97 results about "Acrylic polymer" patented technology

This invention discloses a production process for sulfur dioxide-resistant electroplated aluminum and the resulting electroplated aluminum, relating to the field of electroplated aluminum. The production process for sulfur dioxide-resistant electroplated aluminum includes: coating a release coating onto a base film layer to obtain a release layer; coating an imaging coating onto the release layer to obtain a color layer; molding and aluminum plating the color layer to obtain an aluminum-plated layer; and coating the aluminum-plated layer with an adhesive to obtain electroplated aluminum. The imaging coating comprises the following raw materials in parts by weight: 80-100 parts of modified monomeric acrylic polymer, 7-10 parts of isocyanate curing agent, 3-6 parts of highly branched semi-crosslinked polyurethane prepolymer, 0.8-1.5 parts of dispersant, 0.2-0.5 parts of defoamer, 35-50 parts of methyl ethyl ketone (MEK), and 35-50 parts of pentamidine ketone (PHK). The highly branched semi-crosslinked polyurethane prepolymer has a molecular weight of 110,000-120,000 and a softening point temperature of 220-240°C. This application provides electroplated aluminum resistant to sulfur dioxide corrosion.

A composite separator for a lithium secondary battery according to one aspect of the present invention comprises an inorganic heat-resistant layer and an organic polymer adhesive layer sequentially provided on at least one surface of a porous organic polymer substrate, wherein organic binder polymer particles included in the organic polymer adhesive layer are a mixture of acrylic polymer particles and vinylidene fluoride-based polymer particles, the average particle diameter (D50) of the acrylic polymer particles is 2500nm or more larger than the average particle diameter (D50) of the vinylidene fluoride-based polymer particles, the average particle diameter (D50) of the acrylic polymer particles is 3000nm or more, the average particle diameter (D50) of the vinylidene fluoride-based polymer particles is 100nm to 500nm, and the weight ratio of the acrylic polymer particles to the vinylidene fluoride-based polymer particles is 3.5:6.5 to 4.5:5.5.

Compositions comprising starch-acrylic polymers combined with elemental iodine are disclosed. The SAP-I compositions release non-toxic amounts of iodophor iodine in a sustained, controlled manner. Methods of formation and use of the compositions along with methods of creation and use of devices incorporating the compositions in a variety of healthcare and non-healthcare settings are set forth in detail herein.

A release film includes a release layer and a substrate layer, the release layer includes two or more polymers, and satisfies at least one of the following (1) to (4). (1) The release layer has a plurality of different regions with different component ratios, and in a case in which Raman spectroscopy is performed on the different regions, at least a part of the different regions exhibits different peak intensities. (2) A surface of the release layer has a convex portion and a concave portion, and in a case in which Raman spectroscopy is performed on the convex portion and the concave portion, at least a part of the convex portion and at least a part of the concave portion exhibits different peak intensities. (3) A difference in SP value between at least two of the polymers is 0.3 or more. (4) At least one of the polymers is a nitrile group-containing (meth)acrylic polymer.

Disclosed are products having a coating applied to at least a portion thereof. The products can be vehicle products, home or office appliances, furniture or tooling, power industry products, consumer electronics, construction products, or products protected by an intumescent coating. The coating can be derived from a waterborne coating composition or a powder coating composition and can include an acrylic polyester resin obtainable by grafting an acrylic polymer with a polyester material obtainable by polymerizing a polyacid component with a polyol component comprising 2,2,4,4-tetraalkylcyclobutane-1,3-diol. Also disclosed are methods of application and uses.

This invention relates to a fluorosilicone-modified acrylic resin and its preparation method, belonging to the field of polymer materials technology. The resin uses methyl methacrylate, butyl acrylate, and hydroxyethyl methacrylate as basic monomers. Fluorine is introduced through copolymerization with tridecafluorooctyl acrylate. A self-made doped silicone modifier is introduced via blending. The doped silicone modifier is modified by the ring-opening and ring-closing reaction of epichlorohydrin with the secondary amine structure of hexamethylcyclotrisilazane, grafting branched active epoxy groups. Subsequently, n-decylamine is used to open the ring with the grafted epoxy groups, introducing terminal long-chain alkyl modification. This modifier exhibits good compatibility with the acrylic polymer chain and acts as a support in the resin, reducing the shrinkage stress after curing and improving the impact resistance of the cured film. Simultaneously, the reduction in micro-shrinkage results in a film with higher gloss and fullness.

This resin composition comprises a thermosetting resin and an acrylic polymer.

Direct emulsion comprising a UV filter, a lipophilic acrylic polymer, a fatty acid and polyol ester and an anionic carboxylic surfactant, of pH greater than or equal to 6. The present invention relates to a composition, in particular cosmetic or dermatological, in the form of an oil-in-water emulsion, comprising: - at least one UV filter; - at least one polymer comprising monomeric units of formulas (A) and (B): in which: R1, independently of each other, is selected from alkyl or alkenyl radicals, and at least 60% by weight of the R1 groups are radicals selected from stearyl and behenyl radicals, the percentage by weight relating to the sum of all the R1 groups present in the polymer, and the weight ratio of the sum of all the hydroxyethyl acrylate units to the sum of all the acrylate units bearing the R1 group ranges from 1:30 to 1:1;and the sum of the total units A and B is at least 95% by weight of the total weight of the polymer, the polymer having a number-average molecular weight Mn ranging from 2,000 to 9,000 g / mol; - at least one C12-C24 fatty acid ester and C2-C24 polyol ester; and - at least one anionic carboxylic surfactant or carboxylate selected from amino acids modified by at least one C8-C30 hydrocarbon chain and their salts; the pH of the composition being greater than or equal to 6.

An emulsion includes water, an emulsifier, and acrylic polymer particles dispersed in the water. The acrylic polymer particles include monomer units of an alkyl acrylate, alkyl methacrylate, or combination thereof, in which alkyl has at least eight carbon atoms; at least one percent by weight acid-functional monomer units, based on the total weight of the monomer units in the acrylic polymer particles; monomer units of a high T g monomer comprising at least one of t-octyl acrylamide, t-butyl methacrylate, t-butyl acrylate, isobornyl acrylate, or isobornyl methacrylate; and a chain terminal group having at least four carbon atoms and a thioether group. In some embodiments, the emulsion provides an adhesive able to hold a pinch bond in a foam cube within one minute of spraying the emulsion. A process for making the composition and a process for making a bonded article using the composition are also described.

A composition comprising a peroxygenated salt, a fatty substance, an acrylic polymer, and a direct dye. The invention relates to a composition for lightening keratin fibers, and in particular human keratin fibers such as hair, comprising one or more peroxygenated salts, one or more fatty substances present in a total content greater than or equal to 20% by weight relative to the total weight of the composition, one or more acrylic polymers, and one or more direct dyes. The invention also relates to a method for lightening keratin fibers, preferably human, particularly hair, comprising applying the composition to said keratin fibers.

A method of altering a refractive property of a crosslinked acrylic polymer material by irradiating the material with a high energy pulsed laser beam to change its refractive index. The method is used to alter the refractive property, and hence the optical power, of an implantable intraocular lens after implantation in the patient's eye. In some examples, the wavelength of the laser beam is in the far red and near IR range and the light is absorbed by the crosslinked acrylic polymer via two-photon absorption at high laser pulse energy. The method also includes designing laser beam scan patterns that compensate for effects of multiphone absorption such as a shift in the depth of the laser pulse absorption location, and compensate for effects caused by high laser pulse energy such as thermal lensing. The method can be used to form a Fresnel lens in the optical zone.

This resin composition contains a thermosetting resin and an acrylic polymer.

A secondary battery cell, a secondary battery, and an electric device. The secondary battery cell comprises a negative electrode sheet. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer, which is provided on at least one surface of the negative electrode current collector, wherein the negative electrode film layer comprises a negative electrode active material and a binder, with the negative electrode active material comprising a silicon-containing material, and the binder comprising a styrene-acrylic polymer. Based on the total mass of the negative electrode film layer, the mass fraction w1 of the binder satisfies: 3%≤w1≤10%, and the porosity p of the negative electrode sheet satisfies: 25%≤p≤50%.

The application discloses a phosphorus-containing acrylic dispersant in the application of lithium ion battery cathode material, the phosphorus-containing acrylic dispersant is a phosphorus-containing acrylic polymer, which is added into the cathode slurry of the lithium ion battery as an additive, so that the cathode sheet has intrinsic flame retardant performance. The cathode material system constructed by the phosphorus-containing acrylic dispersant realizes the following flame retardant mechanism in the cathode sheet through the chemical bond anchoring effect of the phosphorus element in the phosphorus-containing acrylic dispersant in the initial stage of thermal runaway: physical isolation: when the temperature is too high C, the phosphorus element in the phosphorus-containing acrylic dispersant decomposes to generate glassy Li3PO4, a dense coating is formed on the surface of the cathode active material particles, and the contact of the lattice oxygen release with the electrolyte is blocked through the dense coating; chemical capture: free radicals are released through decomposition, active groups generated by electrolyte decomposition are captured, and the combustion chain reaction is terminated.

The present invention provides a battery material composition capable of improving the output characteristics of a secondary battery, a polymer layer for a secondary battery, a separator for a secondary battery, an electrode for a secondary battery, and a secondary battery. [Solution] A battery material composition comprising (i) a fluorine-containing polymer (A) containing polymerization units based on vinylidene fluoride and polymerization units based on tetrafluoroethylene and an acrylic polymer (B), or (ii) a copolymer (C) containing polymerization units based on vinylidene fluoride, polymerization units based on tetrafluoroethylene and polymerization units based on acrylic monomer, or (iii) a copolymer (D) containing polymerization units based on vinylidene fluoride, polymerization units based on tetrafluoroethylene and polymerization units based on chlorotrifluoroethylene.

The present invention provides a coating composition that yields a cured coating film with excellent pot life, substrate adhesion, water resistance, solvent resistance, and chemical resistance, without the use of isocyanate-based curing agents. [Solution] A coating composition is used that contains an acrylic polymer (A), an aqueous medium (B), an acrylate compound (C), and a strong base catalyst (D), wherein the acrylic polymer (A) contains 5 to 50% by mass of a β-diketone group-containing monomer (a1), 5 to 30% by mass of a polyoxyethylene chain-containing monomer (a2), and 40 to 90% by mass of a monomer (a3) ​​other than monomers (a1) and (a2), which does not contain any of the functional groups hydroxyl, nitrile, and amide, and has a homopolymer glass transition temperature of 60°C or higher.

The application provides a binder and a preparation method thereof, a negative electrode sheet, a battery and an energy storage device, wherein the binder is a lignin graft modified acrylic polymer, monomers forming an acrylic polymer main chain include acrylate, acrylic acid, polyimide and methacrylonitrile; the mass percentage of lignin is 2% to 10% based on the total mass of the binder.

A sound damping additive comprises a core containing an acrylic polymer having a glass transition temperature T in the range of -60°C to less than 0°C, as calculated by the Fox equation. g The acrylic polymer in the core is not cross-linked. Formation of T-containing polymers on the core... g A shell of a polymer with a temperature greater than 50°C. A thermoplastic resin composition comprises the sound damping additive, filler, and thermoplastic resin, wherein the sound damping additive is present in an amount of 10% by weight or less relative to the total weight of the thermoplastic resin composition. Articles produced from the resin composition are also disclosed.

The present application relates to a kind of acrylic polymer emulsion, its raw material composition and its preparation method and application, belong to building coating technical field.It includes the following weight parts of raw materials: pre-emulsion I 15-25 parts, pre-emulsion II 45-55 parts, emulsifier solution 10-20 parts, initiator solution 1-10 parts, post-processing solution I 1-5 parts, post-processing solution II 1-5 parts, adipohydrazide 0.5-2 parts, triethanolamine 1-5 parts.The acrylic polymer emulsion prepared in the present application has strong cohesion, elongation and elasticity, the soft porcelain prepared using the emulsion is not easy to break or remain when demolding after curing, thereby effectively solving the adhesion problem of soft porcelain on silica gel mold, and the acrylic polymer emulsion prepared in the present application itself has low odor, significantly reduces the peculiar smell of soft porcelain finished product, improves environmental protection and use experience.

The application discloses a kind of silicon nitride ceramic slurry suitable for DLP light-cured 3D printing and preparation method thereof.The silicon nitride ceramic slurry includes the following components: silicon nitride powder, composite surface treatment agent, photosensitive resin and photoinitiator.The photosensitive resin is compounded by low carbon residue alicyclic resin and active diluent;The composite surface treatment agent is compounded by silane modified acrylic polymer and hydrophobic nano fumed silica.The application carries out surface treatment to silicon nitride powder by silane modified acrylic polymer and hydrophobic nano fumed silica, and finally obtains ceramic slurry with low viscosity and good storage stability under high solid content, which meets the requirements of DLP light-cured 3D printing layering and molding process.

This invention belongs to the field of release material technology, and relates to a release membrane for proton exchange membranes and its preparation method. The release membrane includes a base membrane and a release layer disposed on either side of the base membrane. The coating solution of the release layer comprises the following substances in parts by weight: 5-10 parts polyvinyl alcohol, 5-10 parts polyvinyl chloride, 5-20 parts water-based modified acrylic polymer A, 0.5-5 parts crosslinking agent, 0.5-5 parts wetting agent, and 40-84 parts deionized water. During the preparation of the proton exchange membrane, it exhibits excellent temperature resistance, chemical resistance, and acid and alkali resistance, while also possessing characteristics such as low release force, high residual rate, and low cost. Therefore, it can be widely used in the large-scale industrial production of proton exchange membranes.

The present invention provides a coating composition, a coated film, and a synthetic leather or a resin article having the coated film, the coating composition characterized by containing the following components: (A) a silicone acrylic copolymer resin which is a polymer containing (a1) an organopolysiloxane represented by a specific formula, and (a2) a mixture containing two or more acrylic monomers, the acrylic monomers of the (a2) component being adjusted so that the glass transition temperature (Tg) of the acrylic polymer obtained by polymerizing the (a2) component polymer is less than 60°C, as represented by Tg calculated from the glass transition temperatures (Tg) of the homopolymers of the respective acrylic monomers using the Fox equation, and (B) one or more organic solvents selected from a specific group. According to the present invention, when the coating composition is made into a coated film, excellent tactile sensation and gloss can be imparted, and even if the article having the coated film is stretched, whitening does not occur to impair the appearance.

The present invention relates to an acrylic multilayer foil comprising a layer A in which silica particles are uniformly distributed in an acrylic polymer matrix and a coating layer D. Due to adhesive promoting properties of the layer A comprising silica particles, the coating layer D can be advantageously applied onto the layer A. The foil has a high weathering resistance and excellent mechanical properties. Therefore, the foil of the present invention is highly suitable for surface-protection of materials such as polyvinyl chloride (PVC) and for use in high-pressure laminates (HPLs).

The present invention provides a composition for a separation membrane of an electrochemical element, a separation membrane containing the same, and an electrochemical element containing the same, which can improve electrode adhesion and adhesion to an olefin polymer porous support while minimizing the content of binder polymers, and at the same time exhibit low resistance and excellent electrolyte impregnation. A binder composition for a separation membrane of an electrochemical element according to one embodiment of the present invention comprises a polyvinyl alcohol-based compound, a binder resin, and an aqueous dispersant, wherein the polyvinyl alcohol-based compound is contained in an amount of 0.01 wt% to 1.5 wt% of 100 wt% of the total solid content in the binder composition, and the binder resin contains at least one particulate acrylic polymer resin.

This provides an adhesive sheet with reduced noise and excellent reliability at high temperatures. [Solution] The adhesive sheet 1 comprises an adhesive layer 10 containing an acrylic polymer. The acrylic polymer has constituent units derived from an alkyl (meth)acrylate (A) having an alkyl group having 4 to 12 carbon atoms, and constituent units derived from an alkyl (meth)acrylate (B) having an alkyl group having 13 to 25 carbon atoms. The mass ratio of the alkyl (meth)acrylate (A) to the alkyl (meth)acrylate (B) [(alkyl meth)acrylate (B) / (alkyl meth)acrylate (A)] is 0.7 to 1.5. The adhesive sheet 1 is used in optical components.

To provide an adhesive with excellent adhesion and vibration resistance in high-temperature environments. [Solution] The adhesive is an adhesive comprising a cured product of an adhesive composition containing a polymer component and a crosslinking agent, wherein the polymer component contains a (meth)acrylic polymer (P1) having a structural unit having a reactive group (R1) for forming a crosslinked structure with the crosslinking agent and having a weight-average molecular weight of 300,000 to 3,000,000, the crosslinking agent is an epoxy crosslinking agent, the gel fraction of the adhesive is 3% to 95% by mass, and in the differential molecular weight distribution curve of the sol component of the adhesive, the ratio of the peak area with a molecular weight of 560,000 or more to the peak area with a molecular weight of 10,000 to 30,000,000 is more than 40%.

Oral care compositions, particularly oral care mousse compositions, as well as oral care products thereof are disclosed herein. In accordance with one aspect, provided is an oral care product comprising: an oral care package comprising a vessel portion and a nozzle; and an oral care composition disposed in the vessel portion, the oral care composition comprising: from about 10 to about 43 wt.% of an abrasive; a surfactant system comprising: an amphoteric surfactant, and a nonionic surfactant; and a thickening system comprising: a natural gum, and an acrylic acid polymer, wherein the oral care composition has a stress drop of about 18 to about 60% and an adhesive force of about 60 to about 200 gram-force, and wherein all weight percentages are based on the total weight of the oral care composition.

The invention relates to a polishing slurry composition, and more specifically, relates to a polishing slurry composition that has excellent thermal stability, dispersion stability, stability over time, and polishing efficiency compared to conventional polishing slurry compositions, and can minimize scratches on the surface to be polished. The polishing slurry composition of the present invention has excellent thermal stability, dispersion stability, stability over time, and polishing efficiency, so it can be widely used in fields such as abrasives for semiconductor wafer processing, biomedical, pharmaceutical, cosmetics, and catalysts.