204 results about "Silicone polymer" patented technology

The invention discloses a flame-retardant reinforced polycarbonate composite material and a preparation method thereof, and belongs to the technical field of polycarbonate composites.The flame-retardant reinforced polycarbonate composite material comprises 70%-90% of polycarbonate resin, the polycarbonate resin is aromatic polycarbonate with the viscosity average molecular weight ranging from 20000 to 35000; the glass fiber is alkali-free chopped E glass fiber, and the surface of the glass fiber is treated by an amino silane coupling agent; the flame retardant comprises 5-15% of a phosphorus-nitrogen-silicon composite flame retardant, the composite flame retardant is a synergistic system formed by physically premixing a phosphate ester compound, a nitrogen charring agent and a silicone polymer, and the phosphate ester compound plays a role in gas-phase flame retardance and partial condensed-phase flame retardance during combustion. By adopting a phosphorus-nitrogen-silicon composite flame-retardant synergistic system, high flame-retardant efficiency is realized under the condition of low additive amount, the halogen-free and environment-friendly effects are realized, and the environmental and health hidden dangers of the traditional brominated flame retardant are overcome.

The invention belongs to the technical field of lithium batteries, and particularly relates to a composite defoaming agent as well as a preparation method and application thereof. The composite defoaming agent comprises an epoxypropane-ethylene oxide segmented copolymer, a ZIF-8 packaging material, a temperature-sensitive copolymer and a conductive synergist, the ZIF-8 packaging material comprises ZIF-8 and a modified organic silicon polymer packaged in the ZIF-8, and the modified organic silicon polymer contains fluorine ions. According to the invention, the ZIF-8 packaging material and the thermo-sensitive copolymer are adopted, and other components are combined, so that the gas content of the negative electrode slurry and the resistance amplification of a pole piece can be reduced, and the storage stability, the thermal stability and the defoaming response efficiency can be improved; the defoaming agent has a good defoaming effect and a slow release effect, can inhibit thermal migration, and avoids interface resistance rise and phase separation.

The invention belongs to the field of organic silicon coatings, and particularly relates to a fluorine-containing organic silicon polymer, a preparation method thereof and application of the fluorine-containing organic silicon polymer in preparation of an organic silicon coating. The fluorine-containing organosilicon polymer is composed of a vinyl fluorine-containing organosilicon polymer, a hydrogen-based fluorine-containing organosilicon polymer, a silane coupling agent, a catalyst and an organic solvent. The fluorine-containing organic silicon polymer provided by the invention is applied to LED element packaging, and after the fluorine-containing organic silicon polymer is sprayed on the surface to form an organic silicon coating, the overall air tightness can be improved, so that the fluorine-containing organic silicon polymer has good luminous efficiency and the service life is prolonged.

Provided is a toner comprising: a toner particle containing a binder resin; and an organic silicon polymer particle on a surface of the toner particle, wherein the binder resin contains a crystalline resin, and when the toner particle is pelletized and a Young's modulus of the toner measured in a micro compression test at 25° C. is represented by TE (MPa) and when one organic silicon polymer particle is separated from the toner and a Young's modulus of the one organic silicon polymer particle measured in a micro compression test at 25° C. is represented by SiE (MPa), TE and SiE satisfies 800≤TE≤2500 and 1.5≤SiE / TE≤10.0.

The invention discloses a robot simulation skin and a preparation method of the robot simulation skin. The formula of the robot simulation skin is composed of 100 parts of an organosilicon polymer with a main chain containing double bonds, 30-45 parts of a hyperbranched phenyl silicone oil plasticizer, 5-18 parts of a nanoscale texture conditioning agent, 7-22 parts of a dynamic crosslinking system and 1.5-9 parts of a function response additive. Through cross-scale cooperation of an organosilicon polymer matrix and functional components, a conformational entropy buffer network of a hyperbranched plasticizer is constructed on a molecular level, a light-force energy flow channel decoupling mechanism of a core-shell regulator is formed on a mesoscopic level, space-time regulation and control of gradient crosslinking and photo-thermal response are realized on a macroscopic level, and meanwhile, the cross-scale cross-linked hyperbranched polymer has good application prospects. The physical essence of inherent contradictions of'high-temperature softening-low-temperature embrittlement 'and'light transmittance-elasticity mutual exclusion' of existing silica gel skin is broken through, and the sensitivity of conformation entropy change to temperature is reduced through the molecular topology confinement effect.

The invention discloses an OCA (Optical Clear Adhesive) based on temperature-responsive visbreaking microspheres as well as a preparation method and application of the OCA. The OCA is prepared from the following raw materials in parts by mass: 100 to 105 parts of a main copolymer, 4 to 8 parts of the temperature-responsive visbreaking microspheres, 1 to 2 parts of boron nitride nanosheets, 0.8 to 1.2 parts of an antioxidant, 0.8 to 1.2 parts of a light stabilizer and 30 to 40 parts of a solvent, the main body copolymer is formed by graft copolymerization of urethane acrylate and an organic silicon modified composition; the organic silicon modified composition is composed of an organic silicon monomer and an organic silicon polymer; the temperature response type visbreaking microsphere takes a hollow microsphere protomer as a base sphere, the hollow microsphere is filled with silicone oil, and a shell is coated with fluorine-containing acrylate. The temperature-controllable visbreaking is realized through the temperature-responsive visbreaking microspheres, and meanwhile, the OCA prepared by the preparation method disclosed by the invention not only ensures optical transparency, but also realizes the synergistic performance of normal-temperature bonding, high-temperature visbreaking and folding resistance. The adhesive can be widely applied to the technical field of optical adhesives.

The present application relates to a treating agent and a treated fiber fabric or coating. The treating agent includes a silicone polymer, an emulsifier, and an aqueous medium, wherein the silicone polymer includes structural units derived from monomer I, which includes a silicon monomer I-A and optionally a silicon monomer I-B, each of which is defined in the specification. The treating agent can simultaneously impart good oil and water repellency to a fiber fabric and good stain or graffiti resistance to a coating.

The present disclosure provides silane compounds and silicone polymers, methods of preparing the silane compounds and silicone polymers, and use of the silane compounds and silicone polymers. The present disclosure further provides use of the silane compounds and silicone polymers as antidegradants.

Disclosed herein are new types of foam insulation, and in particular, foam insulation for the exterior surfaces of residential, industrial, institutional or commercial buildings made using new silicone spray foam systems. These inventions relate to isocyanate-free foams used for thermal insulation, flame-retardancy and water resistance. The foams are prepared from silicone polymers with non-fluorinated blowing agents and can be used in the construction industry.

The present invention relates to a thermal and / or acoustic insulation product for filling a building element comprising two facing walls forming a cavity, the product comprising blown glass wool forming flakes, the product comprising a hydrophobic additive, the hydrophobic additive being a branched and cross-linked organosilicon polymer compound, a median flake size being less than 20 mm.

COMPOSITIONS INCLUDING AN ORGANOSILICONE POLYMER AND AN AQUEOUS-PHASE FILM-FORMING AGENT. The invention relates to compositions including (a) water, (b) at least one oil, (c) at least one organosilicone polymer selected from a silicone acrylate copolymer, a glycerol silicone resin, and combinations thereof; and (d) at least one aqueous-phase film-forming agent, such as a copolymer including a vinyl pyrrolidone monomer. Skin-makeup processes are also proposed. Figure for abstract: none

Disclosed is a hair care composition comprising: i) a cleansing surfactant comprising an anionic surfactant; ii) a siloxane, wherein the average particle size of the siloxane is 50 nm to 800 nm; and iii) a compound comprising in its molecule a siloxane polymer, a quaternary ammonium group and a polyether; wherein the weight ratio of the amount of the siloxane to the amount of the compound is from 3: 1 to 20: 1.

The invention relates to the use of a substrate for shielding X-ray radiation. The matrix for radiation protection against X-ray radiation comprises at least one silicone polymer and at least one filler.

This invention provides an ethyl-containing alkoxy-terminated organosilicon polymer, its preparation method, and its applications. The preparation method includes: S1, mixing methylvinylcyclotetrasiloxane, a solvent, and a first catalyst, introducing hydrogen gas, and reacting at 50-70°C until the methylvinylcyclotetrasiloxane content is no higher than 5%, filtering to remove impurities and obtain the product; S2, under nitrogen protection, ring-opening the product obtained in step S1 with acetic anhydride in the presence of a ring-opening catalyst, neutralizing and hydrolyzing, removing impurities, and obtaining the product; S3, under nitrogen protection, reacting the product of step S2 with hexamethyldisilazane at 40-50°C for 1-3 hours, adding N,N-diethylamino-trialkoxysilane, and reacting at 50-60°C for 1-3 hours. The polymer obtained by this invention, as a thermally conductive powder treatment agent, can effectively improve the dispersion performance of powders and enhance the heat resistance of products without reducing their tensile strength.

A method of making an oven cavity of a cooking appliance, and a cooking appliance made therewith, are provided. The method includes forming a composite sheet via sheet molding compound. The composite sheet includes glass fiber impregnated with silicone polymer. An intermediate assembly is formed by disposing a layer comprising an insulative material onto a first layer of the composite sheet. The intermediate assembly is inserted into a mold. A compression load is applied to the intermediate assembly in the mold to obtain a molded piece. One or more of the molded piece forms a composite body that defines the oven cavity of the cooking appliance. The silicone polymer may include one or more of poly dimethylsiloxane, poly methylphenyl silanol, poly diphenyl silanol, and poly vinyl functional backbone silicones having methyl hydrosilane crosslinkers. The insulative material may include ceramic foam, hollow glass microspeheres, or recycled glass powder.

The application discloses a diaphragm with a self-layering coating, a preparation method thereof and a related secondary battery and an electric device. A battery diaphragm comprises a base film and a coating arranged on at least one surface of the base film, wherein the coating is obtained by one-time coating of a slurry, the slurry comprises an amino-modified organic silicon polymer, an amino-modified inorganic filler and an epoxy resin, the content of the amino-modified organic silicon polymer on the upper surface of the coating is denoted as V1, the content of the amino-modified organic silicon polymer on the lower surface of the coating is denoted as V2, and V1>V2. According to the embodiment of the application, the heat resistance and the adhesion of the base film can be simultaneously improved by one-time coating, and the heat shrinkage resistance of the diaphragm can be improved by the amino-modified organic silicon polymer, the amino-modified inorganic filler and the epoxy resin.

Polishing composition containing abrasive grains, a water-soluble polymer, an aggregation inhibitor and water, wherein the polishing composition is characterized in that, The water-soluble polymer of at least one is selected from the group consisting of cellulose and polysaccharides; The aggregation inhibitor of at least one is selected from a group consisting of vinyl-based water-soluble polymers, oxyalkylene polymers, oxyalkylene copolymers and silicone polymers; and If the mean particle size of the particles contained in the polishing composition is defined as R1, and the mean particle size of the abrasive grains in the case where the abrasive grains are dispersed in water to have the same concentration as the concentration of the abrasive grains in the polishing composition is defined as R2, then R1 / R2 is 1.3 or less.

An electrophotographic belt having a base layer and a surface layer on the base layer, wherein the surface layer comprises an organosilicon polymer as a binder and a silica particle as a roughening particle, a content of the silica particle in the surface layer is 2.5 to 20.0% by mass, and when a reflectance of a surface layer side of the electrophotographic belt to light with a wavelength of from 800 to 1000 nm and an incident angle of 0° is measured, a minimum value of the reflectance at the wavelength of from 800 to 1000 nm is 1.5% or more, and a difference between a maximum value and a minimum value of the reflectance at the wavelength of from 800 to 1000 nm is 0.5% or less.

The present invention pertains to: a functionalized thermoplastic polyurethane containing a novel chain extender having functionality capable of chemically bonding to a prepolymer polymerized by reacting a polyol (P) with a diisocyanate (R); a functional composite material containing one or more monomers or polymers selected from the group consisting of an anionic functional group, an amphoteric functional group, a perfluorinated compound, a hydrogel, and a silicone polymer; a method for producing same; and an article including same.

The present invention provides hydrophobic coatings for transparent surfaces and processes of producing the same, whereby the invention is embodied by a transparent multilayer structure, comprising: a transparent substrate having an antireflective coating; a transparent surface coating comprising reactive hydroxyl groups, such as a silicon dioxide coating applied onto said transparent substrate; and a hydrophobic coating applied onto the outer layer of said transparent surface coating comprising reactive hydroxyl groups, whereby said hydrophobic coating comprises a fluorine free silicone polymer.

The invention relates to the technical field of organic silicon materials, in particular to a light-weight high-flame-retardant organic silicon composite material and a preparation method thereof. The composite material comprises the following components in parts by weight: 100 parts of an organosilicon polymer, 15-60 parts of a composite flame retardant, 5-40 parts of a light filler with a hollow structure, 10-50 parts of a reinforcing filler, 0.5-5 parts of a cross-linking agent and 0.1-2 parts of a catalyst, and a three-dimensional porous network structure constructed by the light filler with the hollow structure and the composite flame retardant is formed in the composite material. The invention provides an organic silicon composite material with low density, high flame retardance and good mechanical property and a preparation method thereof.

A method for forming an aqueous dispersion of a copolymer includes preparing a copolymerizable composition in water. The copolymerizable composition includes 5 to 95 weight percent of an ethylenically functionalized silicone polymer or silane, based on the total weight of the copolymerizable composition, and 5 weight percent or more of an organic acrylic monomer, based on the total weight of the copolymerizable composition. The method also includes preparing 0.1 to 10 weight percent of a surfactant, based on the total weight of the ethylenically functionalized silicone polymer or silane and the organic acrylic monomer. The ethylenically functionalized silicone polymer or silane and the organic acrylic monomer are polymerized to form an aqueous dispersion of a copolymer. The copolymer exhibits a glass transition temperature (Tg) of 0 to -100°C. Tg is measured by differential scanning calorimetry in an open crucible at a heating rate of 10°K per minute according to DIN 53765.

The present invention relates to a silicone polymer skin adhesive comprising a polyhydroxylated polysaccharide fiber throughout it; wearable products comprising the silicone polymer skin adhesive; a pre-cured product capable of forming a silicone polymer skin adhesive; methods of using silicone polymer skin adhesives; and a method of making the silicone polymer skin adhesive.

The invention relates to the technical field of cables, and discloses a corrosion-resistant flame-retardant cable and a preparation method thereof.The preparation method comprises the steps that polyvinyl chloride resin, an ammonium polyphosphate capsule flame retardant, a plasticizer, a stabilizer and a lubricant are mixed, plastifying is conducted in a plastifying mill, compression molding is conducted in a press vulcanizer, and a corrosion-resistant flame-retardant sheath material is obtained. The organosilicone cross-linked polymer in the capsule wall of the capsule flame retardant contains a large number of ester groups, and forms stronger hydrogen-bond interaction with chlorine atoms of polyvinyl chloride, and the interfacial acting force of the organosilicone cross-linked polymer and the chlorine atoms of the polyvinyl chloride is increased, so that the compatibility of the coated ammonium polyphosphate and the polyvinyl chloride becomes good, and good tensile strength can be maintained. The organic silicon polymer in the flame retardant capsule wall has very strong hydrophobicity and corrosion resistance, the water absorption and moisture absorption of ammonium polyphosphate can be reduced, the sheath material still has relatively high tensile strength after being soaked in saline water, and the water resistance, salt resistance and corrosion resistance become better.

The invention provides an oxidation tail gas treatment method and system. The oxidized tail gas treatment method comprises the steps that oxidized tail gas is subjected to membrane separation, and an organic composite silicon membrane is adopted for membrane separation; the organic composite silicon film comprises a base film and an organic silicon film, and the organic silicon film comprises an organic silicon polymer and a hydrophobic additive. The method has the advantages of being simple in technological process, low in investment, environmentally friendly, low in carbon emission, stable in operation and good in economic benefit.

The invention discloses a rosin graft copolymer and a preparation method thereof, and the preparation method comprises the following steps: mixing a hydroxyl-containing compound, an organosilicon polymer and an acidic compound for esterification reaction to obtain a poly-organosilicon cross-linking agent; the organic silicon polymer comprises one or more of a carboxyl organic silicon prepolymer, a double-end single-hydroxyl organic silicon prepolymer, a single-end double-hydroxyl organic silicon prepolymer or a hydroxyl organic silicon oligomer; and mixing the polyorganosilicone cross-linking agent, epoxy resin and first-grade rosin for grafting reaction to obtain the rosin grafted copolymer. According to the rosin grafted copolymer containing the polyester cross-linking agent, the polyester cross-linking agent is mainly used for fully cross-linking the rosin grafted copolymer, and the rosin grafted copolymer containing the polyester cross-linking agent has high molecular weight and softening point and good oil solubility; the purpose of adding the polyorganosilicone is to improve the dispersibility of the resin to pigments and fillers and the wettability and the printability of the resin to a substrate.

The present invention relates to a process for producing a bio-based, alkyl-modified silicone polymer and its use in hygiene products and / or cosmetic products. According to the invention, the bio-based component is achieved by modification with bio-based olefins.

The present invention relates to an anhydrous cosmetic composition comprising, in a physiologically acceptable medium, at least: a silicone polymer selected from silicone-polyurethane and silicone-acrylate polymers, a lipophilic polycondensate of the polyamide type, a non-volatile silicone oil, phenylated or non-phenylated, a volatile oil, and optionally at least one coloring agent. Figure: none

The present technology provides a curable silicone-based composition comprising a hybrid silicone polymer, a catalyst, and a filler. The present technology provides a curable silicone composition comprising a polymer A comprising an organic molecule or a siloxane molecule comprising an alkoxy radical, a hydroxyl radical, an isocyanate radical, a primary amine, or a carboxylic radical; optionally a polymer B comprising an organic molecule, a siloxane molecule, or a hybrid-siloxane molecule; a catalyst; and a filler.

Disclosed in the present invention are an organosilicon polymer-benzoxazine-epoxy resin hybrid encapsulation material and a preparation method therefor. The organosilicon polymer-benzoxazine-epoxy resin hybrid encapsulation material is prepared from raw materials comprising the following components: organosilicon-modified benzoxazine SMB, organosilicon-modified epoxy resin SME, bisphenol A benzoxazine resin, aliphatic epoxy resin, an organosilicon polymer, a catalyst, a crosslinking agent, and a powder filler. The organosilicon-modified benzoxazine SMB is a mixture prepared from a BZ compound, vinyltrimethoxysilane and double-end hydrogen-containing silicone oil by means of a hydrosilylation reaction under the catalysis of a platinum catalyst; and the organosilicon-modified epoxy resin SME is a mixture prepared from an allyl glycidyl ether, vinyltrimethoxysilane and double-end hydrogen-containing silicone oil by means of a hydrosilylation reaction under the catalysis of a platinum catalyst. The encapsulation material has low gas permeability, low internal stress, good flexibility, and excellent cold and hot aging resistance.