114 results about "Dimer acid" patented technology

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.

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.

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.

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.

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.

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.

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 application discloses a primer for addition type silicone rubber and a preparation method thereof. The primer for addition type silicone rubber comprises, in parts by weight, 10 parts of dimer acid polyester dihydric alcohol, 0.5-10 parts of diisocyanate, 0.2-2 parts of polyisocyanate, 0.2-2 parts of isocyanate propyl trimethoxysilane, 0.1-1 part of vinyl trimethoxysilane, 0.1-0.2 part of N, N-diethyl-3-aminopropyl trimethoxysilane, 0.01-0.05 part of titanate catalyst and 200-800 parts of organic solvent. The primer for addition type silicone rubber has excellent adhesion to most substrates, and can form a bond with the addition type silicone rubber at room temperature, so that the addition type silicone rubber has adhesion, excellent high-temperature resistance and moisture resistance. In addition, the primer is easy to spray and convenient to operate.

This invention relates to the field of epoxy resin composite materials technology, specifically to an environmentally friendly epoxy resin composite material for the lining of fructose syrup storage and transportation tanks and its preparation method. The composite material of this invention consists of bisphenol F type epoxy resin, a flexible curing agent, nano-antibacterial reinforcing fillers, and additives. The flexible curing agent is a dimer acid-polyetheramine-cashew phenol Mannich base condensation polymer, and the nano-antibacterial reinforcing filler is nano-TiO2@ε-polylysine-silane coupling agent hybrid particles. The composite material of this invention possesses excellent flexibility, acid resistance, antibacterial properties, and low water absorption; it also exhibits strong adhesion, no migration of heavy metals or toxic organic antibacterial agents, and meets food contact safety regulations, making it suitable for the lining protection of fructose syrup storage and transportation tanks.

The application belongs to the technical field of epoxy curing agents, and specifically discloses a water-based epoxy curing agent, a preparation method and application thereof, the water-based epoxy curing agent is made of polyamine, dimer acid, polyethylene glycol, epoxy resin and water; the preparation steps are as follows: the polyamine, dimer acid and polyethylene glycol are mixed, stirred, heated and reacted, and then dehydrated by vacuum distillation; the temperature is lowered, the epoxy resin is added, stirred and heated and reacted; and then water is added to obtain the finished product. The water-based epoxy curing agent provided by the application contains a large number of amide and epoxy structures in the molecule, can balance the rigidity of the epoxy resin and the flexibility of the polyamide, maintains the flexibility of the curing agent and the fusion degree with the epoxy resin, has good hydrophilicity, and the paint film prepared by applying the water-based epoxy curing agent in the epoxy resin emulsion has excellent adhesion, water resistance and salt fog resistance.

Provided is a curable resin composition that forms a cured product that not only has low relative permittivity and low dielectric tangent but also is less likely to cause peeling of copper after being treated with a desmear solution. The curable resin composition includes a curing catalyst and first and second cyclic imide resins respectively represented bywherein A independently represents a tetravalent organic group having a cyclic structure, Q independently represents a divalent aliphatic hydrocarbon group having 6 or more carbon atoms or a dimer acid frame-derived divalent hydrocarbon group, B independently represents an arylene group having 6 or more carbon atoms, X is a hydrogen atom or a methyl group, n1 is 0 to 200 and m1 is 0 to 200 provided that n1+m1 satisfies 21 to 400, and n2 is 0 to 10 and m2 is 0 to 10.

The invention relates to a cosmetic composition comprising, in a physiologically acceptable medium, a) a polyester which is the reaction product of the following components (i), (ii) and (iii): (i) a polyglycerol-3, (ii) a dimer acid, and (iii) a fatty monoacid having from 8 to 30 carbon atoms, the components (i), (ii) and (iii) reacted being in a molar ratio of 1 mol of polyglycerol-3, from 0.5 to 1 mol of dimer acid and from 0.1 to less than 2.0 mol of fatty monoacid, b) a lipophilic silicone polymer, said polyester and said lipophilic silicone polymer being present in a weight ratio of polyester to lipophilic silicone polymer ranging from 0.25 to 6.9. The invention also relates to a process for making up or caring for keratin materials wherein the composition is applied to the keratin materials.

The application belongs to the technical field of lubricating oil, and particularly relates to an environment-friendly wear-resistant lubricating oil and a preparation method thereof. The environment-friendly wear-resistant lubricating oil comprises the following components in parts by weight: base oil 50-70 parts; poly-A olefin 60-80 parts; lanthanum dialkyldithiophosphate 2-4 parts; boron nitride@MoS2 composite material 0.5-1.5 parts; dimer acid and glycerol monooleate co-modified cerium oxide 1-3 parts; antioxidant 3-5 parts; preservative 2-4 parts; and silane coupling agent 1-3 parts. The environment-friendly wear-resistant lubricating oil prepared by the application has excellent wear resistance and relatively strong adaptability by adding the boron nitride@MoS2 composite material and cooperating with the modified cerium oxide and other materials.

The invention provides a two-component polyurethane heat-conducting structural adhesive as well as a preparation method and application thereof. The two-component polyurethane heat-conducting structural adhesive comprises a component A and a component B in a volume ratio of (0.8-1.2): 1, the component A comprises the following components in parts by weight: dimer acid modified polyol, liquid polybutadiene polyol A, a modified castor oil diluent, liquid polybutadiene A and aluminum hydroxide heat-conducting powder A; and the component B comprises the following components in parts by weight: an isocyanate-terminated prepolymer, isocyanate A, liquid polybutadiene B and aluminum hydroxide heat-conducting powder B. The specific composition of the component A and the component B in the two-component polyurethane heat-conducting structural adhesive is designed, and the two-component polyurethane heat-conducting structural adhesive with higher heat conductivity coefficient, proper shear strength, better mechanical property and better aging property is prepared by matching the components.

To provide a thermosetting resin composition which has a good balance between dielectric properties and adhesive force, is excellent in storage stability, and can give a cured product excellent particularly in desmear resistance (etching liquid resistance).SOLUTION: The thermosetting resin composition contains (A) a maleimide compound having one or more hydrocarbon groups derived from a dimer acid skeleton in one molecule, (B) a phenol resin having a triazine ring, and (C) a phosphorus-based curing accelerator, and does not contain an epoxy resin.SELECTED DRAWING: None

The present disclosure generally relates to a waterproofing polymer that is a reaction product of the following components: (i) at least one polyglycerol; (ii) at least one dimer acid; and (iii) at least one fatty acid having 8-30 carbon atoms, wherein (iii) and (i) are in a molar ratio of less than 2:1. The components are charged to a reaction vessel and subsequently reacted to produce a polyester polymer having excellent waterproofing properties. The polymers impart high static and water-resistant SPF to water-in-oil sunscreen formulations.

The invention discloses ink resin for a flexible circuit board and a preparation method of the ink resin. The ink resin is a composition based on acrylate polyurethane epoxy resin and comprises the following components in percentage by mass: dimer acid, 2, 2, 2-trifluoroethyl acrylate, a difunctional silane coupling agent, a latent imidazole curing coordinator and the like, and the preparation method adopts a step-by-step prepolymerization process catalyzed by bismuth triisooctanoate. The grafting site of the long-chain flexible segment is controlled; illumination with specific wavelength is adopted for assistance in the polyurethane addition reaction; through the synergistic effect of the components, the balance of the ink resin in the aspects of low dielectric constant and high bending resistance is realized, the curing method is combined with UV and infrared (IR) to assist thermocuring, the problem of curing nonuniformity of a thick ink layer and a shadow region is effectively solved, and the ink resin is suitable for high-frequency communication and dynamic bending application of a high-performance FPC (Flexible Printed Circuit).

To provide a thermosetting resin composition capable of giving a cured product having a good balance between dielectric properties and adhesive force and particularly excellent in desmear resistance (etching liquid resistance).SOLUTION: A thermosetting resin composition comprising (A) a maleimide compound having one or more hydrocarbon groups derived from a dimer acid skeleton in one molecule, (B) an epoxy resin having two or more epoxy groups in one molecule, (C) a phenol resin having a triazine ring, and (D) a curing accelerator, wherein a ratio (Ep / Ph) of the number of epoxy groups (Ep) in the epoxy resin of the component (B) to the number of phenolic hydroxyl groups (Ph) in the phenol resin of the component (C) satisfies the following formula (1): SELECTED DRAWING: None

The invention relates to the technical field of metal working fluids, in particular to a polyether amide lubricant, a synthesis method and application of the polyether amide lubricant in the metal working fluids, the synthesis method of the polyether amide lubricant comprises the following steps: carrying out dehydration condensation reaction on dimer acid and polyether amine under the action of a catalyst to obtain a product 1; adding diethylenetriamine into the product 1 for reaction to obtain a product 2; dehydrating the product 2, adding ethylene oxide, and carrying out an alkoxylation reaction to obtain a product 3; and dehydrating the product 3, and carrying out an alkoxylation reaction on the dehydrated product 3 and epoxypropane under the action of a catalyst to obtain the polyether amide lubricant. The prepared polyether amide lubricant is added into a metal working fluid, and the prepared metal working fluid has good lubricity, hydrolysis resistance, defoaming performance, hard water resistance and anti-rust performance.

The application provides a biodegradable wrapping film and a preparation method and application thereof. The material of the biodegradable wrapping film comprises a biodegradable resin base and a dimer acid polyol. The biodegradable resin base comprises a copolymer of butylene adipate and butylene terephthalate. By adding the dimer acid polyol into the material of the biodegradable wrapping film, the obtained biodegradable wrapping film has excellent viscosity and biodegradability, and is very friendly to human bodies and the environment due to the advantages of good viscosity and good compatibility of the dimer acid polyol with the biodegradable resin.