77 results about "Styrene-ethylene-butylene-styrene-block copolymer" patented technology

The invention discloses a halogen-free flame-retardant thermoplastic elastomer cable material with polyphenylether as the base materials and a preparation method thereof. The raw material of the cable material contains the components with the following weight percentage: 10 to 35 percent of matrix resin A; 5 to 15 percent of matrix resin B; 10 to 25 percent of elastomer; 5 to 25 percent of softening plasticizer; 8 to 15 percent of flame-retardant plasticizer; 20 to 40 percent of smoke-suppression flame retardant; 3 to 10 percent of compatilizer; 1 to 5 percent of lubricant; 1 to 5 percent of powder surface conditioner; 0 to 10 percent of mineral filler; 0.1 to 1 percent of stabilizing agent. The invention adds matrix resin, polyphenylether of strong polarity and functional group of styrene-ethylene / butylene-styrene segmented copolymer, which effectively improves the compatibility of non-polar elastomer with polyphenylether; the invention also adds plasticizer, which reduces the hardness of the material and increases the flexibility; and through the optimization and interaction of the softening plasticizer and the flame-retardant plasticizer, the invention reduces the hardness and improves the tactility of the material, and the flame retardant performance is excellent.

There are disclosed a polypropylene composition for automotive parts which has a melt index at 230° C. and at 2.16 kgf of at least 30 g/10 minutes and which comprises 55 to 60% by weight of (1) propylene/ethylene block copolymer; 20 to 25% by weight of (2) rubber comprising a styrene/ethylene/propylene/styrene block copolymer and/or a styrene/ethylene/1-butene/styrene block copolymer and an olefinic elastomer; and 18 to 23% by weight of (3) talc, and also an automotive part which comprises the above polypropylene composition.

A heat shrinkable multi-layer film including an intermediate layer containing polypropylene, and outer layers formed on both sides of the intermediate layer, wherein the outer layers contain a styrene-butadiene-styrene block copolymer, polypropylene, and a styrene-ethylene-propylene-styrene block copolymer or styrene-ethylene-butylene-styrene block copolymer.

The invention relates to a reflective insulating fire-retardant coating for a waterproof roll, and a preparation method and use thereof. The coating comprises the following material formulas by weight percent of 20-25% of styrene-ethylene-butene-styrene butadiene styrene block copolymer, 8-15% of terpene resin, 5-10% of acrylic resin, 10-15% of n-butyl acetate, 10-15% of titanium dioxide, 1-8% of hollow microsphere, 5-8% of halogen-free flame retardant phosphate, 5-10% of antimonous oxide, 5-15% of talcum powder, 0.5-1% of antioxidant, 0.3-0.8% of defoamer, and 20-35% of 200# solvent oil, wherein the sum of weight percents of all materials is 100%. The coating disclosed by the invention can be directly matched with the waterproof roll, has an excellent insulating fire-retardant property, and can be used for effectively improving the fire security and the thermal insulating property of the rolled roofing material.

The invention relates to a high viscosity modified asphalt which comprises the following constituents (by weight ratio): asphalt 100, styrene-polyethylene / butylene-styrene segmented copolymer 3-12 having an average molecular weight of 30-350 thousand, petroleum resin 5-40 with a softening point of 70-150 deg C. By mixing styrene-ethane/butylenes-styrene segmented copolymer and petroleum resin into the asphalt, high viscosity, good dispersity and stability can be achieved, the PG classification can reach 82-28. The obtained high-performance modified asphalt can be used for both the general water seeping pavements, and specific sites such as bridge pavement and stress absorption layer.

The invention relates to a thermoplastic elastomer composition with low TVOC and low Fogging for automotive trim and a preparation method of the thermoplastic elastomer composition. The thermoplastic elastomer composition is prepared from the following raw materials with the following content in percentage by weight: 30-40% of styrene-ethylene-butylene-styrene block copolymers, 5-15% of naphthenic oil, 35-45% of alkene block copolymers, 5-15% of homopolymerized polypropylene and 0.1-0.2% of an antioxidant. The thermoplastic elastomer composition disclosed by the invention has the advantages that Infuse 9807 and SEBS are added for compounding, the Infuse 9807 novel alkene block copolymers (OBC) enable the high-low temperature compression and the deformation without separation of the excellent properties of elastomers after modification by polyblending to be improved, the Infuse 9807 novel alkene block copolymers and PP are in stable secondary injection molding and bonding or direct injection molding, when the thermoplastic elastomer composition is used as components of the automotive trim, the thermoplastic elastomer composition can be used for a long time, separation cannot be generated, the thermoplastic elastomer composition is a non-toxic harmless environment-friendly material for human bodies and environment, the thermoplastic elastomer composition completely passes the inspection according to the standard of 'Air Qualitative Assessment Guide in Passenger Vehicle' (GB/These 7630-2011) and meet the using requirements of automotive trim workpieces.

The invention discloses a waterproof paint which comprises thermoplastic styrene-butadiene rubber, asphalt and solvent oil. The waterproof paint also comprises drier and filler, wherein the drier is composed of one or more oxides of cobalt, manganese, zinc and calcium; and the filler is talcum powder, fly ash, pulverized asbestos, vermiculite powder, mica powder, heavy calcium carbonate or light calcium carbonate. Due to the adoption of styrene-ethylene-butylene-styrene block copolymer (SEBS), the waterproof paint of the invention has the advantages of excellent elasticity, low-temperature flexibility, low temperature resistance and aging resistance, and does not flow at high temperature, thereby improving the quality of products and widening the use temperature range of the products.

The invention relates to modified asphalt for a warm-mixed thin overlay and a preparation method and application thereof. The modified asphalt is prepared from the following raw material components: matrix asphalt, a styrene-ethylene/butylene-styrene block copolymer, oleamide, urea resin, terpene resin and sulfur. Compared with the prior art, the styrene-ethylene/butylene-styrene block copolymer and the urea resin are introduced into the asphalt composition, and the anti-aging agent or stabilizer terpene resin and sulfur are further added, so that the bonding strength between asphalt and aggregate is improved, the high-viscosity asphalt composition is ensured to have extremely excellent water loss resistance, and the warm-mixed thin overlay can still have good anti-scattering performance and anti-aging performance after being used for many years; and meanwhile, oleamide is added to achieve the effect of a surfactant, and it can be guaranteed that the modified asphalt special for the warm-mixed thin overlay has good workability in the construction process.

A resin composition comprising 1 to 20 parts by weight of (C) at least one styrene-based thermoplastic elastomer (component C) selected from the group consisting of a styrene-ethylene.propylene-styrene block copolymer (SEPS), a styrene-ethylene-butylene-styrene block copolymer (SEBS) and a styrene-butadiene-butylene-styrene block copolymer (SBBS) based on 100 parts by weight of the total of (A) a polycarbonate-based resin (component A) and (B) a polyolefin-based resin having a MFR at 230° C. under a load of 2.16 kg of not less than 40 g/10 min (component B). The resin composition is excellent in mechanical properties, chemical resistance, appearance and tape peeling resistance.

The invention provides a temporary protection coating which can be resistant to high-temperature chromic acid solution for a long time under the powered-on condition, cannot bubble, cannot be dissolved, cannot automatically fall off, has good control performance on a final etching ratio and has good strippable performance after a hard chromium plating process is finished. According to the invention, low-molecular-weight tackifying resin containing phosphate ester groups is synthesized through a polymerization reaction of isobornyl methacrylate and acrylic phosphate during synthesis of thermoplastic acrylic resin, the adhesive force with a base material is increased, and then the matching ratio with hydrogenated hydrocarbon petroleum resin with good initial adhesion is optimized, so that the tackifying resin has the adhesive force which is high under the hot condition and low under the cold condition; the tackifying resin is matched with SEBS (Styrene-ethylene-butylene-styrene block copolymer) resin with good chromic acid resistance and high temperature resistance in certain proportion, accordingly, the electroplating protection glue can keep good flexibility and excellent adhesive force in a long-term electroplating process, and use requirements of the hard chromium plating process under different conditions are met.

The invention relates to the technical field of macromolecule modification, in particular to a high-heat flame-retardant PPO (polyphenylene oxide) alloy material and a preparation method thereof. Thehigh-heat flame-retardant PPO alloy material is prepared from the following ingredients including PPO resin, HIPS (high impact polystyrene) resin, boron-containing organic silicone resin, titanium-containing organic silicone resin, SEBS (styrene-ethylene-butylene-styrene block copolymer), SEBS-g-MAH (maleic anhydride), a phosphorus-series flame retardant, nanometer silicon dioxide, nanometer titanium dioxide, a toughening agent, a cold resistant agent, an antioxidant and a lubricating agent. The modification is performed on the PPO resin and the HIPS resin through the boron-containing organicsilicone resin and the titanium-containing organic silicone resin, and SEBS and SEBS-g-MAH are combined for compatibility modification, so that the prepared PPO alloy material has both rigidity and flexibility. The PPO alloy material has the advantages of good heat-resistant flame-retardant performance and good mechanical performance; in addition, the injection molding process requirements can becompletely met, and the dyeing is easy. The preparation method has the characteristics that the preparation method is simple, and the production cost is low.

The invention relates to a formula and a process for manufacturing TPR antistatic soles. The formula comprises the following components: 40-46% of styrene-butadiene-styrene block copolymer; 5-8% of styrene-ethylene-butylene-styrene block copolymer; 8-11% of styrene-butadiene copolymer; 6-9% of ethylene-vinyl acetate copolymer; 5-8% of high impact polystyrene; 8-11% of nano calcium carbonate; 0.2-0.3% of nano zinc oxide; 3-6% of titanium dioxide; 2-4% of slip stopping agent; 2-3% of wear-resisting agent; 0.3-0.6% of stearic acid; 0.3-0.6% of lauroyl diethanol amine; 3-5% of octylphenol polyoxyethylene ether; 3-5% of octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate; 1-3% of pyridinium p-toluenesulfonate; 1-3% of sorbitan fatty acid ester; 0.3-0.6% of plasticizer; 1-3% of bridgingagent; 1-1.5% of bridging auxiliary agent; and 3-4% of white oil. The produced product has excellent antistatic performance, the resistivity is stabilized at 1-35M omega, and the product is soft and comfortable, has good wear resistance, is suitable for being used in a static sensitive dust-free workshop, and provides a reliable solution for low-cost antistatic soles.

The invention discloses a high-cost-performance medical soft transparent SEBS (Styrene-Ethylene-Butylene-Styrene block copolymer) material and a preparation method thereof. A low-cost medical soft transparent SEBS provided by the invention basically copies all performance of an SEBS, is high-temperature-resistant, aging-resistant, has good elasticity; meanwhile, materials with lower costs are used, and problems that an ordinary medical SEBS has higher surface hardness and is difficultly made into a softer product are solved.

The invention discloses a breathable and stretchable nanofiber composite thin film material for a friction nano-generator and a preparation method of the breathable and stretchable nanofiber composite thin film material. The material is formed by blending nanofibers and elastomer microspheres through electrostatic spinning, wherein the nanofibers are polyvinylidene fluoride-hexafluoropropylene copolymer (PVDF-HFP), and the elastomer microspheres are styrene-ethylene-butylene-styrene block copolymer. The preparation method comprises the following steps of (1) dissolving a nanofiber precursor into a solution A for electrostatic spinning; (2) dissolving the elastomer microspheres into a solution B for electrostatic spinning; and (3) spinning the nanofibers and the elastomer microspheres synchronously by adopting a conjugate electrostatic spinning processing technology to obtain a nanofiber composite thin film. The nanofiber composite thin film material prepared by the invention has the advantages of adjustable thickness, air permeability, waterproofness and stretchability, has a good triboelectrification effect, is simple in preparation method and suitable for industrial production, and can be applied to the breathable and stretchable wearable friction nano-generator.

The invention relates to a high viscosity modified asphalt which wherein the asphalt comprises the following constituents (by weight ratio): asphalt 100, styrene-polyethylene / butylene-styrene segmented copolymer 3-12 having an average molecular weight of 30-350 thousand, petroleum resin 5-30 with a softening point of 70-150 deg C, polyethylene wax 1-6 having an average molecular weight of 500-15000 and a softening point of 90-160 deg. By mixing styrene-ethane/butylenes-styrene segmented copolymer, petroleum resin and polyethylene wax into the asphalt, high viscosity, good dispersity and stability can be achieved, the PG classification can reach 82-28. The obtained high-performance modified asphalt can be used for both the general water seeping pavements, and specific sites such as bridge pavement and stress absorption layer.

The invention provides a thermoplastic elastomer. The thermoplastic elastomer is prepared from the following raw materials in parts by weight: 33-40 parts of base oil, 35-45 parts of calcium powder with the grain size of 1,000 to 1,250 meshes, 15-20 parts of styrene-butadiene-styrene block copolymer, 15-20 parts of styrene-ethylene-butylene-styrene block copolymer, 1-3 parts of cyclohexane and 1-3 parts of polyurethane. The invention further provides a preparation method for the thermoplastic elastomer. The thermoplastic elastomer and the preparation method therefor have the beneficial effects that the cyclohexane and the polyurethane are added into the original thermoplastic elastomer formula according to certain proportions, so that the Akron attrition volume of prepared soles is lower than 0.6cm<3>/1.61km, and the wear resistance is close to the requirements of automobile tires; the surface roughness of the thermoplastic elastomer is improved due to the polyurethane, so that the skid resistance is good; and the cyclohexane is highly volatile, so that a certain space is reserved for the free expansion of the thermoplastic elastomer, and the density is lowered while the resistance to temperature is improved.

A vapor chamber comprises a release film and a vapor chamber board, wherein the vapor chamber board comprises at least one insulation layer and a glue layer arranged on the at least one insulation layer; the release film is arranged on the outer surface of the glue layer; the glue layer is prepared from 35-85 parts by weight of a styrene-butadiene-styrene block copolymer, 5-65 parts by weight of astyrene- ethylene-butylene-styrene block copolymer, 5-35 parts by weight of polyphenyl ether and 3-45 parts by weight of dendritic acrylic oligomer.