2825 results about "Methacrylate methyl" patented technology

The present invention features a tablet including particles containing a pharmaceutically active agent, wherein the particles are coated with (a) a first film layer containing a modified release polymer; and (b) a second film layer containing (i) a first polymer, wherein the first polymer is a polymer of ethyl acrylate and methyl methacrylate and (ii) a second polymer, wherein the second polymer is a polymer of methyl acrylate, methyl methacrylate and methacrylic acid.

The invention relates to a waterproof structure and a manufacturing method thereof. The waterproof structure is used for waterproofing of detail joints on roofing and comprises a waterproof coiled material layer and a waterproof coating layer which is arranged on the position of the detail joints and is overlapped and struck with the waterproof coiled material layer, wherein the inside of the waterproof coating layer can comprise a reinforcing layer made of polyester or nylon non-woven fabrics or textile fabrics; and the material of the waterproof coating layer is exposed polyurea waterproof paint or modified waterproof paint thereof, exposed polyurethane waterproof paint or modified waterproof paint thereof, exposed polymethyl methacrylate waterproof paint or modified waterproof paint thereof or exposed polystyrene-ethylene-butadiene-styrene or modified waterproof paint thereof. Because the waterproof coating layer of the waterproof structure has large bonding force, strong capability to resist stretching and high elasticity, when the detail joints on the roofing are deformed because of gusty condition or other reasons, the waterproof coating layer is not destroyed and still has excellent waterproof effect.

A system is disclosed for printing, activating and applying a flow of linerless activatable labels to a flow of items to be labeled. An activatable adhesive is formulated to readily absorb energy from a given radiation source, an activatable adhesive linerless label incorporates such the activatable adhesive. Related methods and uses are described. The activatable adhesive includes a plasticizer, a tackifier, and an adhesive base polymer that includes butyl acrylate, styrene, methyl methacrylate, methacrylic acid, and acrylic acid.

The invention discloses aqueous acrylic acid-modified alkyd resin and a preparation method thereof. Basic alkyd resin of the aqueous acrylic acid-modified alkyd resin is prepared from an unsaturated fatty acid, benzoic acid, trimethylolpropane, pentaerythritol, maleic anhydride, isophthalic acid, ethylene glycol monobutyl ether and butanol. The aqueous acrylic acid-modified alkyd resin is prepared by adding styrene, methyl methacrylate, butyl acrylate, acrylic acid, a silane coupling agent, benzoyl peroxide, tert-butyl hydroperoxide, ethylene glycol monobutyl ether and a mixing neutralizer into the basic alkyd resin. According to the aqueous acrylic acid-modified alkyd resin and the preparation method thereof, the advantages of alkyd resin and acrylic resin are integrated, and a product has high gloss retention, color retention and weather resistance; a production process is simple, the raw materials are readily available, and the production cost is low; a paint production process is simple, water is used as a diluting agent, and safety and convenience in construction are ensured.

A thermoplastic resin composition comprising a polylactic acid polymer (A), an acrylic polymer (B) containing units of methyl methacrylate monomer, and a graft copolymer (C) obtained by graft-polymerizing a vinyl monomer onto a rubbery polymer, wherein the refractive index, Rc, of the graft copolymer (C) and the total refractive index, Rab, of the polylactic acid polymer (A) and the acrylic polymer (B) satisfy the following formula (1)−0.004≦Rc−Rab≦+0.008  (1).

Provided is particulate of a cathode active material for a lithium battery, comprising one or a plurality of cathode active material particles being embraced or encapsulated by a thin layer of a high-elasticity polymer having a recoverable tensile strain no less than 5%, a lithium ion conductivity no less than 10−6 S / cm at room temperature, and a thickness from 0.5 nm to 10 μm, wherein the polymer contains an ultrahigh molecular weight (UHMW) polymer having a molecular weight from 0.5×106 to 9×106 grams / mole. The UHMW polymer is preferably selected from polyacrylonitrile, polyethylene oxide, polypropylene oxide, polyethylene glycol, polyvinyl alcohol, polyacrylamide, poly(methyl methacrylate), poly(methyl ether acrylate), a copolymer thereof, a sulfonated derivative thereof, a chemical derivative thereof, or a combination thereof.

The invention relates to a mixed gel consisting of polymethyl methacrylate and cross bonding hyaluronic acid, which is applied to injection, and a preparation method thereof; the mixed gel of the invention is characterized in that polymethyl methacrylate microballoon, cross bonding hyaluronic acid gel particles and hyaluronic acid or salting liquid thereof form the mixed gel, wherein, the polymethyl methacrylate microballoon accounts for 0.5-30% in terms of volume, volume ratio of the cross bonding hyaluronic acid gel particles and hyaluronic acid or salting liquid thereof ranges from 1:19 to19:1. The method for preparing the mixed gel comprises respectively preparing the polymethyl methacrylate microballoon and cross bonding hyaluronic acid gel particles, then evenly mixing the microballoon and the gel particles with hyaluronic acid or salt thereof dissolved in isosmotic solution, the sterilizing and packaging the mixture to obtain the finished product. The mixed gel of the invention can be used to prepare injection applied to beauty care and medical treatment and is a highly effective and lasting moulding material, which has the advantages of less side-effect and low incidence rate of anaphylactic reaction.

The present invention provides a curable composition comprising:(a) a resin composition being liquid at 23° C. and comprising monomers or oligomers or a mixture of monomers and oligomers polymerizable by a ring-opening reaction;(b) an impact modifier containing one or more block copolymers having at least one block composed of methyl methacrylate and(c) one or more polymerization initiators.The curable resin composition can be used for curable coatings per se and in specific for stereolithography and other applications such as three dimensional printing applications where a 3D object is formed.

The invention discloses PE (polyurethane) protective film glue and a preparation method thereof. The PE protective film glue consists of the following components in parts by weight: monomers: 20-60 parts of butyl acrylate, 25-45 parts of methyl methacrylate, 12-32 parts of methyl acrylate, 5-15 parts of acrylic acid, 10-24 parts of hydroxyethyl acrylate, 120-140 parts of enthyl hexyl acrylate; emulsifying agents: 0.5-1.5 parts of polyoxyethylene octyl phenyl ether, 0.5-1.5 parts of sodium dodecyl sulphate, 0.5-1.5 parts of sodium dodecyl benzene sulfonate; a solvent: 280-350 parts of deionized water; and an initiating agent: 0.6-1.5 parts of ammonium persulfate. The PE protective film glue provided by the invention is the water-based adhesive and has the advantages of environment friendliness, no pollution, strong adhesive force and adhesive strength, and short drying time. A PE protective film coated with the PE protective film glue provided by the invention can be used for a vehicleprotective film, the protective films of all home appliances and so on. The effects of non-degumming and no residue glue can be realized.

The invention discloses a biodegradable free-spraying aesthetic resin and a preparation method thereof, and the composite raw materials comprises the following components by weight: 10-80 parts of polylactic acid resin, 20-70 parts of polymethyl methacrylate, 0-30 parts of impact modifiers, 0.1-0.8 parts of antioxidants, 0.1-2.0 parts of lubricants, 0-3.0 parts of metal pigments, and 0-3.0 parts of pearlescent pigments. The raw materials are dried in an oven at 60 DEG C for 5-8 hours; then metal pigments or pearlescent pigments treated by a coupling agent are added proportionally; the mixtureis premixed by a high-speed mixer, is processed by melt extrusion through a twin-screw extruder, and is cooled and granulated. Not only the obtained product has good metallic luster effect, but also its injection product has excellent mechanical properties and thermal properties, has beautiful appearance and no flowing marks, is biodegradable, is applicable to the manufacture of appearance parts of household appliance and office products which has high requirements on appearance.

The invention discloses a large-size micro-prism type reflecting material die and a preparation method thereof. The method comprises a die substrate and a metallic film plated on the die substrate; compactly and equably distributed concave prism array structures are compacted on the front face of the die substrate; the metallic film plated on the die substrate is copper metallic film and nickel metallic film in sequence; the die substrate is made of polycarbonate, polymethyl methacrylate or polyimide. The invention further discloses a preparation method of the large-size micro-prism type reflecting material die; the combined technology of precise mechanical process and electro-forming technique are used so that the manufacturing cost is reduced. The large-size micro-prism type reflecting material die provided by the invention can use general cheap PVC material to manufacture large-size micro-prism type reflecting material and product in one step; therefore the difficulty of the production flow and the production cost of the reflecting material and product are reduced.

The invention discloses a nano-level formaldehyde-free paint dye printing adhesive and the preparing method and application thereof. And it comprises N-epoxy propyl acrylamide cross-linking monomer, butyl acrylate, isooctyl acrylate, ethyl acrylate, methyl methacrylate, styrene, vinyl acetic acid, crylic acid, methacrylic acid, reactive surface active agent, unsaturated strongly hydrophilic monomer, vinyl- containing organosilicon monomer, etc. and its grain size can reach nano level and it does not comprise formaldehyde. And it can be used for paint printing and for paint dyeing, as well as for other fields, such as building field.

The invention discloses a method for transferring graphene on a metal foil substrate. The method is characterized by comprising the following steps of: rotatably coating a protective colloid on the surface of the graphene to form a protective colloid layer on the surface of the graphene, wherein the protective colloid is a mixed solution of a photoresist and a polymethyl methacrylate solution; placing the graphene with the protective colloid layer on the surface into a metal foil etching solution, and forming a composite layer of a graphene / protective colloid layer after the metal foil is completely etched; taking out the composite layer of the graphene / protective colloid layer, placing the composite layer into deionized water to be soaked and cleaned, then, transferring the composite layer on a target substrate, next, centrifuging the target substrate on centrifuging equipment, immersing the target substrate into an acetone solvent after the centrifuging operation is ended, and etching the protective colloid layer. The protective colloid used in the method is simple in preparation and easy to remove, so that no protective colloid is remained on the graphene; the liquid remained on the surface of the graphene and between the graphene and the target substrate after being transferred on the target substrate is effectively removed in a centrifuging way.

An acrylic pressure-sensitive adhesive composition according to the present invention comprises: acrylic copolymer (A) formed by copolymerizing i) alkyl (meth) acrylic acid ester monomer wherein the carbon atom of alkyl group is 2 to 14, ii) monomer having a functional group capable of crosslinking, iii) methyl (meth)acrylate monomer, iv) vinyl acetate monomer, v) glycidyl (meth)acrylate, and vi) crosslinking agent having 5 to 15 of alkyleneoxide groups and at least two acrylate group or vinyl group; and flame retardant (B). The acrylic pressure-sensitive adhesive composition improves the adhesive property and the dispersion of the flame retardant by controlling the crosslinking structure of the acrylic copolymer, such that a surface finishing material comprising the same can have the excellent adhesion and fireproof.

The invention discloses leadless radiation-proof organic glass and a preparation method of the leadless radiation-proof organic glass, wherein the organic glass is obtained by the steps of dissolving organic rare-earth salt into octanoic acid and propylene glycol, and then performing copolymerization with methyl methacrylate and a plasticizer under the action of an initiator. The organic glass prepared by the method not only keeps good light transmission, but also effectively reduces radiation and avoids lead pollution.

The invention discloses an amphiphilic triblock copolymer with a structural general formula represented as the following. In the formula, when M1 is vinylpyrrolidone and M2 is acrylic acid, M3 is styrene or acrylonitrile or methyl methacrylate; or when M1 is vinylpyrrolidone and M2 is a chemical bond, M3 is styrene or acrylonitrile. m, n, p, q, are all lager than 1. A number-average molecular weight of the copolymer is 30000 to 100000, a glass-transition temperature of the copolymer is 90-180 DEG C, and a decomposition temperature of the copolymer is 180-430 DEG C. The invention also discloses a preparation method of the copolymer, and a polyethersulfone hollow fiber membrane blend-modified by using the amphiphilic triblock copolymer. The amphiphilic triblock copolymer provided by the invention is insoluble in water. When the amphiphilic triblock copolymer is blended with polyethersulfone and is prepared into a polyethersulfone hollow fiber membrane, the amphiphilic triblock copolymeris hard to precipitate. Therefore, the polyethersulfone hollow fiber membrane is provided with permanent hydrophilicity, protein pollution resistance and excellent blood compatibility. The polyethersulfone hollow fiber membrane can be used in the field of blood purification. The preparation method provided by the invention is simple, and is easy to operate. With the method, industrialization is easy to realize.

The invention discloses a dust preventing agent, which includes components of water or deionized water, acrylic acid, methacrylate, acrylamide and initiator, wherein proportion of each component is: 90-120 quotient of water or deionized water; 7-12 quotient of acrylic acid or 2-4 quotient of methyl methacrylate, ethyl methacrylate or propyl methacrylate; 2-4 quotient of acrylamide; 0.05-0.1 quotient of persulfate initiator; 0.03-0.05 quotient of crosslinking agent and 5-10 quotient of neutralizer which are also added. The dust preventing agent is thick liquid and is used after diluting, when being sprayed, the dust preventing agent can adsorb dust in air and combine with granule on ground surface to form film structure, and the dust preventing agent also possesses water-absorbing quality and water-retention property to prevent dust flying and clean air.

The invention relates to a preparation method and an application of water-soluble fluorine-containing acrylic resin. The water-soluble fluorine-containing acrylic resin is obtained by copolymerizing an acrylic monomer, a fluorine-containing monomer and a functional monomer in a free radical manner; the use amounts of the reacted monomers are as follows in parts by weight: 15-25 parts of methyl methacrylate, 5-15 parts of butyl acrylate, 10-20 parts of fluorine-containing acrylic monomer, 3-5 parts of methacrylic acid, 3-5 parts of hydroxyethyl acrylate, 0.4-0.8 part of a chain transfer agent, 0.3-0.7 part of an initiator, 4-12 parts of amines neutralizing agent and 50 parts of an organic solvent. The resin is matched with aqueous amino resin and is diluted by water before being used; and the water-soluble fluorine-containing acrylic resin is mainly applied to coating a building metal sectional material and a large part of volatile matters is water when the resin is used, so that the water-soluble fluorine-containing acrylic resin is an environment-friendly product.

The invention provides a preparation method of modified superfine calcium carbonate powder. The preparation method comprises following steps: raw material mixing, slurry preparation, wet grinding, drying collection, depolymerization scattering and modified treatment, wherein a dispersing agent at least comprises ammonium polyacrylate salt, sodium hexametaphosphate and sodium polyacrylate salt; a modifying agent comprises one or more of octadecylamine, polymethyl methacrylate, a titanate coupling agent and a silane coupling agent; and a hyperdispersant comprises one or more of a polyester type hyperdispersant, a polyether type hyperdispersant, a polyacrylate hyperdispersant and a polyolefin hyperdispersant. By virtue of the preparation method, the dispersity of the powder can be improved, the dry-wet cover effects of building coatings can be improved, and the addition amount of titanium dioxide can be reduced.

The invention discloses a phase change micro-capsule for clothing thermoregulation as well as a preparation method and application thereof. The phase change micro-capsule for clothing thermoregulation comprises a core material and a wall material, wherein the core material is a mixture of n-octadecane and n-hexadecane, and the molar ratio between n-octadecane and n-hexadecane is (3 : 1)-(24 : 1); the wall material is methyl methacrylate; the phase change micro-capsule is applied to preparation of a clothing thermoregulation material. The phase change micro-capsule is stable in performance, non-toxic, non-corrosive and low in cost, can not cause super-cooling and super-heating phenomenon in use, has a melting and solidification temperature range just in the temperature range in which a human body can feel comfortable, is uniform in particle size distribution and appropriate in melting heat and solidification heat, meets the flexibility of finished fabrics in a later period, has a relatively large heat storage effect, and is suitable for performing thermoregulation on clothing.

The continuous carbon fiber reinforced composite material for bone repair is prepared with continuous carbon fiber, continuous carbon fiber felt or continuous carbon fiber, cloth through soaking in methyl methacrylate monomer or pre-polymer and subsequent extruding or bulk molding. The composite material of the present invention includes methyl methacrylate and carbon fiber, and the carbon fiber content is 20-80 wt%. The composite material may be used as the external fracture fixing material, internal fracture fixing material and bone repairing material. The composite material has the features of light weight, no interference on NMR examination and excellent biocompatibility. It may be implanted inside life body without negative effect on tissue, blood, etc.

The invention discloses an acrylate copolymer emulsion, and belongs to the technical field of aqueous coatings. The acrylate copolymer emulsion comprises, by weight, 450-550 parts of deionized water, 1-2 parts of an anionic surfactant, 5-8 parts of a reactive emulsifier, 3-15 parts of hydroxypropyl acrylate, 50-160 parts of methyl methacrylate, 20-75 parts of butyl acrylate, 200-410 parts of styrene, 5-10 parts of methacrylic acid, 3-10 parts of an adhesion function monomer, 2-9 parts of a cross-linking monomer, 3-10 parts of a cross-linking agent, 0.1-3 parts of an antifoaming agent, 0.8-2 parts of an initiator, 3-5 parts of ammonia water, 0.8-2 parts of an antiseptic, 0.1-1 part of tert-butyl hydroperoxide and 0.1-0.8 parts of sodium bisulfate. The invention also discloses an aqueous industrial anticorrosive coating adopting the acrylate copolymer emulsion as a film forming substance. The coating has the advantages of high adhesion to a substrate, high water resistance and high salt spray resistance.

The invention belongs to the technical field of cosmetics, and in particular relates to an anti-wrinkle face cream and a preparation method thereof. The anti-wrinkle face cream comprises butanediol, ethylhexyl palmitate, caprylic / capric triglyceride, glycerol, polyglycerol-10, ethylhexyl isononanoate, polymethyl methacrylate, polydimethylsiloxane, ceteareth-21, cetostearyl alcohol, ceteareth-2, acrylic acid (ester) type / acrylamide copolymer, betaine, avocado fruit butter, a lactic acid bacillus / balausta fermentation product extract, an arctic rock chlamydomonas essence, a starfish essence, a ginseng extract, a lucid ganoderma extract, an apple extract, tocopheryl acetate and the like. The anti-wrinkle face cream provided by the invention is good in penetrability and easy to absorb, can effectively replenish water and preserve moisture, and can repair skin wrinkles and inhibit generation of the winkles, thereby delaying skin aging.

The invention relates to an anti-water-blocking agent for drilling fluid and a preparation method thereof. The anti-water-blocking agent is a polymer containing a butyl acrylate (BA) monomer, a methyl methacrylate (MMA) monomer, a methacrylic acid (MAA) monomer, an acrylamide (AM) monomer and a 2-(perfluorohexyl)ethyl methacrylate (G06B) monomer, wherein the mol percent of a is 35.8-36.5%, the mol percent of b is 27.0-30.5%, the mol percent of c is 7.5-9.0% and the mol percent of d is 7.5-9.0%. According to the invention, the anti-water-blocking agent effectively reduces filtrate surface tension and oil-water interfacial tension, improves gas-phase relative permeability, has a good invading fluid draining effect and is beneficial to driving away resident fluid in near wellbore formations in a draining manner so as to better relieve the water blocking effect. The preparation method of the anti-water-blocking agent is safe and economic and has a high conversion rate; and a batch feeding method is used, so that the requirements for low dosage and high performance are met.

The invention discloses abrasion-resistant paint and a preparation method thereof. The paint comprises a first component and a second component, wherein the first component is double-component composition formed by mixing of a component A and a component B in a ratio of 1:1, the component A in the first component comprises components as follows: E-20 epoxy resin, silicon carbide micro powder, carbon monofluoride and a coupling agent; the component B in the first component comprises components as follows: methyl methacrylate, butyl acrylate, aluminum isopropoxide, triethoxy vinyl silane and 20-25 parts of a solvent; the second component comprises components as follows: a curing agent, an antifoaming agent, a leveling agent and a solvent. The components A and B in the first component are prepared separately and then mixed, and finally, the first and second components are cured to obtain the abrasion-resistant paint.

The invention discloses a catalyst for synthesis of methyl methacrylate by formaldehyde and methyl propionate and a preparation method of the catalyst. The catalyst mainly comprises a main active component, an activated auxiliary and a carrier, wherein the main active component is Cs, the activated auxiliary is selected from one or more of Sb, Nb and Ag, and the carrier is a nanometer SiO2 / Al2O3-ZrO2 composite carrier; and metered by oxides and according to mass percentage, the main active component Cs accounts for 5%-20%, the activated auxiliary accounts for 1%-5%, and the balance is the carrier. Simultaneously, the invention discloses a preparation method of the catalyst. The catalyst provided by the invention is good in activity, selectivity and stability, simple in manufacture technology, suitable for large-scale industrialized application and environment-friendly.

The invention relates to a kind of absorption transparent coating for visible and infrared light as well as its preparation and application. The coatings is prepared as follow: Firstly, it mixes alpha-methyl acrylate, methyl methacrylate, azobisisobutyronitrile, tributyl phosphate according to the ratio of 1-2:10-12:1-1.5:2-4, then it prepolymerizes them in water to a viscosity of 100 ~ 500cP to achieve the bonding agent of the infrared absorption coating. Secondly, it takes out 40%~60% of the above bonding agent and adds the nano-particles of TiO2, Fe3O4, MnO2, CuO, CdTe, PbS and / or Cr2O3 to achieve an organic near infrared absorber, then it mixes the organic near infrared absorber and the remaining bonding agent to achieve the visible infrared absorption transparent coating.

The invention relates to organic montmorillonite / acrylic acid size and a preparation method thereof. The size comprises the following raw materials by weight: 2 to 5 portions of organic montmorillonite, 10 to 13 portions of acrylic acid, 35 to 37 portions of ethyl acrylate, 12 to 15 portions of butyl acrylate, 5 to 8 portions of methyl methacrylate, 180 to 220 portions of deionized water, 0.5 to 0.8 portion of initiator, and 2.5 to 3.5 portions of composite emulsifying agent. The preparation method for the size comprises the following steps: preparation of the organic montmorillonite, pretreatment of the raw materials, synthesis of the organic montmorillonite / acrylic acid size, and insulating and cooling processes. The size has the advantages of good sizing performance, convenience for size mixing and small viscosity fluctuation rate, and can reduce or fully replace PVA; and the preparation method has the advantages of simple process, low cost and environmental friendliness, is applicable to industrialized production, and is applicable to sizing for high-grade high-density cotton yarns and high-grade high-density trueran yarn.

The invention discloses an anti-flaming antisepsis leather coating which is composed of, by weight, 2-3 parts of hydrous zinc borate, 1-1.5 parts of linoleic acid calcium soap, 0.1-0.2 part of triterpenoid saponin, 0.7-1 part of calcium naphthenate, 1.7-2 parts of polyvinylpyrrolidone, 0.8-1 part of polyacrylamide, 1.6-2 parts of stannous chloride, 0.1-0.13 part of triethanolamine, 190-200 parts of methyl methacrylate, 3-4 parts of lauryl sodium sulfate, 0.1-0.2 part of urotropine, 0.2-0.3 part of ammonium persulfate, 6-7 parts of a 20%-25% formaldehyde solution, 16-20 parts of zinc acetate, 4-7 parts of silver nitrate, 1-2 part of decabromodiphenyl ether and 0.4-1 part of sodium lauryl sulfate. The anti-flaming antisepsis leather coating has a good antibacterial property and excellent moisture permeability and water resistance. Leather coated with the obtained emulsion is good in antibacterial property and excellent in hygiene property.

The invention relates to polyacrylate. Polyacrylate is synthesized from raw materials in percentage by mass as follows: 10%-30% of a hard monomer, 15%-40% of a soft monomer, 1%-5% of a functional monomer, 0.5%-2% of a special monomer and 40%-50% of a solvent, wherein the hard monomer comprises one or more of methyl acrylate, methyl methacrylate, vinyl acetate, acrylonitrile and isobornyl methacrylate; the soft monomer comprises one or more of ethyl acrylate, n-butyl acrylate, 2-ethylhexyl acrylate and n-propyl acrylate; the functional monomer comprises one or more of hydroxyethyl acrylate, acrylic acid, methacrylic acid, hydroxypropyl acrylate and 2-hydroxyethyl methacrylate; the special monomer comprises one or more of methacrylamido ethyl ethylene urea, hydroxyethyl methacrylate phosphate and glycidyl methacrylate. A pressure-sensitive adhesive has good high-temperature-resistant adhesive property, does no squeeze out, has no residue, has low cost and can be applied to masking tapesused in capacitor taping in the electronics industry as well as certain high-temperature-resistant adhesive tapes.