276 results about "Methacrylic monomers" patented technology

Methods for the preparation of low surface energy block co-polymers are disclosed. The block co-polymers comprise at least two blocks, each of which comprises, in polymerized form, an acrylic monomer, a methacrylic monomer, or a mixture thereof. At least one block is a low surface energy block, which comprises, in polymerized form, a low surface energy monomer Low surface energy macroinitiators useful in forming the block co-polymers are also disclosed. The block co-polymers may be prepared by nitroxide mediated controlled free radical polymerization.

It is an object of the present invention to provide an alkali-soluble maleimide-based copolymer excellent in resistance for thermally yellowing, high in hardness, excellent in solubility in solvents and capable of readily forming uniform coat films and, in addition, capable of being satisfactorily dissolved in alkali water when remaining uncured, as well as a pigment dispersion composition comprising such copolymer and an ionizing radiation-curable resin composition comprising such copolymer. Another object of the present invention is to provide a color filter and a liquid crystal display which are formed by using the ionizing radiation-curable resin composition. The present invention is related to an alkali-soluble maleimide-based copolymer which comprises, as essential constituents, 5 to 50% by mass of a maleimide monomer unit which is at least one unit selected from the group consisting of a N-cyclohexylmaleimide monomer unit, a N-benzylmaleimide monomer unit and a substituted N-benzylmaleimide monomer unit, 8 to 30% by mass of the (meth)acrylic acid monomer unit and 30 to 87% by mass of a (meth)acrylic acid ester monomer unit and which satisfies the condition represented by the formula:

0.4×X≦Y≦0.5×X+10  where X is the content, in % by mass, of the N-cyclohexylmaleimide monomer unit, the N-benzylmaleimide monomer unit and the substituted N-benzylmaleimide monomer unit and Y is the content, in % by mass, of the (meth)acrylic acid monomer unit.

Core-shell nanoparticles comprising: (a) a core which comprises a water insoluble polymer or copolymer, and (b) a shell which comprises a hydrophilic polymer or copolymer; said nanoparticles being obtainable by emulsion polymerization of a mixture comprising, in an aqueous solution, at least one water-insoluble styrenic, acrylic or methacrylic monomer and specific hydrophylic monomers or copolymers.

A composite polymer composition comprising the emulsion polymerization product of: (i) an aqueous dispersion comprising the melt kneading product of one or more polyolefins, from 2 to 25 wt % of one or more dispersion stabilizing agents, water and optionally a neutralizing agent, and (ii) one or more (meth)acrylic monomers; wherein the one or more polyolefins have a Tg equal to or less than 50° C. and comprise from 0.5 to 100 wt % functionalized polyolefin; and wherein the melt kneading product (i) comprises polymer particles having a volume average particle size between 150 nm and 2000 nm dispersed in the water; and wherein the one or more (meth)acrylic monomers polymerize onto the polymer particles form composite polymer particles using an emulsion polymerization process is provided.

The invention relates to a preparation method of flame-retardant core-shell-type acrylic resin, which comprises the following steps of: adding deionized water, emulsifying agent, methacrylic acid and monomers A for emulsification, starting to drop initiator when temperature reaches 75DEG C, keeping dropping time to be 1-3h, preserving heat for reaction for 3-5h, dropping ester compounds and keeping reaction time to be 1-3h to obtain core-layer emulsion; and simultaneously adding monomers B and initiator into the core-layer emulsion, keeping dropping time to be 1-3h, preserving heat at 75-85DEG C for reaction for 2h, dropping bentonite dispersion liquid with mass percent being 20 percent, preserving heat for reaction for 1-3h, dropping cross-linking agent, preserving heat for reaction for 1-2h, decreasing temperature to 50DEG C, adding emulsifying agent into a reaction system, keeping reaction time to be 30min, and adding ammonia water to regulate pH (potential of hydrogen) to 7-8 to obtain the flame-retardant core-shell-type acrylic resin. The obtained acrylic resin has the advantages that not only can the defect of hot sticking and cold shortness of the traditional acrylic resin be improved, but also the flame retardation of the acrylic resin can be improved.

The present invention provides a hard coat film and a hard coat layer forming composition which forms a hard coat layer adhering well to a substrate, which does not curl up easily and having antifouling properties, excellent abrasion resistance, surface hardness, and a high level of visibility. The present invention has a specific feature in that a hard coat layer forming composition which includes polyfunctional acrylic (or methacrylic) monomer (A), acrylic monomer having a hydroxyl group (B), radical photopolymerization initiator (C), and fluorocompound having a polymerizable group (D) is used. The hard coat film of the present invention has the hard coat layer which is formed by curing the hard coat layer forming composition on a transparent substrate and has a surface free energy less than 20 mN/m and the thickness in the range of 5-25 μm.

This invention provides a pressure-sensitive adhesive composition that exhibits excellent pressure-sensitive adhesive properties after crosslinking treatment, does not cause lifting or lifting upon heat treatment or treatment under high-humidity conditions particularly even in the case of a pressure-sensitive adhesive layer having a reduced layer thickness, and has excellent durability. A pressure-sensitive adhesive layer formed using the pressure-sensitive adhesive composition, and a process for producing the same are also provided. Further, an optical member with pressure-sensitive adhesive comprising the pressure-sensitive adhesive layer and an image display using the same are provided. The pressure-sensitive adhesive composition is characterized by comprising 100 parts by weight of an (meth)acrylic polymer and 0.02 to 2 parts by weight of a peroxide, and 0.02 to 2 parts by weight of an isocyanate crosslinking agent, the (meth)acrylic polymer comprising as monomer units 50 to 98% by weight of an (meth)acrylic monomer represented by general formula CH₂═C(R₁)COOR₂, wherein R₁ represents hydrogen or a methyl group and R₂ represents an alkyl group having 2 to 14 carbon atoms, and 0.1 to 35% by weight of a nitrogen-containing monomer.

The invention provides a styrene-acrylic emulsion for priming paint as well as a preparation method and an application thereof. The preparation method comprises the following steps: by using a surfactant compound from an anionic surfactant and a nonionic surfactant as an emulsifier and using peroxide as an initiator, carrying out free-radical emulsion polymerization on (methyl) acrylic monomer, (methyl) acrylate monomer, (methyl) styrene, cross-linking monomer and an accelerant under the conditions of 50-95 DEG C and normal pressure to obtain an emulsion; and then, neutralizing the obtained emulsion with aqueous alkali, and regulating the pH value to be 7-10 to obtain a finished product. The styrene-acrylic emulsion for priming paint is a product which can be used for paper-making paint and has high performance and environmental protection. When the product is applied to the priming paint of coated paper, the surface strength of the coated paper can be obviously increased, and the phenomena of fur falling and powder falling can be improved.

The invention relates to cured (meth)acrylate based adhesive composition, comprising at least two co-continuous phases of interpenetrating networks and at least two types of polymeric inclusions, in which one of the co-continuous phases comprises a polymer or copolymer based on at least one acrylic or methacrylic acid monomer or a derivative thereof. These compositions exhibit better facture toughness, especially at low temperatures.

The invention discloses an electrode binding agent of a novel lithium ion battery. The electrode binding agent is an ABA-type three-block polymer, wherein polyacrylic acid blocks are arranged at two ends, a polyacrylate block is arranged at a middle part, each polyacrylic acid block is formed by polymerizing a methacrylic acid monomer and/or an acrylic acid monomer, and the polyacrylate block is formed by polymerizing one or more of methyl acrylate, butyl acrylate, hydroxyethyl acrylate and hydroxypropyl acrylate. The invention also discloses a preparation method for the electrode binding agent of the novel lithium ion battery. The block copolymer binding agent provided by the invention is small in electrode polarization and high in discharging specific capacity, the capacity retention ratio during the circulation process is high, and the binding agent is small in interface impedance, can be simultaneously applicable to a positive electrode and a negative electrode and has huge application prospect in the field of the lithium ion battery.

The invention relates to a preparation method of a flame resistance core-shell type aqueous acrylic ester resin coating. Water, emulsifiers, methacrylic acid and a monomer A are added and emulsified, an initiator starts to be added dropwise for 1-3 hours when the temperature is 75 DEG C, reaction is carried out for 3-5 hours with the temperature kept at 75 DEG C, quaternary phosphonium salt is added to react for 1-3 hours, and core layer emulsion is obtained; a monomer B and an initiator are added into the core layer emulsion dropwise for 1-3 hours at the same time and react for 2 hours with the temperature kept at 75-85 DEG C, borane is added dropwise, reaction is carried out for 1-3 hours with the temperature kept at 75-85 DEG C, then cross-linking agents are added dropwise, reaction is carried out for 1-2 hours with the temperature kept at 75-85 DEG C, the temperature is decreased to be 50 DEG C, an emulsifier is added into a reaction system, the reaction time is 30 minutes, ammonium hydroxide is added to adjust the pH value to be 7-8, and the flame resistance core-shell type aqueous acrylic ester resin coating is obtained. The flame resistance of obtained flame resistance core-shell type aqueous acrylic ester resin can be greatly improved, and the defect that traditional acrylic ester resin is sticky at high temperature and crisp at low temperature is also overcome.

Ink for aqueous inkjet recording contains water, a hydrosoluble organic solvent; a pigment; and an acrylic-modified polycarbonate-based urethane resin that contains at least one of an acrylic monomer, a methacrylic monomer, and an alkylester thereof as components.

An emulsion composition for building exterior walls is provided comprising in admixture, [A] a graft copolymerized emulsion obtained by adding to (1) an oil-in-water type emulsion containing at least one organopolysiloxane having an organic group containing a radical reactive group or SH group, (2) a monomer or monomeric mixture containing at least 70 wt % of at least one monomer selected from acrylic and methacrylic monomers and effecting emulsion graft polymerization of component (2) to the organopolysiloxane, and [B] a silicone resin-containing emulsion. The emulsion composition is capable of forming an elastic, flexible coating which is endowed with water resistance, weather resistance, water repellency, adhesion and heat resistance and maintains these properties over a long period of time. It can thus be used as a base in a variety of paints and coating agents.

The present invention relates to a polymerizable composition, comprising a polymerizable monomer of formula (I), a copolymerizable UV-initiator, at least one copolymerizable (meth)acrylic monomer:

R¹—(OCH₂CH₂)n-L-OC(O)—CR²═CH₂  Formula (I)

wherein R¹ is hydrogen or a C₁-C₆ alkyl group, n is an integer from 1 to 100, L is a single bond or a divalent linking group, preferably a single bond or a C_1-6 alkylene group, and R² is hydrogen or a CH₃ group; and

• • optionally (d) at least one copolymerizable non-acrylate monomer;

wherein the amount of the polymerizable monomer of formula (I) is between 2.5 and 40% by weight of the total of all polymerizable monomers (a), (b), (c) and (d).

The invention also relates to a random copolymer obtained by reacting the polymerizable composition, a crosslinked product of the random copolymer and an adhesive composite material comprising the random copolymer or the crosslinked product on a substrate.

Pressure-sensitive adhesive compositions that resist water-whitening are provided. The compositions comprise emulsion copolymers formed from a plurality of monomers that includes a plurality of (meth)acrylic monomers, at least one trifluoroalkyl(meth)acrylate monomer, and at least one alkylimidazolidone (meth)acrylate monomer. Preferably, the (meth)acrylic monomers comprise a plurality of soft monomers, at least one hard monomer and at least one acid monomer. The plurality of monomers may further include at least one aliphatic urethane di(meth)acrylate, an oligomer. The pressure-sensitive adhesive composition also comprises a surfactant system including at least one surfactant.

A polarizing plate is provided that has high hardness, can have a reduced thickness, and has excellent in polarization properties. The polarizing plate includes a polarizer, an adhesive layer, and a cured resin layer. The adhesive layer is stacked on at least one surface of the polarizer. The cured resin layer is stacked on the surface of the adhesive layer located on the opposite side to the polarizer. The adhesive layer has a thickness in the range of 0.1 μm to 10 μm. The cured resin layer is formed of a solventless photocurable composition containing component (A) and component (B), with component (A) being at least one of a polyfunctional acrylic monomer and a polyfunctional methacrylic monomer and component (B) being a photocurable prepolymer.

A coating composition including a copolymerization product of a mixture of monomers including one or more carbamate-functional monomers and (meth)acrylic monomers, some having carboxylic acid-functionality. The monomer mixture is essentially free of hydroxyl monomers. The coating composition may be a solvent-borne clearcoat coating composition, preferably an automotive clearcoat coating composition, that may be applied over a water-borne basecoat coating composition.

Provided is an inkjet ink comprising at least water, a pigment, a resin, a water-soluble organic solvent, and a surfactant, wherein the resin comprises a copolymer resin synthesized from a monomer that includes a (meth)acrylic monomer, and the copolymer resin has an acid value of not less than 50 mgKOH/g and not more than 200 mgKOH/g, a glass transition temperature (Tg) not less than 20 and not more than 100° C., and a weight-average molecular weight (Mw) not less than 20,000 and not more than 100,000, and as a result, a high-quality image is formed in that abrasion resistance and adhesiveness on a non-absorptive recording medium are high, glossiness is high, and there is no ink mixing, and ejection performance is good and recovery through maintenance is excellent. Also provided is an inkjet recording method that uses the same.

The present invention relates to a siliconized hybrid latex that consists of a polysiloxane methacrylic copolymer of the formula (I), starting with at least one methacrylic monomer that is partially soluble in water, and at least one functionalised silicone-based macromonomer that is insoluble in water and highly hydrophobic, and to the use of said latex in a water-based formula, free of fluorinated compounds, generating highly hydrophobic or superhydrophobic surfaces with self- or easy-cleaning properties.

Disclosed is an adhesive sheet for protecting a glass, which is excellent in weather resistance, adhesion reliability, transparency and impact resistance. Also disclosed is a protective film for an automotive glass, which is prepared using the adhesive sheet. The adhesive sheet comprises an adhesive layer and a substrate, wherein the adhesive layer comprises an adhesive composition containing, as a base polymer, a (meth)acrylic polymer comprising the following components (A) to (C) as monomer units: (A) 40 to 99.9% by weight of 2-ethylhexyl(meth)acrylate; (B) 0.1 to 10% by weight of a (meth)acrylic monomer having a functional group; and (C) 0 to 59.9% by weight of a vinyl monomer which can be copolymerized with the component (A) and/or (B), and wherein the substrate has a trilaminar structure composed of a propylene layer, a polyethylene layer and a polypropylene layer.

It is an object to provide an acrylic resin composition dispersed in water. The composition has excellent appearance and sufficient dispersion stability, is stable even in one-package composition, exhibits physical properties of coating film excellent in water resistance, solvent resistance and weathering resistance, and sufficiently deals with recent environmental issues. It is also an object of the present invention to provide a coating film formed using such an acrylic resin composition dispersed in water. It is also an object of the present invention to provide a coating film formed using such an acrylic resin composition dispersed in water. The acrylic resin composition dispersed in water is an one-package composition obtained by combining a polymer comprising a monomer unit containing an aliphatic hydrocarbon group having 8 to 24 carbon atoms and a (meth)acrylic acid monomer unit, an oxazoline compound having two or more oxazoline rings and a specific amine compound.