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52results about How to "Increased cross-linking rate" patented technology
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Ethylene-vinyl acetate copolymer packaging thin film
InactiveCN102391568AEnhanced network structureImprove moisture resistancePhotovoltaic energy generationSemiconductor devicesPolymer scienceNetwork structure
The invention discloses an ethylene-vinyl acetate copolymer packaging thin film, which is used for packaging solar cell components. The thin film is prepared from the following raw materials in part by weight: 100 parts of an ethylene-vinyl acetate copolymer, 0.1 to 2.0 parts of crosslinking agent, 0.1 to 10.0 parts of aid crosslinking agent and a proper amount of aid. The ethylene-vinyl acetate copolymer contains 25 to 33 percent of vinylacetate, and the ratio of the amount of the aid crosslinking agent and the crosslinking agent is 1:10 to 10:1. In the invention, the introduction of the aid improves the network structure of crosslinked resin, improves crosslinking efficiency, greatly reduces the dosage and residue of the crosslinking agent greatly and avoids aging phenomenon caused by residual crosslinking agent, and the prepared thin film has higher dampness and heat resistance, high ultraviolet resistance, high thermal-oxidative aging resistance and the like and has long service life.
Owner:DONGFANG TURBINE CO LTD
EXTRACTION OF cfDNA FROM BIOLOGICAL SAMPLES
ActiveUS20170283788A1Increased riskDiagnose diseaseMicrobiological testing/measurementElectrical/wave energy microorganism treatmentHydrogenAcoustic energy
Focused acoustic treatment of samples including a target biomolecule, such as cfDNA, may aid in the recovery of the biomolecule from a sample. cfDNA in a sample, whether chemically stabilized or not, may be linked or otherwise bound to histones or other proteins, e.g., by hydrogen bonds of histones or chaperone proteins to DNA and / or covalent crosslinks of such proteins to the DNA. Focused acoustic energy may remove or disrupt such links, aiding in isolation of the cfDNA from the sample.
Owner:COVARIS INC
Moisture-cured silicone modified polyurethane and hot melt adhesive composition and preparation method thereof
InactiveCN102492389AGood adhesionHigh molecular weightPolyureas/polyurethane adhesivesPolymer scienceUltraviolet lights
The invention discloses a moisture-cured silicone modified polyurethane and hot melt adhesive composition. The composition comprises the following raw materials by weight: 60 to 80 percent of silicone modified polyurethane, 10 to 20 percent of tackifying resin, 1 to 8 percent of plasticiser, 0.5 to 2 percent of viscosity reducing additive, 0.2 to 1 percent of organosilicon additive, 3 to 8 percent of inorganic filler, 0.05 to 0.5 percent of anti-oxidant, and 0.05 to 0.5 percent of ultraviolet light absorber. The invention further discloses a preparation method of the composition. The invention has the advantages that the composition can be cross-linked fast and completely; the viscosity, the solidification foaming phenomenon and the bonding performance of a hot melt adhesive system are improved; the purposes of no bubble, no odor, low construction viscosity and the like are realized; the final strength is favorable; and solidification without bubbles can be realized on the condition that a layer is 2 mm in thickness.
Owner:GUANGZHOU BAIYUN CHEM IND
Curable silicone compositions
InactiveUS20090088524A1Increased cross-linking rateOrganic-compounds/hydrides/coordination-complexes catalystsCatalystsChemistryHydrosilylation
The present invention relates to silicone compositions which can be crosslinked thermally by hydrosilylation, a process for producing them, platinum catalysts used for this purpose and the use of the crosslinkable compositions.
Owner:WACKER CHEM GMBH
Crosslinkable compositions based on organyloxysilane-terminated polymers
InactiveCN104185668AGood storage stabilityIncreased cross-linking rateAdhesive processesNon-macromolecular adhesive additivesAdhesiveGas phase
The invention relates to crosslinkable compositions of silane-crosslinking prepolymers comprising (A) 100 parts by weight of silane-crosslinking polymers of the formula (I): Y-[(CR1 2)b-SiRa(OR2)3-a]x, where the radicals and indices are each as defined in claim 1, (B) 5 to 100 parts by weight of fumed silica comprising (B1) fumed hydrophilic silica and (B2) fumed hydrophobic silica, with the proviso that (B1) and (B2) are used in a mass ratio of 10:1 to 1:10, to processes for production thereof and to the use thereof as adhesives and sealants, especially for bonding of substrates.
Owner:WACKER CHEM GMBH
Aziridine crosslinked acrylate resin two-component water-based automobile coating and preparation method thereof
The invention discloses aziridine crosslinked and solidified acrylate resin two-component water-based automobile coating and a preparation method thereof. Water-dispersed acrylate resin used for preparing the two-component water-based coating is prepared by initiating polymerization by virtue of a free radial initiator in an organic cosolvent by a mixture of a monomer component A, a monomer component B and a monomer component C, and then an amine neutralizer is added for neutralization to form aqueous dispersion. The aziridine crosslinked acrylate resin two-component water-based automobile coating is formed by mixing water-dispersed acrylate resin, an aziridine crosslinking agent and other auxiliaries, a paint film formed after spraying and solidification has high gloss, high hardness, high impact resistance and excellent water resistance, interlayer bonding is tight, firm adhesion on a substrate is achieved, and operating requirements of automobile coating are met.
Owner:GUANGDONG YATU CHEM
Recombinant collagen injectable hydrogel and preparation method thereof
ActiveCN112316214AIncreased cross-linking rateGood biocompatibilityAerosol deliveryOintment deliverySodium phosphatesSodium glycerophosphate
The invention relates to recombinant collagen injectable hydrogel and a preparation method thereof, and aims to solve the problems that materials such as animal collagen and sodium hyaluronate and thelike used in the field of soft tissue filling at present still have rejection problems such as chronic inflammation and allergy and the like although having good effects, and the cross-linking agentsused are mostly chemical cross-linking agents, such as 1, 4-butanediol diglycidyl ether, beta-sodium glycerophosphate, and the like. If the residual amount of the cross-linking agent exceeds a limitvalue, toxicity is generated to a human body. In order to solve the problems of the existing hydrogel material, the recombinant collagen injectable hydrogel is constructed, the recombinant collagen isselected as a hydrogel main body, and enzyme is used as a catalyst. Compared with the traditional hydrogel, the hydrogel prepared by the invention has excellent biocompatibility, can be molded in situ and has the effects of promoting cell growth and resisting inflammation.
Owner:SHAANXI GIANT BIOTECHNOLOGY CO LTD
Moisture-curing hot-melt adhesive compound containing polyaldimine
InactiveUS20100291368A1Good ultimate strengthStable storagePolyureas/polyurethane adhesivesSynthetic resin layered productsIsocyanate compoundCarbonic acid
The present invention relates to moisture-reactive hot-melt adhesive compounds, comprising at least one polyurethane polymer P which is solid at room temperature and which has isocyanate groups, at least one polyaldimine ALD of the formula (Ia) or (Ib), and at least one acid K in the form of an organic monocarbon acid, or dicarbon acid, or an organic monosulphonic acid, or disulphonic acid, or a compound which can be hydrolyzed to give one of these acids. These hot-melt adhesive compounds cure without bubbles and exhibit exceptionally quick crosslinking speed and good strength after crosslinking.
Owner:SIKA TECH AG
Thermoplastic elastomer composition and production method of the same
InactiveUS20080021145A1Good extrusion processing performanceUnacceptable appearancePigment pastesPolyolefinAlpha-olefin
It is an object of the present invention to provide an olefin thermoplastic elastomer composition which, through dynamic crosslinking of an olefin resin and an ethylene-α-olefin copolymer rubber as polymer components, has excellent appearance of the extrusion molding while also having excellent physical properties such as compression set and tensile strength. The present invention is directed to a method for producing a thermoplastic elastomer composition having the steps of: dynamically heat treating the following components (A) to (D); adding a component (E) to a resulting composition; and kneading the resulting mixture, and a thermoplastic elastomer composition obtained by the production method,(A): 40 to 95 parts by weight of an ethylene-α-olefin-based copolymer rubber;(B): 5 to 60 parts by weight of a polyolefin-based resin;(C): 0.1 to 20 parts by weight of a halogenated alkylphenolic resin-based crosslinking agent;(D): 0.001 to 0.7 part by weight of iron oxide; and(E): 0.1 to 20 parts by weight of a halogen capturing agent.
Owner:SUMITOMO CHEM CO LTD
Optical fiber with epoxidized polyolefin based coating
An optical fiber having at least one epoxidized polyolefin based polymer coating. The coating is formed from a crosslinkable composition having (a) at least one epoxidized polydiene oligomer having a first and a second end, the oligomer having at least one hydrocarbon chain that is substantially free of ethylenic double bonds, at least one epoxide group at the first end and at least one reactive functional group at the second end; (b) at least one hydrogenated polydiene oligomer having at least one reactive functional group capable of reacting with the epoxide groups; and (c) at least one photo-initiator. Preferably, the coating is a primary coating coated with a secondary coating.
Owner:PRYSMIAN CAVI E SISTEMI ENERGIA
Ethylene-vinyl acetate copolymer, method for preparing same, and solar cell packaging sheet using same
ActiveCN109694444AFast cross-linkingIncreased cross-linking ratePhotovoltaic energy generationSemiconductor devicesVinyl acetateDeconvolution
The invention relates to an ethylene-vinyl acetate copolymer. Ethylene Vinyl Acetate (EVA) copolymer resin, a method for preparing the same, and a solar cell packaging sheet using the same. More particularly, the present invention relates to an EVA copolymer resin for a solar cell packaging sheet, in which the EVA copolymer resin is used from GPC- The high molecular weight (HMW) component fraction(FHMW) and the low molecular weight (LMW) component fraction (FLMW) of the EVA copolymer resin measured by LSD deconvolution are respectively less than 10% and less than 40%.
Owner:HANWHA TOTAL ENERGIES PETROCHEMICAL CO LTD
Method for forming insulating film, apparatus for processing substrate, and system for processing substrate
ActiveUS11315784B2Quality improvementIncrease productionPretreated surfacesSemiconductor/solid-state device manufacturingWaferingPhysical chemistry
There is provided a technique of forming an insulating film containing silicon oxide. A coating solution containing polysilazane is applied onto a wafer W, the solvent of the coating solution is volatilized, and the coating film is irradiated with ultraviolet rays in nitrogen atmosphere before performing a curing process. Dangling bonds are generated in silicon which is a pre-hydrolyzed site in polysilazane. Therefore, the energy for hydrolysis is reduced, and unhydrolyzed sites are reduced even when the temperature of the curing process is 350° C. Since efficient dehydration condensation occurs, the crosslinking rate is improved, and a dense (good-quality) insulation film is formed. By forming a protective film on the surface of the coating film to which ultraviolet rays irradiated, the reaction of dangling bonds prior to the curing process is suppressed.
Owner:TOKYO ELECTRON LTD
Cross-linkable products based on organosilicon compounds
The invention relates to cross-linkable products based on organosilicon compounds and exhibiting biostatic properties and to a method for the production and use thereof, wherein the inventive cross-linkable products contain organosilicon compounds of quaternary ammonium groups.
Owner:WACKER CHEM GMBH
Optical fiber with epoxidized polyolefin based coating
InactiveUS6996318B2Improved propertyReduce volatilityOptical fibre with multilayer core/claddingSpecial surfacesPolymer sciencePolyolefin
An optical fiber having at least one epoxidized polyolefin based polymer coating. The coating is formed from a crosslinkable composition having (a) at least one epoxidized polydiene oligomer having a first and a second end, the oligomer having at least one hydrocarbon chain that is substantially free of ethylenic double bonds, at least one epoxide group at the first end and at least one reactive functional group at the second end; (b) at least one hydrogenated polydiene oligomer having at least one reactive functional group capable of reacting with the epoxide groups; and (c) at least one photo-initiator. Preferably, the coating is a primary coating coated with a secondary coating.
Owner:PRYSMIAN CAVI E SISTEMI ENERGIA
High-dielectric constant epoxy resin composition and preparation method thereof
The invention relates to a high-dielectric constant epoxy resin composition. The high-dielectric constant epoxy resin composition is characterized by being composed of main components of epoxy resin, curing agent, curing agent promoter, high-dielectric constant filler, stress absorbing agent and fumed silica, wherein the epoxy resin contains either of the following formulas of (1) and / or (2); the curing agent is phenolic resin and contains a formula of (3); the weight percentage of the epoxy resin in the high-dielectric constant epoxy resin composition is 1-25%, preferably, 2-18%; the weight percentage of the curing agent in the high-dielectric constant epoxy resin composition is 0.01-2%, preferably, 0.05-1%. The invention also discloses a preparation method of the high-dielectric constant epoxy resin composition. By optimizing the type of the epoxy resin composition, the type of phenolic resin composition and the type and the adding method of the stress absorbing agent, the invention provides the high-dielectric constant epoxy resin composition, which is low in porosity, capable of ensuring die mark to be within an acceptable range, low in warpage and high in reliability.
Owner:JIANGSU HHCK NEW MATERIAL CO LTD
Flexible substrate for a semiconductor package, method of manufacturing the same, and semiconductor package including flexible substrate
ActiveUS8110918B2Manufacturing cost be reduceImproved yieldInsulating substrate metal adhesion improvementSemiconductor/solid-state device detailsEngineeringMetallic materials
A flexible substrate used in a semiconductor package, a method of manufacturing the same, and a semiconductor package including the flexible substrate. A circuit pattern forming region is formed in an insulating substrate with a dented shape and a circuit pattern formed of a metallic material is formed in the circuit pattern forming region.
Owner:SAMSUNG ELECTRONICS CO LTD
Fluorocarbon paint with excellent curing property and preparation method thereof
ActiveCN108977072AIncreased hydroxyl value contentHigh activityCoatingsPolyvinyl alcoholPolyethylene glycol
The invention discloses fluorocarbon paint with excellent curing property and a preparation method thereof, and relates to the technical field of coatings. The fluorocarbon paint is prepared from a main material and a curing agent composition, wherein the main material is prepared from a modified fluorocarbon resin mixture, an extinction powder, a flatting agent and an organic dispersant, and thecuring agent composition is prepared from polyvinyl formal, amino resin, deionized water, bicarbonate and polyethylene glycol. According to the fluorocarbon paint and the preparation method thereof, the fluorocarbon resin mixture is modified, so that the fluorocarbon resin mixture can be more easily cured by a curing agent, meanwhile, bicarbonate can obviously increase the curing rate, and the stability of the curing agent composition is improved.
Owner:安徽博泰氟材料科技有限公司
Light curable colored coating
InactiveUS20150203688A1Increased cross-linking rateEfficaciously accelerating curing rateLuminescent paintsSynthetic resin layered productsPhotoinitiatorPhotochemistry
The present invention provides a light curable colored coating, comprising a photoinitiator, a UV resin and a UV photosensitive phosphor, wherein the light curable colored coating is formed by mixing and then separating the photoinitiator, the UV resin and the UV photosensitive phosphor, wherein the mixture is applied to a substrate thereafter, and thus the curing time of the light curable colored coating is largely shortened.
Owner:CHUNG CHIH HUNG
SBS modified asphalt concrete and preparation method thereof
The invention relates to SBS modified asphalt concrete and a preparation method thereof, and relates to the technical field of pavement paving materials. The SBS modified asphalt concrete comprises the following components by weight: 300-500 parts of coarse and fine aggregate, 15-30 parts of asphalt, 1.5-3.5 parts of SBS and 0.5-1.5 parts of cross-linking agent particles, wherein the cross-linkingagent particles comprise the following components in parts by weight: 65-85 parts of liquid coumarone resin, 15-25 parts of sulfur, 5-10 parts of trichloromethane and 1-2 parts of an organic tin stabilizer; the preparation method comprises the following steps: S1, preheating asphalt, and heating the asphalt to a softened state; S2, adding SBS into the asphalt treated in the step S1, uniformly stirring the SBS and the asphalt, and modifying the asphalt to obtain SBS modified asphalt; S3, adding the coarse and fine aggregates and the cross-linking agent particles into the SBS modified asphalt,and uniformly stirring the mixture at the rotating speed of 40r / min to obtain a finished product. The prepared concrete has good stability, and the problem of poor stability in the prior art is solved.
Owner:安徽华仁路桥工程有限公司
SBS modified asphalt stabilizer and preparation method thereof
The invention discloses a stabilizer, in particular to a stabilizer used for SBS modified asphalt and a preparation method thereof; the stabilizer is prepared from the following raw materials according to the parts by weight: 0.5-5 parts of sulfur, 0.2-5 parts of aromatic heterocyclic multifunctional olefin monomers and 90-100 parts of aromatic heavy oils. The invention adopts sulfur as main reactant and aromatic heavy oils as dispersant; the reactant and the reaction promoter can be dissolved in the dispersant to promote the uniform mixing between the reactant and a reaction promoter, increase the uniformity of the reaction of the stabilizer and substrate asphalt and avoid the agglomerate phenomenon caused by locally over crosslinking; the heterocyclic multifunctional olefin monomers areused as the reaction promoter so as to increase the reaction efficiency of the main reactant and the crosslink rate. The invention solves the problems well that SBS is easy to separate from the substrate asphalt and the storage is not stable in the production process of SBS polymer modified asphalt.
Owner:XIAN ZHONGLI ASPHALT CO LTD
A kind of high dielectric constant epoxy resin composition and preparation method thereof
Owner:JIANGSU HHCK NEW MATERIAL CO LTD
Cable comprising crosslinked layer obtained from polymer composition
PendingCN110467770AIncreased cross-linking rateReduced stabilityPlastic/resin/waxes insulatorsInsulated cablesPolymer scienceCross linker
Owner:NEXANS
Crosslinked polyvinyl chloride material and preparation method thereof
InactiveCN111925603AIncreased cross-linking rateIncrease the degree of cross-linkingPolymer scienceVulcanization
The invention discloses a crosslinked polyvinyl chloride material and a preparation method thereof. The crosslinked PVC material is prepared from the following raw materials in parts by weight: 100 parts of PVC, 1-3 parts of a crosslinking agent, 5-20 parts of an acid acceptor, 2-5 parts of a stabilizer, 5-45 parts of a plasticizer and 0.2-1.5 parts of a lubricant. The preparation method comprisesthe following steps: putting the materials into a high-speed stirrer, stirring at a high speed for 10-15 minutes to uniformly mix all materials, carrying out melt blending on the mixture in a double-roller plastic mixing mill, discharging sheets, carrying out vulcanization molding in a press vulcanizer, transferring into a plate cold press, shaping, and finally cutting as required. By using the novel cross-linking agent, the cross-linking rate can be increased, the cross-linking degree can be improved, high cross-linking density can be achieved in a short time, time can be saved, and the efficiency can be improved. The obtained material is excellent in mechanical property, the heat resistance is obviously improved, and the use requirements of various materials can be met at a high temperature.
Owner:TIANJIN UNIV OF SCI & TECH
Polyethylene having high degree of cross-linking, and cross-linked polyethylene pipe comprising same
ActiveCN113366033AIncreased cross-linking rateShorten crosslinking timeRigid pipesPolymer scienceCross-linked polyethylene
The present invention relates to polyethylene having a high degree of cross-linking, and a cross-linked polyethylene pipe comprising the same. The polyethylene according to the present invention has an ultra-high molecular weight so as to have increased cross-linking speed, thereby exhibiting a sufficient degree of cross-linking even when cross-linking time is short, and thus exhibiting the excellent strength and pressure resistance.
Owner:LG CHEM LTD
High-strength flashover preventing aluminum alloy for electric power fittings and preparation method of high-strength flashover preventing aluminum alloy
InactiveCN109554637AReasonable structural optimizationImprove mechanical propertiesRare earthElectric power
The invention provides a high-strength flashover preventing aluminum alloy for electric power fittings and a preparation method of the high-strength flashover preventing aluminum alloy. The high-strength flashover preventing aluminum alloy is prepared from the following compositions in parts by weight: 50-70 parts of aluminum alloy ingots, 4-6 parts of nano-titanium dioxide, 2-4 parts of sepiolitefibers, 2.5-3 parts of acetylene carbon black, 1-4 parts of nitride micro powder, and further comprises 0-2 parts of chromium ore, 0-3 parts of activated zinc oxide, 0-3 pars of rare earth oxide, and0.05-0.2 part of a foaming agent. According to the high-strength flashover preventing aluminum alloy for the electric power fittings and the preparation method of the high-strength flashover preventing aluminum alloy, the microstructure of the aluminum alloy is reasonably optimized through reasonable raw material selection and process improvement; by doping and combining with additional ingredients, excellent mechanical performance and flashover preventing performance are achieved, weather resistance, corrosion resistance and the like are also significantly improved, and comprehensive performance is improved remarkably.
Owner:段涛
Manufacturing process of touch film
ActiveCN113956402AAvoid oxygen inhibitionEvenly dispersedSynthetic resin layered productsPolymer scienceHexanediol diacrylate
The invention discloses a manufacturing process of a touch film. The touch film comprises a transparent base material, a sensing layer and a writing layer; a UV printing layer is obtained by UV printing material under ultraviolet irradiation, and the UV printing material is obtained by the following steps: mixing aliphatic polyurethane triacrylate, 1, 6-hexanediol diacrylate, ethylene glycol diglycidyl ether, castor oil polyglycidyl ether and alkyl modified organosiloxane into a stirring dispersion machine, and mixing at a stirring speed of 400-600r / min for 10-15min to obtain a material; and feeding the obtained material 2 into the bead mill, and grinding until the particle size is 300-400nm to obtain the UV printing material. According to the manufacturing process of the touch film, the crosslinking rate of all components in the UV printing material is improved, so that the UV printing material can be cured without too much heat energy, and the oxygen inhibition phenomenon of the UV printing material is effectively avoided.
Owner:UC NANO TECH CO LTD
Writable touch film manufacturing process
ActiveCN109213376AAvoid oxygen inhibitionEvenly dispersedSynthetic resin layered productsCoatingsPolymer scienceKetone
A technology for manufacturing a writable touch film is disclosed. The UV printing material is obtained by the following steps: step 1, putting the aliphatic polyurethane triacrylate, 1, 6 hexanedioldiacrylate, ethylene glycol diglycidyl ether, castor oil polyglycidyl ether and alkyl modified organosiloxane into a stirring and dispersing machine for mixing to obtain the material 1; 2, adding theweight parts of the hydroxymethyl butyl ester, the organic thermoset polymethylurea resin, 4- Acryloylmorpholine, 2-Hydroxyl-2-Methyl-1-Phenyl-1-Acetone, sulfonyloxy ketone and coloring pigment, further mixing to obtain material 2; Step 3, the material 2 obtained in the step 2 is sent to a bead mill for grinding until the particle size is 300-400nm, and UV printing material is obtained. The invention can write the manufacturing process of the touch film, and the prepared UV printing layer has high printing accuracy, high curing hardness and scratch resistance.
Owner:UC NANO TECH CO LTD
Extraction of cfDNA from biological samples
ActiveUS10781439B2Establishing prognosisIncreased riskMicrobiological testing/measurementElectrical/wave energy microorganism treatmentAcoustic energyChaperonin
Owner:COVARIS INC
Photocureable coating for teaching blackboard
ActiveCN113563793AAvoid oxygen inhibitionEvenly dispersedPolyurea/polyurethane coatingsPolymer scienceMeth-
Owner:UC NANO TECH CO LTD
Coating material for wear-resistant teaching blackboards, and preparation method of coating material
ActiveCN109266209AAvoid oxygen inhibitionIncreased cross-linking rateWriting boardsPolyurea/polyurethane coatingsMorpholineWear resistant
The invention discloses a coating material for wear-resistant teaching blackboards, and a preparation method of the coating material. The coating material for the wear-resistant teaching blackboards is prepared from the following components: aliphatic polyurethane triacrylate, 1, 6 hexanediol diacrylate, ethylene glycol diglycidyl ether, alkyl modified polysiloxane, 2-methyl methacrylate, hydroxyltoluene butyl ester, organic thermosetting polymethyl urea resin, 4-acryloyl morpholine, sulfonyloxy ketone, 2-hydroxy-2-methyl-1-phenyl-1-acetone and Pigment BK7. The invention provides the coatingmaterial for the wear-resistant teaching blackboards and the preparation method of the coating material; the coating material is rapid in curing speed and strong in adhesion to a base material; secondly, the viscosity between the components of the coating material can be reduced, the inkjet smooth printing is facilitated, a spray nozzle is not easily blocked, and the yield is high; furthermore, the viscosity and surface tension of the coating material containing the Pigment BK7 are reduced, and the stability is good.
Owner:UC NANO TECH CO LTD
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