641 results about "GLYCIDYL ACRYLATE" patented technology

The invention relates to novel crosslinkable copolymers which are obtainable by (a) copolymerizing at least two different hydrophilic monomers selected from the group consisting of N,N-dimethyl acrylamide (DMA), 2-hydroxyethyl acrylate (HEA), glycidyl methacrylate (GMA), N-vinylpyrrolidone (NVP), acrylic acid (AA) and a C1-C4-alkoxy polyethylene glycol (meth)acrylate having a weight average molecular weight of from 200 to 1500, and at least one crosslinker comprising two or more ethylenically unsaturated double bonds in the presence of a chain transfer agent having a functional group; and (b) reacting one or more functional groups of the resulting copolymer with an organic compound having an ethylenically unsaturated group.

The present invention provides a dicing / die bonding sheet which can be used as a dicing tape during dicing, enables ready separation of the semiconductor element and the adhesive layer from the pressure-sensitive adhesive layer during pickup, and in which the adhesive layer has satisfactory adhesiveness as a die bonding material. A dicing / die bonding sheet in which the pressure-sensitive adhesive layer comprises a compound (A), containing intramolecular, radiation curable carbon-carbon double bonds with an iodine value of 0.5 to 20, and at least one compound (B) selected from a group consisting of polyisocyanates, melamine-formaldehyde resins, and epoxy resins, and the adhesive layer comprises an epoxy resin (a), a phenolic resin (b) with a hydroxyl equivalent of at least 150 g / eq., an epoxy group-containing acrylic copolymer (c), comprising from 0.5 to 6% by weight of glycidyl acrylate or glycidyl methacrylate, and with a weight average molecular weight of at least 100,000, a filler (d), and a curing accelerator (e).

The invention relates to a method for preparing an environment-friendly silicone-modified acrylate adhesive. Raw materials of the preparation method comprise a basic monomer, a modified monomer and an auxiliary agent, wherein the basic monomer comprises a hard monomer, a soft monomer and a crosslinking monomer; the modified monomer comprises a silane monomer, a coupling agent and inorganic nano-powder; the crosslinking monomer is glycidyl acrylate or glycidyl methacrylate; and the grain diameter of the inorganic nano-powder is less than 80 nanometers. In the preparation method, the crosslinking monomer adopts the glycidyl acrylate or the glycidyl methacrylate so as to be environment-friendly. The product prepared by the method is a nanometer / silicone double-modified molecular composite polymer material. The molecular composite material is combined with the advantages of two polymer materials, namely silicone and polyacrylic ester and an inorganic nanometer material, and has better performance and broad application.

An adhesive which comprises (1) 100 parts by weight of an epoxy resin and a hardener therefor, (2) 75 to 300 parts by weight of an epoxidized acrylic copolymer having a glycidyl (meth)acrylate unit content of 0.5 to 6 wt. %, a glass transition temperature of -10° C. or higher and a weight average molecular weight of 100,000 or more and (3) 0.1 to 20 parts by weight of a latent curing accelerator; an adhesive member having a layer of the adhesive; an interconnecting substrate for semiconductor mounting having the adhesive member; and a semiconductor device containing the same.

The invention discloses a polymer microsphere and preparation method thereof. The microsphere comprises a core and surface graft; wherein the core is monodispersed polystyrene-divinyl benzene microsphere with crosslinking degree of 60-90% and grain diameter of 2-20 microns, and the surface graft is polyglycidyl methacrylate or derivate thereof. Friedel-Crafts acylation is utilized, alpha-halogenacyllhalide is taken as acylation agent, initiator molecule is bonded on the surface of the microsphere; conventional atom transfer radical polymerization method is utilized to initiate monomers glycidyl methacrylate to condense; then different nucleopilic reagent is utilized for opening ring, and amino, hydroxyl, hydrazine, carboxyl and sulfydryl groups are introduced onto the surface of the microsphere. The polymer microsphere can be used as separation material for different chromatographs for high efficiency ion exchange, chelation and high efficiency affiliation, also can be used as carrier for fixing enzyme and catalyst and is an excellent functional microsphere.

Injection molded articles and process of forming the same are described herein. The processes generally include providing a polyolefin including one or more propylene heterophasic copolymers, the polyolefin having an ethylene content of at least 10 wt. % based on the total weight of the polyolefin; contacting the polyolefin with a polylactic acid and a reactive modifier to form a compatiblized polymeric blend, wherein the reactive modifier is produced by contacting a polypropylene, a multifunctional acrylate comonomer, and an initiator under conditions suitable for the formation of a glycidyl methacrylate grafted polypropylene (PP-g-GMA) having a grafting yield in a range from 1 wt. % to 15 wt. %; and injection molding the compatibilized polymeric blend into an article.

A pigment dispersant is disclosed comprising a tri-block copolymer having a first block comprising a glycidyl (meth)acrylate reacted with a napthoic acid, a second block comprising (meth)acrylic acid alkyl esters, and a third block comprising (meth)acrylic acid alkyl esters, wherein said third block is different from said second block. The dispersant is suited for use in a nanoparticulate dispersion comprising pigment particles having an average primary particle size of less than 100 nm.

An encapsulant composition containing about 15 to about 50 wt % of an ethylene / ethyl acrylate / maleic anhydride copolymer containing about 20 to about 40 wt % of an ethylene / glycidyl (meth)acrylate copolymer; about 2 to about 30 wt % of an ethylene / butyl acrylate / maleic anhydride copolymer; about 5 to about 50 wt % of polyethylene, about 0.05 to about 5 wt % of an adhesion promoter; and optionally about 0.01 to about 2 wt % of at least one additive. The composition is useful for encapsulating thin film devices. The disclosure also relates to a method of encapsulating thin film devices with the composition and to devices produced by the method.

Disclosed are a photocurable composition which is developable with an aqueous alkaline solution and such calcined patterns as a conductor pattern, a vitreous dielectric pattern, and a fluorescent pattern which are obtained by the use of the photocurable composition. The photocurable composition comprises (A) an alkali-soluble macromolecular binder having a weight-average molecular weight in the range of 5,000 to 100,000 and an acid value in the range of 50 to 150 mg KOH / g and obtained by causing (c) an organic acid possessing one carboxyl group and no ethylenically unsaturated bond in its molecule to react with the glycidyl group of a copolymer of (a) a compound possessing an ethylenically unsaturated bond and possessing neither hydroxyl group nor acidic group and (b) glycidyl (meth)acrylate and then causing (d) a polybasic acid anhydride to react with the resultant secondary hydroxyl group, (B) an inorganic powder, (C) a photopolymerizable monomer, (D) a photopolymerization initiator, and (E) an organic solvent. The composition may be in the form of paste or in the form of a dry film. When the photocurable composition is in the form of paste, the paste is applied to a substrate and then dried to form a film. When the photocurable composition is in the form of a dry film, the film is laminated on the substrate. A calcined pattern of high fineness is obtained by patterning the superposed layer of the composition by selective exposure to light and development, and thereafter calcining the patterned film.

The invention relates to a modification compatibilizer of PPO / PA (Poly-p-phenylene oxide / polyacrylate) alloy and a PPO / PA alloy. The compatibilizer is characterized by being a grafted copolymer of polyphenyl ether, glycidyl methacrylate and styrene; and the PPO / PA alloy with the compatibilizer is characterized by comprising the following components in percentage by weight: 50-59.5% of polyphenyl ether, 31.5-40.4% of nylon, 0.1-18% of the compatibilizer and 0.1-0.5% of antioxidant. Compared with the prior art, the prescription of the compatibilizer matching with the PPO / PA disclosed by the invention can be used for greatly improving the compatibility of the PPO / PA alloy and improving the mechanical property and water resisting property of the PPO / PA alloy and is in good condition of industrial application.

The invention relates to a water-repellent, oil-repellent, sun-proof, anti-bend torsion and cold-resistant matt-leather-membrane aqueous coating adhesive for textiles and a preparation method of the matt-leather-membrane aqueous coating adhesive. The preparation method comprises the steps of emulsifying isooctyl acrylate, isobornyl methacrylate, glycidyl methacrylate, trifluoroethyl methacrylate, vinyl trimethoxysilane, hydroxypropyl acrylate, fatty alcohol ethoxylate XL90 and dodecyl benzene sulfonate to trigger polymerization, and compounding a thickening agent, namely an associated polyurethane flatting rheological agent, a cross-linking agent, namely terminated isocyanate, a flatting agent, namely polymethyl urea resin and silicon dioxide with the particle size of 2-7 microns, so as to obtain the matt-leather-membrane aqueous coating adhesive.

The invention relates to the field of biodegradable materials, in particular to a biodegradable material and a preparation method and application thereof. The biodegradable material at least comprises the following components in parts by weight: 100 parts of a carrier, 10-50 parts of a bio-based material, 5-20 parts of a compatilizer, 1-12 parts of a photodegradation agent, 5-20 parts of a filler and 0.01-5 parts of an aid, wherein the carrier is polyolefin resin; the bio-based material is any one or more of starch and natural plant fibers; the compatilizer is a mixture of glycidyl methacrylate and modified cyclodextrin, wherein the mass ratio of glycidyl methacrylate to modified cyclodextrin is 1:(0.1-1); the photodegradation agent is any one or more of anatase TiO2, a benzophenone compound, a transition metal compound or complex and rare earth carboxylate; and the aid is any one or more of an initiator, a plasticizer, a slipping agent, a dispersant and styrene.

The modified chlorinated polypropylene adhesive consists of chlorinated polypropylene 100 weight portions, glycidol acrylate 0.05-0.2 weight portions, additive 0.05-0.4 weight portions, initiator 0.1-0.5 weight portions, and tackifier 5-15 weight portions. The chlorinated polypropylene has chlorine content of 25-45 wt%; the additive is styrene, dimethyl acetamide or dimethyl sulfoxide; the initiator is bibenzoyl peroxide or diisopropyl benzene peroxide; and the tackifier is petroleum resin, rosin ester or terpene. The adhesive is ropy, and may be painted or extruded into film of 0.1-0.5 mm thickness when used. It has excellent adhering performance on metal, non-polar polymer, etc. and may be used widely.

An acrylic pressure-sensitive adhesive composition according to the present invention comprises: acrylic copolymer (A) formed by copolymerizing i) alkyl (meth) acrylic acid ester monomer wherein the carbon atom of alkyl group is 2 to 14, ii) monomer having a functional group capable of crosslinking, iii) methyl (meth)acrylate monomer, iv) vinyl acetate monomer, v) glycidyl (meth)acrylate, and vi) crosslinking agent having 5 to 15 of alkyleneoxide groups and at least two acrylate group or vinyl group; and flame retardant (B). The acrylic pressure-sensitive adhesive composition improves the adhesive property and the dispersion of the flame retardant by controlling the crosslinking structure of the acrylic copolymer, such that a surface finishing material comprising the same can have the excellent adhesion and fireproof.

The invention discloses a laminated film which comprises (a) a base layer and (b) a bonding layer on a main surface of the base layer, wherein the bonding layer is selected from (i) ethylene-(methyl) acrylic acid C1-4 alkyl ester copolymer, and ethylene-(methyl) acrylic acid copolymer or ethylene-maleic anhydride copolymer; (ii) multi-copolymer formed by ethylene and at least two comonomers selected from (methyl) acrylic acid C1-4 alkyl ester copolymer and the ethylene-(methyl) acrylic acid copolymer or the ethylene-maleic anhydride copolymer; (iii) copolymer containing glycidyl methacrylate formed by the ethylene, the glycidyl methacrylate and at least one comonomer selected from the (methyl) acrylic acid C1-4 alkyl ester copolymer, the ethylene-(methyl) acrylic acid copolymer or the ethylene-maleic anhydride copolymer; or (iv) blend of two or more of the copolymers, wherein the bonding layer is directly placed on the base plate or a base coating with the thickness of less than 0.99 mu m is arranged between the base layer and the bonding layer.

The invention discloses a decomposable crosslinking polyethylene imine and making method and application under physiological condition, which is characterized by the following: adopting one or more composition of glycidyl ester of each kind diacid, acroleic acid / methacrylic acid glycidyl ester or polyol or polyatomic condensed alcohol / polybasic ester of methyl acroleic acid as crosslinking agent; crosslinking with linear or branched polyethylene imine to form non-virus gene infection-transmitting carrier for each cell and biological tissue.

The invention relates to a preparation method for a high-flux high-intensity polyvinylidene fluoride hollow fibrous membrane. In the method, 0.6 to 1.5 million daltons of polyvinylidene fluoride raw materials with super high molecular weight are chemically treated to lead the materials to form active groups and then are acted with hydrophilic compounds like glycidyl methacrylate or acrylic acid, and the like, to form a hydrophilic polyvinylidene fluoride raw material; the hydrophilic polyvinylidene fluoride material is mixed with a solvent and a pore-foaming agent according to a certain proportion to form membrane preparing liquid; then the membrane preparing liquid is woven into a uniformly distributed pollution-resistant polyvinylidene fluoride hollow fibrous membrane with high intensity, small aperture and high water flux by a phase inversion technique. The pollution-resistant polyvinylidene fluoride hollow fibrous membrane can be used for the fields like water processing, medicines, food, and industry by the forms of hyperfiltration, continuous micro-filter or membrane bioreactor according to the size of the millipore thereof.

The invention provides a low-luster PC / PBT (polycarbonate / polybutylene terephthalate) alloy material which comprises the following components in percentage by weight: 60-72% of PC, 12-18% of PBT, 2-8% of main toughener, 1-4% of auxiliary toughener, 2-7% of flatting agent and 6-15% of other assistants. The main toughener is an ethylene-butyl methacrylate-glycidyl acrylate multipolymer, and the auxiliary toughener is a methyl methacrylate-butadiene-styrene impact modifier in a core-shell structure. The invention also provides a preparation method of the low-luster PC / PBT alloy composite material. The low-luster PC / PBT alloy material has the advantages of excellent comprehensive properties, favorable low-temperature-resistant effect and favorable matte effect, and can be used on automobile internal decorations, satellite receiving antenna and satellite signal receiver shells, and other devices in need of matting.

The invention relates to a method for preparing a polyacrylic ester / nanoSiO2 coating printing adhesive by using a Pickering emulsion polymerization method. During preparation of a polyacrylic acid emulsion, the problems of poor washing fastness and poor wet rubbing fastness are caused by adding a surfactant. The method comprises the following steps: mixing and stirring nanoSiO2 sol with water, and dropwise adding methyl methacrylate, glycidyl methacrylate, butyl acrylate and acrylic acid; and raising the temperature, adding an ammonium persulfate solution, preserving heat for reacting, naturally cooling a reaction product, filtering the cooled reaction product, and discharging the filtered reaction product. The polyacrylic ester / nanoSiO2 coating printing adhesive is prepared by taking the nanoSiO2 sol, an acrylic acid monomer and the glycidyl methacrylate as raw materials through Pickering emulsion polymerization. The method has the advantages of simple process, avoidance of the use of the surfactant and environmental friendliness. Meanwhile, nanoparticles are introduced, so that a film is prevented from sticking at a high temperature.

This invention relates to glycidyl (meth)acrylate based powder coating resins that contain side chains derived from polycaprolactone, powder coatings comprising these resins, and coatings produced from the powder coating compositions. The coatings may be clear coats. The glycidyl (meth)acrylate based powder coating resins of the present invention comprise (a) a glycidyl (meth)acrylate monomer, (b) a caprolactone (meth)acrylate monomer, and optionally (c) an ethylenically unsaturated monomer other than the monomers of (a) or (b).

The invention relates to electronic materials and preparation, and aims to provide a halogen-free flame-retardant solvent-free double-curing ink composition and a preparation method thereof. The composition comprises the following components: low-viscosity epoxy resin, epoxy resin containing phosphorus or nitrogen, glycidyl acrylate reactive diluent, partially-esterified phenolic epoxy acrylate, imidazole curing agent, free radical polymerizing initiator, halogen-free flame retardant, inorganic filler and additives. The preparation method comprises the following steps of: mixing, dispersing and grinding the raw materials until the viscosity reaches 40 to 50 Pa.s per 25 DEG C, dispersing and uniformly agitating the raw materials after the grinding is stopped, and finally filtering, filling and packaging the raw materials. The halogen-free flame-retardant solvent-free double-curing ink composition has the advantages that the possibility of fire hazards caused by ink introduction when a hole is blocked can be reduced by virtue of halogen-free and flame-retardant performance; with adoption of a double-curing technology with free radical polymerizing and epoxide ring-opening addition polymerization, the halogen-free flame-retardant solvent-free double-curing ink composition has a high curing degree, a high temperature in thermal deformation, a low expansion coefficient, low water absorption and high heat resistance; the viscosity of the ink is easy to adjust, and thus the requirements on the use of the ink in different seasons can be ensured; and the curing material is moderate in rigidity and has the characteristic of grindability.

The invention relates to a method for preparing superparamagnetic microspheres with a surfactant-based nuclear shell, which comprises the following steps of: preparing monodispersed polyglycidyl methacrylate microspheres by a free radical polymerization of monomeric polyglycidyl methacrylate in the presence of an initiator and an emulsifying agent or a dispersing agent; preparing monodispersed porous polyglycidyl methacrylate microspheres with larger size by a one-step seed swelling polymerization; adding divalent and trivalent iron to stir, raising the temperature of the system, adding excessive concentrated ammonia water, and preparing monodispersed superparamagnetic microspheres in situ by an iron salt deposition and an alkaline coprecipitation method; the magnetic microspheres are subjected to surface carboxylic acid modification by distillation precipitation polymerization. The superparamagnetic microspheres with the surfactant-based nuclear shell have the advantages of good mono-dispersity, controllable magnetic content and the like, the microspheres have abundant carboxylic acid groups on the surface, and after a subsequent binding to biological ligands, and can be widely applied to the fields of biomedical analysis and detection, such as immobilized enzyme and cell separation, protein purification, immunoassay, and the like.

A coating powder, based on glycidyl (meth)acrylate copolymer / carboxylic acid functional polyester chemistry, provides a smooth, weatherable, reduced gloss coating for use on heat sensitive substrates, such as wood. The glycidyl (meth)acrylate copolymer has an epoxy equivalent weight of 250 to 400 and the carboxylic acid functional polyester has a viscosity of 2500 cps or less at 200 C.

The invention relates to a method for preparing modified loess with high adsorption performance. The method comprises the following steps of: (1) after stirring loess, distilled water and acrylic acid uniformly under room temperature, dropwise adding a NaOH solution with neutralization being 40-90% for neutralization to obtain a neutralization solution; (2) then adding hydroxyethyl methacrylate to the neutralization solution and stirring the materials uniformly to obtain mixed liquor; and (3) adding a crosslinking agent glycidyl methacrylate to the mixed liquor, heating the materials to 40-90 DEG C after introducing inert gases, finally adding an initiator ammonium persulfate, stirring the materials for 20-120 minutes when raising the temperature to 50-95 DEG C, thus generating a composite, and washing and drying the composite to a constant weight, thus obtaining the loess-based polymer composite adsorbent. The method has the following advantages that the natural loess is used as the raw material and is modified by acrylic acid and hydroxyethyl methacrylate to obtain the loess-based polymer composite adsorbent; and the loess-based polymer composite adsorbent is applied to treatment of wastewater containing heavy metal ions and dyes and has the characteristics of strong absorbability and large adsorption capacity.

Belonging to the technical field of synthetic resin materials, the invention provides a fatty acid modified acrylic emulsion and a preparation method thereof. The fatty acid modified acrylic emulsioncomprises the following components by mass: 25-35 parts of fatty acid modified glycidyl methacrylate or fatty acid modified glycidyl acrylate, 2-6 parts of a first emulsifier, 0.5-3.5 parts of a second emulsifier, 12-18 parts of a first soft monomer, 1-8 parts of a second soft monomer, 40-50 parts of a first hard monomer, 3-9 parts of a second hard monomer, 0-15 parts of functional monomer, 0.5-2parts of a chain transfer agent, 0.1-0.5 part of an initiator, 0.1-1 part of a buffer agent and 150-180 parts of water. The fatty acid modified acrylic emulsion provided by the invention has the advantages of fast drying speed, high coating film gloss, excellent adhesion and good water resistance, and the preparation process uses renewable energy with abundant sources.

The invention discloses a preparation method of a strawberry-like thermochromic energy storage material, comprising the steps of (1) mixing styrene, divinyl benzene, acrylic acid, glycidyl methacrylate, polyvinylpyrrolidone and paraffin, adding an emulsifier and an initiator, cooling, and centrifuging to obtain pure phase-change microspheres; (2) mixing a leuco body dye, an electronic acceptor compound and a solvent to form a mixture, heating the mixture, mixing well to obtain a solution, adding deionized water, tetraethyl orthosilicate, a silane coupling agent and an emulsifier, adding ammonia water under ultrasound to allow reacting, centrifuging, drying at low temperature to obtain thermochromic silicon capsule particles; (3) mixing the phase-change microspheres and the thermochromic silicon capsule particles to obtain a mixture, adding an emulsifier and a catalyst to allow reacting, centrifuging, and drying to obtain the strawberry-like thermochromic energy storage material. The strawberry-like thermochromic energy storage material has the advantages of high enthalpy, high thermosensitive response speed, irreversible color variation, cyclic repetitive color variation, good property stability and the like, can act as a novel intelligent material, and has a good application prospect in the fields, such as building, energy conservation, environmental protection, apparel, and medical services.

The invention provides a thermosetting compositions, a harden film, a color filter, a liquid crystal displaying element, a solid camera shooting element and a light emitting diode illuminant. The thermosetting composition contains polyester amide acid, epoxy group polymer, an epoxy compound and an epoxy hardening agent. The thermosetting composition is characterized in that the polyester amide acid is obtained by the reaction of the compounds comprising the tetracarboxylic dianhydride, the diamidogen and the multiple hydroxyl compounds; and the epoxy group polymer is obtained by the reaction of raw material components with methyl glycidyl acry late and two-function (methyl) acrylic ester. The thermosetting composition has excellent coating property; the harden film formed by the thermosetting composition has excellent light resistance and flatness, thermal resistance, resistance of solvent, acid and alkali, resistance of water, great sealing property for glass, transparency and scratch resistance.

The invention provides an electrostatic flocking adhesive for a high fastness carpet and a preparation method thereof. The raw materials comprise, by weight, 3.5-4.3 parts of a reactive anionic emulsifier, 25-27 parts of a reactive nonionic emulsifier, 3.9-4.1 parts of methacrylic acid polyether phosphate ester, 0.9-1.2 parts of itaconic acid, 4.9-5.1 parts of N-hydroxymethyl acrylamide, 0.9-1.2 parts of acrylamide, 1.5-2 parts of methacrylamide ethyl ethylene urea, 3.9-4.1 parts of methacrylic acid, 2.4-2.6 parts of hydroxyethyl methylacrylate, 3.9-4.1 parts of glycidyl methacrylate, 180-185 parts of n-butyl acrylate, 50-53 parts of acrylonitrile, 47-50 parts of methyl methacrylate, 1-1.1 parts of ammonium persulfate, 0.5-0.55 part of sodium bisulfite, and 258-272 parts of deionized water; a polymer emulsion formed by the seeded emulsion polymerization is supplemented with water solution containing 24-25 parts of ammonium polyphosphate and mixed to prepare the electrostatic flocking adhesive for high fastness carpet, wherein the adhesive has good wear resistance, moisture resistance and flame resistance.

The invention discloses fluorosilicone modified acrylic resin as well as a preparation method and an application thereof. The fluorine-silicon modified acrylic resin is prepared from the following components: methacrylate monomers, fluorine-containing acrylate monomers, acrylate-based silicone oil, allyl silicone oil, a polymerized active silane coupling agent, methacrylic acid, hydroxyl-containing active crosslinking monomers, glycidyl methacrylate, trimethylolpropane trimethacrylate, an initiator, a chain transfer agent and a solvent. The fluorine-containing acrylate monomer is composed of aC2-C3 short-chain fluorine-containing alkyl acrylate monomer and a C10-C12 long-chain fluorine-containing alkyl acrylate monomer. The fluorine-silicon modified acrylic resin prepared by the inventionhas the characteristic of high low viscosity, is convenient to construct and use, and reduces the generation of VOC. The coating prepared from the modified acrylic resin has the characteristics of high impact-resistant self-repairing function, icing prevention, low surface energy, hydrophobicity, oleophobicity, stain resistance, high and low temperature resistance and the like.