255 results about "Dimer acid" patented technology

Provided is a flux that can suppress the generation of voids when an indium alloy sheet is used to perform a continuous reflow under different temperature conditions. The present invention employs a flux that contains a rosin ester, an organic acid (A), and a solvent (S). The organic acid (A) includes a dimer acid (A1) that demonstrates a weight reduction rate of not more than 1 mass % in a thermogravimetric analysis in which the dimer acid is heated up to 260° C. at a temperature rising rate of 10° C. / min. The solvent (S) includes a solvent (S1) that demonstrates the weight reduction rate of at least 99 mass % in a thermogravimetric analysis in which the solvent (S1) is heated up to 150° C. at a temperature rising rate of 6° C. / min.

The invention relates to the technical field of sealants, and discloses a full-bio-based polyurethane elastic sealant and a preparation method thereof, and the full-bio-based polyurethane elastic sealant is composed of a component A and a component B, the component A comprises bio-based polyol, a bio-based chain extender, a fumed silica thixotropic agent, a molecular sieve and a catalyst; the component B comprises bio-based isocyanate and a derivative thereof, a modified castor oil derivative, dimer acid polyol and a fumed silica thixotropic agent, the full-bio-based polyurethane two-component elastic sealant with high elastic elongation adopts full-bio-based raw materials, is environmentally friendly and renewable, reduces dependence on petroleum resources, and improves the elastic elongation rate by optimizing the components and the process. The elastic elongation is larger than or equal to 80%, excellent water resistance, weather resistance and mechanical performance are achieved, meanwhile, by adding the molecular sieve and the catalyst, the low moisture content and efficient curing are guaranteed, and the performance stability of the product is improved.

The invention relates to the technical field of resin for printing ink, and discloses alcohol-soluble polyamide resin for printing ink and a preparation method and application thereof.The alcohol-soluble polyamide resin is prepared from, by weight, 78-83 parts of vegetable oil dimer acid, 3-5 parts of ethidene diamine, 6-7 parts of hexamethylenediamine, 5-8 parts of methyl pentamethylene diamine, 3-5 parts of propionic acid and 2-3 parts of acrylic acid through condensation reaction, and a defoaming agent (10-15) ml / ton. The alcohol-soluble polyamide resin for ink provided by the invention is non-toxic, free of pungent smell, non-corrosive, non-combustible, non-explosive, excellent in adhesive force, excellent in gloss, particularly strong in freezing resistance and gel resistance, excellent in alcohol solubility, stability and solvent release property, and can be used for preparing gravure plastic film surface printing ink.

The invention provides a dimer acid type polyamide hot melt adhesive and a preparation method thereof. The polyamide hot melt adhesive comprises the following components in parts by weight: 50-90 parts of dimer acid, 5-40 parts of dicarboxylic acid, 45-130 parts of diamine, 1-10 parts of a catalyst and 5-20 parts of an antioxidant. The polyamide hot melt adhesive disclosed by the invention has relatively high softening point and melt viscosity, the adhesive property of the polyamide hot melt adhesive can be improved, and the polyamide hot melt adhesive has relatively high tensile strength and elongation at break, so that the polyamide hot melt adhesive is excellent in mechanical property and relatively wide in application range.

The invention discloses a waterborne coating for corrosion prevention of neodymium-iron-boron magnets and a preparation method and application of the waterborne coating, and the waterborne coating comprises, by weight, 40-70 parts of waterborne dimer acid modified epoxy emulsion; 2-10 parts of a coalescing agent; 0.5-4 parts of a nonionic aqueous dispersant; 2-5 parts of a phenolic aldehyde amine curing agent; 10 to 20 parts of filler; 10-20 parts of a coloring agent and the balance of water. The water-based paint disclosed by the invention can resist high-pressure water vapor erosion and normal-temperature environmental corrosion, the corrosion resistance and adhesive force of the water-based paint are equivalent to those of the existing oil paint, and the water-based paint is free of rusting and bubbling after being tested for 120 hours by PCT. The water-based dimer acid modified epoxy emulsion is used as a main material, and water is used as a diluent in the use process, so that the emission of VOC (volatile organic compounds) in the production process is greatly reduced, the environment friendliness of the production is improved, and in addition, the production cost is relatively low. Meanwhile, by adjusting curing conditions, the hardness, SST, PCT and cohesive strength of the coating can be adjusted, and the requirements of different customers are met.

The invention discloses a low-rank coal composite flotation reagent and a preparation method and application thereof, and belongs to the technical field of coal flotation of mineral processing. The agent specifically comprises a composite collecting agent and a composite foaming agent, and the composite collecting agent comprises kerosene, n-dodecane, oleic acid, dimer acid, sodium stearate, terpilenol, diethyl phthalate, alkylphenol ethoxylates, span-80, trioctyl phosphate and 2-ethylhexanol. The composite foaming agent is prepared from the following components: terpilenol, terpenic oil, sec-octyl alcohol and sodium alpha-olefin sulfonate. Compared with a traditional single flotation reagent combination, the composite flotation reagent has a remarkable effect in fine coal flotation, and particularly when coal with the particle size smaller than 0.5 mm is treated, the flotation efficiency, the clean coal yield and the combustible body recovery rate can be effectively improved. More importantly, the medicament is stable at normal temperature, the layering phenomenon is avoided, the long-term effectiveness is ensured, and the medicament has extremely high industrial application potential.

The invention discloses a multifunctional polyamide type solid propellant slurry viscosity reduction auxiliary agent and a preparation method, and belongs to the field of viscosity reduction auxiliary agents, dimer acid and a polyamine compound are subjected to a condensation reaction at 135-150 DEG C, and a polyamide prepolymer is generated in obtained reaction liquid; and cooling the reaction liquid, adding a solvent, uniformly mixing, adding a vinyl monomer at 45-60 DEG C, reacting, and finally cooling to room temperature to obtain the multifunctional polyamide type solid propellant slurry viscosity-reducing auxiliary agent. According to the present invention, the use amounts of the dimer acid, the polyamine compound and the vinyl monomer are respectively 47-67%, 18-44% and 9-25% by mass, such that the fluidity and the viscosity in the propellant slurry can be effectively improved, and the mechanical strength of the cured product can be improved;

The invention relates to the field of PE (polyethylene) protective films, and discloses a PE protective film based on reclaimed materials and a preparation method of the PE protective film. A PE protective film based on reclaimed materials is composed of a PE base material layer and a pressure-sensitive adhesive layer, and the PE base material layer is prepared from the following raw materials in parts by weight: 50-70 parts of a pretreated reclaimed PE material, 15-25 parts of PE resin, 10-20 parts of a flexibilizer, 3-5.5 parts of a filler, 3-6 parts of a compatilizer, 2-4 parts of a slipping agent, 1.5-3 parts of an antistatic agent and 1-2 parts of an antioxidant; preparation of a pretreated recycled PE material: crushing, pickling, mixing with a pretreating agent, melting, extruding and pelletizing; the pretreating agent is prepared from an isobutylene maleic anhydride copolymer, an ethylene-acrylate-methyl glycidyl ester terpolymer and dimer acid polyester polyol. The PE protective film is good in fitting stability, small molecule precipitation is not prone to being generated, oily residues are not prone to being generated during fitting, and the PE protective film is suitable for protection of precise electronic products.

The invention provides a preparation method of UV-curable water-based bio-based polyurethane resin, which comprises the following steps: putting bio-based dimer acid, glycidyl ester, a catalyst and a polymerization inhibitor into a reaction container, and reacting at 100-120 DEG C for 2-4 hours to obtain bio-based dihydric alcohol; s2, mixing the bio-based dihydric alcohol obtained in the step S1 with a solvent, stirring for 0.5-1 hour at 65-75 DEG C, then adding diisocyanate and a catalyst, continuously stirring for 2-5 hours, measuring the NCO value, and obtaining a bio-based polyurethane resin prepolymer when the NCO value is less than or equal to 0.5%; and (S2) adding binary anhydride and a catalyst into the bio-based polyurethane resin prepolymer obtained in the step (S2), and continuously stirring for 1-2 hours to obtain the bio-based polyurethane resin. The invention also provides a dispersion of the UV-curable aqueous bio-based polyurethane resin prepared by the method and a preparation method of the dispersion.

The present invention addresses the problem of providing: a novel substance which is capable of solving the problems of conventional bismaleimides each having a dimer acid skeleton; a high-concentration composition of the substance; a curable composition which contains the composition; an adhesive agent or a sealing material; a cured article obtained by curing the composition or the like; and a semiconductor device or an electronic component which includes the cured article.　Provided are: a dimer acid-modified N-substituted (meth)acrylamide; a high-concentration composition of the dimer acid-modified N-substituted (meth)acrylamide; a curable composition which contains the composition; an adhesive agent or a sealing material; a cured article obtained by curing the composition or the like; and a semiconductor device or an electronic component which includes the cured article.

The present invention addresses the problem of providing a solid cosmetic for lips having further improved transfer resistance (the effect of reducing secondary adhesion). The present invention relates to a solid cosmetic for lips, which is characterized by containing: (A) a coloring material that has been surface-treated with a treatment agent comprising an amino acid or a metal soap; (B) 15-50 mass% of at least one member selected from the group consisting of (b1) a copolymer containing a dimer acid ester and (b2) a dimer acid ester; (C) 20-70 mass% of a non-volatile hydrocarbon oil (c1) that separates when mixed with (B) at 25 DEG C or (c2) a phenyl-modified silicone that separates when mixed with (B) at 25 DEG C; and (D) a wax.

The application belongs to the technical field of materials, and discloses a special aluminum powder dispersing agent for aluminum foil rolling oil, which is composed of the following components and in the following proportions: base oil: 10-20 parts; surfactant: oleic acid diethanol amide: 40-60 parts; fatty amine polyoxyethylene ether: 10-30 parts; lubricating cleaner: dimer acid: 5-15 parts; and guerbet alcohol: 10-20 parts. The aluminum powder dispersing agent adopts oleic acid diethanol amide and T13 surfactant which have sufficient dispersion effect on aluminum powder, so as to reduce the pollution caused by aluminum powder accumulation after rolling of the aluminum foil; through introduction of the dimer acid and the guerbet alcohol, the lubricating performance of the rolling oil is improved, the oil amount on the surface of the aluminum foil after rolling is reduced, the surface cleanliness of the aluminum foil is improved, and thus the surface leakage coating condition of the aluminum foil is improved.

The present disclosure provides compositions and methods of inhibiting corrosion, including under-deposit corrosion, of a metal surface in contact with a medium. A method may include adding a composition to the metal surface. A composition may include a first reaction product, a second reaction product, a trimer acid, a solvent, and a viscosifier dimer acid. The first reaction product may be produced by reacting a first amine with a first carboxylic acid and a dimer acid. The second reaction product may be produced by reacting a second amine with a second carboxylic acid.

The application discloses a green closed-loop recyclable bio-based double-dynamic crosslinking epoxy resin and a preparation method, a recycling method and an application thereof, and the preparation method comprises the following steps: under the condition of no catalyst, curing reaction is performed on a bio-based epoxy compound, a dimer acid and an amine-based compound to obtain the green closed-loop recyclable bio-based double-dynamic crosslinking epoxy resin. The application effectively solves the problems of recycling difficulty and low recycling efficiency of traditional epoxy resin materials, and provides a new idea for structural performance design of a novel epoxy resin material.

The invention belongs to the technical field of angiographic contrast agents, and particularly relates to an angiographic contrast agent for corpses and a preparation method of the angiographic contrast agent. The angiographic contrast agent for the corpse is prepared from the following components in parts by mass: 20 to 35 parts of iodine-containing polymer, 30 to 50 parts of iodo-benzene ring compound, 90 to 150 parts of glycerol triacetate, 30 to 40 parts of dimer acid and 600 to 800 parts of liquid paraffin, the iodine-containing polymer is obtained by copolymerizing (methyl) C4-6 alkyl acrylate, polyethylene glycol diacrylate and an iodine-containing monomer, and the iodine-containing monomer is selected from at least one of 3-iodine-ethyl acrylate, 3-iodine-methyl acrylate and (methyl) iodobenzyl acrylate. The blood vessel contrast agent disclosed by the invention can realize an excellent blood vessel contrast effect on a corpse, can also obtain a relatively ideal contrast effect for a corpse with relatively long death time, and provides powerful support for the corpse work.

The invention belongs to the technical field of melt adhesives, and particularly relates to polycarbonate dimer acid dihydric alcohol and a preparation method and application thereof. The number of carbonate bonds at the two ends of a molecular chain of the polycarbonate dimer acid dihydric alcohol is larger than the number of carbonate bonds in the middle of the molecular chain of the polycarbonate dimer acid dihydric alcohol; the invention relates to a castor oil dimer acid-based adhesive which comprises the following raw materials in parts by mass: 90-100 parts of castor oil dimer acid; 50 to 60 parts of a compound polycarbonate monomer; 1-2 parts of a supported catalyst; and 0.08 to 0.25 part of an antioxidant A. The polycarbonate dimer acid diol disclosed by the invention can be widely applied to synthesis of a moisture-cured polyurethane hot melt adhesive. Compared with the traditional polyester polyol, the polycarbonate dimer acid diol disclosed by the invention can obviously improve the hydrolysis resistance and flexibility of the hot melt adhesive, so that the polycarbonate dimer acid diol shows more excellent performance in various application fields.

An epoxy resin-based adhesive composition used for a vehicle includes a bisphenol A epoxy resin, a polyalkylene glycol diglycidyl ether, a dimer acid diglycidyl ester, and a compound having a phenol group.

Embodiments of a formulation comprises at least 90 wt.% ethylene-based polymer and dimer acid, wherein the dimer acid is a polymer processing aid used to reduce melt fracture during extrusion.

This invention provides a laminate with excellent weather resistance. The coating agent of this invention comprises a dimer acid di(meth)acrylate resin, a polyfunctional (meth)acrylate compound, a photopolymerization initiator, and a light stabilizer represented by formula (1). Furthermore, the laminate of this invention comprises: a coating layer formed on a substrate layer using the coating agent of this invention; a substrate layer formed using a thermoplastic polyurethane; and an adhesive layer formed on the side of the substrate layer opposite to the side on which the coating layer is formed using at least one resin selected from acrylic, urethane, rubber, and silicone resins.

The application discloses a natural monophenol grafted dimer acid diglycidyl ester plasticizer and a preparation method and application thereof, and belongs to the technical field of bio-based plasticizers. The natural monophenol grafted dimer acid diglycidyl ester is synthesized by ring-opening etherification of dimer acid diglycidyl ester and natural monophenol. The prepared natural monophenol grafted dimer acid diglycidyl ester has a high-polarity hydroxyl group, a good-flexibility ether bond group and a compatibilized benzene ring group in the structure, and can endow a PLA product with excellent ductility and migration resistance. The application not only realizes high-value utilization of the natural monophenol in the material field, but also provides a new method for preparing a high-quality environment-friendly plasticizer, and has good practicability.

To provide a rolling bearing using a cage having high reliability capable of achieving dimensional stability required for the cage, particularly an outer ring guide cage, ductility required for a crown type cage, improvement of adhesion of grease using poly α - olefin oil or the like as base oil, and prevention of deformation at high speed.SOLUTION: In the rolling bearing comprising at least an outer ring 1, an inner ring 3, a rolling element 5 and a synthetic resin-made cage 7, the synthetic resin-made cage 7 is formed of a polyamide resin composition comprising a biomass polyamide 10T which is a polycondensate of a plant-derived 1,10-decanediamine and a petroleum-derived terephthalic acid, a PA10T in which a hard segment is a plant-derived 1,10-decanediamine and a petroleum-derived terephthalic acid, a PA10T-based thermoplastic elastomer in which a soft segment is a plant-derived dimer acid and a plant-derived dimer diamine, and a reinforcing fiber material.SELECTED DRAWING: Figure 1

This invention relates to the field of metal protection and lubrication materials, and discloses a silent, vibration-damping, film-forming, long-lasting rust-preventive oil for bearings and its preparation method. The rust-preventive oil comprises a base oil, a dynamic borate ester-organosilicon-tungsten bridging synergistic modifier, itaconic acid hydrazine, a dimer ester, calcium petroleum sulfonate, polyisobutylene, a phosphate extreme pressure agent, and an antioxidant. The dynamic borate ester-organosilicon-tungsten bridging synergistic modifier forms a reversible dynamic covalent network of borate esters with phenylboronic acid through a diol-based compound, and then undergoes a confined sol-gel polymerization reaction with vinyltriethoxysilane to form silicon-oxygen segments. These segments are then coordinated and bridged by tungstate and diol groups to construct a three-dimensional coupled structure. The rust-preventive oil of this invention has advantages such as high film density, strong adhesion, good vibration damping and noise reduction effect, and strong rust prevention durability, making it suitable for the storage and operational protection of high-end bearings.

The invention provides a heat-conducting flame-retardant polyurethane structural adhesive, which comprises a component A and a component B. The component A comprises the following raw materials by mass: 23% of polyol, 74.5% of a heat-conducting filler and 2.5% of a first auxiliary agent. The component B is prepared from the following raw materials in percentage by mass: 24% of prepolymer, 74.5% of heat-conducting filler and 1.5% of second aid; the heat-conducting filler is obtained by compounding modified aluminum hydroxide, heavy calcium carbonate and hollow glass beads; the prepolymer is a dimer acid modified polyester polyol (MDI) prepolymer and a castor oil (MDI) prepolymer, and the MDI is CDMDI-100L (Code Dimethyl Diisocyanate). The CDMDI-100L is adopted as the raw material of the polyurethane structural adhesive, the CDMDI-100L is carbodiimide modified MDI, can react with polyhydric alcohols, and has lower toxicity than TDI, and the moldability of the polyurethane structural adhesive formed by the MDI is relatively good, so that the mechanical property of the polyurethane structural adhesive is improved.

The invention belongs to the technical field of polyamide preparation, and particularly relates to a preparation method for reducing the freezing point of bio-based polyamide. A bio-based polyamide prepolymer is prepared from raw materials including dimer acid, isostearic acid, ethanediamine, hexamethylenediamine, a polyether crosslinking monomer, a branched chain alkylamine monomer, an antioxidant dispersant and a high-temperature stabilizer, and then the bio-based polyamide prepolymer is mixed with alcohol-soluble polyester and a compatilizer to obtain bio-based polyamide which has a low freezing point, good anti-gel performance and environmental friendliness and can be used for preparing the bio-based polyamide. And the printing quality in a low-temperature environment can be obviously improved.

The invention discloses a skin-touch water-cured polyurethane bandage and a preparation method thereof. The skin-touch water-cured polyurethane bandage is prepared by coating a polyurethane prepolymer on a base material, the polyurethane prepolymer is prepared from the following components in parts by weight: 100 parts of isocyanate, 95 to 250 parts of hydroxyl-terminated modified organic silicon prepolymer, 0.9 to 5 parts of a catalyst, 4.5 to 15 parts of a dehydrating agent, 0.5 to 2.2 parts of a de-foaming agent and 0.5 to 3.7 parts of a stabilizer; the hydroxyl-terminated modified organic silicon prepolymer is obtained by carrying out a reaction on an organic silicon prepolymer containing hydroxyl and dimer acid diisocyanate (DDI). The skin-touch water-cured polyurethane bandage has the skin-like touch feelings such as fineness, softness and moisture which are not possessed by a conventional water-cured polyurethane bandage, can relieve discomfort caused by hardness and roughness of the bandage when the bandage is in contact with the skin, and meanwhile has the advantages of being light in weight, high in strength, free of sticking to gloves, good in moldability, convenient to operate and the like.

This invention relates to the field of lubricant preparation technology and provides a method for preparing a neutralization-free modified amine ethoxylated compound lubricant. The method includes the preparation of oligomeric amides and alkoxylated adducts. An oligomer is formed by condensing a dimer acid with diethylenetriamine to form an amide. Subsequently, the oligomer is modified with ethylene oxide and propylene oxide, alkoxylating the secondary amino groups in the diethylenetriamine. The alkoxylated secondary amino groups act as an alkaline neutralizer, while the dimer acid replaces the fatty acid as a lubricant. By adjusting the ethylene oxide-propylene oxide ratio and polymerization structure, products with emulsifying functions for semi-synthetic cutting fluids and low-foaming products for fully synthetic cutting fluids can be synthesized. This reduces preparation costs and environmental pollution, and allows for the preparation of high-performance adducts suitable for different application areas. It also improves product quality and stability, resulting in a promising market.

The present invention relates to an aluminum can filled with wine, which comprises: an aluminum can and wine enclosed in the aluminum can and containing 4.3 mg / L or less of molecular SO2 and 350 mg / L or less of chloride ions, the aluminum can including: an aluminum plate, a resin film provided on a face of the aluminum plate that becomes a can inner surface side, and an adhesive layer interposed between the aluminum plate and the resin film and bonding them; wherein the resin film includes a first resin layer as a topmost surface layer and a second resin layer containing a dimer acid copolymer polyester resin, and at least one of the resin layer constituting the resin film and the adhesive layer contains calcium carbonate.

Title: COSMETIC COMPOSITION COMPRISING A PARTICULAR POLYESTER, AT LEAST ONE VOLATILE SOLVENT AND AN UNMODIFIED HECTORITE TYPE FILLER AND METHOD USING IT The present invention relates to a cosmetic composition, in particular for making up human keratin materials, in particular the skin and / or the lips, preferably the lips, comprising:- at least one natural resin,- at least one polyester which is the reaction product of the following components (i), (ii) and (iii): (i) at least one polyglycerol-3 (ii) at least one dimer acid, and (iii) at least one fatty monoacid having from 8 to 30 carbon atoms, the reacted components (i), (ii) and (iii) being in a molar ratio of 1 mole of polyglycerol-3, from 0.5 to 1 mole of dimer acid and from 0.1 to less than 2.0 moles of fatty monoacid,- at least one volatile solvent, - optionally at least one non-volatile hydrocarbon oil, - at least one unmodified hectorite type filler.It also relates to a method of treatment, in particular of makeup, of human keratin materials, in which this composition is applied to said keratin materials.

The invention relates to the field of hot melt adhesives, and particularly discloses bio-based polyester polyol for a hot melt adhesive as well as a preparation method and application of the bio-based polyester polyol. The bio-based polyester polyol for the hot melt adhesive is dimer acid polyester polyol containing an epoxy phosphate group; the preparation method comprises the following steps: performing hydrolytic acidification on flax oil to obtain unsaturated fatty acid; synthesizing a double-bond-containing dimer acid intermediate by a low-temperature enzyme catalysis method; introducing an epoxy group through double-bond epoxidation reaction; carrying out functionalization reaction with a phosphoric acid group to construct epoxy phosphate functionalized dimer acid; and constructing a rigid double-ring skeleton structure to prepare the bio-based polyester polyol. The bio-based polyester polyol disclosed by the invention can be used for preparing a hot melt adhesive, and the hot melt adhesive has relatively high bio-based content, bonding strength, base material universality and initial adhesion to a polar base material.

The polyester resin is a first copolymer obtained by polymerizing an acid component containing 50 mol% or more of an aromatic dicarboxylic acid component and 2-50 mol% of a dimer acid component with respect to the total amount of the acid component, and an alcohol component containing 50 mol% or more of a 1, 4-butanediol component with respect to the total amount of the alcohol component. The tetrahydrofuran generated when the first copolymer is heated at 150 DEG C for 1 hour is 1 [mu] g or less per 1 g of the first copolymer. The acid component preferably comprises a terephthalic acid component and a dimer acid component, or comprises a 2, 6-naphthalic acid component and a dimer acid component.