17 results about "Thermoplastic elastomer" patented technology

A thermoplastic polymer composition which is excellent in flexibility, mechanical properties, and moldability, capable of adhering to ceramics, metals, and synthetic resins without a treatment with a primer, and exhibits a high adhesion strength even when exposed to a high temperature environment, and a molded product obtained by using the thermoplastic polymer composition. The thermoplastic polymer composition includes 100 parts by mass of a thermoplastic elastomer (A), 1 to 100 parts by mass of a polyvinyl acetal resin (B), and 0.1 to 300 parts by mass a softener (C). The thermoplastic elastomer (A) is a block copolymer including a polymer block constituted by aromatic vinyl compound units and a polymer block constituted by conjugated diene units or a hydrogenated product of the block copolymer. The polyvinyl acetal resin (B) has a glass transition temperature of 80 to 130° C.

Compositions comprising a thermoplastic elastomer, e.g., a polyurethane, a nitrogen and/or phosphorus-based, intumescent flame retardant, e.g., a polyphosphate, a non-phosphorus-based burn synergist, e.g., carbon black or a metal oxide, and an optional olefin polymer, EVA are provided. Color-stable, halogen-free, flame retardant compositions comprising a thermoplastic elastomer polymer, a phosphorus-based flame retardant, at least 3 weight percent TiO2 and a UV stabilizer are also provided.

A thermoplastic elastomer composition comprised of 20 to 95 wt % of a polyester resin (A) having a melt flow rate of 4 g/10 min to less than 20 g/10 min and 80 to 5 wt % of at least one type of rubber (B) selected from an acryl rubber (B1), hydrogenated nitrile rubber (B2), and polyether rubber (B3), wherein the rubber (B) is dynamically cross-linked. The composition can be shaped and suitably used for a seal part, hose part, boot part, or other auto related rubber part.

A thermoplastic elastomer composition includes a base oil and a styrene thermoplastic elastomer composition, in which the base oil has a kinematic viscosity at 40 degrees C. in a range from 5 mm²/s to 75 mm²/s, a flash point of 150 degrees C. or more, 3.0 or less of a maximum value of ultraviolet absorbance at a wavelength from 190 nm to 350 nm, and an aniline point of 120 degrees C. or less, and 500 parts by mass or more of the base oil is contained relative to 100 parts by mass of the styrene thermoplastic elastomer.

The invention is to provide a hot melt composition for a toilet seat sheet, settling problems of the transfer of an adhesive to the toilet seat and resistance to washing, while keeping the adhesiveness to the toilet seat of a Western-style toilet bowl, using no solvent so as not to require a drying equipment, composed only of a base material and an adhesive layer so as not to require specific coating patterns, and advantageous in the production cost concerning to the equipment, time and the like, and to provide a toilet seat sheet produced by using the composition. The hot melt composition for a toilet seat sheet comprises (A) 5-30 mass% styrene-based thermoplastic elastomer, (B) 20-55 mass% tackifier resin having >=100[deg.]C softening point, (C) 10-40 mass% plasticizer, (D) 0-15 mass% amorphous polyolefin and (E) 0.1-5 mass% white pigment, and has 1,000-10,000 mPa s melt viscosity at 160[deg.]C, and a toilet seat sheet produced by using the composition is also provided.

High-strength wear-resistant environmental-friendly plastic and a preparing method thereof are disclosed. The plastic comprises following raw materials by weight: PAA copolymer, polylactic acid (PLA), ethylene-vinyl acetate copolymer (EVA), plant powder, graphite fiber, a silane coupling agent KH550, ABS-grafted maleic anhydride, styrene-butadiene thermoplastic elastomer (SBS), methyl methacrylate-butadiene-styrene copolymer (MBS), hydrogenated styrene-butadiene-styrene block copolymer (SEBS), dipentaerythritol ester PCB, octyl esters of epoxidized soybean oil, tributyl citrate, glyceryl monostearate, kaolin, coal ash, silk white powder, white carbon black and an antioxidant SP. The PAA copolymer is prepared by reacting 6-aminocaproic acid and gamma-aminobutyric acid in a mole ratio of 5-10:0.5-4. The plastic is excellent in wear resistance and strength, and can be fully degraded into water and carbon dioxide under actions of light/bacteria so as to avoid environment pollution.

The invention relates to a preparation method of high-polymer self-sealing hot melt adhesive powder for raising the safety level of an automobile tire. The high-polymer self-sealing hot melt adhesive powder is prepared from the following raw materials in percentage by weight: 42-62 percent of thermoplastic elastomer, 34-54 percent of tackifier, 3-8 parts of plasticizer, 0.5-1.5 percent of antioxidant, 0-1 percent of cross-linking agent, 0-15 parts of filling agent and 0-3 parts of curing agent. The raw materials are smashed, mixed, hot-molten and sprayed by adopting corresponding equipment, so that an ordinary automobile tire can work normally in the temperature of between 40 DEG C below zero and 120 DEG C and has the safety performance of bullet resistance, leakage resistance and pricking resistance. After mixing, a bagging step is carried out to obtain the high-polymer self-sealing hot melt adhesive powder product for raising the safety level of the automobile tire. The technical scheme provided by the invention has the advantages of small number of steps, easiness in operation and no need of performing any destructive processing on the inner wall of the automobile tire.

The invention discloses a cement nanometer toughening agent for petroleum and natural gas well cementation. The cement nanometer toughening agent comprises the following components in parts by weight:100 parts of clear water, 40-80 parts of condensed nano silicon powder, 5-10 parts of flexible particles, 1.2-1.5 parts of hydroxypropyl starch and 0.1-0.3 part of polyvinyl chloride fiber, wherein the flexible particles are styrene thermoplastic elastomers. A preparation method is simple, and the cement nanometer toughening agent can be obtained only by weighing the components according to a certain weight ratio and then uniformly mixing and stirring the components; the cement nanometer toughening agent liquid for natural gas well cementation has good compatibility with cement paste; according to the invention, on-site construction requirements can be met, the elastic modulus of the set cement is reduced on the premise of ensuring the compressive strength of the set cement, so that the impact resistance of the annular set cement is strong, the annular set cement can bear the influence caused by large-scale fracturing and alternating stress change of a gas storage well shaft, and theservice life of oil-gas wells is prolonged.

The invention pertains to a fluoropolymer composition based on a thermoplastic vinylidene fluoride (VDF) polymer and a thermoplastic fluorinated elastomer, possessing advantageous performances, including improved compromise between flexibility and stiffness, and suitable for being notably used in the manufacture of parts and accessories of mobile electronic devices, to a method of making the said composition, and to a method of manufacturing said parts from said composition and mobile electronic devices using said parts.

The invention discloses high-molecular hot melt glue with a self-sealing function for the safety upgrade of vehicle tires. The high-molecular hot melt glue consists of the following components in parts by mass (based on 100 mass parts of thermoplastic elastomer): 100 parts of thermoplastic elastomer, 100-125 parts of a tackifier, 100-110 parts of a plasticizer, 3 parts of an anti-aging agent and/or an antioxidant and 2-2.5 parts of a crosslinking agent. The high-molecular hot melt glue disclosed by the invention is sprayed on the inner wall of a tire by a vehicle tire glue sprayer, any destructive processing of the inner wall of the tire is not required, and the inner wall of the tire is only subjected to the release agent removal cleaning and drying treatment; by coating the whole inner wall of the tire or the crown-shaped part with a layer of high-molecular hot melt glue with thickness of greater than 3.5mm, the tire can be upgraded to work normally in a range from low temperature -40 DEG C to high temperature +120 DEG C and has the bulletproof property, leakage-proof property and pricking resistance. The invention also discloses a production method of the high-molecular hot melt glue.

The invention belongs to the technical field of thermoplastic elastomers, and particularly relates to a high-filling scratch-resistant extrusion-grade thermoplastic elastomer material and a preparation method thereof.The thermoplastic elastomer material is prepared from, by weight, 100 parts of styrene elastomers, 30-150 parts of filling oil, 10-300 parts of polyolefin, 1-50 parts of a slipping auxiliary, 50-300 parts of modified inorganic filler and 0.1-10 parts of a lubricating agent. According to the high-filling scratch-resistant extrusion-grade thermoplastic elastomer material, the base material styrene elastomer is good in compatibility with the filling oil and the polyolefin, all the components can be uniformly mixed to improve the processing performance, and the inorganic filler is added into the system after being modified and can be more uniformly dispersed, so that the scratch-resistant extrusion-grade thermoplastic elastomer material is prepared. And the temperature resistance, sound insulation and other properties of the material can be effectively improved, the scratch resistance of the material can be significantly improved, and the surface defects such as patterns, flow marks, shrinkage pits, peeling, bumps and the like formed on the surface of the product due to poor fusion of the directly added inorganic filler and the system are avoided.

The invention provides a solvent-free printing bedplate adhesive and a preparation method and application thereof, and the solvent-free printing bedplate adhesive comprises a combination of a thermoplastic elastomer, tackifying resin, a plasticizer, a coupling agent, an inorganic filler and an antioxidant in specific parts. The solvent-free printing bedplate glue has excellent bonding performance, can play a perfect role in fixing special cloth such as silicone oil cloth, nylon cloth and mercerized cotton cloth, does not have an edge warping phenomenon in the use process, can be repeatedly used, does not return to a bedplate, also has excellent high-temperature resistance, and is suitable for industrial production. And the use temperature is obviously improved.

The invention discloses a high-temperature-resistant thermoplastic elastomer and a preparation method thereof. The high-temperature-resistant thermoplastic elastomer is prepared from the following raw materials in parts by weight: 15-25 parts of cis-1,4-polybutadiene rubber, 20-25 parts of acrylate rubber, 5-7 parts of bisphenol A novolac epoxy resin, 10-12 parts of diphenylmethane bismaleimide, 8-12 parts of polyethylene, 5-8 parts of paraffin oil, 3-5 parts of polyethyleneglycol, 4-6 parts of dibasic lead phosphite, 4-6 parts of N,N-diacetyladipyldiamido hydrazine, 1-4 parts of dibutyltin dilaurate, 1-5 parts of citric acid, 3-6 parts of calcium carbonate, 2-4 parts of mullite powder, 8-15 parts of fly ash and 10-15 parts of modified composite filler. The high-temperature-resistant thermoplastic elastomer has the advantages of excellent aging resistance, excellent high-temperature resistance, favorable flame-retardant effect and high oxygen index (up to 33% or above), and can be used in a high-temperature environment for a long time without the phenomena of cracking, bending, shrinkage and the like.

The invention discloses a nano high-resilience composite material for children's toys and a preparation method thereof. The composite material is prepared from the following raw materials in parts byweight: 75-85 parts of polyether polyol, 30-45 parts of MDI, 1.2-1.8 parts of stannous octoate, 5-7 parts of dipropylene glycol, 25-38 parts of thermoplastic elastomer, 20-40 parts of polylactic acid,3-5 parts of cross-linking agent, 10-25 parts of bamboo charcoal fiber, 5-8 parts of pentaerythritol, 1-3 parts of gum base, 2-5 parts of polymethylene polyphenyl isocyanate, 0.5-1.5 parts of phosphoric acid, 2-5 parts of glycerol, 8-15 parts of nano filler and 0.5-1.5 parts of water. The nano high-resilience composite material prepared by adopting the reasonable formula and the preparation method has relatively high tensile strength, good mechanical property, high resilience rate and excellent resilience performance, and is suitable for manufacturing toys for children.