186 results about "Dimer acid" patented technology

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 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 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 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 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.

The invention relates to the technical field of waterborne polyurethane, in particular to a low-viscosity waterborne polyurethane adhesive and application thereof. Comprising a component A and a component B. The component A comprises active molecules, an end-capping reagent and a chain extender, the active molecules comprise a first active molecule, a second active molecule, a third active molecule, a fourth active molecule and a fifth active molecule, the first active molecule is prepared from hydroxyl-terminated rubber, isocyanate and dimer acid polyester polyol, and the second active molecule is prepared from hydroxyl-terminated rubber, isocyanate and dimer acid polyester polyol. The second active molecule comprises a polyoxypropylene polyoxyethylene block copolymer, the third active molecule comprises modified polyether polyol, the fourth active molecule comprises polybutylene adipate, the fifth active molecule comprises dimethylolpropionic acid, and the weight ratio of the second active molecule to the fourth active molecule is 1: (2-5). And the component B comprises a curing agent. The curing agent has excellent thermal shock resistance and high-temperature aging resistance, and is suitable for various curing agents.

Title: COSMETIC COMPOSITION COMPRISING A NATURAL RESIN, A CELLULOSE ETHER, A PARTICULAR POLYESTER, VOLATILE COMPOUNDS AND A CELLULOSE-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, comprising:- at least one natural resin,- at least one alkylcellulose whose alkyl group is C2-C3,- 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 components (i), (ii) and (iii) reacted 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 monofatty acid,- at least one C2-C6 monoalcohol,- at least one volatile oil;- optionally at least one non-volatile hydrocarbon oil, different from the aforementioned polyester, or silicone, as well as their mixtures; - at least one cellulose-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 technical field of polyurethane materials, and discloses a formula and a preparation method of hydrolysis-resistant polyurethane synthetic leather, the formula comprises: 85.0-90.0 parts of poly (1, 4-butylene adipate); 12.0 to 15.0 parts of dimer acid polyester polyol; 3.0 to 4.0 parts of epoxy linseed oil; 1.0 to 1.5 parts of castor oil; and 41.0 to 46.0 parts of diphenylmethane diisocyanate (diphenylmethane diisocyanate). 13.3 to 20.0 parts of a chain extender solution and the like. The preparation method comprises the following steps: premixing the hydrophobic components, adding the main soft segment, dehydrating, reacting with isocyanate to obtain a prepolymer, carrying out solution chain extension to obtain slurry, and finally carrying out wet solidification, washing and drying to obtain a finished product. By utilizing the hydrophobic shielding effect of the long carbon chain side group of the dimer acid and the steric hindrance effect of the special chain extender, the hydrolysis resistance of the resin layer is remarkably enhanced, and the service life of the synthetic leather is prolonged.

[Problem] To provide a bisalkenyl-substituted nadimide which gives a film that has a low dielectric constant and a low dielectric loss tangent in a GHz band (in particular, in a 10 GHz band) and has excellent flexibility. [Solution] A bisalkenyl-substituted nadimide according to the present invention is represented by general formula (1). (In formula (1), R1 and R2 each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and A represents a divalent hydrocarbon group that is derived from a dimer acid skeleton.)

To provide a polyester-based resin composition which uses a raw material derived from a plant friendly to the global environment, has good adhesive physical properties to various adherends, and is excellent in adhesive physical properties such as an adhesive force and a holding force.SOLUTION: A resin composition contains a polyester-based resin (A), in which the polyester-based resin (A) contains a structural unit derived from at least one compound (a1) of dimer acids and dimer diol, and a structural unit derived from an aromatic compound (a2), the structural unit derived from the aromatic compound (a2) contains an aromatic compound derived from a thermoplastic polyester resin (excluding polyester-based resin (A)), and a number average molecular weight of the polyester-based resin (A) is 3,000 or more.SELECTED DRAWING: None

To provide an epoxy resin-based adhesive composition capable of enhancing vibration damping performance of an adhesive layer used in a vehicle.SOLUTION: The epoxy resin-based adhesive composition for use in a vehicle contains a bisphenol A type epoxy resin, a polyalkylene glycol diglycidyl ether, a dimer acid diglycidyl ester, and a compound having a phenolic group.SELECTED DRAWING: None

The invention relates to the technical field of supporting equipment treatment, and discloses a mining anchor rod differential long-acting corrosion prevention method based on function division. The anchor rod is subjected to oil and rust removal and sand blasting treatment; the threaded section is coated with water-based zinc-aluminum coating liquid and pre-dried, and a coating liquid binder base material is formed by compounding silane hydrolysate and titanate; a pipe body is preheated and then subjected to partitioned powder spraying, zinc-containing powder coating is sprayed to a transition area of a free section to form a flexible buffer layer, wear-resistant powder coating is sprayed to a main body area of the free section to form a wear-resistant protective layer, and the powder coating takes dimer acid modified epoxy resin as a matrix. Wherein the wear-resistant powder coating comprises modified nano silicon carbide and glass flakes; and finally performing high-temperature curing to form the film. The anti-cracking performance of the transition area is matched with the wear resistance of the main body area, the corrosion resistance and the anti-sticking capacity of the threaded section are improved, and the anti-cracking anti-sticking threaded rod is suitable for long-term protection under complex underground working conditions.

This application relates to a fluid water-in-oil emulsion comprising: A) at least one polyester, which is a 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 monocarboxylic acid having 8 to 30 carbon atoms, wherein the reacting components (i), (ii) and (iii) are in a molar ratio of 1 mole of polyglycerol-3, 0.5 to 1 mole of dimer acid, and 0.1 to less than 2.0 moles of fatty monocarboxylic acid; B) at least one continuous oil phase comprising: 1) at least one volatile hydrocarbon oil; and 2) optionally at least one non-volatile oil; and C) at least one aqueous phase dispersed in the oil phase, wherein the liquid component of the aqueous phase accounts for at least 50% by weight of the total weight of the composition; and D) At least one nonionic surfactant with an HLB of less than 8.0, the chemical structure of which is generated by the reaction of at least one polyhydroxystearic acid and / or at least one polyricinoleic acid with a polyol containing at least two alcohol functional groups; the weight ratio of nonionic surfactant D) to polyester A) is greater than or equal to 0.9 and preferably greater than or equal to 1.0.

This invention discloses a low-temperature resistant composite flotation reagent for coal preparation and its preparation method, specifically relating to the field of flotation technology. The reagent is formed by emulsification of a composite collector, a composite frother, and an aqueous phase. The composite collector contains kerosene, n-dodecane, oleic acid, dimer acid, surfactant components, and low-temperature stabilizing components. The composite frother contains terpineol, pine oil, sec-octanol, and sodium α-olefin sulfonate, etc. Through compounding and synergistic effects, high-speed shear emulsification, and high-pressure homogenization, the obtained reagent exhibits good dispersibility and stability at -5 to 15°C, and can improve the flotation efficiency, clean coal yield, and combustible gas recovery rate of fine coal slime and high-ash, difficult-to-separate coal slime without heating the coal slurry.

The present invention relates to a cosmetic composition, notably 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 product of reaction of components (i), (ii) and (iii) below: (i) at least one polyglycerol-3, (ii) at least one dimer acid, and (iii) at least one fatty monoacid containing from 8 to 30 carbon atoms; the reacted components (i), (ii) and (iii) being in a mole ratio of 1 mol of polyglycerol-3, 0.5 to 1 mol of dimer acid and from 0.1 to less than 2.0 mol of fatty monoacid, - at least one volatile solvent, - optionally at least one nonvolatile hydrocarbon-based oil, - at least one filler of diatomaceous earth, silica or unmodified hectorite type. The invention also relates to a process for treating, notably for making up, human keratin materials, in which this composition is applied to said keratin materials.