65 results about "Styrene-butadiene-styrene triblock copolymer" patented technology

Tie-layer adhesives for styrene polymer resins are provided. The adhesive blend compositions are comprised of ethylene-vinyl acetate copolymer, styrene-butadiene-styrene triblock copolymer, ethylene-propylene rubber and graft-modified polyethylene.

The invention belongs to the technical field of materials for road works, and discloses rubber powder-modified asphalt and a preparation method thereof. The rubber powder-modified asphalt consists of the following components: 100 parts by weight of petroleum asphalt, 15 to 30 parts by weight of rubber powder, 0.5 to 2 parts by weight of styrene-butadiene-styrene triblock copolymer, 2 to 5 parts by weight of aromatic oil, 0.5 to 2 parts by weight of maleic anhydride polymer and 1 to 3 parts by weight of sulfur. The preparation method for the rubber powder-modified asphalt includes the following steps: the petroleum asphalt is heated to 150 DEG C to 170 DEG C, the rubber powder is then added into the petroleum asphalt and mixed, the styrene-butadiene-styrene triblock copolymer, the aromatic oil, the maleic anhydride polymer and the sulfur are added into the mixture after uniform mixture is finished, the mixture is sheared by a shearing machine, and is swelled under an environment with the temperature of 130 DEG C to 150 DEG C for 12 to 18 hours, and therefore the rubber powder-modified asphalt is obtained.

The present invention provides a modified asphalt composition showing excellent ductility and thermal stability at low temperature and the resistance to permanent deformation at high temperature comprising i) 100 wt. part of natural asphalt; and ii) 0.5˜40 wt. part of asymmetric styrene-butadiene-styrene triblock copolymer having number average molecular weight of 20,000˜1,000,000. Modified asphalt composition of present invention can be used for pavement of road or manufacturing water proof sheet.

A process for producing a multilayer structure comprising:

• • contacting an adhesive layer having a first side and a second side, on its first side with a metal layer having a first side and a second side, on its first side at a temperature of 325° F. to 425° F. for a contact time of 0.5 to 5.0 seconds, thereby adhering the adhesive layer to the metal layer. The adhesive layer comprises an ethylene-C_4-8 α-olefin linear low density copolymer; a polymer grafted with an ethylenically unsaturated carboxylic acid or acid derivative; and a styrene-butadiene-styrene triblock copolymer having an MI of 5 to 50.

The invention relates to a transparent foam sole formulation, made from magnesium carbonate, a white foaming agent, bis(tert-butylperoxy) diisopropyl benzene, 2,6-di-tert-butyl-4-methylphenol or butylated hydroxytoluene, transparent zinc oxide, stearic acid, trimethylolpropane triacrylate, silane coupling agent, ethylene-vinyl acetate copolymer, olefin block copolymer, styrene-butadiene-styrene triblock copolymer, and ethylene-propylene-diene monomer rubber, wherein the magnesium carbonate is powdery and has particle size of 40-80 mesh. A sole made by comprehensively selecting formulations and processes is pervious to light, and can meet the requirements of soles in terms of physical parameters such as elasticity, yellowing resistance, and compression set deformation.

The invention discloses an iron-adhesive highway asphalt which is prepared from the following components in parts by weight: 20-40 parts of 90# matrix asphalt, 3-10 parts of styrene-butadiene-styrene triblock copolymer, 3-10 parts of aromatic oil, 2-5 parts of aviation kerosene, 5-10 parts of machine oil, 10-20 parts of rubber, 2-5 parts of terpene resin, 1-5 parts of organic acid, 2-5 parts of adhesive elastomer material, 5-15 parts of kaolin, 3-7 parts of APAO, 2-5 parts of polyethylene and 0.5-2 parts of phosphoric acid. The iron-adhesive highway asphalt has the advantages of low temperature resistance, no embrittling at low temperature, high adhesive force for steel surfaces, and excellent water resistance, and is suitable for cold areas.

Multilayer structures having layers of a styrene polymer, polyethylene, propylene polymer, and common tie layers of a styrene-butadiene-styrene triblock copolymer-containing adhesive.

Belonging to the field of building materials, the invention relates to a cement composite shape-stabilized phase change material mortar, a preparation method and application thereof. The mortar comprises a shape-stabilized phase change material with a particle size of less than 2mm, cement and sand, wherein the shape-stabilized phase change material is formed by taking a paraffin substance as the main heat storage agent, and using high density polyethylene, a styrene-butadiene-styrene triblock copolymer and expanded graphite as an encapsulation support, and the cement accounts for 20%-25% of the total dry weight, the shape-stabilized phase change material accounts for 50%-60% of the dry weight, and the water adding amount accounts for 27%-33% of the dry weight. The invention also provides a preparation method. The cement composite shape-stabilized phase change material mortar provided by the invention can be directly applied to the building wall surface, or be pasted on the building wall surface after being cast in situ into a precast slab to form a composite phase change heat storage wall so as to improve the heat storage capacity of the building envelope structure. The cement composite shape-stabilized phase change material mortar provided by the invention has the advantages of wide material sources, low cost, good storage durability, and wide application range.

A pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer formed from a pressure-sensitive adhesive composition containing a polyisobutylene-based resin (A) having a mass-average molecular weight of 20000 or more, a styrene-based copolymer (B), and a tackifier (C) having a softening point of 135° C. or less, wherein the component (B) is one or more selected from the group consisting of a styrene-butadiene-styrene triblock copolymer (SBS), a styrene-block-(ethylene-co-butylene)-block-styrene triblock copolymer (SEBS), a styrene-isobutylene diblock copolymer (SIB), and a styrene-isobutylene-styrene triblock copolymer (SIBS), has excellent adhesive force, excels in a suppressing effect on moisture intrusion, and has good transparency.

The invention discloses a novel compound material propeller. The novel compound material propeller comprises a framework and a and covering layer, wherein the framework comprises a framework body, a mounting hole and cutouts, wherein the covering layer is adhered to the cutouts; raw materials of the framework body comprise polystyrene, polymethyl methacrylate, polystyrene, polyvinyl chloride, polyolefine, unsaturated polyester resins, styrene-butadiene-styrene triblock copolymer, ethylene-vinyl acetate copolymer, polytetrafluoroethylene resins, polyhydroxybutyrate, short-cut carbon fibers, urea-formaldehyde resins, trimethyl phosphate, zinc stearate, a dispersing agent, a silane coupling agent KH-560, and rigidity strengthening addition agents. The novel compound material propeller disclosed by the invention is high in strength, good in rigidity, light in weight, stable in structure, and excellent in weatherability, and the service life is prolonged.

The invention discloses a preparation method of a high temperature resistant PSA tape for a capacitor. The method includes mixing a styrene-butadiene-styrene triblock copolymer with a reaction solvent with stirring, heating up for dissolution, adding active monomers and initiators in batches under the protection of nitrogen, reacting for a moment and adding tackifying resin and curing agents, reacting for a moment and cooling to obtain the PSA, coating the PSA on a base material, coating a separant on the back side of the base material, and drying to obtain the PSA tape. According to the preparation method, the production cost is reduced, the melting temperature of the PSA is improved to above 170 DEG C from below 100 DEG C when the PSA is unmodified, the obtained high temperature resistant PSA tape has firm adhesion without falling off or displacement, leads have no adhesive residue, the problem that a core is bonded and difficult to pull during a board removal is solved, and production technology requirements for capacitors are satisfied.

The invention relates to a method for preparing mesoporous silicon dioxide, the method is characterized in that mercapto-vinyl can be used for a free radical addition reaction, organo-silicone containing a mercapto group and polybutadiene block of triblock copolymer of styrene-butadiene-styrene are reacted, an organo-siloxane modified styrene-butadiene-styrene triblock copolymer can be obtained, then the organo-siloxane modified styrene-butadiene-styrene triblock copolymer is carried out a sol-gel reaction with a silicon source under the acidic or alkaline condition to form gel, the mesoporous silicon dioxide is obtained after cracking the gel. Compared with the prior art, the mesoporous silicon dioxide material has the average pore diameter of 5-18nm, the pore volume of 0.24-0.30 cm<3>/g, the specific surface area of 418-480 cm<2>/g, and has the advantages of cheap raw material and easy raw material acquisition, mild reaction condition, simple and high efficient preparation process, safety and environmental protection, and is convenient for large scale production.

The invention provides SBS (styrene-butadiene-styrene triblock copolymer) and liquid rubber composite modified emulsified asphalt and a preparation method thereof. The composite modified emulsified asphalt is prepared from the following components in parts by weight: 45-75 parts of SBS and pasty liquid rubber composite modified asphalt, 22-45 parts of water, 0.01-1.6 parts of a crosslinking agent, 2.5-13 parts of a cationic asphalt emulsifying agent, 0.5-3.0 parts of a stabilizing agent and 0.1-2.5 parts of a pH value regulator. By adopting the SBS and liquid rubber composite modified emulsified asphalt provided by the invention, the technical problem that rubber powder modified asphalt is difficult to emulsify can be solved, prepared liquid rubber can be subjected to emulsification more easily, and composite SBS is added to ensure that the pavement performance of the composite modified emulsified asphalt can be greatly improved, and wider application ranges in road maintenance and engineering construction of roads under construction can be achieved. In addition, by applying the pasty liquid rubber, good economical performance can be achieved, and waste tires can also be effectively used.

The present invention discloses a flexible pipe material for a temperature resistant and thermoplastic elastomer and a preparation method thereof. The material is composed of the following components, by weight percentage: 25-45% of a styrene-butadiene-styrene triblock copolymer, 20-40% of a dynamic vulcanization master batch, 20-40% of a plasticizer, and 15-25% of a filling material. The dynamic vulcanization master batch is composed of the following components, by weight percentage: 35-50% of a polyolefin elastomer, 15-30% of a rubber material, 25-45% of a thermoplastic resin, 1-4% of a crosslinking agent, and 0.2-0.6% of an auxiliary crosslinking agent. The invention also discloses a preparation method of the flexible pipe material for the temperature resistant and thermoplastic elastomer. According to the invention, the polyolefin elastomer is combined with the rubber material, and a chemical crosslinking structure is introduced through dynamic vulcanization, so as to reinforce the styrene-butadiene-styrene triblock copolymer material; and high temperature and hot water resistance of the styrene-butadiene-styrene triblock copolymer material is greatly improved, so as to avoid deformation leakage and rupture for long-time cycle working.

The invention discloses an inorganic fireproof decoration material capable of releasing negative oxygen ions, and a preparation method thereof. The material is prepared from, by weight, 30-50 parts ofa silicon-acrylic emulsion, 10-25 parts of heavy calcium carbonate-supported graphene oxide, 10-20 parts of tourmaline powder-supported carbon nanotubes, 12-25 parts of titanium dioxide, 10-15 partsof rare earth, 8-16 parts of potassium titanate whiskers, 3-8 parts of magnesium hydroxide, 5-10 parts of perlite micro-powder, 6-10 parts of antimony trioxide, 4-9 parts of a titanate coupling agent,3-6 parts of a functional assistant and 15-30 parts of water, wherein a mixture of the magnesium hydroxide, perlite micro-powder and antimony trioxide is modified with a maleic anhydride-grafted hydrogenated styrene-butadiene-styrene triblock copolymer. The decoration material prepared in the invention has the advantages of high mechanical strength, good air purification effect and excellent flame retardant performance, so the material has a broad application prospect in the field of decoration materials.

The invention provides color bituminous cement in bags or barrels and production device and method thereof. The bituminous cement contains the following components in parts by weight: 8-15 parts of SBS, 35-50 parts of petroleum resin, 30-45 parts of aromatic oil and/or naphthenic oil, 3-10 parts of polyethylene wax and/or microcrystalline wax and 0.3-1.0 part of antioxidant, wherein the SBS is linear and/or star styrene-butadiene-styrene block copolymer, the block ratio of styrene to butadiene is 30/70, and the molecular weight is 100000-200000. The color bituminous cement provided by the invention has the advantages of easily available raw materials for production, convenient operation of production device, safety and reliability of products, superior performance, high percent of pass, stable product quality and performance, conveniently adjustable product variety and strong adaptability.

The invention provides a preparation method of modified bamboo fiber reinforced anti-aging styrene-butadiene rubber. The preparation method comprises the following steps that firstly styrene-butadienerubber and a modified polarized styrene-butadiene-styrene triblock copolymer are subjected to mixing, the mixing temperature is 80-95 DEG C, and the time is 2-5 min; then carbon black, zinc oxide, stearic acid, modified bamboo fibers and gamma-glycidoxypropyltrimethoxysilane modified zinc oxide are added sequentially; and finally, an accelerant D, an accelerant TMTD, an anti-aging agent 4020 andsulfur are added, then mill run and triangle packaging are performed, piece discharging is performed after mixing for 4-8min, and rubber materials are stored for 24h and then vulcanized. The modifiedbamboo fiber reinforced anti-aging styrene-butadiene rubber has good aging resistant performance and excellent mechanical properties.

The invention discloses a high-pressure-tolerant slow-leakage-rate gasket material for a beer bottle cap and a preparation method of the material. The gasket material is prepared by the step of carrying out blending and melt-extrusion on 40-70 parts of low-density polyethylene, 20-40 parts of styrene-butadiene-styrene triblock copolymers, 10-20 parts of high impact polystyrene and 0.1-1 part of lubricating agent according to parts by weight. A gasket prepared by the gasket material provided by the invention has the characteristics of high pressure proof, slow leakage rate and environmental friendliness and is accordant with performance requirements of European Union environmental protection standards and government standards on the gasket. According to the preparation method of the gasket material provided by the invention, the process is simple and easy to control, the requirement on a facility is low, all used facilities are universal polymer process facilities, the investment is not high, and the popularization and application are easy.

The invention discloses a preparation method of modified granite aggregate, and an adhesion testing method. The preparation method comprises the following process steps: heating styrene-butadiene-styrene triblock copolymer (SBS) modified asphalt, then adding a liquid anti-stripping agent into the heated SBS modified asphalt, stirring evenly, and placing the obtained mixture in an environment of 175-180 DEG C to prepare a mixed solution a; weighing granite aggregate and cement, and heating up to 175-181 DEG C; then, uniformly stirring the heated granite aggregate and cement, and carrying out heat preservation at 175-180 DEG C to obtain a mixture b; blending the mixed solution a in a mixing container, adding the mixture b during blending, and uniformly stirring to obtain the modified graniteaggregate. The modified granite aggregate is placed in a constant temperature water bath at 76-84 DEG C, part of the aggregate is taken out and put into cold water at set intervals, and the aggregateis completely taken away in 4-6 times; finally, the adhesion grade is evaluated according to the percentage of a stripping area. The modified granite aggregate prepared by the method is strong in adhesion durability and good in water stability, and achieves the level-5 adhesion requirement of the asphalt pavement. The invention also discloses an adhesion evaluation method which is convenient to apply and has a good correlation with engineering.

The invention relates to the field of petrochemical industry, in particular to a method for preparing modified asphalt. The method for preparing the modified asphalt comprises the steps: the asphalt is heated up to 70-210 DEG C, star-shaped styrene butadiene styrene triblock copolymer is added as modifying agent for once, and evenly stirred; and then, cross linker sulfur is added again for once, and evenly stirred. The modified asphalt prepared by the method has the superior performances of high softening point, good low temperature ductility and storage stability, low SBS mixing quantity and sulfur mixing quantity, less environmental pollution, etc.

The invention relates to a premix and copolymerization type asphalt mixture compound modifier. The compound modifier is prepared from, by weight, 50-70% of modified polyethylene particles, 20-30% of activated modified waste rubber powder and 10-20% of SBS asphalt modifier. The modified polyethylene particles are prepared by evenly mixing polyethylene particles and glycidyl methacrylate according to the mass ratio of 100:5 and conducting mechanical stirring reaction for 1 h at 90-100 DEG C; the activated modified waste rubber powder is prepared by mixing waste rubber powder and naphthenic rubber oil according to the mass ratio of 100:5 and conducting mechanical stirring for 50-60 min at 90-100 DEG C; the SBS asphalt modifier is a styrene-butadiene-styrene triblock copolymer. The problem that a simple polymer is simplex in modification effect is solved, all performance of the asphalt is comprehensively improved, and meanwhile the polymer modification cost is reduced.