106 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 object of the present invention is to provide an ester-compound-containing composition having excellent storage stability and a method for producing the same, a polymerizable composition using the ester-compound-containing composition, a method for producing a (meth)acrylic polymer. The ester-compound-containing composition contains an ester compound (1) represented by Formula (1): CH2═CR1—C(═O)—O—R2.

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.

To provide an adhesive composition for a decorative film that exhibits superior adhesion immediately after application and demonstrates superior durability, and a decorative film prepared using the adhesive composition.SOLUTION: An adhesive composition for a decorative film comprises: a (meth)acrylic polymer (A) comprising 1 to 20 mass% of structural units derived from a carboxyl group-containing monomer; and a polymer (B) having a glass transition temperature of 30°C to 200°C and a number average molecular weight (Mn) of 500 to 10000, wherein the content of the polymer (B) is 0.1 to 100 pts.mass based on 100 pts.mass of the (meth)acrylic polymer (A).SELECTED DRAWING: None

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.

To provide a laminate which achieves both a pressure-sensitive adhesive force or an adhesive force and difficulty in permeation of a pressure-sensitive adhesive or an adhesive into a void of a void layer.SOLUTION: A laminate 10 comprises a void layer 11 and a pressure-sensitive adhesive layer 12, wherein the pressure-sensitive adhesive layer 12 is directly laminated on one surface or both surfaces of the void layer 11, the pressure-sensitive adhesive layer 12 is formed from a pressure-sensitive adhesive including a (meth)acrylic polymer and a monomer type silane coupling agent, the content of the monomer type silane coupling agent is 5.0 pts.mass or less based on 100 pts.mass of the (meth)acrylic polymer.SELECTED DRAWING: Figure 1

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 curable composition that yields a cured product which readily elongates even under a small load, or a curable composition that exhibits little change in physical properties even after high-temperature storage.SOLUTION: A curable composition according to one embodiment of the present invention comprises: component A, a (meth)acrylic polymer having a silyl group; component B, a hydrocarbon having a carbon-carbon double bond within the molecule; component C, a radical generator; and component D, a curing catalyst. Component A is a polymer meeting specific requirements.SELECTED DRAWING: None

The present invention relates to a multilayer coating system present on a substrate comprising at least three layers L1 to L3, wherein the layer L1 is obtained from a primer coating composition comprising at least two components A) and B) separated from each other, the component A) contains in particular at least one constituent a2), which is at least one (meth)acrylic polymer modified with at least one chlorinated polyolefin, the polymer containing functional groups reactive towards NCO groups, the layer L2 is obtained from a basecoat composition, and the layer L3 is obtained from a clearcoat composition, a method for preparing a multilayer coating system using said primer coating system, and a kit-of-parts comprising at least said primer coating system and the clearcoat composition or clearcoat system separated from each other.

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.

The present invention aims to provide an epoxy resin composition capable of forming a resin cured product having excellent impact resistance. The epoxy resin composition of the present invention is an epoxy resin composition comprising an epoxy resin (A) having a solubility parameter (SP value) of 11 to 15 and a (meth) acrylic polymer (B) having an SP value of 9.5 to 11, wherein the (meth) acrylic polymer (B) is a reaction product of a carboxyl group-containing (meth) acrylic polymer (B1) and an epoxy compound (B2), and the absolute value of the difference between the SP value of the (meth) acrylic polymer (B) and the SP value of the epoxy resin (A) is 0.1 to 3.3.

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).

The invention relates to a multilayer metallized paper-based packaging material (1) comprising, from its outer side to its inner side:-a paper layer (2) having a grammage in the range of 30 g / m2 to 120 g / m2; -at least one organic barrier layer (3) of a polymer selected from the list of polyvinyl alcohol (PVOH), ethylene-vinyl alcohol (EVOH), butenediol-vinyl alcohol copolymer (BVOH) or combinations thereof in an amount of from 0.5 g / m2 to 20 g / m2; -at least one inorganic barrier layer (4) selected from the list of: a metal, a metalloid or a combination thereof, the inorganic layer having a thickness of between 1 nm and 100 nm; and-at least one organic heat seal layer (5) made of an acrylic or methacrylic polymer grafted with at least one type of ionomer, the heat seal layer being applied in an amount of between 2 g / m2 and 20 g / m2.

The invention provides a liquid cosmetic that contains at least a capsule in an aqueous phase, wherein the capsule comprises agar shell encapsulating an oil component, and the aqueous phase comprises one thickener selected from the group consisting of a (meth)acrylic polymer and a polysaccharide, and an amphiphilic substance having an HLB value of no greater than 13.

The invention relates to a method (100) for producing a spar cap for a rotor blade of a wind turbine, the method comprising the steps of: providing a plurality of pultruded sheets (110), the pultruded sheets being a thermoplastic composite comprising 45% or less by volume of a polymer matrix comprising a (meth) acrylic polymer and at least 55% by volume of fibers, preferably carbon fibers; stacking the pultruded sheets into a pre-spar cap shape (130); and joining the stacked pultruded sheets (140) in order to produce the spar cap. The invention also relates to a spar cap, a rotor blade, a method for producing a rotor blade and a wind turbine.

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

Described herein is a coating composition including one or more (meth)acrylic polymers including moieties of formula (I)*—C(═O)—O—CH2—Si(Ra)3−x(Rb)x  (I)where Ra=methoxy; Rb=an alkyl group containing 1 to 4 carbon atoms or an alkoxy group containing 1 to 4 carbon atoms; x is 0 or 1; and the asterisk * denotes the position at which the moiety of formula (I) is attached to the polymeric backbone of the (meth)acrylic polymer; further containing one or more catalysts of formula (II)H3C—C(Rc)(Rd)—C(═O)—O−M+  (II)where Rc and Rd=alkyl groups containing 1 to 6 carbon atoms, with the proviso that the sum of the number of carbon atoms in residues Rc and Rd ranges from 2 to 7, and M=for Li, K or Na, and further containing one or more aprotic organic solvents.

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