36results about "Wax coatings" patented technology

This invention discloses a method for preparing a microcapsule-based photothermal self-healing anti-icing coating, belonging to the field of functional coating materials technology. The method includes: obtaining the core material and wall material composition parameters of the microcapsules, and collecting the polyacrylamide concentration and dopamine polymerization time; constructing a morphology-photothermal correlation model of the microcapsules to obtain the predicted photothermal conversion efficiency; performing multi-objective optimization on the core and wall material composition parameters with the target photothermal conversion efficiency as a constraint, and iteratively inverting to obtain the optimal microcapsule configuration; preparing primary microcapsules and composited with a dopamine photothermal modification layer on their surface to obtain a photothermal self-healing microcapsule additive; mixing the photothermal self-healing microcapsule additive with an epoxy resin-based coating at an adaptive mass ratio, coating and curing to obtain an anti-icing coating. This invention achieves accurate prediction of the photothermal conversion efficiency of microcapsules and intelligent optimization of composition parameters, obtaining an anti-icing coating with both high photothermal conversion efficiency and rapid self-healing capability.

Provided are a method for measuring the wax concentration of a paint, a coating method, and a method for manufacturing a surface-treated steel sheet, which can measure the wax concentration contained in the paint at a point before applying the coating to the target material to be coated. 【Solution means】A solid content extraction step (step S101) of heating the paint to extract a solid containing wax, a wax extraction step (step S102) of immersing the solid in an organic solvent to obtain a wax extract, an analysis step (step S103) of analyzing the wax extract, and a calculation step (step S104) of calculating the wax concentration from the analysis results, and the heating conditions of the solid content extraction step satisfy the following. T W +20 ≦ T ≦ T W +70 90 ≦ t ≦ 150 T W +130 < T + t < T W +190 T is the heating temperature (°C), T W is the melting point of the wax (°C), and t is the heating time (minutes).

The present invention relates to a coating composition that provides high resistance to dirt, friction and polishing, due to the presence of mineral fillers and polymeric dispersions that promote resistance to polishing and meet wet abrasion resistance, said composition comprising: (a) at least one mineral filler selected from nepheline syenite, natural diatomite or a mixture thereof; (b) at least one silica-based matting agent; (c) at least one non-ionic aqueous emulsion selected from paraffin wax and high-density polyethylene wax or a mixture thereof; and (d) at least one additional component selected from the group consisting of solvent, dispersing agent, binding polymer and mixtures thereof. The present invention also relates to the use of the composition for the preparation of a washable matte acrylic paint product and matte acrylic paints containing the composition as claimed herein.

The application belongs to the technical field of food packaging materials and surface modification, and discloses a full-biobased degradable super-hydrophobic composite coating as well as a preparation method and application thereof. The composite coating comprises a first coating, which is a dry solidified layer of a composite dispersion liquid containing corn protein, inorganic nanoparticles and bacterial cellulose; and a second coating formed on the surface of the first coating, which is a solid film layer after volatilization of a solvent of a hot wax solution. The core component of the application is derived from natural biomass, which fundamentally eliminates the use of traditional paper cup plastic film coating or fluorine-containing chemicals, and realizes full-biobased, rapid degradable and environment-friendly coating. The static water contact angle of the obtained coating is greater than 150°, and the rolling angle is less than 10°, which reaches the super-hydrophobic standard. The simple solution blending and coating process provides a reliable and highly industrialized solution for the development of green paper cup products, and has a wide application prospect.

A wood preservative composition comprising 4,5-dichloro-2-octylisothiazol-3(2H)-one, a method of treating a wood substrate therewith, and a wood product produced therefrom are provided. The wood preservative composition comprises at least 0.5% by weight of DCOI based on the total weight of the composition and a retaining additive comprising a solvent-borne polymeric resin, a wax, or a combination thereof. A weight ratio of the DCOI to the retaining additive in the composition is in a range of 1:5 to 5:1.

The application discloses a preparation method of food-grade rice bran wax-based super-hydrophobic antibacterial coating and application thereof, and belongs to the technical field of coating. The method comprises the following steps: dissolving food-grade rice bran wax in an organic solvent, adding a food-grade emulsifier, and forming a rice bran wax-emulsifier composite solution; dispersing nano antibacterial raw materials in a non-polar solvent, adding a silane coupling agent, and performing surface modification under acidic conditions to obtain hydrophobic nano antibacterial powder; and compounding the rice bran wax-emulsifier composite solution and the hydrophobic nano antibacterial powder to obtain food-grade rice bran wax-based super-hydrophobic antibacterial coating. The coating is coated on the surface of a substrate, dried and solidified to obtain a super-hydrophobic antibacterial coating. Through the synergistic effect of rice bran wax and modified nano antibacterial raw materials, a stable micro-nano rough structure is constructed, so that the coating has excellent super-hydrophobic performance and persistent broad-spectrum antibacterial function. The coating has good mechanical strength and environmental friendliness, and is suitable for food and drug packaging, medical materials and other fields.

This invention relates to the field of food packaging and functional food technology, and discloses an edible soybean residue-based cup with preservation and health-promoting functions, and its preparation method. The cup includes a soybean residue-based preform, which is formed by extrusion injection molding from soybean residue ultrafine powder, composite starch, and pH-sensitive health-promoting microcapsules. Its inner wall is coated with an active preservation layer containing glucose oxidase, catalase, and nisin, and its outer surface is coated with a physical barrier film formed by beeswax and shellac curing. This invention improves the water resistance and structural stability of the substrate by constructing a physical barrier film on the outer wall to seal pores; it actively reduces the oxygen partial pressure inside the cup and inhibits microbial growth through the synergistic effect of the multi-enzymatic reaction and antimicrobial peptides in the inner wall preservation layer, thus extending the shelf life of the food; and it combines microcapsule technology to protect the active core material in gastric juice and target its release in the intestine, improving the bioavailability of the health-promoting components.

The application discloses a kind of preparation methods of high-precision microstructure coating, comprising the following steps: preparation template: using photo-curing 3D printer utilizes HTL high-temperature light-sensitive resin material preparation includes microstructure template, substrate is washed with anhydrous ethanol and deionized water;Preparation precursor liquid: the solution consisting of film-forming material is added to magnetic nano-substance and wax solution is mixed uniformly to obtain precursor solution;Microstructure coating preparation: the precursor liquid prepared by S2 is poured into template, the whole set of device is placed in magnetic field, solidifies after standing, template is stripped to obtain high-precision microstructure super-hydrophobic coating.The preparation method of the application under the joint action of template, magnetic field and wax, the size precision of coating microstructure prepared is high, and the structure is complete.The method is simple in manufacturing process, and the cost is controllable, and is suitable for mass production.

A packaging container, or a portion thereof, comprising a metal substrate, and an interior coating applied on at least a portion of the metal substrate. The interior coating formed from a coating composition including one or more film-forming binder resins and composite particles comprising one or more waxes and one or more inorganic sulfur-species scavenging component. The coating compositions protect closures or containers herein from corrosion due to at least sulfur or sulfur dioxide containing species.

To provide an aqueous coating composition for cans that excels in lubricity and wear resistance and also excels in processability.SOLUTION: A aqueous coating composition for cans contains an acryl modified epoxy resin (A), at least one wax selected from a group consisting of three waxes with different melting points (B), a polyolefin aqueous dispersion with an average particle size of 0.1-5 μm and a polyolefin penetration of 8 or less (C), and a phenolic resin (D) in a specific compositional ratio.SELECTED DRAWING: None

This invention discloses a four-phase synergistic creative medium composition, its preparation method, and its application. The preparation method includes the following steps: (1) treating pigments with an interface modifier to obtain modified pigments; (2) melting wax-based materials and lubricants in a main reactor to form a uniform oil-phase continuous matrix; (3) adding the modified pigments to the molten oil phase and stirring to disperse them evenly, then dripping the preheated aqueous phase component at a constant rate of 40~60 ml / min to cause interfacial reorganization within the system, transforming it from an oil-in-water type to a bicontinuous phase structure; (4) adding functional resins to the integrated system and stirring to dissolve them, then crystallizing and solidifying the system through gradient cooling, followed by molding or extrusion molding and aging to obtain the finished product. The composition provided by this invention is an "all-functional" medium—combining the smoothness of oil pastels, the durability of crayons, the detail of pencils, and the fluidity of watercolors.

The application provides a low-moisture-absorption release film and a preparation method thereof. The low-moisture-absorption release film comprises, from bottom to top, a modified substrate layer, a primer layer and a low-moisture-absorption release agent layer. The modified substrate layer is a core support layer for improving the overall moisture resistance and structural stability. The primer layer is used to enhance the adhesion between the modified substrate and the low-moisture-absorption release agent layer, and also to assist in improving the moisture resistance. The low-moisture-absorption release agent layer gives the film excellent release performance and low-moisture-absorption characteristics. The layers work together to achieve the effect of low-moisture-absorption and high stability.

The application discloses a leather finishing aid and a preparation method and application thereof, and belongs to the technical field of leather finishing. The leather finishing aid comprises the following components in parts by weight: water-soluble graphene: 1-3 parts; solid paraffin: 3-8 parts; grease: 5-10 parts; high-grade fatty alcohol: 1-5 parts; thickening agent: 0.2-1 part; emulsifier: 1-3 parts; matt filler: 10-20 parts; modified casein: 5-15 parts; and water: 60-75 parts. The leather finishing aid can effectively avoid the problem of adhesion of stacked leather, improve the tear strength of a coating, and reduce the tensile strength of a coating film. Moreover, the leather finishing aid can obtain leather coatings with different gloss, effectively improve the softness of a coating, endow the coating with a delicate and soft hand feeling, and improve the hiding effect of the coating.

This invention discloses a waterborne silicone-modified acrylic resin, its preparation method, and its application, specifically relating to the field of polymer coating materials for agricultural use. This invention introduces a new composite silicone-modified system of "nano-SiO2 + hydroxyl silicone oil + silane coupling agent." Pretreatment of nano-SiO2 with a silane coupling agent solves the aggregation problem, while hydroxyl silicone oil enhances the water resistance of the film. The addition of hydroxypropyl acrylate allows for precise control of crosslinking density through hydroxyl groups. The emulsifier is replaced with a mixture of sodium dodecyl sulfate and isooctylphenol polyoxyethylene ether at a ratio of 1:1.2-1:1.5, balancing emulsion dispersibility and seed compatibility. This resin exhibits uniform film formation, strong adhesion, and no adverse effects on seed germination, making it particularly suitable for coating seeds of grain crops (wheat, corn, soybean, rice), cash crops (cotton, rapeseed), and vegetable crops. It can impart a slow-release function to the coating agent, combining environmental friendliness with practical value.

The present invention aims to provide a water-repellent paper that exhibits excellent water repellency, water friction resistance, and blocking resistance even with a small mass per unit area of ​​the water-repellent layer. [Solution] The water-repellent paper has a paper base material and a water-repellent layer, the water-repellent layer contains an acrylic resin and a hydrocarbon wax, and the mass of the water-repellent layer per unit area is 5 g / m². 2 The following is a water-repellent paper: The water-repellent paper wherein the hydrocarbon wax is at least one selected from the group consisting of paraffin wax, microcrystalline wax, carnauba wax, and polyethylene wax.

The application relates to the field of super-hydrophobic coating materials, in particular to an anti-condensation corrosion-resistant super-hydrophobic coating material based on a micro-nano composite structure and a preparation method thereof. The anti-condensation corrosion-resistant super-hydrophobic coating material based on the micro-nano composite structure is prepared from raw materials including a film-forming substance, an auxiliary resin, a micro-nano composite agent, a curing agent, an auxiliary reinforcing agent and a solvent. The application aims to provide the anti-condensation corrosion-resistant super-hydrophobic coating material based on the micro-nano composite structure, which not only has the super-hydrophobic property, but also has excellent anti-frosting, anti-condensation and self-cleaning functions and other application performances, can be completely cured at normal temperature, has high adhesion to various substrates, and thus can fully meet the comprehensive application requirements of the super-hydrophobic coating material in the existing application fields.

The present application provides an ultrasonic welding release agent, which comprises the following components in percentage by mass: 90-95% of isododecane, 2-6% of polydimethylsiloxane, and 1-5% of liquid paraffin. The ultrasonic welding release agent is compounded with 90-95% of isododecane, 2-6% of polydimethylsiloxane, and 1-5% of liquid paraffin, quickly forms an ultrathin inert isolation film, efficiently blocks the aluminum welding joint, volatilizes fast, has no residue, does not pollute the wire harness, and does not affect the ultrasonic energy transmission and welding tension.

The invention provides a water-based coating and a preparation method and application thereof, and relates to the technical field of water-based coatings and hydrophobic coatings. Modified acrylate emulsion and biomass wax emulsion are compounded to prepare the water-based coating suitable for the outer surface of a molded pulp bottle, and in the process of preparing the water-based coating, the outer surface of the molded pulp bottle is coated with the water-based coating. Biomass wax with low surface energy, sodium alginate as an adhesive and modified acrylate as a film forming material are adopted to construct the water-based paint with a micro-nano structure with a super-hydrophobic surface with low surface energy and high strength, the water-based paint does not contain organic solvents, fluorides and other substances, the preparation method is simple, convenient and environmentally friendly, and the water-based paint is suitable for industrial production. The water-based paint is convenient for batch preparation and production, and has good hydrophobicity and super-hydrophobicity when being coated on a porous conveying material.

The application provides a preparation method of protective wax and application thereof, and belongs to the technical field of protective wax and comprises the following steps: mixing Brazil palm wax, rice bran wax, beeswax, soybean wax, hydrogenated palm oil and polyolefin wax, heating, melting and granulating. The technical scheme provided by the application improves the freezing point of the protective wax, widens the applicable temperature, has strong ozone resistance, and does not have the blooming phenomenon in appearance.

The purpose of this disclosure is to provide an oil-resistant composition that can impart high oil resistance without requiring a fluororesin, and an oil-resistant substrate using the same. [Solution] The oil-resistant composition of the present disclosure comprises water and emulsion particles dispersed in the water, having an average particle size of 0.60 μm or less, and is characterized in that the content of (meth)acrylic acid units in the ethylene-vinyl acetate polymer compound is 0 to 5% by mass. The oil-resistant substrate of the present disclosure comprises a substrate and an oil-resistant layer formed by drying the oil-resistant composition, which is disposed on the substrate.

To provide a food packaging sheet that is excellent in oil resistance and blocking resistance, as well as excellent in food release properties and low gloss. [Solution] A food packaging sheet comprising a coating layer arranged on a substrate, wherein the coating layer has endothermic peaks measured by a differential scanning calorimeter within the ranges of 40°C to 80°C and 100°C to 150°C. Preferably, the coating layer contains wax particles (A1), and the surface of the coating layer has 830 to 17,000 protrusions / mm² with a diameter of 3 μm to 13 μm, originating from the wax particles (A1). 2 The food packaging sheet having the aforementioned.

The present disclosure provides: an oil-resistant agent composition which is capable of imparting high oil resistance without requiring a fluorine-based resin; and an oil-resistant base material which uses the composition. An oil-resistant agent composition according to the present disclosure contains water and emulsion particles dispersed in the water, the emulsion particles having an average particle diameter of 0.60 µm or less, and containing an ethylene-vinyl acetate copolymer compound, and is characterized in that the content of a (meth)acrylic acid unit in the ethylene-vinyl acetate copolymer compound is 0-5 mass%. An oil-resistant base material according to the present disclosure comprises a base material and an oil-resistant layer that is disposed on the base material and is formed by drying the oil-resistant agent composition.

A packaging film containing a protein, a plasticizer, and a reducing agent is provided. Also provided is a coating layer for use with the packaging film, the coating layer containing wax particles, ethylcellulose, and an emulsifier. The film is prepared by a method comprising the steps of: mixing the protein with water to form a first mixture; obtaining the supernatant from the first mixture; adding the plasticizer and reducing agent to the supernatant to form a second mixture; and drying the second mixture to form the film. The coated film is prepared by a method comprising the steps of: melting the wax to form molten wax; adding the emulsifier and solvent to the molten wax to form a third mixture; homogenizing the third mixture to form an emulsion; adding ethylcellulose to the emulsion to form a coating solution; and applying the coating solution to a film to form the coated film.

The present invention provides a novel composition containing a hydrophobic compound (A) including a hydrophobic compound (A1) and a hydrophobic compound (A2) different from the hydrophobic compound (A1), the Shore A hardness [peak] of the hydrophobic compound (A) being 10 or more and 100 or less less than the Shore A hardness [peak] of the hydrophobic compound (A1). With this composition, liquid repellency can be imparted to a substrate.

The application relates to a coated paper comprising a base paper and at least one coating applied directly or indirectly onto the base paper, wherein the coating comprises a) at least one natural wax and / or at least one carboxylic acid component; and b) at least one natural resin; wherein the permeability of the coated paper for at least one gas is reduced compared to the base paper. Furthermore, the application relates to the coating used for producing the coated paper, the production method, and the packaging produced therefrom.

The present invention relates to a micronized wax composition, a method for its production, its use for producing an aqueous formulation, an aqueous formulation comprising the micronized wax composition, and a method for producing an aqueous formulation.

The present application relates to the technical field of heat transfer printing materials, and particularly relates to a heat transfer printing material for ribbon and a preparation process thereof, the heat transfer printing material for ribbon comprises an anti-sticking layer, a base film, a light protection oil layer and a color layer, the outer side of the base film is coated with the anti-sticking layer, the inner side is coated with the light protection oil layer, and the surface of the light protection oil layer is coated with the color layer. The heat transfer printing material for ribbon prepared by the present application is clean in the demolding process, has brightness, no burr, no powder dropping and no smearing phenomenon, and has good color adhesion, can be washed by water flow, is resistant to sunlight and rubbing, can be normally used in a high-temperature and high-humidity (60 DEG C / 80%) environment, has the advantages of good universality, wide use range and the like.