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10094 results about "Elastomer" patented technology

An elastomer is a polymer with viscoelasticity (i.e., both viscosity and elasticity) and has very weak intermolecular forces, generally low Young's modulus and high failure strain compared with other materials. The term, a portmanteau of elastic polymer, is often used interchangeably with rubber, although the latter is preferred when referring to vulcanisates. Each of the monomers which link to form the polymer is usually a compound of several elements among carbon, hydrogen, oxygen and silicon. Elastomers are amorphous polymers maintained above their glass transition temperature, so that considerable molecular reconformation, without breaking of covalent bonds, is feasible. At ambient temperatures, such rubbers are thus relatively soft (E ≈ 3 MPa) and deformable. Their primary uses are for seals, adhesives and molded flexible parts. Application areas for different types of rubber are manifold and cover segments as diverse as tires, soles for shoes, and damping and insulating elements. The importance of these rubbers can be judged from the fact that global revenues are forecast to rise to US$56 billion in 2020.

Elastomeric door for medical fluid treatment machine

Provided herein is a peritoneal dialysis (“PD”) system comprising a housing and one or more doors comprising elastomeric properties. Each of the one or more doors comprises one or more features configured to couple to one or more features of the housing. Further, each door includes one or more inserts molded between two layers of elastomeric material where the features are coupled to. The doors are configured to cover and thermally insulate one or more PD fluid lines when in a closed configuration. The doors are also configured to transition to an open configuration to provide access to one or more PD fluid lines for treatment.
Owner:VANTIVE US HEALTHCARE LLC +1

Racket

A racket comprises a handle and a body connected to the handle. The body includes a core layer, a first surface layer, a first inner layer disposed so as to sandwich the first surface layer with the core layer, and a first outer layer disposed so as to sandwich the first inner layer with the first surface layer. The first inner layer is an elastic body. The first outer layer has a higher stiffness than the first inner layer. The core layer has a higher stiffness than the first inner layer.
Owner:MIZUNO CORPORATION

Ethylene-vinyl acetate copolymer modified polypropylene high-toughness plastic particle and preparation process thereof

InactiveCN120737496AIsooctyl acrylateElastomer
The invention relates to the technical field of high polymer materials, in particular to ethylene-vinyl acetate copolymer modified polypropylene high-toughness plastic particles and a preparation process thereof. The composite material is prepared from the following raw materials in parts by weight: 60 to 80 parts of polypropylene, 15 to 30 parts of ethylene-vinyl acetate copolymer, 5 to 10 parts of maleic anhydride-2-ethylhexyl acrylate copolymer grafted ethylene-vinyl acetate copolymer, 3 to 8 parts of nano silicon dioxide / graphene quantum dot composite filler, 5 to 12 parts of polyolefin elastomer, 0.5 to 2 parts of antioxidant and 0.5 to 2 parts of lubricant. The content of vinyl acetate in the ethylene-vinyl acetate copolymer is 20-33 wt%, the composite filler is modified through a silane coupling agent KH-560, the grafting rate of the grafted ethylene-vinyl acetate copolymer is 1.5-3.5 wt%, and the composite filler is prepared through a melt grafting method. Through multi-component collaborative design and process optimization, the low-temperature toughness, rigidity, heat resistance and aging resistance of the material are improved, the problems of rigidity and toughness imbalance, low-temperature brittleness, poor stability and the like of a traditional modification system are solved, and the material is excellent in comprehensive performance and wide in application range.
Owner:NINGBO YINHU INNOVATION MATERIAL CO LTD

Antibacterial breathable yarn and antibacterial breathable socks thereof

ActiveCN119736740APanty-hoseYarnYarnElastomer
The invention relates to the field of textile materials, and provides an antibacterial breathable yarn obtained by blended spinning of polyester fibers, polyamide fibers, cotton fibers and elastic fibers. The polyester fiber is prepared through melt blending and spinning processes and comprises polyethylene glycol terephthalate slices, modified chitosan zinc oxide, an antioxidant 1010, a POE elastomer, polyether modified silicone oil and polyethylene glycol 200, and the modified chitosan zinc oxide is prepared by compounding chitosan cinnamyl aldehyde Schiff base and silane modified zinc oxide. The chitosan cinnamyl aldehyde Schiff base is prepared through a Schiff base condensation reaction of chitosan and cinnamyl aldehyde, and the silane modified zinc oxide is prepared from nano rod-shaped zinc oxide particles modified by isocyanate propyl triethoxy silane. The yarn has excellent antibacterial property, air permeability and flexibility and is further used for knitting antibacterial breathable socks, the knitting density of the sock bottom part is reduced to enhance the air permeability, the knitting density of the sock opening part is improved to improve the elasticity and the fitting degree, and the yarn has wide application value.
Owner:ZHUJI BAOREN DYEING & FINISHING CO LTD

Preparation method of nylon elastomer

PendingCN119931034AElastomerPolymer science
The invention discloses a nylon elastomer preparation method, which comprises: S1, weighing preparation raw materials of a nylon elastomer according to a feeding ratio, and weighing the preparation raw materials by using a weighing device, the nylon elastomer is prepared from the following raw materials: tridecane diamine, tridecane dibasic acid, dodecanediamine, dodecanedioic acid, undecanediamine, undecanedioic acid, decamethylene diamine, sebacic acid, pentamethylene diamine, glutaric acid, hexamethylenediamine, adipic acid, caprolactam, and one or more of polyether amine and polyether alcohol; and S2, feeding the preparation raw materials weighed in the step S1. In the preparation process of the nylon elastomer, the nylon elastomer with different melting points, different crystallization temperatures, different strengths and different elongation at break is produced by adopting a multi-component copolymerization mode and adjusting the types and the molecular weights of polyether amine and polyether alcohol by adjusting the types and the proportions of binary acid and diamine, so that the nylon elastomer is suitable for different use environments; the utilization rate is improved.
Owner:HENAN XIANNING NEW MATERIAL TECH RES INST CO LTD

Long-acting, stable, flexible, impact-resistant and resistance-reducing protective film and preparation process thereof

The invention relates to the technical field of polyurethane films, in particular to a long-acting, stable, flexible, impact-resistant and resistance-reducing protective film and a preparation process thereof. According to the invention, the raw materials such as polyethylene glycol, a modified fluorosilicone monomer, isophorone diisocyanate, hydroxyethyl acrylate, an acrylic antifouling monomer, dodecafluoroheptyl methacrylate and the like are added to prepare the anti-drag coating. Mixing a polyurethane thermoplastic elastomer, aminopropyl polydimethylsiloxane, an antioxidant and an ultraviolet light absorber, and carrying out melt extrusion and blow molding to form a film, so as to obtain a flexible impact-resistant base film; and uniformly coating the surface of the flexible anti-impact base film with the anti-drag coating, and carrying out ultraviolet curing to obtain a finished product. The finished product prepared by the invention has good impact resistance, and can effectively reduce frictional resistance, so that the finished product has wide application prospects in the technical field of polyurethane films.
Owner:FEILINKE NEW MATERIALS (NANTONG) CO LTD +1

Light and high-strength foaming fabric and preparation method thereof

The invention provides a high-strength, light and supercritical foaming fabric and a preparation method thereof, complete fibers used by the fabric comprise core layer fibers and a skin layer material, the outer side of the core layer fibers is uniformly coated with the skin layer material, and the skin layer material can be foamed; the core layer fiber is at least one of aramid fiber, polyarylate fiber, polyimide fiber, ultra-high molecular weight polyethylene fiber, polyester fiber and polyamide fiber; and the skin layer is made of thermoplastic elastomer resin. The preparation method comprises the following steps: uniformly coating the outer side of the core layer fiber with the skin layer material, and then carrying out supercritical foaming on the skin layer material. According to the invention, the contradictory technical requirements of the fabric for shoes on strength, light weight, comfort and the like are solved in a simple mode; the body strength of the fiber for the shoes can be kept, and the characteristics of light weight and air permeability of the foaming fabric are also achieved; the difficulty of direct foaming of the fabric / fiber for shoes is reduced, and the vamp fabric and the shoe article which are uniform in foaming, breathable, light in weight, high in strength and soft can be obtained.
Owner:LI NING (CHINA) SPORTS GOODS CO LTD

Systems and methods for manufacturing a foam component

A method of manufacturing a foam component includes generating, via a computer aided design (CAD) software, three-dimensional data corresponding to the foam component. The method further includes scaling, using the CAD software, the three-dimensional data to correspond to a preform. The preform is smaller than the foam component based on a scaling factor. The method further includes fabricating the preform from a thermoplastic elastomer and adding a foaming agent to the preform. The method further includes foaming the preform by exposing the preform to a target temperature for a target time via a heat generating device.
Owner:PUMA SE

Bucket rod composite damping device and excavator

The invention relates to the technical field of excavator bucket rods, and provides a bucket rod composite damping device and an excavator. The device comprises a shell composed of a base, an outer shell and a stress shell; the magneto-rheological buffer device is installed in the shell and composed of a lattice structure made of magneto-rheological elastomer materials and magneto-rheological fluid filled in gaps corresponding to the lattice structure, and a plurality of sound absorption holes are formed in each cell element wall in the lattice structure; the electromagnetic device is located in a containing cavity formed in the lattice structure and is composed of a magnetic core and an electromagnetic coil; the anti-vibration pad and the stress plate are embedded in the top of the shell and are in contact with the stress plate; the damping springs are arranged on the periphery of the shell and fixedly connected between the stress plate and the base; the vibration monitoring module is used for collecting vibration data of the bucket rod in real time and transmitting the vibration data to the intelligent control module, and the intelligent control module is used for adjusting the output magnetic field intensity of the electromagnetic coil according to the vibration data so as to adjust the viscosity of the magnetorheological fluid in real time.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Plastic floor base material prepared from recycled PET (Polyethylene Terephthalate)

The invention discloses a plastic floor base material prepared from recycled PET, and relates to the technical field of floors, the base material is prepared by mixing a recycled PET material, stone powder, a chain extender, stearic acid, an oil body and an elastomer, the recycled PET material accounts for 15%-25%, the stone powder accounts for 65%-78%, the chain extender accounts for 0.4%-1%, the stearic acid accounts for 0.5%-2%, and the oil body accounts for 1%-3%. According to the present invention, the recycled PET is adopted as the adhesive to adhere the stone powder, and extrusion molding is performed through the extruder to prepare the plastic floor base material, such that the GRS and SCS certified products can be easily obtained, the PET product cannot be decomposed into the chlorine gas and the hydrogen chloride with the pungent odor like the conventional PVC plastic floor base material, and the recovered PET material has the more sources, such that the production cost is low, and the production efficiency is high. And the market is wider.
Owner:ZHEJIANG KINGDOM NEW MATERIAL GRP CO LTD

Polyethylene cable with flexibility and fire resistance and preparation method thereof

The invention discloses a polyethylene cable with flexibility and fire resistance and a preparation method of the polyethylene cable, and relates to the technical field of polyethylene cables, the polyethylene cable comprises a cable core and a polyethylene protective sleeve, the polyethylene protective sleeve comprises the following components, the plastic is prepared from the following components in parts by mass: 50 to 70 parts of low-density polyethylene, 20 to 30 parts of modified polyolefin elastomer, 10 to 25 parts of lignin modified copolymer, 0.5 to 1 part of antioxidant, 0.6 to 1.2 parts of zinc oxide and 1 to 2 parts of talcum powder. The modified polyolefin elastomer is prepared from POE-g-MAH (Polyolefin Elastomer-g-MAH) and a DOPO Schiff base derivative; the lignin modified copolymer is prepared from lauryl methacrylate, isobornyl methacrylate and a lignin macroinitiator.
Owner:YUNNAN CHUNCHENG CABLE MFG CO LTD

Heat-aging-resistant automobile wire processing technology

The invention discloses a heat-aging-resistant automobile wire processing technology, belongs to the technical field of wire processing, and is used for solving the technical problem that the heat aging resistance and the mechanical property of an automobile wire need to be further improved in the prior art. According to the method, modified polyvinyl chloride is taken as a raw material, a modified elastomer and a modified inorganic filler are taken as reinforcing materials, an auxiliary additive is taken as an auxiliary agent, a modified sheath material is prepared through melt grafting, the sheath material is extruded on the surface layer of the symmetrical cable, and the automobile wire is obtained. The heat aging resistance and mechanical property of the automobile wire are improved, and the flame retardant property of the automobile wire is also improved.
Owner:CHIDAQING NEW ENERGY TECHNOLOGY (SUZHOU) CO LTD

Shrinkage-resistant light, soft and elastic sole foaming material and preparation method thereof

ActiveCN121378942ASolesElastomerMicrosphere
The invention discloses an anti-shrinkage light, soft and elastic sole foaming material and a preparation method thereof, and belongs to the technical field of footwear products. The light, soft and elastic sole foaming material is formed by chemically foaming an EVA (Ethylene Vinyl Acetate) composite raw material, the EVA composite raw material is prepared from 50 to 70 parts of EVA, 20 to 40 parts of olefin thermoplastic elastomer, 10 to 20 parts of styrene elastomer, 1.5 to 3 parts of maleic anhydride grafted ethylene-octylene copolymer compatilizer, 0.4 to 0.8 part of peroxide cross-linking agent, 3 to 4 parts of foaming agent, 1 to 1.5 parts of zinc oxide, 1 to 1.5 parts of polyethylene wax substance and 0.5 to 1.5 parts of poly (butylene succinate). 0.3 to 1 part of polyamide 12 microspheres and 2 to 3 parts of nano montmorillonite. The foaming material can resist shrinkage when being used as a shoe sole part, and has good rebound performance and the like, so that the high-quality requirement of sneakers, the mass production stability and the like are met.
Owner:ANTA (CHINA) CO LTD

Multi-modal pressure sensor

The subject invention is concerned with systems and methods advantageously applying finite element analysis to establish design rules for a highly sensitive piezo-resistive pressure sensor with an output that is high enough to be detectable by simple and inexpensive circuits and therefore ensure wearability. Four frequently reported micro-feature shapes in micro-patterned piezo-resistive sensors are provided, where the micro-dome and micro-pyramid yield the highest sensitivity. Investigations of different conductivity values of micro-patterned elastomers show that coating the elastomer with a conductive material (e.g., a metallic coating) leads to higher current response when compared to composited conductive elastomers. Advantageous geometric parameters and spatial configurations of micro-pyramid design of piezo-resistive sensors are provided. Results show that an enhanced sensitivity and higher current output can be achieved by a lower spatial density configuration of three micro-features per millimeter length, a smaller feature size of around 100 μm, and a 60-50 degrees pyramid angle.
Owner:FLORIDA INTERNATIONAL UNIVERSITY

Degradable bamboo fiber composite material master batch and preparation method thereof

The invention relates to the technical field of degradable fibers, and discloses a degradable bamboo fiber composite material master batch and a preparation method thereof. The composite material is prepared from the following raw materials: modified bamboo fibers, modified polylactic acid, polyadipic acid / butylene terephthalate, a lubricant, an antioxidant and a plasticizer. The preparation method comprises the following steps: 1) performing alkali treatment and tannic acid-metal ion compound modification on the bamboo fibers to form a hydrophobic surface; 2) blending and modifying polylactic acid and bio-based elastomer polyhydroxybutyrate to construct a tough matrix; and 3) carrying out melt blending on the modified bamboo fiber, poly (adipic acid) / butylene terephthalate, the modified polylactic acid and an auxiliary agent, and then carrying out extrusion granulation. The degradable bamboo fiber composite material master batch prepared by the invention has good processability and mechanical properties, and can be widely applied to the fields of disposable tableware, packaging materials, agricultural plastic mulching films and the like.
Owner:FUJIAN YANGZHU NEW MATERIALS TECHNOLOGY CO LTD

Low-smoke halogen-free fireproof cable

The invention relates to the technical field of cables, in particular to a low-smoke halogen-free fireproof cable which comprises an outer sheath. The outer sheath is prepared from the following raw materials in parts by weight: 40 to 60 parts of low-density polyethylene, 20 to 30 parts of EVA resin, 10 to 20 parts of SEBS elastomer, 5 to 10 parts of POE-g-GMA, 5 to 10 parts of flame retardant, 15 to 30 parts of filler and 1 to 5 parts of additive; the flame retardant is composed of an organic component and a spinel type metal oxide; the organic components comprise a DOPO derivative and a nitrogen flame retardant, the prepared outer sheath granules have excellent mechanical properties and excellent fireproof and flame retardant properties, not only are high in flame retardant rating, but also are small in heat and smoke yield after combustion, and are excellent materials for preparing low-smoke halogen-free fireproof cables.
Owner:HUNAN GOLDEN CABLE ELECTRICAL TECH CO LTD

Wireline and slickline cables for downhole operations

In some embodiments, a cable can include an electrically conductive inner core. A first insulation layer can be disposed about the inner core. An electrically conductive layer can be disposed about the first insulation layer. A second insulation layer can be disposed about the electrically conductive layer. A first polymer jacket can be disposed about the second insulation layer. The first polymer jacket can include a first layer of armor strength members disposed therein. A second polymer jacket can be disposed about the first polymer jacket. The second polymer jacket can include a second layer of armor strength members disposed therein. An outer polymer jacket can be disposed about the second polymer jacket. At least one of the first polymer jacket, the second polymer jacket, and the outer polymer jacket can be formed from an aliphatic polyketone polymer, an ethylene-propylene copolymer, a polyolefin elastomer, a polypropylene, or a cross-linkable polyethylene.
Owner:SCHLUMBERGER TECH CORP

Finite element simulation-oriented elastomer constitutive model parameter machine learning optimization method and system

The invention relates to the technical field of artificial intelligence, and provides a finite element simulation-oriented elastomer constitutive model parameter machine learning optimization method, which comprises the following steps of: obtaining stress data and strain data in an elastomer mechanics experiment through steps S1-S4, and respectively carrying out standardization processing on the stress data and the strain data to obtain a training data set; constructing a plurality of parallel physical information neural networks, wherein each physical information neural network is provided with a loss function; and inputting the stress data and the strain data of the to-be-analyzed material into the physical information neural networks, and performing parallel calculation by each physical information neural network to obtain material parameters. Based on the triaxial tensile strain energy stability and prediction precision index, an optimal constitutive model is screened out, and the optimal constitutive model and model parameters are packaged into a callable module. The invention discloses a system applying the method, and the method and the system adopt a multi-physical information neural network parallel prediction and intelligent screening architecture to realize efficient and automatic analysis of the elastomer constitutive model.
Owner:SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN

Antiskid sole material and preparation method thereof

The invention belongs to the technical field of sole materials, and particularly discloses an anti-skid sole material and a preparation method thereof. The anti-skid sole material comprises a sole body, the sole body comprises an anti-skid layer and a rubber layer, and the anti-skid layer comprises the following raw material components in parts by weight; comprising 50-55 parts of polyurethane, 16-20 parts of a silicon carbide composite material, 10-14 parts of polyethylene composite fibers, 4-8 parts of a maleic anhydride grafted polyethylene octylene co-elastomer, 3-5 parts of a silane coupling agent, 1-2 parts of an antioxidant and 0.5-0.8 part of a lubricant. The anti-skid sole material prepared in the invention has excellent mechanical strength, skid resistance and wear resistance, and can provide protection for feet and prolong the service life of soles.
Owner:FUJIAN JOYYOU SPORTS GOODS

Polyethylene and silica gel mixed material, preparation method and composite optical cable silicon core tube

The invention relates to a polyethylene and silica gel mixed material, a preparation method thereof and application of the polyethylene and silica gel mixed material in a composite optical cable silicon core tube. The composite material comprises the following components in parts by weight: high-density polyethylene, an ethylene-siloxane copolymer elastomer, a maleic anhydride grafted polyolefin elastomer, hydroxylated nano silicon dioxide, liquid paraffin, a crystallization nucleating agent, an ultraviolet light absorber, an auxiliary stabilizer, a processing aid and color master batch. The liquid paraffin is formed by blending dual-molecular-weight paraffin with different carbon chain lengths, and part of the liquid paraffin is grafted and modified by polybutylene so as to enhance the anchoring capacity of the lubricating phase; in addition, nano cellulose crystals grafted by a PEG-PCL (Polyethylene Glycol-Polycaprolactone) block copolymer are introduced, so that the dimensional stability and the interface structure integrity of the material are synergistically enhanced. The composite material has excellent low friction, thermal oxidation stability, creep resistance and ultraviolet aging resistance, and is suitable for preparation of a high-performance composite optical cable silicon core tube.
Owner:SHANGHAI BST TUBING

High-elasticity waterproof cable based on blending of water-blocking powder and elastomer

The invention relates to the technical field of electric wires and cables, discloses a high-elasticity waterproof cable based on blending of water-blocking powder and an elastomer, and aims to solve the problems that in the prior art, during long-term dynamic service, interlayer separation is easily caused by interfacial stress superposition, so that elasticity attenuation and waterproof barrier damage are caused, and the service life is affected. According to the invention, the sodium polyacrylate water-blocking powder is subjected to composite modification and is blended with an elastomer matrix, modified nano silicon dioxide is matched for dispersion, an inner and outer layer gradient insulation structure is designed, and ultrasonic dispersion, nitrogen protection steam cross-linking and other processes are combined; the cable is sequentially provided with the conductor layer, the conductor shielding layer, the gradient insulation layer, the insulation shielding layer and the sheath layer from inside to outside, interface stress concentration is reduced, interlayer combination stability is enhanced, and the cable can still keep excellent elastic recovery capability and waterproof barrier integrity under high-frequency torsion and repeated dry-wet cycles.
Owner:RUIYANG GRP NORTHEAST CABLE CO LTD

Thermoplastic low-smoke halogen-free flame-retardant polypropylene cable material and preparation method thereof

The invention relates to the technical field of cable materials, in particular to a thermoplastic low-smoke halogen-free flame-retardant polypropylene cable material and a preparation method thereof. The modified thermoplastic low-smoke halogen-free flame-retardant polypropylene cable material is prepared from the following components in parts by weight: 30 to 36 parts of polypropylene, 12 to 16 parts of toughening agent, 10 to 16 parts of POE (Polyolefin Elastomer) compatilizer, 88 to 102 parts of flame retardant, 0.5 to 0.9 part of antioxidant, 1 to 2 parts of lubricant and 3 to 6 parts of modified nano particles, the modified nano particles are prepared from nano silicon dioxide and methyl methacrylate through graft polymerization. By adding the modified nanoparticles, the performance of the cable material is remarkably improved, so that the cable material achieves better balance and effect in the aspects of mechanical property, flame retardant property, electrical property, aging property, low-temperature property and the like.
Owner:HUIZHOU JINLONGYU CABLE IND DEV CO LTD

Reversible cross-linked polyolefin elastomer and preparation method thereof

PendingCN120248482AElastomerPolymer science
The invention belongs to the field of olefin polymers, and relates to a reversible cross-linked polyolefin elastomer and a preparation method thereof. The reversible cross-linked polyolefin elastomer is a reversible cross-linked polyolefin elastomer in which a cross-linked network is formed through three non-covalent bonds, namely hydrogen bonds, ionic bonds and coordinate bonds, and the hydrogen bonds and the cross-linked bonds account for 0.1-85% by taking the sum of the three non-covalent bonds, namely the hydrogen bonds, the ionic bonds and the coordinate bonds as 100%; the ionic crosslinking bond accounts for 0.5-90%; and the coordination crosslinking bond accounts for 9-99%. Compared with a reversible cross-linked polyolefin elastomer in the prior art, the reversible cross-linked polyolefin elastomer prepared by the invention contains hydrogen bonds, ionic bonds and coordinate bonds at the same time, and a synergistic effect is generated through combination of reversible cross-linked interaction of the coordinate bonds, the hydrogen bonds and the ionic bonds; therefore, the material has excellent physical and mechanical properties and also has recoverability and self-repairability.
Owner:CHANGZHOU HANWEI POLYMER CO LTD

Frisbee made of renewable and recyclable materials

InactiveCN120623601AToysElastomerPolyolefin
The invention relates to a renewable and recyclable material frisbee, and belongs to the technical field of sports, leisure and entertainment equipment preparation. The frisbee comprises the following raw materials in parts by weight: 20-70 parts of a recycled base material, 2-10 parts of a polyolefin elastomer, 5-25 parts of a modified bio-based filler, 0.2-1 part of an accelerant and 0-2 parts of an auxiliary material. The modified bio-based filler is prepared from active biological waste residues and a long alkyl chain silane coupling agent through surface treatment. According to the invention, the PCR base material and the modified bio-based filler are taken as main raw materials, and the POE elastomer, the accelerant and the auxiliary material are introduced, so that the PCR base material, the modified bio-based filler, the POE elastomer, the accelerant and the auxiliary material are matched with one another, and the flying disc which is moderate in hardness, comfortable to hold, stable in flying, environment-friendly and recyclable is obtained.
Owner:DONGGUAN CITY MATTER BASED SUSTAINABLE TECH CO LTD

Polyamide elastomer as well as preparation method and application thereof

PendingCN120647927AElastomerPolymer science
The invention relates to the technical field of material preparation, and discloses a polyamide elastomer and a preparation method and application thereof, and the preparation method of the polyamide elastomer comprises the following steps: mixing raw materials, and carrying out amidation reaction to obtain an amide compound; then adding a catalyst B, and carrying out polyesterification reaction to obtain a polyamide elastomer; the raw materials comprise binary acid, diamine, polyether glycol, a catalyst A and water, the reaction temperature of the amidation reaction is 150-180 DEG C, and the addition amount of the water is 20-40% of the total mass of the binary acid, the diamine and the polyether glycol. The polyamide elastomer which is relatively regular in structure and excellent in comprehensive performance can be prepared, the reaction efficiency can be effectively improved, and the preparation method is suitable for industrial large-scale production.
Owner:BEIJING UNIV OF CHEM TECH

Adjustable high pressure packing assembly

A packing assembly to be disposed within a stuffing box defined by a fluid end of a body of a reciprocating plunger pump includes an elastomeric component and a wear component. The elastomeric component has an at least partially tapered inner diameter and an outer diameter and, in use, engages the stuffing box on the outer diameter and is axially compressed within the stuffing box. The wear component sealably engaging the elastomeric component across the at least partially tapered inner diameter and dynamically contacts the plunger to form a dynamic seal.
Owner:THIRD COAST INNOVATION LLC

Elastomeric cushion members including perforated skins and related methods

Elastomeric cushion members may include a plurality of interconnected buckling walls including an elastomeric material. The interconnected buckling walls may together define a plurality of columns. A perforated skin may extend between at least some of the plurality of interconnected buckling walls of at least some of the plurality of columns. Methods of making elastomeric cushion members may involve interconnecting a plurality of buckling walls including an elastomeric material. The interconnected buckling walls may together define a plurality of columns. A perforated skin may be positioned to extend between at least some of the plurality of interconnected buckling walls of at least some of the plurality of columns.
Owner:PURPLE INNOVATION LLC

Composite structure for a pressure sensor and pressure sensor

A composite structure for a pressure sensor, a pressure sensor, a method of pressure sensing using the pressure sensor, and a method of fabricating a composite structure for a pressure sensor. The method of fabricating a composite structure for a pressure sensor comprises the steps of forming an array of microstructures made from an elastomeric material; and forming a flexible conductive coating on the array of microstructures such that a surface morphology of microstructures is substantially maintained for the coated array of the microstructures; wherein the conductive coating exhibits a Young's modulus that is higher than that of the elastomeric material.
Owner:NATIONAL UNIVERSITY OF SINGAPORE