2019results about "Conjugated diene hydrocarbon adhesives" patented technology

A coated print bed for a 3D printer having a permanent print-surface coating permanently secured to a print bed substrate plate, having a smooth, planar surface that provides an adhesive interface layer between a first layer of an applied plastic print material and the coated print bed. The coating contains a matrix-forming compound, such as a solvent- or water-based epoxy resin, an adhesive material, and optionally a filler. The user can print a series of print object directly onto the permanent print surface coating of the coated print bed, without having to refresh or refurbish the print surface, such as by applying to the print bed surface a temporary coating such as painter's tape, or a liquid adhesive.

The invention provides a reaction bonding type node sealant and a preparation method thereof. The sealant comprises asphalt, modifiers, an emulsifier, a crosslinking agent, thickeners, a reinforcing agent and water. In the formula system, more appropriate modifiers are adopted compared with the prior art, so that a rubber asphalt mixture can achieve good emulsification effect, elasticity and strength of a sealing layer after drying are greatly improved, and the sealing effect can be good and lasting; the chemical linkage effect with concrete is formed by using the crosslinking agent, and bonding force with the concrete is improved; and a lot of thickeners are used for adjusting the stickness of the sealant system, so that the reaction bonding type node sealant can better adhere to the surface of a pentatricopeptide repeats (PPR) or polyvinyl chloride (PVC) pipe, and good sealing at positions where PPR or PVC water supply and drainage pipes are connected with base surfaces of concrete.

A thin image display apparatus capable of high luminance and high contrast display of a display part, which does not produce display defects resulting from deformation of the image display part. The thin image display apparatus has an image display part and a light-transmitting protective part arranged on the image display part. A cured resin layer is arranged between the image display part and the protective part. The cured resin layer has a transmittance in the visible region of 90% or higher and a storage modulus at 25° C. of 1.0×107 Pa or less. The cured resin layer is formed from a resin composition which has a curing shrinkage ratio of 5.0% or less.

A transfer film configured for transferring optical beads to a substrate is disclosed. The transfer film typically contains optical beads, a temporary bead carrier layer retaining the optical beads, and an optional adhesive layer configured to permanently adhere the optical beads to a substrate. The temporary bead carrier layer contains a carrier backing and a heat-resistant carrier coating that temporarily holds the beads during application at elevated temperatures to a substrate. The carrier coating is formed such that it initially softens to retain the beads, but is then hardened or thermoset (such as by crosslinking) to prevent the carrier coating from softening during transfer of the beads to a substrate.

A thin display unit that incorporates a high-luminance, high-contrast display part that is free of image detects caused by the deformation of the display part is provided. The display unit of the present invention includes an image display part 2 and a light-transmitting protective part 3 arranged on the image display part 2. A cured resin layer 5 is arranged between the display part 2 and the protective part 3. The cured resin layer 5 has a transmittance of 90% or higher in the visible range and a storage modulus at 25° C. of 1×10⁷ Pa or less. The cured resin layer 5 is formed from a resin composition that has a cure shrinkage of 5% or less.

The invention discloses a method for making a clutch facing by using phenolic resin as adhesive. The method comprises the following steps that: (1) the latex modified water soluble phenolic resin is used as the adhesive to make the clutch facing, and water is used as solvent, and the adhesive and the solvent are mixed by stirring and prepared into pulp; (2) fibers are impregnated in the pulp; (3) fibers containing the pulp are dried; (4) the dried fibers containing the pulp are wound to become blanks; (5) blanks are heat moulded; (6) the clutch facing is obtained after subsequent treatments. The method of the invention has the advantages of saving a large amount of organic solvent, avoiding the environmental pollution caused by the consumption and the volatilization of the solvent, greatly saving the energy used for the preparation of the pulp and saving equipment cost on aspects of safety, fire fighting and environmental protection and management cost; moreover, the clutch facing made by the method of the invention is excellent in performance.

The invention provides a bi-component adhesive composition composed of an A component and a B component. The A component contains an epoxy resin mixture, a first toughening agent, filler and a thixotropic agent; the B component contains a second toughening agent, a normal temperature curing agent, a high-temperature curing agent and an accelerant; the epoxy resin mixture contains a first epoxy resin, a second epoxy resin and a third epoxy resin, the first epoxy resin is a bisphenol A epoxy resin or a bisphenol A epoxy resin, the second epoxy resin is a chelate modified epoxy resin, and the third epoxy resin is a naphthalene-nucleus modified epoxy resin; the first toughening agent is a core-shell structure rubber nano particle, the second toughening agent is an end-isocyanate polyurethane and/or end-carboxy nitrile rubber. The invention further provides a preparation method of the bi-component adhesive. The adhesive composition provided by the invention is high in adhesion strength, high in heat resistance, low in water adsorption, high in impact resistance, and capable of satisfying the use requirement of structural adhesive for connecting structural members of an automobile.

The invention discloses a modified epoxy resin adhesive, which comprises the following components in portion by weight: 10 to 50 portions of epoxy resin, 20 to 80 portions of toughening agent, 0.2 to 5 portions of curing agent, 0 to 2 portions of curing accelerant, 0 to 1 portion of assistant, 2 to 15 portions of inorganic filler and 20 to 80 portions of solvent. In order to overcome the defects in the prior art, the invention provides the modified epoxy resin adhesive with strong flexibility, high peeling strength, good flexure property, good size stability, strong chemical corrosion resistance and excellent electric performance, and a method for producing the modified epoxy resin adhesive.

The invention relates to a light and high-strength rubber conveyor belt and a preparation method tof the conveyor belt. The conveyor belt comprises a framework layer, an adhesive glue, and upper and lower cover rubber laminated structures; the framework layer adopts mixed woven canvas of ultra-high molecular weight polyethylene fibers and polyester fibers which are treated by plasma, simultaneously adopts low-temperature vulcanization technology to be subjected to covulcanization with the adhesive glue and a cover rubber at a low temperature, and solves the problem of the bonding of ultra-high molecular weight polyethylene fiber cloth and rubber. Compared with the conventional high-strength conveyor belt of wire rope core, the light and high-strength rubber conveyor belt in the invention not only has high strength, and good corrosion resistance, wear resistance, shock resistance and fatigue resistance, but also greatly reduces the weight and thickness, thereby reducing the conveying power energy consumption, which is expected to have long service life and good energy saving and environment friendly performances. Therefore the light and high-strength rubber conveyor belt disclosed in the invention is particularly suitable for the long-distance material conveying in the industries of coal mine, metallurgy, mine and the like.

The invention provides a high-temperature resistant conveyer belt which comprises a framework layer and a covering glue layer which covers the surface of the framework layer, wherein the framework layer is made of a metal material; the covering glue layer is mainly made of ethylene propylene diene monomer rubber and chloroprene rubber and is added with a fire retardant agent, trichloroethyl phosphate, a binding agent and a binding improver apart from a main cross-linking agent, an auxiliary cross-linking agent, an activating agent, an anti-aging agent, a reinforcing agent, a dispersing agent and a softening agent, wherein the binding agent comprises phenolic resin and hexakis(methoxymethyl)melamine; and the binding improver comprises maleic anhydride complexing butadiene and liquid natural rubber. The high-temperature resistant conveyer belt provided by the invention can be used at a temperature of 300 DEG C and has good firing bonding performance and firing resistant performance.

This invention relates to improved adhesion compositions and textile materials and articles treated therewith. The improved adhesion composition comprises a non-crosslinked resorcinol-formaldehyde and/or resorcinol-furfural condensate (or a phenol-formaldehyde condensate that is soluble in water), a rubber latex, and an aldehyde component such as 2-furfuraldehyde. The composition may be applied to textile substrates and used for improving the adhesion between the treated textile substrates and rubber materials. End-use articles that contain the treated textile-rubber composite include, without limitation, automobile tires, belts, and hoses as well as printing blankets.

The invention relates to an adhesive for a lithium ion battery, and discloses an adhesive containing sodium carboxymethyl cellulose copolymers covalently grafted with sodium polyacrylate and an electrode slice and electrochemical device prepared from the adhesive. Compared with an adhesive in the prior art, the adhesive is strong in cohesiveness, good in electrochemical stability and especially suitable for the lithium ion battery with silicon as an anode, the capacity of the lithium ion battery can be remarkably improved, the circulating stability of the battery can be improved, and the coulombic efficiency of the battery can be improved.

The invention discloses a tube-shaped flame retardant conveying belt with fabric laminations for a coal mine, which solves the problem that exiting products are not suitable for usage for underground conveying belts with laminations for coal mines. The conveying belt is characterized by comprising an upper flame retardant covering adhesive layer, a lower flame retardant covering adhesive layer, a side adhesive, skeleton layers, a flame retardant bonding layer and a buffering layer. A flame retardant bonding adhesive is used for bonding among the skeleton layers, among the skeleton layers and buffering layer and between the buffering layer and the upper flame retardant covering adhesive layer to form a whole, and formulas of the flame retardant bonding adhesive and a flame retardant covering adhesive are designed. Flame retardant epoxide resin (EP) canvas which is subjected to flame retardant impregnation processing serves as a skeleton, produced conveying belts have high pipe forming capability, conveying belt bodies have suitable softness, and produced conveying belts can meet turning requirements of tube-shaped conveying belts at different levels and requirements of tube-shaped conveying machines on physical mechanical properties of tube-shaped conveying belts; a flame retardant bonding adhesive material has high infiltration capacity on skeleton materials, after sulfuration, the bonding force of the flame retardant bonding adhesive material is large, dynamic heat is small, and the flame retardant bonding adhesive material has repeated bending fatigue resistance; and abrasion resistant and yielding resistant performance of the flame retardant bonding adhesive material is improved, and the flame retardant performance meets underground flame retardant requirements for coal mines.

The invention relates to a preparation method for a basalt fiber conveying belt, and belongs to the technical field of rubber products. The preparation method comprises the following steps: performing hydrochloric acid treatment, coupling agent treatment and plasma grafting and impregnation treatment on basalt fiber cloth; mixing natural rubber, synthesized rubber, an activating agent, an anti-aging agent, a reinforcement agent and a plasticizer to obtain a first section of mixed rubber; adding a promoter and a vulcanizer for mixing to obtain a second section of mixed rubber, and extruding the second section of mixed rubber to obtain a coverage rubber sheet; mixing the natural rubber, the synthesized rubber, the activating agent, the anti-aging agent, an adhesive, the reinforcement agent and the plasticizer to obtain a first section of mixed rubber; then adding the promoter, the vulcanizer and an adhesive RA for mixing to obtain a second section of mixed rubber, freshening after the second section of mixed rubber is stewed, and attaching the second section of mixed rubber and the basalt fiber cloth to obtain rubberized canvas; attaching the basalt fiber rubberized canvas layer by layer to obtain a framework, attaching the coverage rubber sheets to the upper surface and the lower surface of the framework to obtain a belt blank, and vulcanizing the belt blank to obtain the basalt fiber conveying belt. The conveying belt prepared by the preparation method is low in cost, light in mass, high in intensity, fatigue-resistant and long in service life; the conveying energy consumption can be greatly reduced.

The invention discloses a modified asphalt adhesive and a preparation method thereof. The preparation method comprises the following steps: pumping fused asphalt in a stirring kettle; starting a stirring paddle, wherein, the stirring speed is 60-200 revolutions/min, and the material temperature is 120-150 DEG C; stirring for 10-30min; adding styrene-butadiene block copolymer (SBS) and styrene butadiene rubber (SBR) and continuously stirring; heating to 160-180 DEG C; stirring for 1-2h; keeping the stirring temperature and the stirring speed; adding tackifier; continuously stirring for 30-60min; adding rubber powder and filler in sequence; continuously stirring for 30-60min; and grinding by a colloid mill to obtain the modified asphalt adhesive with good performance.

The invention discloses a multipurpose aqueous adhesive, which comprises the following parts: 10-35% thermoplastic rubber or emulsion, 0. 5-35% solvent, 28-45% emulsion, 20-80% viscosifying resin or its emulsion, 0. 5-5% functional adjuvant and 1-20% water. The making method comprises the following steps: putting the solvent into autoclave; stirring at middle speed and adding thermoplastic rubber and its modifying product until dissolving completely; or putting into copolymerized rubber emulsion directly; stirring to add the viscosifying resin or the viscosifying resin in the invention; blending evenly; adding emulsion; fetching the sample to test the viscosity; adding fitful quantity of water and corresponding functional adjuvant according to the purpose and viscosity; dispersing at high speed until even condition; cooling; filtering; packing; obtaining the product for shoe-making, hand pocket and decorative aspect with low cost.

UV-cured pressure sensitive adhesive including one or more UV-curable acrylic oligomers, one or more tack control components, and, optionally, an elastomeric material is described herein. The adhesive includes an adhesive component ratio of the various adhesive components effective to provide desired first peel adhesions and subsequent peel adhesions.

The invention relates to water-base joint grouting glue for a normal temperature road, namely an environment-friendly joint grouting and joint sealing material having high viscosity, high cementing power and high adhesive property, which is formed by special processes of copolymerizing water, a water-base adhesive, bitumen and a dispersing agent, then modifying a macromolecular water-soluble resinand a rubber latex, and adding the auxiliary agents of a stabilizing agent, a thickening material and the like, and can be used for treating and sealing various types of cracks of bitumen and cementroad surfaces and joint seams of cement road surfaces and bridge surfaces. The joint grouting glue is in a gel state at normal temperature, can be stirred but cannot flow, thus the joint grouting gluecan enter joints directly without slotting and cannot infiltrate downwards so as to play a role in sealing the joints; and simultaneously the joint grouting glue is soluble in water; therefore, the joint grouting glue can be mixed with water to prepare strong-permeability joint grouting materials with any viscosities, and can be effectively poured into deep parts of the cracks of road surfaces without slotting. The joint grouting glue combines the advantages of slotting and non-slotting repairing methods, and simultaneously avoids the disadvantages of the two methods.

The invention discloses a frame sealing adhesive and a preparation method and application thereof. The frame sealing adhesive comprises the following component: epoxy resin, a curing agent, a rubber powder, an organic filler, a thixotropic agent, a silane coupling agent and a solvent. The frame sealing adhesive has excellent storage performance and an adhesive applying manner suitable for screen printing and is used for sealing a side frame of a TN (twisted nematic) (STN-super twisted nematic) liquid crystal box; in addition, the solidified frame sealing adhesive has the advantages of low hydroscopic property, long-lasting and excellent sealing performance, excellent heat resistance and electric insulation performance, no pollution to liquid crystal, high rigidity, high toughness and high size stability, and important application value.

The invention discloses a hot-melt adhesive for a steel-plastic composite pipe, which is prepared by blending and extruding the following components in percentage by weight by a parallel double screw extruder: 5-40% of binding resin master batch, 50-80% of polyolefin resin, 5-25% of tackifying resin and 0.02-5% of inorganic rare-earth oxide, wherein the binding resin is prepared by carrying out graft modification on polyethylene and/or ethylene copolymer, which is/are used as the matrix resin, and initiator (accounting for 0.01-0.2 wt% of the binding resin master batch) and unsaturated polar monomer (accounting for 0.1-5 wt% of the binding resin master batch); the polyolefin resin is used for adjusting the consumption of the binding resin master batch and the comprehensive properties of the hot-melt adhesive; and the tackifying resin is one or combination of SBS (styrene-butadiene-styrene), SEBS (styrene-ethylene-butadiene-styrene), SIS (styrene-isoprene-styrene), cis-1,4-polybutadiene rubber, nitrile-butadiene rubber and natural rubber. Since the rare-earth oxide is added, the grafting ratio of the binding resin master batch in the hot-melt adhesive is increased, thereby obviously enhancing the initial viscosity, enduring viscosity, binding strength and other properties.

The invention belongs to the technical field of epoxy resin adhesives, and particularly discloses a single-component epoxy resin conductive silver adhesive composition and a preparation method thereof. The composition contains the following components in parts by weight: 10-25 parts of epoxy resin, 1-5 parts of diluter, 0.5-3 parts of toughening agent, 0.5-3 parts of enhancer, 0.5-3 parts of solvent, 0.5-3 parts of coupling agent, 0.5-3 parts of anti-aging agent, 1-5 parts of curing agent, 0.2-1 part of accelerator and 30-35 parts of silver powder. The preparation method of the composition comprises the following steps: thoroughly and uniformly mixing all the components except silver powder at 20-35 DEG C, adding the silver powder, thoroughly and uniformly mixing, and carrying out vacuum degassing under stirring conditions to obtain the finished epoxy resin conductive adhesive composition product. The composition has the advantages of low viscosity, favorable condensate strength, high adhesive force, low volume resistivity, high heat conductivity, long shelf life, favorable long-term weather resistance and stable electric properties, and can be widely used in electronic industry and other conductive adhesive industries.

The invention relates to a high performance tire fabric rubber compound with a resorcinol-formaldehyde adhesion system, and comprises outer layer cord fabric rubber compound and cushion rubber compound. The key points are that: the invention is made by a plurality of raw materials, wherein, the adhesion system thereof adopts the resorcinol-formaldehyde adhesion system. The raw materials of the outer layer cord fabric rubber compound are natural rubber, rosin extended styrene-butadiene rubber, butadiene rubber, carbon black N330/N660, zinc oxide, stearic acid, age inhibitor 4010NA/RD /BLE, oil-extended butadiene sulphur powder (S), aromatic oil, accelerant CZ/TMTD, RF-90 resin and adhesive RA-65. The raw materials of cushion the rubber compound are natural rubber, rosin extended styrene-butadiene rubber, carbon black N330/N660, zinc oxide, stearic acid, age inhibitor 4020/RD, oil-extended butadiene sulphur powder (S), aromatic oil, accelerant CZ/TMTD/DM, vulcanized agent DTDM, RF-90 resin and adhesive RA-65. The invention is essentially used for the outer layer cord fabric rubber compound and the cushion rubber compound in a bias tire. H pullout force can be obviously enhanced by using the rubber compound of the invention; the problem of cord fabric delaminating in practical use can be reduced by using the bias tire made from the rubber compound of the invention.

The invention provides an adhesive sheet for steel plate that can abate the emission of organic volatile components, while providing good reinforcing effect and vibration suppression effect. In an adhesive sheet for steel plate comprising a restricting layer and a resin layer, the restricting layer comprises a resin-coated glass fiber cloth made by weaving glass fiber bundles, which are formed by bundling a plurality of glass filaments, into a glass fiber cloth and impregnating epoxy resin composition in the glass fiber cloth, the resin-coated glass fiber cloth having air permeability of not more than 0.5 cm³/cm²/sec. and a permeability rate of the epoxy resin composition to the glass fiber bundles in the range of 20-70%.