238 results about "Synthetic rubber" patented technology

The invention belongs to the technical field of sealing materials, and particularly relates to a rubber composite sealing material and a liquid phase preparation method and application thereof. According to the liquid-phase preparation method of the rubber composite sealing material, provided by the invention, based on deep understanding of a liquid-phase synthesis process of first liquid-phase pre-dispersion and then condensation, a modified carbon black dispersion liquid, a modification auxiliary agent and a modified synthetic rubber latex dispersion liquid are prepared, so that carbon black and the auxiliary agent can be promoted to be uniformly and stably dispersed in a synthetic rubber system; the dispersion uniformity of the carbon black and the auxiliary agent is improved, so that the vulcanized rubber composite sealing material is not easy to have insufficient or excessive local crosslinking or structural defects, thereby improving the mechanical property, air tightness and cold resistance of the rubber composite sealing material, and being a high-performance rubber composite material; the technical problem that a high-performance rubber material is difficult to prepare by an existing preparation method is solved.

The present invention discloses a portable snack placemat designed to be easily foldable and easy to stow. The portable snack placemat comprises a placemat portion with a lip, molded snack containers with matching lids, and a locking device. The placemat portion further comprises two indentions which allow the snack placemat to fold upon itself while maintaining a narrow base so that the snack placemat can stand upright when in the folded position. The snack placemat further comprises an attachment piece. When the placemat portion is folded along the two indentions, the attachment piece creates a locking mechanism. The snack placemat is now in the folded position and can easily fit in any diaper bag, cooler, or backpack due to its compact and flat size. The portable snack placemat may be made of silicone or another similar synthetic rubber or synthetic plastic polymer with analogous qualities.

A joint connect assembly may include a metallic ring connector configured to couple with one or more tubular composite beams. The joint connect assembly may include a layer arranged between the metallic ring connector and an external surface of the one or more tubular composite beams. The layer may be formed of a material configured to reduce local stress concentrations on the one or more tubular composite beams. The material of the layer may be an elastomeric material, e.g., the layer may include at least one of a natural rubber, synthetic rubber, or a combination thereof.

The utility model belongs to the technical field of rubber production, and particularly relates to a synthetic rubber material grinding and smashing device which comprises a smashing box, a feeding port is formed in the top of the smashing box, a discharging port is formed in the bottom of the smashing box, and a coarse smashing chamber, a fine smashing chamber, a recycling chamber and a discharging chamber are sequentially arranged in the smashing box from top to bottom. Sieve plates are arranged among the chambers and comprise a first sieve plate, a second sieve plate and a third sieve plate, a heating plate is arranged on the outer wall of the coarse crushing chamber, the first sieve plate and the second sieve plate are connected with an air blowing device, and a spiral material guiding mechanism for conveying materials is arranged at the lower end of the third sieve plate; the output end of the spiral guide mechanism is connected with the fine crushing chamber, a coarse crushing mechanism is arranged in the coarse crushing chamber, a fine crushing mechanism is arranged in the fine crushing chamber, the coarse crushing chamber, the fine crushing chamber and the recovery chamber are sequentially arranged to crush rubber raw materials, and the crushing effect of the raw materials is fully guaranteed.

A downhole expandable tubular for expansion in a well downhole to abut against an inner face of a well tubular metal structure or borehole, includes at least first and second circumferential edges on the outer face, forming a circumferential groove, a sealing unit arranged in the circumferential groove. The sealing unit includes a post-transition metal material, the sealing unit has an annular sealing element and a retaining element, and at least the retaining element comprises the post-transition metal material, and the annular sealing element is made of elastomer, natural or synthetic rubber, or a polymer.

The sustainable hydraulic hose comprises of an inner-tube, reinforcement which renders robustness to the hose to withstand higher pressures and finally the cover compounds which is the exterior most part of the hose. The present invention relates generally to a sustainable hydraulic hose which is substantially minimizing the use of conventional fossil fuel derived raw materials. Nitrile (NBR) / SBR based innertube is used along with Nitrile (NBR) / SBR based cover compounds and the hydraulic hose accounts for at least 50 % and extendable up to 80 % sustainability. Unlike conventional hoses, which may use petroleum-based synthetic rubbers, sustainable options often incorporate recyclable or biodegradable materials like elastomers, fillers, rubber additives, plasticizers which is derived from bio- origin without depleting the non-renewable resources and at the same time it is ensured that the hoses meet high standards for both performance and environmental impact, providing users with assurance of their eco-friendly credentials.

The utility model relates to a rubber base plate for coil steel transportation, which comprises a steel plate, a rubber plate is laid above the steel plate, the rubber plate is adhered on the steel plate by adopting a vulcanization process, and a plurality of mounting holes are arranged on the steel plate and positioned on the outer side of the rubber plate. The rubber base plate is applied to coiled steel transportation equipment, the problem that a bonding type rubber base plate is difficult to replace is solved by changing the installation mode of the rubber base plate for coiled steel transportation, the installation efficiency of the rubber base plate can be improved, and the purpose of replacing the rubber base plate on site is achieved through a bolt and nut combined connection mode; the rubber plate is made of composite synthetic rubber, has strong weather resistance, acid and alkali resistance, cold resistance and high temperature resistance, is bonded on the steel plate by adopting a vulcanization process, has higher adhesive force, is doubled in bonding strength, and is short in construction period, simple to operate and convenient to replace.

The invention relates to a hot melt adhesive film for bonding TPO and an epoxy plate and a preparation method thereof, the hot melt adhesive film comprises the following raw materials by mass: 10-30 parts of a polyolefin elastomer, 20-40 parts of synthetic rubber, 10-30 parts of modified synthetic rubber, 10-30 parts of tackifying resin, 10-30 parts of softening oil, and 1-5 parts of a cross-linking agent. The modified synthetic rubber is a mixture of maleic anhydride grafted SEBS rubber and epoxy modified SBS rubber; uniformly mixing the polyolefin elastomer, the synthetic rubber, the modified synthetic rubber, the tackifying resin and the softening oil, and granulating through a granulator; and uniformly mixing a cross-linking agent and the obtained particles, putting the mixture into a double-screw extruder, and carrying out melt extrusion to obtain the hot melt adhesive film. The hot melt adhesive film disclosed by the invention has high bonding strength on TPO and epoxy plates, and is simple in preparation process and convenient to use.

The present invention provides a method for terminating and anti-aging after the polymerization reaction of synthetic rubber, which comprises the following steps: adding a terminator solution, a non-ionic surfactant and an anti-aging agent to the polymerization reaction solution after the polymerization reaction of synthetic rubber in sequence and carrying out a stirring reaction. The method for terminating and anti-aging after the polymerization reaction provided by the present invention has less consumption of auxiliary agents, and the rubber product has good anti-aging performance. The method for terminating and anti-aging is to first add water or an alcohol solution, and then add substances such as a non-ionic surfactant and an anti-aging agent. This method for terminating and anti-aging can avoid the direct reaction between the residual catalyst that is not completely terminated and the anti-aging agent, and ensure that the synthetic rubber has good aging resistance. At the same time, this method for terminating and anti-aging has the characteristics of less consumption of auxiliary agents, no by-products, no pollution, environmental protection, etc., and can improve the stability of synthetic rubber products.

The invention provides steel wire rubber formula rubber based on bionic synthetic rubber. The steel wire rubber formula rubber comprises 70-90 parts of bionic synthetic rubber, 10-20 parts of butadiene rubber, 6-10 parts of zinc oxide, 0.5-1 part of stearic acid, 2-4 parts of an anti-aging agent, 1-2 parts of an adhesive, 3-6 parts of reinforcing resin, 0.4-2.5 parts of a resin curing agent, 50-100 parts of carbon black, 1.5-2.5 parts of an accelerant and 5.5-7.5 parts of a vulcanizing agent. The invention further provides a preparation method and application of the formula adhesive for the steel wire adhesive. The steel wire rubber formula rubber based on the bionic synthetic rubber provided by the invention is excellent in processability and good in steel wire frictioning effect, and the steel wire rubber has high bonding performance with a steel wire after vulcanization.

Provided is a rubber material for a tire having an excellent balance among wear resistance, fuel efficiency, and a wet grip property, a masterbatch and a rubber composition for a tire suitable for producing the same. A masterbatch contains: a rubber component which is at least one selected from the group consisting of a natural rubber and a synthetic rubber; a reinforcing filler that contains hydrophilic fumed silica; and a silane coupling agent, in which a content of the hydrophilic fumed silica is 13 parts by mass or more and 130 parts by mass or less, and a content of the silane coupling agent is 1 part by mass or more and 40 parts by mass or less, with respect to 100 parts by mass of the rubber component, and a mass ratio of the hydrophilic fumed silica in 100 mass % of the reinforcing filler is 50% or more.

Disclosed is a grip (100, 300, 500, 1100) that includes a material (104, 1110) having a wrist end (120, 520, 1112), a finger end (122, 522, 1114), and sides that extend from the wrist end to the finger end. The wrist end of the material has a concave shape that (i) is between the sides of the protective material and (ii) defines at least two legs (128A, 128B, 1120, 1122) on opposite sides of an apex (126) of the concave shape. A wrist strap (102, 1102) is attached to a leg of the wrist end. A hand covering (1600, 1700) comprising a palm protection area (1702) having a non-woven composite material exposed on a first face and a synthetic rubber material exposed on a second opposite face, the palm protection area having different widths at different locations along an axis that extends between a wrist end (1606) and a finger end (1604); and a wrist securing member (1708) at the wrist end.

The invention relates to a planar flexible bandage material having two opposing outer surfaces, wherein the first outer surface is formed by a synthetic rubber compatible with human skin and the second outer surface by a material which, in conjunction with a planar flexible fixing element, can create a hook and loop connection, as well as a system of bandage material that can be cut to size and a planar flexible fixing element material.

The present invention relates to a foamable polymer composition containing a polymer selected from the group consisting of polyolefins (PO),polyolefin elastomers (POE), polyolefin block co-polymers (OBC), ethylene vinyl acetate copolymers (EVA), EVA / PO copolymers, EVA / OBC copolymers, polyvinylchloride (PVC), polymers of styrene, natural and synthetic rubbers, polyamides, polyimides, and combinations thereof, a functionalized particulate bicarbonate, and thermally expandable microspheres, to methods for manufacturing a foamed polymer using such foamable polymer composition, and the use of said foamed polymers.

The application relates to the technical field of synthetic rubber, in particular to a nitrile rubber, a preparation method and application thereof, wherein the preparation method adopts at least potassium saponification soap and / or sodium saponification soap of disulfated rosin acid, C 10 -C 13 A composite emulsifier system composed of linear alkyl benzene sulfonic acid and naphthalene sulfonic acid formaldehyde condensate sodium salt and a low-temperature emulsion polymerization process, and the obtained nitrile rubber can be used in the field of oil-resistant sealing in a hydraulic oil operation environment.

The present invention addresses the problem of providing a rubber composition for a tire, which can improve the proportion of sustainable materials in tires and can contribute to reducing environmental burden throughout the entire process of producing, using, and disposing of synthetic rubber. A means for solving this problem is a rubber composition for tires, which is characterized by: containing a rubber component (A) that includes a rubber (A1) having an isoprene skeleton and a synthetic rubber (A2), with the content of the rubber (A1) having an isoprene skeleton being 10-90 parts by mass and the content of the synthetic rubber (A2) being 90-10 parts by mass in a total of 100 parts by mass of the rubber component (A); the synthetic rubber (A2) including a synthetic rubber (A2-1) supplied using a mass balance approach.

The compositions herein are directed to a rubber composition, which contains a polymer crosslinked with methacrylate and polyacrylate, a polysaccharide or gum, and a cellulose base for filling molds.

The application discloses a kind of preparation method and system of butadiene-styrene latex using emulsion coagulant modification, belong to high polymer material and synthetic rubber technical field.The application includes: the solution containing lactone compound, linear polymer with upper critical solution temperature is mixed with butadiene-styrene latex, and homogeneous premix system is formed;Under preset temperature condition, the hydrolysis reaction of the lactone compound in the homogeneous premix system is carried out, and the pH value of system drops;When the pH value of the system drops to the isoelectric point of the linear polymer, the dissolution state of the linear polymer under the preset temperature changes from hydrophilic extended conformation to hydrophobic collapse conformation, so as to coalesce latex particles in the butadiene-styrene latex.The application realizes the separation of coagulation reaction and mixing process in time, effectively inhibits the problem of local concentration polarization caused by glue deposition and particle size distribution widening, and the obtained rubber particle is uniform in size and excellent in mechanical property, suitable for industrial production.

The invention relates to the technical field of tire rubber manufacturing, and discloses a high-temperature-resistant new energy automobile tire tread rubber composition. The rubber composition is prepared by mixing the following raw materials based on 100 parts by weight of raw rubber: 40-60 parts of natural rubber, 40-60 parts of synthetic rubber, 5-45 parts of filler, 10-15 parts of unsaturated polyester resin, 15-25 parts of liquid butadiene rubber, 0.5-2 parts of a cross-linking agent and 5-15 parts of a plasticizer. The molecular structure of the unsaturated polyester resin contains carboxyl groups, the molecular weight is 5000-8000, and the unsaturation degree range is 0.2-0.8; the liquid butadiene rubber is modified liquid butadiene rubber with terminal amino and can react with unsaturated polyester resin to perform cross-linking reaction, so that the wear resistance, the thermal stability and the overall performance of the tire are effectively improved, and the method is suitable for manufacturing tires of new energy cars.

The invention discloses waste rubber recovery treatment equipment for processing synthetic rubber fire-fighting bags, and relates to the technical field of rubber recovery. The waste rubber recovery processing equipment for processing the synthetic rubber fire-fighting bags comprises a machine body and a supporting frame fixedly installed at the top of the machine body, a recovery processing mechanism comprises a tank body and a feeding hopper, a cover plate is fixedly installed at the end, away from the feeding hopper, of the tank body, and a leakage hole is formed in the bottom of the outer circle face of the tank body; triangular fixing teeth are fixedly connected to the bottom of an inner cavity of the tank body, a machining assembly is installed in the middle of the tank body and comprises a round roller and a servo motor, a cutter is fixedly connected to the outer circle face of the round roller, crushing teeth are fixedly connected to the outer circle face of the round roller, and right-angle stirring teeth are fixedly connected to the outer circle face of the round roller. And the right-angle stirring teeth correspond to the servo motor in position, and a pushing plate is fixedly installed at the end, away from the right-angle stirring teeth, of the round roller, so that the purpose of stage treatment is achieved, stage-by-stage treatment can be conducted, and winding is not prone to occurring.

A bioremediating composition including a consortial culture with at least one fungal culture and at least one bacterium culture, a growth medium with a waste material that includes synthetic rubber and method for producing a biodegradable byproduct from a waste material that includes synthetic rubber, preparing the growth medium with the waste material, and incubating the growth medium with at least one bioremediating composition with at least one fungal and one bacterium culture.

The invention discloses a heat transfer film as well as a preparation method and application thereof. The heat transfer film comprises a frame layer, a foaming layer, a reinforcing layer and a transfer release layer which are sequentially arranged, the preparation raw materials of the modified aramid fibers comprise aramid fibers modified with amide groups and polyamide nanoparticles; the foaming layer is prepared from the following raw materials: styrene synthetic rubber, a heat-conducting material, a conductive material, inorganic filler, foaming microspheres, a coupling agent and a vulcanizing agent; the reinforcing layer is prepared from the following raw materials: acrylate rubber, a heat-conducting material, a conductive material, an inorganic filler, a coupling agent and a vulcanizing agent; the ink has the characteristics of insulation and heat conduction and is suitable for transfer printing of electronic ink.

The invention discloses an environment-friendly rubber composition and a production method thereof, and belongs to the technical field of synthetic rubber. The rubber composition provided by the invention comprises the following components in parts by weight: 150200 parts of modified raw rubber; 50-60 parts of white carbon black; 110 to 130 parts of pottery clay; 31-43 parts of a softening agent; 5-8 parts of zinc oxide; 1-2 parts of stearic acid; 1-3 parts of polyethylene glycol; 2-5 parts of a silane coupling agent; the modified raw rubber is prepared by carrying out high-temperature reaction on raw rubber, a modifier and an organic solvent in the presence of inert gas. According to the environment-friendly rubber composition produced by the invention, the temperature resistance and the strength of the rubber can be enhanced by modifying the rubber, and the white carbon black and the argil are used for synergistic reinforcement, so that the strength and the cost are both considered, and the cost is controllable; a large amount of argil is used as a low-cost extender in the components, so that the economical efficiency is higher.

The utility model provides an efficient mixing machine for a synthetic rubber composite material, belongs to the technical field of efficient mixing machines, and solves the technical problems that sedimentation and caking are easy to occur in the existing rubber mixing work, and side reaction is easy to occur due to improper temperature control. The device is provided with a premixing cavity and a mixing cavity, a premixing assembly is arranged in the premixing cavity, the premixing assembly is connected with a power assembly, the premixing assembly comprises a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are rotationally connected with the premixing cavity, a plurality of stirring blocks are connected to the first rotating shaft and the second rotating shaft, and a plurality of filtering holes are formed in the side wall of the bottom of the premixing cavity. A mixing assembly is arranged in the mixing cavity and comprises a mixing motor, the output end of the mixing motor is connected with a third rotating shaft, the third rotating shaft is connected with a mixing block, and the outer walls of the premixing cavity and the mixing cavity are both connected with a temperature control device. The high-efficiency mixer can be widely applied to the technical field of high-efficiency mixers.

The present application relates to a kind of preparation method and application of recycled asphalt, waste modified asphalt waterproofing membrane is cut into cutting material by cutting machine, cutting material is put into special double screw extruder, and is converted into molten state recycled asphalt.The present application also utilizes layered silicate clay and biodegradable resin to modify recycled asphalt, for preparing recycled asphalt system modified asphalt or recycled asphalt containing waterproofing membrane, realizes the recycling of waste modified asphalt waterproofing membrane, especially for the recycling of waste modified asphalt waterproofing membrane containing polyester fiber, recycled asphalt system modified asphalt prepared by recycled asphalt can also reduce the dependence on petroleum chemical composition-artificial synthetic rubber required for traditional modified asphalt, and the preparation method of the present application also has the advantages of low energy consumption, little pollution, reduce carbon dioxide emissions and the like relative to existing recycling technology.

The utility model belongs to the technical field of workpiece installation and welding, and particularly relates to intelligent equipment based on uranium concentration plant flat plate supporting arm installation. A base is arranged on the portal, a six-axis mechanical arm is installed on the base, and a welding gun, a collision sensor and a welding seam tracking sensor are arranged at the tail end of the six-axis mechanical arm. And a crawler-type walking mechanism is arranged. The track is made of synthetic rubber. And a three-stage composite lifting mechanism is arranged. And a hydraulic and servo position control system is arranged. The utility model solves the problems of quality, cost and efficiency in the welding process of mounting the flat plate support arm to the door-shaped frame.

The invention discloses an energy-saving normal-pressure plasticizing device for a flexible high polymer material, the energy-saving normal-pressure plasticizing device comprises a plasticizing tank, a stirring structure, an electromagnetic induction heating device and a pressure reducing valve, the top of the plasticizing tank is provided with a feed port and the pressure reducing valve, and the side wall of the bottom of the plasticizing tank is provided with a discharge port; the pressure reducing valve is provided with a valve inlet and a valve outlet which are communicated with each other, the stirring structure comprises a main stirrer and an auxiliary stirrer, the main stirrer has a first stirring speed, the auxiliary stirrer has a second stirring speed, and the first stirring speed is different from the second stirring speed; the electromagnetic induction heating device is at least partially arranged on the outer side surface and the bottom surface of the plasticizing tank; wherein the flexible high polymer material is a rubber product, synthetic rubber and a mixed rubber material. The plasticizing device is efficient, energy-saving and environment-friendly, solves the industrial problems of high pollution and high energy consumption, and has extremely high application value.

The invention discloses high-strength anti-aging styrene-butadiene rubber and a preparation method thereof, and belongs to the field of synthetic rubber modification. Porous reticular ZnO aggregated by 6.5 nm ZnO nanoparticles is synthesized by a hydrothermal method by using a composite surfactant of PVP K30 and polyvinyl alcohol 600 in a ratio of 1: 1, and the ZnO is not dried after synthesis so as to avoid aggregation; the preparation method comprises the following steps: carrying out surface modification with a silane coupling agent KH560, carrying out segmented temperature control mixing with styrene-butadiene rubber, carbon black N330 and other assistants, and carrying out pre-crosslinking and gradient heating vulcanization to obtain a finished product. A porous net structure allows rubber slurry to fully permeate, the contact area of the filler and a matrix is increased, and efficient reinforcement is realized by low mixing amount; znO nano-particles can convert ultraviolet light into visible light, and the aging resistance is enhanced by matching with the scattering effect of a porous structure; the coupling agent modifies and optimizes the interfacial compatibility, the problem that agglomeration and performance of a traditional filler are difficult to consider is solved, and the finished product has high strength and excellent aging resistance and meets the requirements of tires, sealing elements and other scenes.

The present invention relates to a resin composition, a sheet, and a metal base substrate. The purpose of the present invention is to provide a resin composition and a varnish which contribute to shortening a molding period while improving thermal conductivity and insulation reliability, an inorganic composite sheet thereof, and a metal base substrate. This resin composition is characterized by containing (A) a polyphenylene ether resin, (B) a synthetic rubber, (C) a crosslinking agent, and (D-1) a first inorganic filler, the (D-1) first inorganic filler being boron nitride having an average particle diameter of 10-80 [mu] m.

This invention provides a device and method for extracting synthetic rubber latex residue, belonging to the field of synthetic latex production technology. The device and method include a support structure and an extraction structure. The support structure includes a support plate and an extraction cylinder, with the extraction cylinder fixed to one side of the top surface of the support plate. The extraction structure includes an annular frame, a lifting component, and an extraction component. Vertical plates are fixed to both sides of the annular frame, and the ends of the vertical plates are fixedly connected to the outer surface of the extraction cylinder. A transfer component is installed inside the annular frame, and the lifting component is mounted on the transfer component. The extraction component is mounted on the lifting component. This invention eliminates the need for repeated disassembly and assembly during latex residue extraction, saving time and improving extraction efficiency. It also facilitates the collection and reuse of the latex residue, reducing resource waste.