138 results about "Methacrylic monomers" patented technology

A photocurable composition, contains a (meth)acrylic monomer component, and photopolymerization initiator, in a case in which a rectangular sheet-like test piece A1 with a length of 40 mm, a width of 10 mm, and a thickness of 1.0 mm is produced by photomodeling under conditions in which the photocurable composition is irradiated with visible light having a wavelength of 405 nm at an irradiation dose of 11 mJ / cm2 to form a cured layer A1 with a thickness of 50 μm, the cured layer A1 is stacked in a thickness direction thereof to form a rectangular sheet-like modeling product A1 with a length of 40 mm, a width of 10 mm, and a thickness of 1.0 mm, and the modeling product A1 is irradiated with ultraviolet rays having a wavelength of 365 nm at an irradiation dose of 3 J / cm2 to produce the test piece A1.

A binder for rechargeable lithium batteries and a rechargeable lithium battery including the binder are disclosed. The binder for rechargeable lithium batteries includes a unit derived from a (meth)acrylic monomer containing a carboxylic acid group or a carboxylic acid metal salt as a first monomer; a unit derived from a (meth)acrylic monomer containing an amide group or a nitrile group as a second monomer; and a unit derived from a Zwitterionic vinyl or (meth)acrylic monomer as a third monomer.

An electrophotographic photosensitive member includes a surface layer containing a binder resin and an inorganic particle. A value of a ratio of a volume of the inorganic particle to a volume of the binder resin in the surface layer is 1.0 or more and 4.0 or less. The binder resin is a polymerization product of a composition containing a polymerizable monomer having a polymerizable functional group. The composition contains a (meth)acrylic monomer having 6 or more polymerizable functional groups. The (meth)acrylic monomer has a molecular weight of 540 or more and 1,300 or less. A content of the (meth)acrylic monomer in the composition is 40 mol % or more with respect to a total molar number of the polymerizable monomer in the composition. A surface of the surface layer has an arithmetic average roughness Rz of 150 nm or more and 400 nm or less.

The invention discloses a bismuth oxymethacrylic acid hybrid nanocluster with a bamboo joint-like structure as well as a preparation method and application of the bismuth oxymethacrylic acid hybrid nanocluster. The preparation method comprises the following steps: S1, dissolving a bismuth-containing compound in an organic solvent at a certain temperature to form a bismuth-containing organic solution; s2, adding sodium methacrylate into the bismuth-containing organic solution, and reacting for a period of time at a certain temperature; and collecting a reaction product to obtain the bismuth oxide organic hybrid nanocluster with the bamboo-joint-like structure. According to the preparation method provided by the invention, the problems that an inorganic-organic hybrid material is difficult to prepare and an assembly structure is difficult to control at present are solved, and the construction of the methacrylic acid monomer compounded bismuth oxide cluster is realized by a one-step method. According to the invention, the bismuth oxymethacrylic acid hybrid nanocluster with a bamboo-like structure is reported for the first time, the regulation and control mode of the nanostructure is researched in mechanism, meanwhile, a potential nano preparation is provided for treatment of bladder cancer, and the bismuth oxymethacrylic acid hybrid nanocluster has extremely high nano material construction and clinical diagnosis and treatment benefits.

A photocurable composition includes a (meth)acrylic monomer component and a photopolymerization initiator, wherein an adhesive force of a cured product is less than or equal to 1.5 N, and a rupture elongation of the cured product is greater than or equal to 20%.

To provide a moisture absorption film laminate which is photocurable with ultraviolet light to be cured in a short time, and has both excellent antifogging properties and excellent abrasion resistance.SOLUTION: A moisture absorption film laminate has a moisture absorption film formed on the surface of a base material, the moisture absorption film being formed by curing a photocurable resin composition which contains a siloxane resin (A) having a (meth)acryloyl group, three kinds of specific (meth)acrylic monomers (B), (C) and (C), and a photoinitiator, as essential components, where a blending ratio of (A):(B):(C):(D) is 0.1 to 5:35 to 55:0.5 to 10:40 to 60, the (B) is a bifunctional monomer having a hydroxyl group, the (C) is a monofunctional monomer having an ethylene glycol chain, and the (D) is a monofunctional monomer having a hydroxyl group.SELECTED DRAWING: None

To achieve an anaerobic adhesive composition capable of suppressing occurrence of coating failure during coating. The anaerobic adhesive composition of the present invention includes a (meth)acrylic monomer, an organic peroxide, a curing accelerator, and an isoparaffin wax.

The subject of this disclosure is to provide an electrophotographic photosensitive material and an electrophotographic image forming apparatus that provide sufficient image quality and durability even in positively charged image forming apparatuses. The electrophotographic photosensitive material is used in an image forming apparatus having positively charged units. The electrophotographic photosensitive material has a photosensitive layer and a protective layer. The protective layer is a cured film containing metal oxide particles and formed from a polymeric compound, and the volume resistivity of the protective layer is 10⁻⁶. ９ ~10 15 Within the range of Ω·cm, the above-mentioned polymeric compound is any one of acrylic monomers or methacrylic monomers or a mixture thereof, and the hydroxyl value of the above-mentioned polymeric compound is in the range of 10 to 200 mg KOH / g.

A separator for a rechargeable lithium battery includes a porous substrate and a coating layer on at least one surface of the porous substrate. The coating layer includes a binder, the binder including a copolymer, the copolymer including: a first structural unit including a unit derived from an aromatic unsaturated monomer; a second structural unit derived from a (meth) acrylic monomer containing an alkyl group having 4 or more carbon atoms in the main chain of the ester moiety; and the third structural unit is derived from a sulfonic acid group-containing monomer. The first structural unit is included in an amount in a range of about 5 mol% to about 80 mol%, the second structural unit is included in an amount in a range of about 10 mol% to about 40 mol%, and the third structural unit is included in an amount in a range of about 5 mol% to about 80 mol%, based on 100 mol% of the copolymer.

5 to 35% by weight of a structural monomer unit of a (meth)acrylic acid monomer, 35 to 65% by weight of a structural monomer unit of a C 1-8 alkyl (meth)acrylate monomer, and more than 10 to 30% by weight of a structure (II): [Chemical Formula 1] JPEG2026521909000033.jpg28170 (wherein R 1 is selected from linear saturated C 12-26 alkyl groups, R 2 is selected from hydrogen and methyl groups, and n is 10 to 30) of a structural monomer unit of a special associative monomer, 0.01 to 2% by weight of a structural unit of a polyvalent ethylenically unsaturated monomer, and [[ID=1~5]] a gradient polymer containing <0.05% by weight of a structural monomer unit of a sulfonated monomer and <0.02% by weight of a structure (II):[[ID=[]] 【化2】 [[ID=[]]JPEG2026521909000034.jpg36170 (wherein each R 3 is selected from -H and -CH3, R 4 / / 这里的“R 4 は、-H及び-C 1-4 アルキル基から選択され”,推测原文可能有误,这里按推测修正为“is selected from -H and -C<000000]]alkyl groups”is selected from -H and -C 1-4 alkyl groups, R 5 is selected from -C 1-4 alkyl groups, a is 0 to 50, b is 0 to 20, c is 0 to 50, a + c is 1 to 100, and d is 1 to 4) of a monomer having a structural unit, and a gradient polymer having a gradient polymer form is provided.

A pressure-sensitive adhesive includes a polyoxyalkylene polymer having no fluorinated carbon atoms and an acrylic copolymer. The acrylic copolymer includes at least 60 weight percent of linear or branched alkyl (meth)acrylate monomer units, based on the weight of the acrylic copolymer, and from 12.5 weight percent to 40 weight percent of (meth)acrylic acid monomer units, based on the weight of the acrylic copolymer. An article includes the pressure-sensitive adhesive disposed on a backing. The article can be water vapor permeable. A process for making the pressure-sensitive adhesive is also disclosed.

A nanocomposite includes at least one polymer and metal oxide nanoparticles dispersed in the at least one polymer. Each polymer can have a number average molecular weight of at least 10000 grams / mole. The at least one polymer includes a first polymer including (meth)acrylic acid monomer units. The metal oxide nanoparticles are surface modified with a carboxylic acid silane surface modifying agent. An aqueous dispersion that can be used to make the nanocomposite and a method of making the nanocomposite is described.

The present invention relates to a separator for an electrochemical device, the separator comprising a coating layer that includes, as a binder, a copolymer comprising i) repeating units derived from a (meth)acrylic acid monomer, a (meth)acrylic acid salt monomer, or both monomers, ii) a repeating unit derived from an acrylic monomer having an amide group, and iii) repeating units derived from a silane-based monomer, a monomer having a silanol group, or both monomers, wherein the copolymer may exhibit excellent adhesion to inorganic particles due to including, in particular, iii) the repeating units derived from the silane-based monomer, the monomer having a silanol group, or both monomers, and thus the separator for an electrochemical device and including the binder exhibits excellent adhesion to an electrode and has a low thermal shrinkage ratio.

To provide a radically polymerizable polymer capable of yielding a photosensitive resin composition with low viscosity and superior temporal stability even when fine particles with small diameters are incorporated into the photosensitive resin composition.SOLUTION: A radically polymerizable polymer according to the present invention is a radically polymerizable polymer including a structural unit derived from an unsaturated monomer having an acid group and a structural unit having a cyclic structure in the main chain, including a polymerizable double bond in a side chain, and exhibiting a weight average molecular weight of 18000 or less, and satisfies either: that a proportion of a structural unit derived from an acrylic monomer is 30 to 90 mol% based on 100 mol% of all structural units constituting the main chain of the radically polymerizable polymer; or a molar ratio of the structural unit derived from an acrylic monomer to the structural unit derived from a methacrylic monomer (acrylic monomer-derived structural unit / methacrylic monomer-derived structural unit) in all structural units constituting the main chain of the radically polymerizable polymer is from 0.5 to 10.5.SELECTED DRAWING: None

Provided are an adhesive film, an optical member comprising same, and an optical display device comprising same, the adhesive film comprising a cured product of a composition for an adhesive film including a polymer of (meth)acrylic-based monomer mixtures. The adhesive film has a peel strength of 400 gf / 25 mm or more with respect to a polyethylene terephthalate film having an antistatic layer, which is measured after a specimen in which the adhesive film is laminated on the polyethylene terephthalate film having the antistatic layer is left at 60 ℃ and 93% relative humidity for 500 hours. The adhesive film has a storage modulus of 10 to 100 kPa at 25 ℃. The adhesive film has a resistance change rate of 1% or less according to Equation 1.

The invention relates to a protective film and an adhesive composition. The adhesive composition comprises an acrylic block copolymer, a cross-linking agent and a catalyst. Relative to 100 parts by weight of the acrylic block copolymer, the content of the cross-linking agent is 1-10 parts by weight, and the content of the catalyst is 0.001-0.05 part by weight. The acrylic block copolymer is prepared from a methacrylic acid monomer, an acrylic acid monomer and a hydroxyl-containing monomer through free radical two-stage polymerization. The glass transition temperature of a homopolymer after the methacrylic acid monomer is polymerized is higher than that of a homopolymer after the acrylic acid monomer is polymerized. The acrylic block copolymer comprises a block A and a block B.

A multilayer film includes pluralities of first layers and polymeric second layers arranged along a thickness direction of the multilayer film. The first and second layers having different compositions. At least one layer of the multilayer film includes at least one polymer and metal oxide nanoparticles dispersed in the at least one polymer. The at least one polymer includes a first polymer including (meth)acrylic acid monomer units. The metal oxide nanoparticles are surface modified with a carboxylic acid silane surface modifying agent.

The application discloses a two-component acrylate adhesive, a preparation method and application thereof. The two-component acrylate adhesive comprises: component A, which comprises an acrylate polymer (a) dispersed in a solvent; and component B, which comprises a partially blocked isocyanate curing agent (b), which is a reactant of an isocyanate trimer and a ketoxime, wherein the blocking ratio of isocyanate groups is 35% to 65%; wherein the acrylate copolymer (a) is a copolymer comprising units derived from a (meth) acrylic acid monomer, units derived from a (meth) acrylic aryl ester monomer, units derived from a (meth) acrylic acid ester monomer containing a hydroxyl group, units derived from a (meth) acrylic alkyl ester monomer and units derived from a free radical polymerizable hindered amine light stabilizer. The two-component acrylate adhesive can significantly improve the high-temperature yellowing resistance, secondary construction performance and stability under high-temperature and high-humidity environments.

To provide a photocurable resin composition which is excellent in adhesion and creep resistance, an adhesive sheet made using the photocurable resin composition, and a laminate manufacturing method using the photocurable resin composition.SOLUTION: A photocurable resin composition contains a monofunctional (meth)acrylic monomer, a polyfunctional (meth)acrylic monomer, a photopolymerization initiator, and a thermoplastic resin, wherein the thermoplastic resin has a block structure or a graft structure, and viscosity at 25°C is 0.001 Pa s or more and 500 Pa s or less.SELECTED DRAWING: None

The present disclosure relates to a separator for an electrochemical device, the separator having a coating layer including a non-crosslinked copolymer as a binder, the copolymer including i) a repeating unit derived from an acrylic monomer having a hydroxyl group, ii) a repeating unit derived from a (meth)acrylic monomer, a (meth)acrylic salt monomer, or both, and iii) a repeating unit derived from an acrylic monomer having an amide group. Since the non-crosslinked copolymer includes i) a repeating unit derived from an acrylic monomer having a hydroxyl group and ii) a repeating unit derived from a (meth)acrylic monomer, a (meth)acrylic salt monomer, or both, in a molar ratio ranging from 1:0.1 to 1:1, the separator exhibits improved thermal shrinkage not only in a dry state but also in a wet state.

The pest control composition contains a plurality of composite particles, each of the composite particles contains a polyolefin core, and the polyolefin of the polyolefin core has 50% by weight or more of monomer structural units derived from olefin monomers based on the total weight of the polyolefin. Each of the composite particles also contains a plurality of monomer structural units derived from vinyl monomers polymerized on the polyolefin core, and the vinyl monomers include one or more (meth)acrylic monomers. The composition also contains Bacillus thuringiensis and water.

The present disclosure provides an optical member and an optical display apparatus including the optical member. The optical member includes: an adhesive layer; a transmittance control layer formed on an upper surface of the adhesive layer; and a base film formed on an upper surface of the transmittance control layer. The transmittance control layer includes a (meth)acrylic copolymer and a dye mixture. The dye mixture includes a first dye having a maximum absorption wavelength from 400 nm to 440 nm, a second dye having a maximum absorption wavelength from 480 nm to 520 nm, a third dye having a maximum absorption wavelength from 570 nm to 610 nm, and a fourth dye having a maximum absorption wavelength from 650 to 700 nm. The (meth)acrylic copolymer includes a cycloaliphatic group-containing (meth)acrylic copolymer having a glass transition temperature from 50° C. to 150° C. The cycloaliphatic group-containing (meth)acrylic copolymer comprises from 35 wt % to 70 wt % of a cycloaliphatic group-containing (meth)acrylic monomer.

The present invention provides a technology relating to corrosion prevention of water systems for better suppressing corrosion of metals in contact with water. A corrosion prevention method for a water system for inhibiting corrosion of a metal in contact with the water system, comprising: A corrosion prevention method for an aqueous system, which uses a phosphorus compound, a film-forming amine, and a copolymer of a (meth)acrylic acid monomer and a sulfonic acid group-containing monomer, the copolymer having a weight-average molecular weight of 500 to 100,000, in the aqueous system. A metal corrosion inhibitor containing a phosphorus compound, a film-forming amine, and a low-molecular-weight polymer having a weight-average molecular weight of 500 to 100,000, and a corrosion prevention method for an aqueous system, which uses the metal corrosion inhibitor to inhibit corrosion of metals in contact with water.

The present invention relates to a separator for an electrochemical device, the separator comprising a coating layer including a non-crosslinked copolymer as a binder, wherein the non-crosslinked copolymer includes i) repeating units derived from an acrylic monomer having a hydroxyl group, ii) repeating units derived from a (meth)acrylic acid monomer, a (meth)acrylate monomer, or both monomers, and iii) repeating units derived from an acrylic monomer having an amide group. The copolymer includes i) repeating units derived from an acrylic monomer having a hydroxyl group and ii) repeating units derived from a (meth)acrylic acid monomer, a (meth)acrylate monomer, or both monomers in a molar ratio of 1: 0.1-1, thereby improving a heat shrinkage rate in both dry and wet states.

The invention discloses a protective film and adhesive composition. The adhesive composition includes 100 parts by weight of a polymer resin, 3 to 15 parts by weight of a curing agent, and 0.2 to 3 parts by weight of an accelerator. The monomers for synthesizing the polymer resin comprise a first monomer and a second monomer, the first monomer is the monomer with the highest carbon number in the monomers for synthesizing the polymer resin, the second monomer is the monomer with the second highest carbon number in the monomers for synthesizing the polymer resin, and the mole number ratio of the second monomer to the first monomer is 0.15-6. Monomers for synthesizing the polymer resin comprise an acrylic monomer and a methacrylic acid monomer, and the carbon number of the acrylic monomer is higher than that of the methacrylic acid monomer. When the protective film is attached to a base material, the protective film has good attaching smoothness, and no adhesive residue is generated after the protective film is torn off.

Provided are: a resin composition containing 30-85 parts by mass of an acrylic resin (A) and 15-70 parts by mass of an aromatic vinyl resin (B), the acrylic resin (A) contains 60-95% by mass of a (meth) acrylic monomer unit and 5-40% by mass in total of at least one selected from the group consisting of a glutaric anhydride unit, a glutaric imide unit, an N-substituted maleimide unit and a lactone ring unit. The aromatic vinyl resin (B) contains 55-93% by mass of an aromatic vinyl monomer unit and 7-45% by mass of an N-substituted maleimide unit.

A method for preventing metal corrosion in water systems is provided, which minimizes the use of phosphorus compounds or metal salt compounds that contribute to eutrophication or water toxicity, thus reducing their impact on the aquatic environment, and is applicable to a wide range of water qualities. This invention provides a method for preventing metal corrosion in water systems using: a copolymer of (meth)acrylic acid monomer and a sulfonic acid-containing monomer, and an organic acid compound with an organic acid corrosion resistance index of 4 or higher.

The application discloses a kind of water-based acrylic polyurethane paint and preparation method thereof, belong to water-based paint preparation technical field, the water-based acrylic polyurethane paint includes A component and B component, the A component includes modified hydroxyl acrylic resin aqueous dispersion, auxiliary agent and deionized water, the B component includes aliphatic isocyanate and solvent B.The methyl methacrylate monomer of the application is functionally modified, and the histidinol containing imidazole group and hydroxymethyl is connected into the methyl methacrylate structure containing carbon-carbon double bond through amide bond, to form new functional monomer;The monomer is copolymerized into the main chain of acrylic resin by double bond, so that the modified resin side chain has imidazole group, hydroxymethyl group.Relying on weak base catalysis and metal coordination effect of imidazole group, the adhesion and crosslinking density of paint film can be improved, and it is suitable for the protection and decoration of various metal, non-metal substrate.

To provide an optical member whose change in light transmittance is small even after long exposure to ultraviolet rays under a condition that temperature repeatedly changes between normal temperature and high temperature.SOLUTION: An optical member and an optical display device including an adhesive layer, and a light transmission adjusting layer and a base material film formed in order on an upper surface of the adhesive layer are provided. The light transmission adjusting layer includes a (meth)acrylic copolymer and a mixture of dyes. The mixture of the dyes includes a first dye with a maximum absorption wavelength of 400 nm to 440 nm, a second dye with a maximum absorption wavelength of 480 nm to 520 nm, a third dye with a maximum absorption wavelength of 570 nm to 610 nm, and a fourth dye with a maximum absorption wavelength of 650 nm to 700 nm. The (meth)acrylic copolymer has a glass transition temperature of 50°C to 150°C and is an alicyclic group-containing (meth)acrylic copolymer. The (meth)acrylic copolymer is a copolymer of a monomer mixture containing 35 wt% to 70 wt% of the alicyclic group-containing (meth)acrylic monomer.SELECTED DRAWING: Figure 1

An adhesive protective film for polyimide-based optical devices containing polyimide ash, an optical member, and an optical display apparatus including the same are disclosed. The adhesive protective film includes a cured product of a composition comprising: a (meth)acrylic copolymer; a curing agent; a (meth)acrylic oligomer; and an aromatic group-containing mono- or higher functional (meth)acrylic monomer, wherein the adhesive protective film has a storage modulus of 0.1 MPa or less at −20° C., a peel strength of 350 gf / inch or more at 60° C. and 93% RH (relative humidity) with respect to a polyimide-based optical device containing a polyimide ash, and a creep of 40% or less at 60° C.