173 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 application belongs to the technical field of polymer polymer water reducing agent, and particularly relates to a kind of anti-mud polycarboxylic acid high-performance water reducing agent and its preparation method.The preparation method steps are as follows: D4H and polyether macromonomer are added to organic solvent according to the molar ratio of 1-1.5:1 to be mixed and dissolved, then organic tin catalyst is added to heat and stir to react, after the reaction is completed, the organic solvent and unreacted raw materials are removed by vacuum evaporation, to obtain anti-mud functional monomer;((Methyl) acrylate hydroxyalkyl ester monomer, anti-mud functional monomer and chain transfer agent are added to deionized water to be mixed and dissolved, then heated to 40-60 DEG C, drop the oxidation-reduction initiator and (methyl) acrylate monomer to initiate copolymerization reaction, after the reaction is completed, add alkali to neutralize, to obtain anti-mud polycarboxylic acid high-performance water reducing agent.The water reducing agent obtained by the application has significantly improved water reducing performance and anti-mud performance.

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.

The invention discloses a choline polymer as well as a preparation method and application thereof. The copolymer comprises an ethylenically unsaturated monomer unit with choline and / or a derivative thereof and a hydrophilic (methyl) acrylic acid monomer unit. According to the invention, choline and a derivative monomer thereof are introduced into the copolymer, so that the copolymer has cationic polymer properties and liver efficient specific targeting properties. Meanwhile, the choline polymer can be modified on the surface of drug-loaded nanoparticles (such as lipid nanoparticles), and can also form a cation-drug compound through a cation unit of choline and drug molecules, so that drug leakage in the storage process and early release of the drug in blood circulation are greatly reduced, and the bioavailability of the drug is improved. Toxic and side effects of the medicine are reduced, and the medicine is efficiently targeted and delivered to the liver.

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.

To provide a photocurable adhesive composition for printing excellent in repeated printability, photocurability under presence of oxygen, and adhesiveness and retention performance after cure, and a cured product and a laminate obtained using the photocurable adhesive composition for printing.SOLUTION: A photocurable adhesive composition for printing contains a (meth)acryl monomer, a photopolymerization initiator and a thermoplastic resin, and does not contain a moisture-curable resin, where the photopolymerization initiator has a weight average molecular weight of 800 or more.SELECTED DRAWING: None

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.

The present disclosure relates to an elastomeric roof coating composition comprising: (1) an acrylic binder in an amount of from 30.0 to 50.0 wt%, based on the total weight of the composition, comprising (i) from 90 to 99.6 wt%, based on the weight of the acrylic binder, of an acrylic polymer; wherein the acrylic polymer comprises at least 90% by weight of acrylic or methacrylic repeating units; and (ii) 0.4 to 10.0 wt%, based on the weight of the acrylic adhesive, of a (meth) acrylic monomer; (2) zinc oxide in an amount of 1.5 to 4.0 wt% based on the total weight of the composition; (3) a silane coupling agent in an amount of 0.1 to 0.5 wt% based on the total weight of the composition; and (4) a remainder, which is water. In the present invention, the elastomeric roofing coating composition may exhibit excellent adhesion to various substrates, particularly to polyester coated steel, preferably also exhibit low odor characteristics (e.g., low ammonia release) and / or good acid resistance.

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 invention relates to modified methyl methacrylate resin as well as a preparation method and application thereof, and relates to the technical field of resin materials. The modified methyl methacrylate resin comprises the following components: 50-60 parts of a methyl methacrylate monomer, 25-35 parts of an n-butyl acrylate monomer, 1-2 parts of a methacrylic acid monomer, 2-3 parts of a trimethylolpropane triacrylate monomer, 3-5 parts of chlorinated palm oil methyl ester, 0.3-0.8 part of polyvinyl butyral, 3.4-5.7 parts of chlorinated polyether resin, 0.1-0.5 part of 2, 4, 6-trimethyl-1, 3-pentanediol monoisobutyrate, 0.1-0.5 part of a coupling agent, 0.1-0.5 part of a catalyst and 0.1-0.5 part of an antioxidant. The invention relates to a flame-retardant coating which is prepared from the following components in parts by weight: 0.2 to 0.8 part of 2, 2, 6-trimethylbenzoyldiphenoxyphosphorus, 0.5 to 1.5 parts of paraffin, 0.1 to 0.5 part of polymerization inhibitor, 0.02 to 0.05 part of initiator and 0.5 to 1 part of accelerant According to the modified methyl methacrylate resin provided by the invention, various modified materials are introduced, and the components are mutually cooperated, so that the comprehensive performance of the modified methyl methacrylate resin is remarkably improved, and the defects in the prior art are overcome.

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.