79 results about "Methacrylic Acid Polymers" patented technology

To provide a pressure-sensitive adhesive tape which suppresses the surface contamination of an adherend with foreign matter and is excellent in antistatic performance.SOLUTION: An adhesive tape according to an embodiment of the present invention includes a base material; and an adhesive layer formed of an active energy ray-curable adhesive containing a (meth) acrylic polymer having a radiation-polymerizable carbon-carbon double bond, an ionic liquid, and a photopolymerization initiator.SELECTED DRAWING: Figure 1

Provided is a curing tape which exhibits high adhesiveness and excellent removability without depending on the touch of fingers. The curing tape is provided with a base material and an adhesive layer provided on the base material, the adhesive layer is formed from an adhesive composition containing a (meth) acrylic polymer and a crosslinking agent, and the adhesive layer has a probe adhesive area of 0.14-0.40 (inclusive) as measured under specific conditions.

The present disclosure provides an adhesive composition contains a (meth)acrylic polymer (A) and a photoinitiator (B).

An aqueous suspension of a mineral material, for example calcium carbonate, may be prepared by wet grinding in the presence of an aqueous dispersion of (meth)acrylic polymer neutralized by a combination of at least one monovalent ion and at least one divalent ion. Such an agent may be used for facilitating grinding and such a mineral suspension may be used for preparing a mass filler for the preparation of paper, for preparing a paper coating slip, or for preparing a coating composition.

Provided is a release coating agent for a polyester base material, which has excellent adhesion to the polyester base material and has heat peeling resistance. A release coating agent for a polyester substrate according to an embodiment includes an aqueous dispersion in which a polyurethane resin is dispersed in an aqueous dispersion medium. The aqueous dispersion contains a (meth) acrylic polymer that contains, as constituent components, a monofunctional alkyl (meth) acrylate having an alkyl group having 4-22 carbon atoms and a poly (meth) acrylate having 2-6 functional groups.

To provide a binder resin composition for baking which is excellent in baking property, has high viscosity, and has high thixotropy property and thread breakage property, a metallic paste, an inorganic sintered body, an electronic device, and a solar panel.SOLUTION: A binder resin composition for baking contains a (meth)acrylic polymer (I) having a crosslinked structure, wherein when solid content concentration of the binder resin composition for baking is 7 mass%, viscosity (η1) at 23°C measured at a shear rate of 1(1 / s) is 10 Pa s or more.SELECTED DRAWING: None

The present invention addresses the problem of providing: a (meth)acrylic polymer regeneration device having excellent utilization efficiency of energy consumed in recycling treatment; a (meth)acrylic polymer regeneration treatment method; and a method for producing a (meth)acrylic acid ester.　The present invention relates to a (meth)acrylic polymer regeneration device comprising a thermal decomposition unit that thermally decomposes a (meth)acrylic polymer to obtain pyrolysis gas, a heat exchange unit that transfers heat from the pyrolysis gas to a heat medium, and a transfer line that transfers the heat medium.

The present disclosure provides aqueous dispersions of hydroxyl-functional core-shell particles. The particle core comprises a (meth) acrylic polymer and the shell comprises a polyurethane polymer. And the mass ratio of the core to the shell ranges from 20: 80 to 80: 20. The shell has a hydroxyl number of from 1 mg KOH / g to 40 mg KOH / g and an acid number of from 10 mg KOH / g to 60 mg KOH / g. The polyurethane is prepared from (a) a first prepolymer having a polymerizable ethylenically unsaturated group at one end and an active hydrogen functional group at the opposite end; (b) a second prepolymer having a polymerizable ethylenically unsaturated group at each end thereof; and (c) a third prepolymer having an active hydrogen functional group at each end thereof. Also provided are aqueous curable film-forming compositions, multi-layer coated substrates, and methods of improving adhesion and / or cohesion between coatings on a substrate.

To provide a method for producing a curable composition capable of producing a curable composition which contains a polyoxyalkylene-based polymer having a reactive silicon group, a (meth)acrylic polymer having a reactive silicon group, a hindered amine-based photostabilizer, and a hindered phenolic antioxidant, and gives a cured product that is difficult to be colored by a weathering test and generate tackiness thereon.SOLUTION: When a curable composition containing a polyoxyalkylene-based polymer (A) having a reactive silicon group, a (meth)acrylic polymer (B) having a reactive silicon group, a hindered amine-based photostabilizer (C), and a hindered phenolic antioxidant (D) is produced, a liquid resin component which contains at least one kind of the polyoxyalkylene-based polymer (A) and a (meth)acrylic polymer (B), and is 50°C or higher, and a melted hindered phenolic antioxidant are mixed.SELECTED DRAWING: None

The present invention provides an adhesive composition capable of forming an adhesive layer or the like having excellent high-temperature properties. The adhesive composition of the present invention comprises a (meth)acrylic polymer (A), a rosin-based tackifying resin (B) having a glass transition temperature of 85°C or higher, a hydroxyl value of more than 45 mgKOH / g, and an acid value of 5 to 20 mgKOH / g, and a crosslinking agent (C).

The invention provides a polymer microsphere composite material, a diaphragm, a battery and electric equipment. The polymer microsphere composite material comprises a polymer microsphere and a shell arranged on the surface of the polymer microsphere, the shell comprises nanocellulose, and the polymer microsphere comprises polyolefin grafted with a modified polymer; the modified polymer comprises at least one of an acrylate polymer, an acrylamide polymer, an acrylonitrile polymer, a methacrylic acid polymer, a styrene polymer and a maleic anhydride polymer. The polymer microsphere composite material is used for a diaphragm coating, can provide good wettability, and solves the problem that the binding power is reduced due to swelling of a traditional adhesive layer in an electrolyte.

One embodiment of the present invention relates to a photosensitive resin composition for manufacturing a plated shaped object, a method for manufacturing a resist pattern film, or a method for manufacturing a plated shaped object. The composition contains a (meth) acrylic polymer (A1) having an acid-dissociable group, a photoacid generator (B), at least one compound (C) selected from the group consisting of an organic carboxylic acid compound (C1) having a pKa of 4.5 or less, an organic carboxylic acid anhydride (C2) having a pKa of 4.5 or less, and a polyphenol compound (C3) having a CLogP of 4.5 or less, and a solvent (G).

To provide a curable composition that yields a cured product with excellent water vapor barrier properties, and a cured product of the curable composition. [Solution] A liquid polybutadiene compound (C) and a metal soap (D) are added to a curable composition containing a polyoxyalkylene polymer (A) having reactive silicon groups, a (meth)acrylic polymer (B) having reactive silicon groups, and a curing catalyst (E).

This anisotropic light diffusion film (3) has an anisotropic light diffusion layer (30) formed by photopolymerization of a composition comprising a photopolymerizable compound, a photopolymerization initiator, and a (meth)acrylic polymer or copolymer or a urethane polymer or copolymer. The anisotropic light diffusion layer (30) has a matrix region (31) and a columnar region (32) composed of a plurality of columnar structures (33) having a refractive index different from that of the matrix region (31).

To provide an adhesive composition for producing an adhesive sheet suitable for reducing a keratin exfoliation amount when removed from a skin.SOLUTION: An adhesive composition includes: a (meth)acrylic polymer that has a constitutional unit U1 derived from a first (meth)acrylic acid alkyl ester having an alkyl group having 1 to 7 carbon atoms, a constitutional unit U2 derived from a second (meth)acrylic acid alkyl ester having an alkyl group having 8 to 12 carbon atoms and a constitutional unit U3 derived from a carboxyl group-containing monomer; a nonion-based emulsifier; and an organic liquid component including a carboxylate ester.SELECTED DRAWING: Figure 1

Provided is a composition containing: a (meth)acrylic polymer having (meth)acryloyl groups at both ends of a poly(meth)acrylate chain; a random copolymer containing alkyl (meth)acrylate and hydroxyalkyl (meth)acrylate as monomer units; and metal particles.

The present invention provides a development roll for an electrophotographic apparatus, in which a surface layer has low electric resistance and excellent wear resistance, and which is excellent in uniformity and enables the achievement of excellent images over a long period of time.　This development roll (10) for an electrophotographic apparatus comprises: a shaft body (12); an elastic body layer (14) that is formed on the outer peripheral surface of the shaft body (12); and a surface layer (16) that is formed on the outer peripheral surface of the elastic body layer (14). The elastic body layer (14) is composed of a silicone base material that contains silicone rubber. The surface layer 16 is composed of a crosslinked body of a composition that contains a urethane prepolymer which is composed of the substances (A) and (B) described below, and the substances (C) to (E) described below. The breaking stress of the surface layer (16) is 30 MPa or more. (A) An aromatic isocyanate, (B) A caprolactone-based polyol or a carbonate-based polyol, (C) Carbon black, (D) A (meth)acrylic polymer that contains a hydrophilic group and a silicone group in each molecule, (E) An isocyanurate

To provide a pressure-sensitive adhesive sheet which has excellent adhesive strength and has excellent resistance to high temperature or to ultraviolet rays.SOLUTION: A pressure-sensitive adhesive sheet comprises a photocured product of a resin composition comprising a (meth)acrylic polymer (A) and a photoinitiator (B) and a content of an unreacted photoinitiator (B) is 1.0 mass% or less.SELECTED DRAWING: None

The present invention addresses the problem of providing a (meth)acrylic polymer regeneration device, a (meth)acrylic polymer regeneration treatment method, and a (meth)acrylic acid ester production method with which it is possible to effectively suppress water from being mixed into a thermal decomposition product of a (meth)acrylic polymer.　The present invention relates to a (meth)acrylic polymer regeneration device 100 that includes: a dehydration unit 1 that removes water contained in a (meth)acrylic polymer; and a thermal decomposition unit 2 that thermally decomposes the (meth)acrylic polymer from which water has been removed by the dehydration unit 1.

[Problem] To provide an adhesive composition with which it is possible to form an adhesive layer that is excellent in terms of refractive index and high-temperature adhesiveness durability. [Solution] The present invention provides an adhesive composition which contains a (meth)acrylic polymer that has a constituent unit derived from a hydroxyl group-containing (meth)acrylic monomer and a constituent unit derived from a transition metal element-containing (meth)acrylic monomer. It is preferable that the content of the constituent unit derived from the hydroxyl group-containing (meth)acrylic monomer is 0.8 mass% to 15 mass% inclusive with respect to all constituent units that constitute the (meth)acrylic polymer. [Selected drawing] None

One embodiment of the present invention relates to an adhesive composition or adhesive sheet, comprising a (meth)acrylic acid polymer (A) as a polymer containing specific amounts of at least one (meth)acrylic acid ester selected from alkoxyalkyl (meth)acrylates and specific alkyl (meth)acrylates, a crosslinkable functional group-containing monomer (excluding amino group-containing monomers), and an amino group-containing monomer as a monomer component; an acid-modified polyolefin (B); a specific tackifier resin (C); and a crosslinking agent (D), wherein the adhesive composition satisfies specific requirements (I) to (III).

A lithographic printing plate precursor includes: a support; and an image-recording layer on the support, and the image-recording layer contains (meth)acrylic polymer A having a substituent containing two or more silicon atoms in a side chain.

To provide a (meth)acrylic polymer regeneration apparatus capable of recovering a monomer having a (meth)acryloyl group with high purity, a (meth)acrylic polymer regeneration method, and a production method for a (meth)acrylic acid ester.SOLUTION: A (meth)acrylic polymer regeneration apparatus comprises a pyrolysis section that performs pyrolysis of a (meth)acrylic polymer to obtain a pyrolysis gas, a collection section that collects impurities contained in the pyrolysis gas, and a gas treatment section that treats the pyrolysis gas after the impurities have been collected in the collection section, wherein the collection section collects impurities by at least one collection mechanism selected from inertial impaction, interception, diffusion, and electrostatic action.SELECTED DRAWING: Figure 1

An object of the present invention is to provide a removable pressure-sensitive adhesive composition which is excellent in wettability and reduces the pressure-sensitive adhesive force at the time of low-speed and high-speed peeling.SOLUTION: A (meth) acryl-based polymer (A) containing 85 to 98.5% by mass of an alkyl group-containing unsaturated monomer (a1) having an alkyl group having 1 to 18 carbon atoms and 1.5 to 15% by mass of a polymerizable monomer (a2) having a functional group, wherein the alkyl group-containing unsaturated monomer (a1) having an alkyl group having 1 to 18 carbon atoms contains at least n-octyl acrylate, and the (meth) acryl-based polymer (A) has an acid number of 7. 5mgKOH / g or less.SELECTED DRAWING: None

To provide a curable composition that is less prone to gelation when stored at high temperatures, has a moderately low viscosity, and yields a cured product with excellent tensile strength, and a cured product of the curable composition. [Solution] In a curable composition comprising a polyoxyalkylene polymer (A) having reactive silicon groups, a (meth)acrylic polymer (B) having reactive silicon groups, and a curing catalyst (D), the (meth)acrylic polymer (B) is a (meth)acrylic polymer having constituent units derived from an epoxy group-containing (meth)acrylic acid ester, and the curable composition contains a polyfunctional thiol (C).

A laminate including an adhesive layer that has both a bonding function and a releasing function in a single layer and can be released through light irradiation, an adhesive composition for forming the releasable adhesive layer, and a method for producing a processed semiconductor substrate using the laminate. The adhesive composition includes an adhesive component and a release agent component, wherein the adhesive component contains a polysiloxane resin, and the release agent component contains a (meth)acrylic polymer including a silicone-based first unit and a light-absorbing structured second unit.

This application relates to an acrylic resin coating and a coating product. The acrylic resin coating comprises component A and component B. Component A comprises, by weight, 35-56 parts (meth)acrylic polymer, 2-21 parts (polyester), 0.1-2 parts (phosphate compound), and 0.01-1 parts (catalyst). The phosphate compound is selected from at least one of monobasic and dibasic phosphates. Component B comprises a curing agent. When applied to repair varnishes, the acrylic resin coating exhibits excellent adhesion to both water-based and oil-based repair paints, achieving a balance between drying speed and high appearance. This effectively addresses the yellowing problem of traditional coatings applied to repair varnishes after exposure to sunlight.

The present invention relates to an antifouling coating composition comprising: (i) a (meth)acrylic silyl ester copolymer containing at least 15% by weight of silyl ester monomers relative to the total weight of monomers in the (meth)acrylic silyl ester copolymer; and / or (ii) a (meth)acrylic polymer containing 10% by weight or less of silyl ester monomers and 5.0% by weight or less of metal ester monomers relative to the total weight of monomers in the (meth)acrylic polymer; (iii) a monocarboxylic acid or a metal salt thereof; and (iv) a biocide comprising a. tralopyryl and b. one or more copper compounds having a copper content of at least 40% by weight relative to the formula weight of the copper compound, wherein the biocide content in the entire coating composition is 10.0% by weight or less; and (v) a total of at least 35% by weight of pigments, fillers, and biocides relative to the total weight of the entire coating composition.

The reverse iodine transfer polymerization of an ethylenically unsaturated monomer comprising (meth)acrylic acid, a salt thereof, or a combination thereof, in the presence of a radical polymerization initiator, an oxidant, an iodide salt, and a solvent, is a useful method for manufacturing (meth)acrylic acid polymers. The amounts of components used can range from 5 to 500 equivalents of the ethylenically unsaturated monomer comprising (meth)acrylic acid, a salt thereof, or a combination thereof, in the presence of 1 to 3 equivalents of the radical polymerization initiator, 0.2 to 1 equivalent of the oxidant, and 1 equivalent of the iodide salt. (Meth)acrylic acid polymer solutions are prepared by these methods. (Meth)acrylic polymers are useful as dispersants.

The present invention provides a moisture-curable resin composition in which neither a polysiloxane nor a tin catalyst is used and which has high adhesiveness to metals and plastics and further has stable adhesion performance as an adhesive or sealant. The present disclosure relates to a moisture-curable resin composition comprising: component (A), which is a polyoxyalkylene polymer having a hydrolyzable silyl group and a (meth)acrylic polymer having a hydrolyzable silyl group; component (B), which is a silane coupling agent having one or more epoxy groups in the molecule; and component (C), which is a titanium catalyst.