545 results about "Unsaturated bonds" patented technology

To provide a method for producing a modified resin that allows efficient production of a desired modified resin by enabling smooth progress of a modification reaction of a resin having an epoxy group by using a tertiary phosphine as a catalyst.SOLUTION: A method for producing a modified resin comprises a step (A-1) of reacting a nucleophile having no polymerizable unsaturated bond with a resin containing an epoxy group, under the presence of a catalyst containing a tertiary phosphine and under an atmosphere in which the oxygen concentration of a gas phase part within a reaction vessel is less than 2 vol.%.SELECTED DRAWING: None

Provided is an arylalkyl-modified indene composition comprising a plurality of compounds, each of the compounds having one or more arylalkyl groups on an indene ring and differing from the others in the number of arylalkyl groups in one molecule. The content of the compound or compounds having a single arylalkyl group in one molecule is 1% or less in the composition at the percentage calculated on the basis of the area ratio in a GPC chart. At least one of the arylalkyl groups present in the composition is an arylalkyl group having a polymerizable unsaturated bond-containing group, while at least one of the arylalkyl groups present in the composition is an arylalkyl group having no polymerizable unsaturated bond-containing group.

Provided is an arylalkyl-modified indene composition that contains a plurality of types of compounds having an arylalkyl group on an indene ring, the compounds having different numbers of arylalkyl groups in one molecule, wherein: the content of a compound in which the number of arylalkyl groups in one molecule is 1 is 1% or less as calculated from the area ratio of the GPC chart; at least one of the arylalkyl groups present in the composition has a polymerizable unsaturated bond-containing group; and at least one of the arylalkyl groups present in the composition does not have a polymerizable unsaturated bond-containing group.

This method for producing an aryl-alkylated indene composition involves: adding an arylalkyl group having a polymerizable unsaturated bond-containing group to an indene compound; and adding an arylalkyl group having no polymerizable unsaturated bond-containing group to the indene compound to which the arylalkyl group having a polymerizable unsaturated bond-containing group is added.

The invention discloses a far-infrared high-transmittance composite material, a preparation method thereof and an optical device, and the far-infrared high-transmittance composite material comprises the following components in parts by weight: 70-99 parts of a polymer matrix; 1-30 parts of an anti-reflection auxiliary agent; the polymer matrix is a sulfur-containing polymer prepared by polymerization reaction of a polymeric monomer and sulfur, and the proportion of carbon-carbon unsaturated bonds is less than 3%; the polymeric monomer is selected from at least one of a vinyl monomer, a propenyl monomer, an acrylic acid monomer, a methacrylic acid monomer, an epoxide monomer, a thiopropyl ring monomer, an alkynyl monomer, a butadiene monomer, an isoprene monomer and a norbornene monomer; the anti-reflection auxiliary agent comprises at least one of nano zinc sulfide, nano zinc selenide, nano calcium fluoride, nano magnesium fluoride and nano magnesium oxide. The composite material and the optical device thereof have high far infrared transmittance and good mechanical properties and processability, and can meet the requirements of various far infrared optical fields.

The invention belongs to the technical field of semiconductor material processing, and relates to a bonding method and a wafer room temperature bonding method, which are executed by a bonding system comprising a film forming chamber, a bonding chamber, a transmission chamber and a bonding point location preparation unit. The method comprises the following steps: forming an active film layer containing unsaturated bond active points on the surface of a wafer; active components are introduced through the bonding point site preparation unit, so that the active components react with the active point sites to form bonding point sites; transmitting the two wafers to a bonding chamber and aligning the two wafers; pressure is applied, and bonding is completed by means of the pressure and the bonding reaction between the bonding points. According to the method, the flat and active bonding surface can be prepared, the lattice structure is not influenced in the bonding process, and the quality of the bonding wafer product can be improved.

A resin composition and an article made therefrom are provided. The resin composition includes: (A) 100 parts by weight of an unsaturated bond-containing polyphenylene ether resin; (B) 20 parts by weight to 150 parts by weight of a copolymer, the copolymer having a structural unit formed by a monomer of Formula (1) and a structural unit formed by a monomer of Formula (2), and the content of the structural unit formed by the monomer of Formula (2) in the copolymer is 55 wt % to 90 wt %; and (C) 10 parts by weight to 40 parts by weight of an unsaturated bond-containing crosslinking agent. The resin composition may be used to make various articles, such as a prepreg, a resin film, a laminate or a printed circuit board, and at least one of the following properties can be improved, including glass transition temperature, Z-axis ratio of thermal expansion, multi-layer board heat resistance, interconnect stress test, dissipation factor aging rate, temperature coefficient of dielectric constant, temperature coefficient of dissipation factor and branch-like pattern at laminate edges.

The invention belongs to the technical field of rubber auxiliaries and rubber tracks, and particularly relates to a coupling agent composition for inhibiting rubber appearance flooding and application of the coupling agent composition in the rubber tracks. The coupling agent composition comprises the following components in percentage by weight: 15%-30% of coupling agent, 1%-15% of metal chloride and 70%-85% of clay mineral. Different from a microcapsule technology only aiming at anti-aging agent migration, the coupling agent composition disclosed by the invention can effectively capture various types of color-flooding source substances including carbon black residues, anti-aging agents, antioxidants and the like by starting from common characteristics (containing unsaturated bonds, heteroatoms and aromatic structures) of color-flooding small molecules and through the synergistic effect of the coupling agent and metal ions, so that the color-flooding source substances can be effectively captured. And the method has wide applicability. In addition, a composite system composed of the clay, the coupling agent and the metal chloride can improve the bonding strength of the rubber and a track framework material, and is suitable for being applied to a heavy-load rubber track.

The invention relates to a reaction type closed diamine chain extender, dual-curing photosensitive resin, a 3D printed part and a preparation method, the reaction type closed diamine chain extender is obtained through reaction of a diamine chain extender and a functional monomer, the functional monomer at least comprises a functional group A, a functional group B and a functional group C, the functional group A is an aldehyde group or a ketone group and is used for reacting with an amino group in the diamine chain extender; and a functional group B containing a photocurable unsaturated bond. The reactive closed diamine chain extender provided by the invention participates in a photocuring process, so that the strength of a material in a photocuring stage is improved, the product yield in a printing process is ensured, no by-product is generated during subsequent heat treatment, and the mechanical property of a final finished product is not influenced. The dual-curing photosensitive resin can be stably stored for a long time, the mechanical property of the material can be remarkably improved through the photocuring-heat treatment synergistic effect, and the dual-curing photosensitive resin can be used for photocuring 3D printing technologies such as sinking type SLA and pull-up type DLP and LCD at the same time.

The present invention relates to a process for producing a coating from an aqueous, radiation-curable coating composition, wherein the process comprises the steps in the sequence (1) to (4):(1) applying an aqueous, radiation-curable coating composition on a surface of a substrate,(2) drying the aqueous, radiation-curable coating composition, affording an at least partially dried coating composition,(3) irradiating the at least partially dried coating composition with UV light having a wavelength s 220 nm under inert atmosphere, followed by(4) irradiating with UV light having a wavelength 300 nm or with E-beam,wherein the aqueous, radiation-curable coating composition is a dispersion comprising:(A) at least one water-dispersible polyurethane (A), wherein the polyurethane (A) has a urea group (—NH—CO—NH—) concentration of at least 0.1 milli-equivalents per g of polyurethane (A) and of at most 2.6 milli-equivalents per g of polyurethane (A) and the polyurethane (A) is essentially free of radiation-curable, ethylenically unsaturated bonds,(B) at least one radiation-curable diluent (B) with a molar mass less than 750 g / mol and with an acrylate functionality of from 2 to 5, and(C) water and optionally organic solvent, whereby the optional organic solvent is present in an amount of at most 30 wt. %, based on the total amount of water and organic solvent,whereinthe amount of (A) is from 30 to 85 wt. % and the amount of (B) is from 15 to 70 wt. %,based on the total amount of (A) and (B).

The invention discloses an in-situ curable electrolyte, an in-situ curable electrolyte formed by the in-situ curable electrolyte and a battery. The in-situ curable electrolyte comprises an electrolyte and an electrolyte additive, wherein the electrolyte additive comprises a compound A and a compound B, and the compound A is selected from one or more of compounds with a structure as shown in a formula (1); the compound B is selected from one or more of amino-containing compounds; in the formula (1), R3 is a substituent group containing an unsaturated bond. The in-situ curing electrolyte formed by the electrolyte capable of being cured in situ contains a multiple cross-linked network structure formed by interaction of amido and thiolactone, so that the mechanical strength of the gel electrolyte is improved; meanwhile, the gel electrolyte contains disulfide bonds and hydrogen bonds, so that the gel electrolyte is endowed with certain self-repairing capability, and the cycle life of a battery can be prolonged. # imgabs0 #

The application relates to the field of catalysis, and discloses an aluminum oxide, a preparation method and application thereof, and a solid state 27 The Al magic angle spinning nuclear magnetic resonance spectrum has characteristic peaks between 16-51 ppm, and the electron paramagnetic resonance spectrum of the aluminum oxide has characteristic peaks at g=2.002-2.004. The surface and the interior of the aluminum oxide material provided by the application have F color centers, the aluminum oxide material can activate hydrogen under mild conditions, does not need to exist in the presence of a transition metal species, and catalyzes hydrogenation of a compound containing a carbon-carbon unsaturated bond.

The present invention provides an electronic or electrical device or component thereof comprising a cross-linked polymeric coating on a surface of the electronic or electrical device or component thereof; wherein the cross-linked polymeric coating is obtainable by exposing the electronic or electrical device or component thereof to a plasma comprising a monomer compound and a crosslinking reagent for a period of time sufficient to allow formation of the cross-linked polymeric coating on a surface thereof,wherein the monomer compound has the following formula:where R1, R2 and R4 are each independently selected from hydrogen, optionally substituted branched or straight chain C1-C6 alkyl or halo alkyl or aryl optionally substituted by halo, and R3 is selected from:where each X is independently selected from hydrogen, a halogen, optionally substituted branched or straight chain C1-C6 alkyl, halo alkyl or aryl optionally substituted by halo; and n1 is an integer from 1 to 27; and wherein the crosslinking reagent comprises two or more unsaturated bonds attached by means of one or more linker moieties and has a boiling point at standard pressure of less than 500° C.

The application provides an improved hyaluronic acid injection preparation for inflammation targeting and stem cell capture, a preparation method and use thereof, and belongs to the field of medicine. The injection preparation is prepared from unsaturated bond modified hyaluronic acid, stem cell targeting DNA tetrahedron and thiol modified inflammation targeting aptamer as raw materials. The injection preparation can be targeted to accumulate at an osteoarthritis site, capture mesenchymal stem cells in situ, recruit mesenchymal stem cells to the osteoarthritis site, promote differentiation of stem cells into cartilage, promote cartilage repair, play a role in treating osteoarthritis, and has a good application prospect.

The present invention provides an electrolyte additive and a preparation method thereof, an electrolyte and a lithium ion battery. The S atoms in the structure of the electrolyte additive of the present invention have low electronegativity and low binding energy with lithium ions, which can reduce the desolvation energy of lithium ions and significantly improve the rate performance and cycle life of the battery at low temperatures. Moreover, the O atoms in its structure can significantly improve the solubility of the additive to compensate for the defect of poor solubility caused by the S atoms. In addition, the additive contains unsaturated bonds, which can form a dense SEI film containing S, which is beneficial to the migration of lithium ions at the electrode / electrolyte interface at low temperatures, and the SEI film containing S can effectively inhibit the generation of lithium dendrites at low temperatures, further improving the rate performance and cycle life of the battery at low temperatures.

The invention belongs to the technical field of all-solid-state batteries, and particularly relates to a liquid crystal elastomer-containing sulfide solid-state battery and a preparation method thereof. The sulfide solid-state battery comprises an electrode membrane and an electrolyte membrane, and the electrode membrane is prepared by mixing a liquid crystal elastomer serving as a binder with an electrode material through a dry method; and / or the electrolyte membrane is prepared by mixing a liquid crystal elastomer serving as a binder with a sulfide solid electrolyte through a dry method; the liquid crystal elastomers are the same or different and are prepared from liquid crystal functional monomers containing at least one unsaturated bond and polymeric monomers containing unsaturated double bonds through free radical polymerization; or the liquid crystal functional monomer containing at least one unsaturated bond and a polymeric monomer containing sulfydryl or amido are subjected to sulfur-alkene reaction or Michael addition reaction. In the preparation process of the sulfide solid-state battery, a solvent is not needed, and the sulfide solid-state battery has important significance of energy conservation, emission reduction and environmental protection.

The invention discloses a gel electrolyte which is prepared by a chemical cross-linking method and contains an unsaturated bond or reactive functional group (such as double bonds, hydroxyl and carboxyl) monomer and a material with ether type and hydroxyl type oxygen as an additive. Rich functional groups with negative charges on the monomer can be coordinated with Zn < 2 + > ions, so that the point effect is limited, more Zn salts are attracted to be accumulated, and the growth of Zn dendritic crystals in the repeated charging and discharging process is inhibited. The relatively strong interaction between the monomer and the material with ether type and hydroxyl type oxygen and H2O breaks the intermolecular hydrogen bond of H2O-H2O and reduces the reaction activity of water, so that the freezing point of the gel is reduced and the thermal stability is enhanced at the same time. Therefore, the gel electrolyte shows excellent electrochemical performance at a wide temperature range. The gel electrolyte provided by the invention inhibits dendritic crystal growth, hydrogen evolution and other interface side reactions, and is beneficial to uniform Zn < 2 + > deposition, thereby improving the stability of the zinc negative electrode.

The invention provides photovoltaic isolation protection glue and application thereof. The photovoltaic isolation protection glue is prepared from the following components in parts by mass: 5 to 70 parts of unsaturated bond-containing monomer, 5 to 60 parts of prepolymer and 0.1 to 10 parts of photoinitiator. Through design and mutual compounding of the components, the photovoltaic isolation protection glue has low viscosity and appropriate surface tension, can realize high-precision coating processes such as ink-jet printing and the like, can embed a two-dimensional code during precise coating, and supports single-chip code printing tracing; moreover, a protective film formed by curing the photovoltaic isolation protective glue is high in light transmittance, has excellent high temperature resistance and acid and alkali resistance, and can ensure that a photovoltaic battery keeps excellent photoelectric conversion performance while providing a stable and effective protection effect on a battery piece.

The invention relates to a resin composition and a product thereof, the resin composition at least comprises modified polyphenyl ether resin, modified hydrocarbon resin and a crosslinking agent containing unsaturated bonds, a modified group of the modified polyphenyl ether resin has unsaturated double bonds, the modified hydrocarbon resin does not contain unsaturated bonds, and the tensile strength is more than 10 MPa. In the resin composition provided by the invention, the crosslinking agent containing unsaturated bonds can react with the modified polyphenyl ether resin with unsaturated double bonds, and forms an interpenetrating network with the saturated modified hydrocarbon resin with high tensile strength at the same time to obtain a polymer layer with high binding force, so that the aging resistance and humidity and heat resistance of the circuit substrate can be improved at the same time.

A compound represented by the following formula (1):wherein RG is a group containing at least one cyclic structure,I is an iodine atom,R1 is a monovalent functional group having 0 to 30 carbon atoms, containing no polymerizable unsaturated bond, and being optionally the same or different;n is an integer of 1 to 5, andm is an integer of 1 to 5.

The invention provides a preparation method of a hydrophobic modified polyethersulfone porous membrane, which comprises the following steps: firstly, preparing a hydrophobic modified solution, then carrying out crosslinking pretreatment to form a hydrophobic crosslinking coating on a polyethersulfone base membrane, then carrying out crosslinking under ultraviolet irradiation, and finally preparing the hydrophobic polyethersulfone porous membrane. The pre-crosslinked membrane formed by crosslinking pretreatment is formed by forming a hydrophobic crosslinked coating on a polyethersulfone base membrane, and a hydrophobic monomer is grafted on the hydrophobic crosslinked coating under the irradiation of ultraviolet light; the hydrophobic cross-linked coating not only coats the outer surface of the polyethersulfone base membrane, but also can be impregnated on a porous structure in the polyethersulfone membrane, and finally the hydrophobic modified polyethersulfone porous membrane is prepared. Wherein the cross-linking agent is a monomer containing a plurality of unsaturated bonds, an addition polymerization reaction can occur among the unsaturated bonds to form a spatial net-shaped structure, the hydrophobic cross-linking coating can be firmly covered on the porous structure of the polyether sulfone and cannot fall off, and the hydrophobic monomer is also provided with unsaturated bonds, so that the addition polymerization reaction occurs between the hydrophobic monomer and the cross-linking agent, and a certain number of hydrophobic groups are grafted.

The present invention addresses the problem of providing a polysiloxane which enables the production of a photosensitive resin composition yielding a cured product that can be processed with high resolution and has high flexibility. The present invention is a polysiloxane that includes one or more structures selected from the group consisting of structures represented by formulae (1) to (3). In formulae (1) to (3), R1s each independently represent a group represented by formula (4); R2 represents a hydrocarbon group having 1-4 carbon atoms; R3 represents a monovalent hydrocarbon group having 1-6 carbon atoms; *1 represents a bonding point bonded to an oxygen atom; and *2 represents a bonding point bonded to a hydrogen atom or a silicon atom. In formula (4), *3 represents a bonding point bonded to a silicon atom; R4 represents a divalent hydrocarbon group having 1-6 carbon atoms; and R5 and R6 each independently represent a group having 1-6 carbon atoms and consisting only of hydrogen atoms, carbon atoms, oxygen atoms and nitrogen atoms, wherein at least one of R5 and R6 represents a group containing an aliphatic carbon-carbon unsaturated bond.

The invention belongs to the technical field of material science, and relates to a preparation method and application of an unsaturated bond extended tetraphenyl ethylene siloxane compound. An unsaturated bond is introduced into a siloxane group, and the siloxane group containing the unsaturated bond and a tetraphenyl ethylene derivative are subjected to a coupling reaction. The coupling reaction is carried out in an inert atmosphere, the temperature is 90-150 DEG C, and the time is 6-24 hours. And purifying the product by silica gel column chromatography to obtain the target compound. Unsaturated bonds are introduced into a tetraphenyl ethylene structure, so that the adjustability of the photochromic wavelength is realized, the performance of the compound is remarkably improved, the application range of the compound is remarkably widened, and a new thought and a new method are provided for development of photochromic materials.

The invention relates to the field of sodium ion batteries, and discloses a modified sodium ion inorganic conductor, a preparation method of the modified sodium ion inorganic conductor, a composite solid electrolyte, a preparation method of the composite solid electrolyte and a solid battery. The prepared modified sodium ion inorganic conductor can be subjected to a cross-linking polymerization reaction with a corresponding cross-linking agent containing unsaturated bonds in the presence of an initiator to form a compact structure in which inorganic filler and a cross-linking agent chain segment are directly chemically bonded; therefore, high ionic conductivity, high sodium ion transference number, low bulk phase impedance and low electrode-electrolyte interface impedance of the composite solid electrolyte are realized, and development of a sodium ion battery with high cycle stability and high use safety is facilitated.

A release agent contains a polymer of a polymerizable component containing a (meth)acrylate having a long-chain alkyl group with carbon atoms of 12 to 22 and an acid group-containing ethylenic unsaturated bond-containing monomer, wherein an acid group is neutralized by ammonia and / or amines.

The invention provides a polyvinyl alcohol polymer and the like. The polyvinyl alcohol polymer fully satisfies the following requirements 1 and 2: the requirement 1 has a polymerizable unsaturated bond; in a temperature region of 150 DEG C or higher, the temperature at which the weight reduction rate as determined by thermogravimetric measurement is greater than 0.5% / min is 255 DEG C or higher.

Provided is a curable composition capable of forming a cured film having a high refractive index and good heat resistance. The present invention provides a curable composition containing titanium oxide particles and a polymerizable compound. The polymerizable compound is a compound having one or two ethylenically unsaturated bonds. The polymerizable compound has a molecular weight or a weight-average molecular weight of 3000 or less. The total content of the titanium oxide particles and the polymerizable compound is 85 mass% or more based on the total solid content of the curable composition.

This application provides a copolymer membrane, its preparation method, and its application. The copolymer membrane is a hydrophilic-hydrophobic or hydrophilic-hydrophobic-hydrophilic bilayer structure, wherein the hydrophobic ends are cross-linked by unsaturated bonds. This application uses thermal cross-linking to cross-link the hydrophobic ends of the bilayer structure through unsaturated bonds. This method improves membrane stability; it also immobilizes nanoporins within the membrane, increasing the bonding strength between the pores and the membrane and reducing the risk of nanoporin detachment; furthermore, it significantly reduces the need for light-transmitting materials for UV cross-linking, lowering costs; and it avoids the adverse effects of free radicals generated by chemical cross-linking on the porous proteins.

The curable fluorosilicone composition of the present invention comprises at least: (A) an organopolysiloxane having at least two alkenyl groups and at least one fluoroalkyl group in one molecule; (B) an organopolysiloxane having at least two silicon atom-bonded hydrogen atoms and at least one fluoroalkyl group in one molecule; (C) a catalyst for platinum group metal-based hydrosilylation reaction; and (D) a hydrosilylation reaction inhibitor having an aliphatic unsaturated bond, the (C) component being a capsule-type catalyst with an acrylic resin as a wall material, the platinum group metal in the (C) component being 0.1 to 100 ppm in mass units relative to the present composition, and the molar ratio of the aliphatic unsaturated bond in the (D) component to the platinum group metal in the (C) component being 1 to 100. The present composition has good curability and a sufficient pot life at ordinary temperature.

A resin composition includes a coloring material, a resin, and a solvent. The resin includes a graft polymer which has a main chain including a molecular chain having a structure derived from a compound having an ethylenically unsaturated bond-containing group and a graft chain, and the graft chain includes a repeating unit p1 having an oxetane group. The resin composition may be employed in a film formed of the resin composition; an optical filter; a solid-state imaging element; and an image display device.