkable, multiple defense lines of oxidation resistance, system stability, corrosion prevention and the like are constructed, and the probability of natural pigment fading in the salad dressing storage process is reduced.

An oil-in-water cosmetic composition comprising: compound of thipyridinone type; one or more Polyglyceryl Fatty Acid Ester; an oil phase; and wherein the oil-in-water cosmetic composition is a macroemulsion and wherein the compound of thipyridinone type penetrates rapidly and in a high amount.

The invention relates to the technical field of hole sealing reagents, in particular to a medium-temperature nickel-free hole sealing agent and a preparation method and application thereof. The invention provides a nickel-free hole sealing treatment fluid, which comprises the following components by mass concentration: 0.1-30 g / L of a main hole sealing agent; 0.01 to 30 g / L of polyol fatty acid ester; 0.1 g / L to 10 g / L of an accelerant; a pH buffer agent is 0.05 to 5 g / L; wherein the main hole sealing agent comprises alkali metal salt and / or alkaline earth metal salt and lays a hole sealing core foundation; the polyol fatty acid ester is used as a coalescing agent and can form an organic film on the outer surface of a film layer to further obstruct a medium and improve the smoothness; the accelerant can further improve the corrosion resistance and the color fixing property; and the pH buffering agent ensures that the functions of all the components are fully exerted. All the components of the treating fluid cooperate with one another, so that the hole sealing quality, the salt mist tolerance and the color fixing performance of the treating fluid can be comparable with those of a commercially available nickel-containing hole sealing agent, and the treating fluid shows excellent comprehensive performance.

The invention belongs to the technical field of polyester oil, and particularly relates to a smoothing agent for polyester FDY spinning oil. The smoothing agent for the polyester FDY spinning oil comprises the following components in parts by weight: 20-30 parts of fatty acid ester; 15-20 parts of polyether modified oleic acid; 10-15 parts of modified amino silicon oil; the smoothing agent provided by the invention comprises the fatty acid ester, the polyether modified oleic acid and the modified amino silicon oil, the polyether modified oleic acid and the modified amino silicon oil are beneficial to improving the comprehensive performance of the smoothing agent, the smoothing agent is endowed with excellent smoothness, wettability and high temperature resistance, and when the smoothing agent is used in a polyester FDY oiling agent, the oil film strength is high, and the lubricating property is good. The antistatic property and the flame retardant property of the oiling agent can be improved, and the oiling agent is suitable for being specially used for the flame-retardant polyester fully-drawn yarn oiling agent.

An environmentally friendly, wear-resistant and noise-reducing engineering plastic composition, a preparation method therefor and a use thereof. The composition comprises the following components: a thermoplastic resin, a reinforcing filler, a wear-resistant and noise-reducing auxiliary agent, a wear-resistant auxiliary agent, and other auxiliary agents. The wear-resistant and noise-reducing auxiliary agent comprises at least one of a polyolefin-styrene graft copolymer or a polyolefin-styrene graft copolymer modified with a reactive functional group. The wear-resistant auxiliary agent is selected from among one of UHMWPE, polysiloxane, molybdenum disulfide, graphite, and a modified fatty acid ester. The reinforcing filler comprises at least one of fiberglass, carbon fibers, and an inorganic mineral. The wear-resistant and noise-reducing auxiliary agent and the wear-resistant auxiliary agent are used in combination, so that the wear resistance and noise reduction performance of the modified engineering plastic can be significantly improved, the composition is environmentally friendly, and the mechanical properties of the modified material can be maintained.

Provided is a novel oil-in-water emulsion cosmetic containing a hygroscopic aqueous compound, which is excellent in use properties and in which the tackiness and the like accompanying the hygroscopic aqueous compound are improved. The oil-in-water emulsion cosmetic of the present disclosure contains (a) a hygroscopic aqueous compound, (b) a polyglycerin fatty acid ester, (c) an oil component, and (d) water.

This invention provides a multi-layer cosmetic that can provide a cooling sensation and shine to the skin after application, has excellent cooling retention, and allows for easy mixing of the oil layer and water layer during use. [Solution] The following components (A), (B), (C), and (D): (A) Fatty acid ester having a pentaerythritol group (B) Volatile oils (C) Nonionic surfactants with an HLB value of 1 to 9 (D)Water A multi-layer cosmetic containing [specific ingredient].

A fatty acid ester of cannabinoid, wherein the fatty acid is an unsaturated acid, with an ester linkage consisting of an aryloxy oxygen directly bonded to an aromatic ring of the cannabinoid and a carbonyl group attached to the fatty acid unsaturated carbon chain.

A liquid composition containing, as a sucrose fatty acid ester in liquid form, a sucrose fatty acid ester in which the constituent fatty acid has 16 or more carbon atoms, the liquid composition comprising terpenes and a monohydric alcohol and / or a dihydric alcohol, wherein the content of the terpenes is 0.08-1.2 parts by weight relative to 1 part by weight of the sucrose fatty acid ester, the content of the monohydric alcohol and / or the dihydric alcohol is 0.50-5.0 parts by weight relative to 1 part by weight of the sucrose fatty acid ester, and the content of the sucrose fatty acid ester is 15-80% by weight of the total amount of the liquid composition.

The present invention relates to a cosmetic composition in the form of a water-in-oil emulsion, comprising, in a physiologically acceptable medium, (i) at least two distinct linear alkanes, each containing from 9 to 14 carbon atoms and differing from each other by at least two carbon atoms, (ii) an emulsifying system comprising at least two distinct polyglycerols and fatty acid esters, which may optionally be (poly)hydroxylated, and (iii) pigments and fillers, wherein the total content of C9 to C14 linear alkanes is at least 12% by weight, preferably at least 15% by weight, relative to the total weight of the composition.

The invention discloses a preparation method and a preparation system of high-dispersion silicon dioxide for tires in winter, and the preparation method comprises the following steps: S1, putting solid sodium silicate into a static pressure kettle, adding steam to pressurize to 0.8-1.0 MPa, and maintaining the pressure for 2 hours to obtain concentrated water glass; s2, adding water into the concentrated water glass to prepare a sodium silicate solution with the silicon dioxide content of 20-25wt%, standing in a storage tank for more than 10 days, and filtering; and S3, adding sucrose fatty acid ester and concentrated sulfuric acid with the mass concentration of 98% into the sodium silicate solution, and reacting for later use. The special silicon dioxide for the winter tire is high in dispersity, uniform in particle and good in surface structure and can endow the winter tire with more excellent comprehensive performance, and sucrose fatty acid ester is added as a reaction regulator, so that the product has more excellent structural performance.

The invention provides a water-based ultra-matte colorful continuous-phase emulsion and a preparation method and application thereof.The water-based ultra-matte colorful continuous-phase emulsion is prepared from acrylic resin emulsion, auxiliaries, matte auxiliaries, a modified compatilizer and water, the modified compatilizer is prepared by reacting hydroxylated bentonite with KH560, then adding the modified compatilizer into the acrylic resin emulsion, and stirring to obtain the water-based ultra-matte colorful continuous-phase emulsion. And respectively reacting with polyhydroxyalkanoate and polyacrylic acid to obtain the product. The modified compatilizer has a macromolecular network structure rich in ester groups, can prevent color spots from being burnt, enhances the compatibility of a continuous phase, and achieves the effect of being suitable for water-in-water and sand-in-water systems at the same time. Meanwhile, by grafting with polyacrylic acid, carboxyl is introduced into the modified compatilizer, interaction with other components can be generated, and the water resistance, weather resistance and other properties of the product are improved. In addition, all the components are synergistic, the compatibility of the components is improved through the modified compatilizer, and the extinction unit is uniformly dispersed in the emulsion, so that the continuous-phase gloss can reach ultra-matte finally.

An isotropic wash composition having a fatty acid esterified nonionic thickener is described. The wash composition may be translucent or transparent, stable, mild and suitable for delivery of benefit agents, such as organic acids, for anti-acne benefits.

The invention provides SMMS non-woven fabric and a preparation method thereof, and belongs to the technical field of non-woven fabric. The preparation method comprises the steps of preparing the spunbond layer, preparing the melt-blown layer and compounding. The step of preparing the spunbond layer comprises the steps of preparing reinforced filler and mixing and forming; the preparation of the reinforced filler comprises the following steps: adding maleic anhydride grafted polypropylene into N, N-dimethylformamide, uniformly stirring, adding polypropylene oxide glycol and p-toluenesulfonic acid at 62-66 DEG C, heating to 120-130 DEG C, and refluxing for 3.5-4.0 hours in a nitrogen atmosphere to obtain a modified liquid; adding nano calcium carbonate into the modified liquid, controlling the temperature to be 78-83 DEG C, and adding polyglycerol fatty acid ester to obtain enhanced filler; according to the prepared SMMS non-woven fabric, the strength of the non-woven fabric is improved, meanwhile, the air permeability is guaranteed, and the SMMS non-woven fabric is good in production stability, good in softness, good in light aging resistance and excellent in overall stability.

The present application relates to the field of beta-hydroxy fatty acid ester polymer preparation, further to a kind of beta-hydroxy fatty acid ester polymer and the method for preparing the polymer.The structural formula of the polymer is as shown in formula 1:Wherein, R1 is H or C1-C12 alkyl, R2 is C1-C6 alkyl;The weight average molecular weight of the polymer is 8000-200000;The number average molecular weight of the polymer is 5000-180000;Polydispersity index is 1-2.5.The beta-hydroxy fatty acid ester polymer of the present application has higher molecular weight, narrower molecular weight distribution, has the performance of corresponding biofermentation synthesis beta-hydroxy fatty acid ester polymer, and does not contain the impurity that bio-synthesis beta-hydroxy fatty acid ester polymer is difficult to remove, has higher application value.The preparation method of the present application, reaction condition is relatively mild, process is simple, and has higher process safety.

The present invention relates to the use of ascorbic acid fatty acid esters for reducing nitrosamine formation in compositions comprising methylphenidate.

The present invention relates to a two-phase composition comprising an oil phase and an aqueous phase, said oil phase comprising: (a) at least one ester oil, and (b) at least one hydrocarbon oil; said aqueous phase comprising: (c) at least one polyglyceryl fatty acid ester, and (d) water, wherein the amount of (b) hydrocarbon oil is greater than 5% by weight relative to the total weight of the composition. The composition according to the present invention has two visually distinct phases when unmixed. However, the composition according to the present invention can transform into a single-phase composition when mixed. The single-phase composition, such as an emulsion, can provide good cosmetic effects, such as good make-up removal ability, a smooth feel during application, and inhibition of residue on the walls of a package containing the composition. The single-phase composition can return to a two-phase composition over time at a controlled demulsification rate.

A coolant composition includes a mineral oil or a synthetic oil and a surfactant, in which a conductivity of the coolant composition is lower than 0.1 μS / cm, and the surfactant is a nonionic surfactant that is a fatty acid ester having a freezing point of lower than −15° C. and having a cyclic structure.