253 results about "Double bond" patented technology

The invention relates to an improved process for the manufacture of a fluorinated organic compound, wherein the process comprises a fluorination reaction of an organic precursor compound having at least one chlorine substituent and / or at least one double bond, and said organic precursor compound is reacted in liquid phase in HF (hydrogen fluoride) serving as solvent and fluorinating agent in the presence of a fluorinating catalyst, and wherein the fluorination reaction is performed in liquid phase in a SiC block chemical reactor, and wherein the reaction mixture is withdrawn from SiC block chemical reactor, and wherein the process comprises optionally isolating and / or purifying the targeted fluorinated organic compound.

This invention discloses an environmentally friendly flame-retardant vinyl resin and its preparation method. The steps include: introducing phosphorus element by ring-opening modification of epoxy resin with phosphoric acid; adding a silane coupling agent to graft double bonds and constructing a Si-O-Si inorganic network in situ; and completely replacing styrene with a self-made reactive phosphorus-silicon synergistic flame-retardant diluent. This application constructs a phosphorus-silicon inherently flame-retardant system through molecular structure design, forming an organic-inorganic interpenetrating network structure. Without adding halogen flame retardants or emitting volatile organic compounds, the flame-retardant properties, mechanical strength, and thermal stability of the resin are improved. The phosphorus element and the inorganic network produce a gas-condensate synergistic effect, giving the cured product a high heat distortion temperature and low smoke emission, meeting the needs of high-end applications.

A resin composition includes 100 parts by weight of an unsaturated C═C double bond-containing polyphenylene ether resin; 5 parts by weight to 100 parts by weight of a compound of Formula (1), a compound of Formula (2), an oligomer of the compound of Formula (1), an oligomer of the compound of Formula (2) or a combination thereof; and 5 parts by weight to 100 parts by weight of a benzocyclobutene-modified polyolefin. Moreover, also provided is an article made from the resin composition, including a prepreg, a resin film, a laminate or a printed circuit board, and improvements in various properties can be achieved including post-plating copper foil peeling strength uniformity, Z-axis coefficient of thermal expansion and storage modulus variation rate.

The application relates to the field of photoetching technology, in particular to a modified phenolic resin and a preparation method and application thereof. The modified phenolic resin is prepared from the following raw materials: linear phenolic resin oligomer, phenolic substance containing a reactive double bond and phenyl phosphinic dichloride; the linear phenolic resin oligomer has the following general formula: wherein n is an integer between 1 and 5. The linear phenolic resin oligomer containing carboxyl groups is subjected to polycondensation with the phenolic substance containing a reactive double bond through the phenyl phosphinic dichloride to obtain the modified phenolic resin; the resin structure contains polar groups such as carboxyl groups and phosphorus-oxygen groups, thereby significantly enhancing the adhesion to a photoetching substrate; meanwhile, the resin has good compatibility with quantum dots, and high-resolution quantum dot photoetching patterning can be realized.

This invention relates to the field of vinyl copolymers, and discloses a crosslinked copolymer microsphere and its preparation method, a crosslinkable polyethylene composition, crosslinked polyethylene, and its applications. The crosslinked copolymer microsphere comprises structural unit A and structural unit B; wherein structural unit A has the structure shown in formula (1), and structural unit B is derived from a crosslinking agent; based on the total mass of the crosslinked copolymer microsphere, the content of structural unit A is 80-95 wt%, and the content of structural unit B is 5-20 wt%; formula (1). This copolymer microsphere contains polar structural units and crosslinked structural units, and has high electron affinity and surface double bond content.

Provided are abrasive grains and a composition for chemical mechanical polishing which are for selectively polishing a silicon nitride film, and which are applicable not only to silicon oxide films but also to amorphous silicon films and polysilicon films. This method for manufacturing abrasive grains includes: a first step of heating a mixture which contains particles having a sulfanyl group (—SH) fixed to the surface thereof via covalent bonds, and which contains a compound having carbon-carbon unsaturated double bonds; and a second step, which is performed after the first step, of further adding a peroxide and carrying out heating.

This invention discloses a flame-retardant and anti-aging cable composite material and its preparation method, belonging to the field of cable material preparation technology. In this invention, a flame-retardant, high-temperature resistant polysiloxane containing double bonds, an anti-aging agent, and a flame-retardant filler are prepared and blended with raw materials such as EVA and low-density polyethylene. Irradiation causes cross-linking between the materials, endowing the composite material with heat resistance, aging resistance, and good mechanical properties. The anti-aging agent of this invention includes siloxane groups and benzophenone groups, possessing good resistance to both UV aging and heat aging, which is beneficial for further improving the anti-aging performance of the prepared cable composite material. The flame-retardant filler of this invention has urethane bonds grafted onto its surface, which matches the polarity of the EVA vinyl acetate segments, improving the compatibility between the flame-retardant filler and EVA, and further enhancing the flame retardancy of the prepared composite cable material.

The present invention relates to an alkaline composition for cleaning a substrate comprising i) copper or a copper alloy and ii) cobalt or a cobalt alloy, the composition comprising: a) at least one pH adjuster selected from compounds of formula I 【Chemical 1】 TIFF2026524618000015.tif3368(where Ra, Rb, Rd and Rf are each independently selected from unsubstituted linear or branched C1-C 12 alkyl, Re is selected from unsubstituted linear or branched C4-C9 alkyl; provided that the dashed bond between Re and N is a single bond or a double bond, and when the dashed bond is a double bond, Rd does not exist, Ra, Rb, Re and Rf are joined to form one or more 6-membered or 7-membered rings), b) at least one complexing agent selected from C2-C 12 hydrocarbons having at least two sulfonic acid groups or carboxylic acid groups, c) at least one polymeric dispersant having a mass average molecular weight of 1000 g / mol or more; and d) a solvent containing water and comprising.

This application provides a planarization composition, its preparation method, application, planarization process, and electronic device. The planarization composition includes cerium oxide, an additive, and a solvent. The additive has the following structural formula: [Formula omitted for brevity]. R1 is selected from a carboxyl or carboxylate group, and at least one of R2, R3, R4, R5, and R6 is selected from a carboxyl, carboxylate, or ester group, representing a single or double bond. When a double bond is represented, R6 is absent. This planarization composition exhibits rapid planarization speed and a high selectivity ratio for planarization speed between silicon oxide and silicon nitride, which is advantageous for its use in electronic device fabrication, such as in the manufacture of industrial automatic control system devices, and especially in the fabrication of semiconductor devices.

The application relates to the field of sealing rings and discloses a silicon rubber sealing ring for capacitors and a preparation method thereof, which comprises the following components: silicon rubber, modified multi-walled carbon nanotubes, hyperbranched triazine-based additives, vulcanizing agents and lubricants; the modified multi-walled carbon nanotubes are prepared by modifying multi-walled carbon nanotubes after introducing double bonds into a benzotriazole intermediate and glycidyl methacrylate in a hydrogen-containing silicone oil molecular chain through a silicon hydrogen addition reaction; the benzotriazole intermediate is prepared by substitution between 2-(2,4-dihydroxyphenyl)-2H-benzotriazole and acryloyl chloride; the hyperbranched triazine-based additives are prepared by nucleophilic substitution reaction with a diamino phosphorus antioxidant prepared by reaction between phenylphosphoryl dichloride and p-phenylenediamine and cyanuric chloride as a monomer; the application is provided with good mechanical properties, antistatic properties, flame retardant properties and aging resistance by adding the modified multi-walled carbon nanotubes and the hyperbranched triazine-based additives.

The object of the present invention is to provide a resin composition that is heat-curable or photocurable, alkali-soluble, has a low dielectric constant and dielectric loss tangent of the cured product, and exhibits high adhesion and glass transition temperature, as well as excellent insulation reliability. [Solution] A resin composition is used that contains a compound represented by the following formula (1) and a compound containing one or more epoxy groups in one molecule. TIFF2026103975000012.tif29170 (In formula (1), each X independently represents a residue of an aromatic or aliphatic tetracarboxylic anhydride with the carboxyl group removed. Y represents a divalent residue of a diol with the hydroxyl group removed. Each Z independently represents a residue of a functional group containing a radically polymerizable double bond. n is the average number of repeating units and is a real number between 0.1 and 20.)

The method for forming an electrode according to an exemplary embodiment includes a shielding pattern formation process, a loading process, and a conductive layer formation process. In the shielding pattern formation process, a shielding pattern is formed on a surface of a substrate using a shielding material to expose a localized area of ​​that surface. The shielding material is a polymer comprising ends having at least one bond structure having covalent and double bonds. In the loading process, the substrate on which the shielding pattern is formed is loaded into a chamber. In the conductive layer formation process, a copper-containing source material and a reactive material reacting with the source material are alternately sprayed into the chamber using atomic layer deposition to form a copper-containing conductive layer on the exposed surface of the substrate. Therefore, according to the method for forming an electrode according to the exemplary embodiment, a thin film made of the material used to form the electrode is not formed on the surface of the shielding pattern. No residue is left when the shielding pattern is removed, preventing defects caused by residue.

This invention discloses a high-toughness, low-dielectric bismaleimide resin composition, a modified bismaleimide resin, its preparation method, and its applications. The bismaleimide resin composition comprises bismaleimide resin, an allyl compound, and a liquid rubber, wherein the liquid rubber contains end-capping groups capable of reacting with double bonds. This invention primarily addresses the problems of high dielectric constant, poor toughness, and poor interlaminar shear strength in existing bismaleimide resins. In this invention, the dielectric properties and toughness are improved by reacting the end-capping groups in the liquid rubber with the bismaleimide resin, while maintaining the mechanical properties and heat resistance essentially unchanged.

This invention discloses a film material and its preparation method for coating and heat transfer in a vacuum environment, belonging to the field of polymer materials. It includes a compliant layer, a support layer, and a compatibilizer. The compliant phase material is a polymer material with an elongation at break ≥200% and containing double bonds or aromatic rings; the support phase material is a polymer material with a tensile strength ≥40MPa and containing reactive polar functional groups; the compatibilizer is a material containing double bonds or aromatic rings in a single molecule and simultaneously containing reactive polar functional groups. This film material has excellent tensile strength and elongation at break, ensuring the integrity and non-deformation of the heat transfer pattern. Furthermore, the film does not burst or crack during the heat transfer process and exhibits good adaptability to curved surfaces. By adjusting the types and proportions of the compliant phase, support phase, and compatibilizer, the performance of the base film can be controllably adjusted, making it applicable to various heat transfer surface decoration scenarios such as toys, daily necessities, and small handicrafts.

A method for preparing aryl-substituted alcohols, belonging to the field of organic synthesis. This invention solves the problem that existing visible light photocatalytic reactions for constructing carbon-carbon bonds by reversing the polarity of the C=O double bond require expensive and environmentally harmful metal photocatalysts. Method: Aromatic aldehydes, 4-cyanopyridine, tetrabromofluorescein, thiourea dioxide, potassium carbonate, and an organic solvent are mixed, followed by light irradiation. This invention is used for the preparation of aryl-substituted alcohols.

This invention belongs to the field of polymer material synthesis technology, specifically relating to a core-shell vinyl acetate emulsion for interior walls and its preparation method. Addressing the problems of insufficient scrub resistance and low efficiency in introducing functional monomers in existing vinyl acetate emulsions, the following solution is provided: A pre-emulsion A is obtained by emulsifying deionized water, a composite emulsifier, and a pH buffer with a core-layer mixed monomer mixture. The core-layer mixed monomer mixture includes vinyl acetate, vinyl tert-carbonate, C1-C4 alkyl esters of (meth)acrylate, a carboxylic acid functional monomer containing double bonds, diacetone acrylamide, and organosilicon-modified monomers. After seed emulsion preparation and core-layer polymerization, a shell-layer monomer mixture B (containing phosphate-based adhesion-promoting monomers, hydroxyalkyl esters, and vinyl acetate) is introduced for shell-layer polymerization. Post-treatment yields the emulsion. The emulsion possesses a hard core-functionalized soft shell structure, and the resulting interior wall coating can withstand over 8000 scrub cycles, far exceeding the national standard for superior products. Furthermore, the emulsion exhibits excellent storage stability.

This invention discloses a method for preparing high-performance wood wax oil, belonging to the field of coating technology. The raw materials used in this wood wax oil are soybean oleic acid, maleic anhydride, grafting catalyst, glycerol, phthalic anhydride, esterification catalyst, vanadium drier, zirconium drier, carnauba wax, and beeswax. Compared to wood wax oils based on tung oil and linseed oil, the wood wax oil of this invention uses soybean oleic acid as the main material, utilizing maleic anhydride to perform graft copolymerization at the α-position of the carbon-carbon double bond in soybean oleic acid, thereby increasing the iodine value of the resin system. Increased iodine value leads to increased crosslinking points, thus ensuring drying properties and improving the hardness, drying performance, and yellowing resistance of the wood wax oil; weather resistance is significantly improved, and drying time is accelerated; no heavy metal driers such as cobalt and manganese are added, making it environmentally friendly; the preparation process of the wood wax oil of this invention is simple and easy to operate, with low material costs.

One embodiment of the present invention relates to a graft-modified product, an adhesive, an olefin resin composition, or a laminate, and the graft-modified product is a graft-modified product of at least one base polymer selected from polyolefins by a carbodiimide monomer having a carbodiimide group and a polymerizable double bond.

This invention discloses an ethylene copolymer containing ethylene structural units derived from ethylene, α-olefin structural units derived from α-olefins, and conjugated diene structural units derived from conjugated dienes. The molar ratio of the ethylene structural units to the conjugated diene structural units is 2-10:1. Based on the total amount of the ethylene copolymer, the content of the conjugated diene structural units is 5-20 mol%. The ethylene copolymer also contains anti-1,4-structural units, which are structural units formed by 1,4-polymerization of the conjugated diene and possessing anti-1,4-double bonds. Based on the total amount of the conjugated diene structural units in the ethylene copolymer, the content of the anti-1,4-structural units is 10-50 mol%. The ethylene copolymer according to this invention exhibits good compatibility and co-vulcanization properties. The ethylene copolymer according to this invention has broad application prospects in the rubber industry, particularly in the field of automotive tire rubber.

This invention relates to an aqueous one-component thermosetting self-adhesive coating for thin-gauge silicon steel sheets and its preparation method. The aqueous one-component thermosetting self-adhesive coating for thin-gauge silicon steel sheets comprises the following components: modified epoxy resin, modified silica, additives, and deionized water. The modified epoxy resin is obtained by first blending polytetrahydrofuran glycol, sorbitol, and isophorone diisocyanate, and then reacting them with the epoxy resin. The modified silica is obtained by blending silica containing double bonds, isocyanate-modified acrylate monomers containing epoxy groups, and trimethylolpropane triacrylate. The modified epoxy resin of this invention introduces polyurethane and a network structure, which can improve insulation performance, compatibility, and heat resistance. The modified silica of this invention introduces urethane groups, epoxy groups, a network structure, and benzene rings, which can improve compatibility, adhesion, and heat resistance.

The present disclosure provides: particles with which a fluororesin can be finely dispersed in a matrix resin; a composition; a molded body; and a low-dielectric material. The present disclosure relates to particles containing: a fluororesin; a compound (I) that has a plurality of groups (A) and is represented by formula (I); and a compound (II) that is capable of reacting with the compound (I) (In the formula, R1 and R2 are the same or different, are each hydrogen or an organic group, and may bond to each other to form a ring structure; and the double line represented by a solid line and a broken line represents a single bond or a double bond.).

A resin composition contains a polyphenylene ether compound having a carbon-carbon unsaturated double bond at the terminal, a maleimide compound (A) having an indane structure in the molecule, and an inorganic filler.

The application provides a fluorine-free ester-based electrolyte, a preparation method and a high-voltage lithium ion battery. The fluorine-free ester-based electrolyte comprises a lithium salt, a fluorine-free solvent and a fluorine-free additive; the fluorine-free solvent is a methylated linear carbonate and / or a methylated linear carboxylate, and the fluorine-free additive is a cyclic boroxine or a cyclic siloxane with 3-5 carbon-carbon double bonds; the methylated linear carbonate has a general structural formula as shown in formula (1); wherein R1 and R2 are independently alkyl groups with 1-4 carbon atoms, and the carbon atom number of at least one of R1 and R2 is greater than or equal to 3; the methylated linear carboxylate has a general structural formula as shown in formula (2); wherein R3 is a hydrogen atom or an alkyl group with 1-4 carbon atoms, R4 is an alkyl group with 2-4 carbon atoms, and the carbon atom number of at least one of R3 and R4 is greater than or equal to 3. The fluorine-free ester-based electrolyte can significantly prolong the cycle life of the lithium ion battery.

This invention provides a method for preparing cyclic polyolefins, belonging to the technical field of preparing cyclic olefin polymers. The method includes: initiating ring-opening metathesis polymerization of cyclic olefin monomers using a catalyst; adding a polar monomer to obtain a mixture of linear block polymers and cyclic polymers; adding a quencher to quench the reaction; and separating to obtain the cyclic polyolefin; wherein the cyclic olefin monomer is selected as C. 5~20 The invention relates to an olefin containing carbon-carbon double bonds; the linear block polymer has polar blocks. By adding a polar monomer with a special structure after the ring-opening metathesis polymerization of a cyclic olefin, the two products can be easily separated in post-processing, yielding the target cyclic polyolefin.

This invention relates to the field of oil and gas reservoir production engineering, and discloses a hydrolyzable polymer, its preparation method, a fracturing in-fracture hydrolyzable polymer drainage aid, and its application. The hydrolyzable polymer contains: structural unit one provided by a styrene monomer; structural unit two provided by a maleic anhydride monomer; optionally, structural unit three provided by an amine and / or ammonium monomer having an olefin double bond; and structural unit four provided by a fluorine-containing monomer having an olefin double bond. The molar ratio of structural unit two to structural units one and three is 1:(3-7):(0-2.5); and the content of structural unit four is not less than 0.05 wt%. The drainage aid of this invention overcomes the shortcomings of existing drainage aids, such as excessive adsorption near the wellbore and "chromatographic separation" during migration. Furthermore, it exhibits low interfacial tension after hydrolysis, making it highly valuable for application.

Described herein are hyperbranched polythioethers comprising a plurality of terminal functional groups, wherein the terminal functional groups comprise terminal carbon-carbon double bonds or thiol groups, and wherein the hyperbranched polythioethers have a refractive index of at least 1.600 and a number average molecular weight of at least 1000 g / mol and at most 5000 g / mol. In some embodiments, the hyperbranched polythioethers are reacted with a multifunctional compound, wherein the multifunctional compound has complementary terminal functional groups that can react with the hyperbranched polythioethers in a thiol-ene reaction. These curable compositions have a high refractive index of at least 1.660 when cured (when measured at 450 nm) and can be used in optical devices.

The invention belongs to the technical field of polymer composite materials and functional electrolyte materials, and relates to an interface covalently constructed MOF composite electrolyte film, and a preparation method and application thereof. The method comprises the following steps: preparing a polymer matrix formed by polymerizing imidazole zwitterionic monomers and a metal organic framework material; the preparation method comprises the following steps: sequentially adding a polymer matrix formed by polymerizing imidazole zwitterionic monomers, a metal organic framework material, an ionic liquid and a photoinitiator into a methanol solvent to obtain a precursor suspension; initiating free radical polymerization reaction of acrylate double bonds by the precursor suspension in a photo-initiation or thermal initiation mode to form an initial three-dimensional cross-linked network; and heating the initial three-dimensional cross-linked network to volatilize the methanol solvent, and cooling to room temperature to obtain the interface covalently constructed MOF composite electrolyte film. Through covalent bonding interface engineering design, the problems of poor dispersibility and weak interface bonding of MOF in a polymer matrix are solved. The obtained film has excellent mechanical properties and ionic conductivity.

The application relates to the technical field of layered products, and discloses a high-elasticity weather-resistant composite waterproof roll material and a preparation method thereof. The roll material is a layered product, and sequentially comprises an upper reinforcing layer, a core layer and a lower reinforcing layer from top to bottom. The core layer is prepared from a bio-based polyurethane prepolymer prepared by reacting a microbial fermentation source long-chain polyester diol with an aliphatic diisocyanate, and is formed by thermal curing in cooperation with a chain extender, a catalyst and inorganic fillers. The long-chain polyester diol is obtained by polycondensation of a hydroxyl fatty acid monomer with a carbon chain length of ten to eighteen, and does not contain a double bond structure in the molecular chain. The application eliminates weak sites of photo-oxidative chain scission in the chain segment from the root of the molecular structure, blocks a chain scission path caused by ultraviolet rays, and maintains the elastic structure integrity of the roll material under long-term illumination.

[Problem] The purpose of the present invention is to provide: a curable silicone composition, a cured product from which exhibits high hardness and mechanical strength (including tensile strength and elongation percentage) near room temperature, exceptional permanent elongation characteristics, and exceptional viscoelastic characteristics such as stress damping, vibration absorption, and impact absorption, the curable silicone composition achieving these characteristics in a well-balanced manner; and the use of the curable silicone composition. [Solution] A curable silicone composition containing, within specific ranges in terms of mass%, (A1) an organopolysiloxane resin that has a curing-reactive functional group containing a carbon-carbon double bond, (A2) an organopolysiloxane resin that does not have the curing-reactive functional group, and (B) a linear organopolysiloxane that is of a specific chain length and has the curing-reactive functional group, the curable silicone composition also containing (C) a curing agent, where the total amount of components (A1) and (A2) is 55 mass% or less, and the mass ratio of the total amount of components (A1) and (A2) to the amount of component (B) is 2.0 or less; a cured product of the curable silicone composition; and the use of the curable silicone composition in semiconductor applications and the like.

This invention discloses a high-strength carbon fiber modified plastic and its preparation method. By weight, it comprises the following raw materials: 90-100 parts polypropylene, 8-12 parts modified carbon fiber, 3-5 parts maleic anhydride-grafted polypropylene, 2-4 parts toughening agent, 0.7-1.1 parts antioxidant, and 0.5-0.8 parts lubricant. This high-strength carbon fiber modified plastic achieves its goal by subjecting the carbon fiber surface to specific multi-step modification, sequentially introducing an aminosilane coupling layer, a gallic acid amide bond linking layer, and an itaconic acid active double bond functional layer. This forms an inside-out covalently bonded interface system, transforming the simple physical contact between the carbon fiber and the polypropylene matrix into a chemical bond. Furthermore, by combining maleic anhydride-grafted polypropylene as an interface compatibilizer and ethylene-octene copolymer as a toughening agent, the formulation design ensures both high strength and material toughness, resulting in a high-strength carbon fiber modified polypropylene composite material with balanced mechanical properties.