1360 results about "Synthetic resin" patented technology

An aqueous ultraviolet-absorbing resin emulsion, and an aqueous resin emulsion composition containing the emulsion is provided, wherein the emulsion is excellent in compatibility with a synthetic resin and light resistance. Also, the emulsion improves stability in blending with an aqueous emulsion of the synthetic resin, and prevents bleed out of the ultraviolet-absorbing resin on the surface of a coating film. Further, the aqueous ultraviolet-absorbing resin emulsion imparts excellent alkali or solvent resistance to a synthetic resin poor in alkali or solvent resistance. More specifically, an aqueous resin emulsion composition comprising (I) an aqueous ultraviolet-absorbing resin emulsion and (II) an other aqueous resin emulsion is provided, wherein the emulsion (I) is obtained by urethanizing (A) a polyol component having an ultraviolet-absorbing group {e.g., 1,1-bis[3-(2H-benzotriazol-2-yl)-4-hydroxy-benzeneethanol]methane}, (B) a polyol if necessary, (C) an alkyl or aryl dialkanolamine compound, and (D) an organic polyisocyanate in (E) an organic solvent, diluting the reaction mixture with (F) an organic solvent having a boiling point lower than 100° C. to give a resin solution, neutralizing the resin solution with (G) a neutralizing agent, and dispersing the resultant in water.

To solve the problem that a conventional large-sized resin photomask storage case cannot be integrally molded by injection molding, and accordingly respective components are created by bonding.SOLUTION: A photomask storage case is composed of a lower case part made of a synthetic resin, and an upper case part blocking the lower case part, wherein the lower case part is composed of a photomask fixing frame which has a fixing part for mounting and fixing a stored photomask, and is composed of a metal frame body, and a lower case body in which the fixing frame is detachably provided. The lower case body is integrally molded by vacuum molding.SELECTED DRAWING: Figure 2

Provided is a magnetostrictive torque measurement device that makes it easy to ensure accuracy of torque measurement, sensitivity of torque measurement, or both. A magnetostrictive torque measurement device 1 comprises: a rotary shaft 2 that has a detected part 4 that has magnetostrictive characteristics at a portion in the axial direction of an outer circumferential surface; and a magnetostrictive torque sensor 3. The magnetostrictive torque sensor 3 includes: a holder 5 that is formed from a synthetic resin, has an inner circumferential surface 7 that is loosely fitted in the radial direction onto the outside of the detected part 4 so as not to rattle, and does not rotate even during use; and a coil unit 6 that is held by the holder 5 and has a detection part 12 that includes a plurality of detection coils 11 (11a–11d).

To provide a synthetic resin canvas (and a method for producing the same) having cotton canvas appearance, stable in balance of warp and weft dimensions, and hardly causing dimensional change.SOLUTION: A synthetic-resin canvas having a mass of 360 to 800g / m2, the synthetic-resin canvas being obtained by providing a soft vinyl chloride-resin-impregnated coating layer on an entire surface of a fabric, wherein the fabric is a plain weave fabric, a twill weave fabric, or a satin weave fabric, and a 10% tensile stress in a widthwise direction of the synthetic-resin canvas is 90 to 110% of a 10% tensile stress in a processing direction. Especially, the fabric is composed of a short fiber spun yarn, a combination of a short fiber spun yarn and a long fiber multifilament bulky yarn, or a long fiber multifilament bulky yarn, and the difference between the total fineness per inch (dtex / inch) of the weft yarn group and the total fineness per inch (dtex / inch) of the warp yarn group is within ± 10%.SELECTED DRAWING: None

A fuel injection valve support structure simple in structure is provided which is capable of preventing a fuel injection valve from rotating about an axis of a valve housing thereof without providing a special rotation-preventing piece on an elastic support member. In this support structure, a base plate (15) of an elastic support member (S) is provided with a notch (19) which receives a valve housing (1). A rotation-preventing protrusion (20) which engages with the notch (19) to prevent rotation of a fuel injection valve (I) about an axis (A) of the valve housing (1) is formed on a synthetic resin formation part (6) which covers the valve housing (1) while protruding a coupler (14) to one side.

The invention discloses an anti-seepage, water-locking and fertilizer-retaining sandy land soil conditioner, and relates to the technical field of sandy land soil improvement, the anti-seepage, water-locking and fertilizer-retaining sandy land soil conditioner comprises the following raw materials by mass: 50-60% of decomposed cow dung; 15 to 20% of modified straw fiber; 12 to 15% of a sodium carboxymethyl cellulose solution with a concentration of 0.1%; 3 to 5% of bentonite; 1-2% of a microbial agent; 0-15% of a slow-release compound fertilizer; 0.5-1% of polyglutamic acid; and 0.5-1% of a stone-chitosan coating agent. The invention also discloses a preparation method of the anti-seepage, water-locking and fertilizer-retaining sand soil conditioner. The preparation method comprises the following steps: step 1, straw modification; step 2, cow dung decomposition; step 3, preparing a colloidal solution; step 4, mixing and granulating; step 5, coating treatment; and step 6, post-processing. By adopting agricultural wastes as main raw materials, resource utilization of the wastes is realized, and a biodegradable material is introduced to replace synthetic resin, so that the degradation period is shortened to 18-24 months.

To sufficiently prevent deformation of a heel portion of a low-cut shoe without impairing wearing comfort.SOLUTION: A low-cut shoe 1 comprises a shoe body 10 and a heel core material 20 that is interposed between an inner fabric I and an outer fabric O of a heel portion 11c adjacent to a shoe opening 11a of the shoe body 10. The heel core material 20 is made of a synthetic resin and has a net-like structure formed of a plurality of openings 24 arranged in parallel. As a result, the heel core material 20 is provided with good flexibility and elasticity, is elastically deformable into a fallen state when the heel portion 11c is stepped on with a foot, and is capable of returning to its original upright state when the foot is fitted into the shoe body 10. Accordingly, deformation of the heel portion 11c is prevented. Since the heel core material 20 is also highly flexible, it does not cause discomfort even when it contacts the foot, and wearing comfort is not impaired.SELECTED DRAWING: Figure 1

The invention discloses a four-layer composite co-extrusion synthetic resin tile and a preparation method thereof, and relates to the field of resin tiles. A four-layer composite co-extrusion synthetic resin tile is characterized in that four material layers are co-extruded and thermally sealed into a whole, and the four material layers comprise a weather-proof surface layer, a first framework layer, a sound insulation and heat insulation layer and a second framework layer which are sequentially arranged from top to bottom; the sound insulation and heat insulation layer comprises the following raw materials in parts by weight: 90-100 parts of first PVC resin; 6-12 parts of a foaming agent; 1-2 parts of a lubricant; 1-3 parts of a heat stabilizer; 5-9 parts of a plasticizer; 10 to 20 parts of modified wood powder; the surface of the modified wood powder is coated with an acrylate polymer. The synthetic resin tile prepared by the invention has relatively strong sound insulation and heat insulation effects and cold shock resistance.

According to the parallel working type synthetic resin in-mold expansion foaming batch forming device and method, the three procedures of mold filling of raw materials, steam foaming work and product cooling and taking out are independent of one another, work in parallel and do not interfere with one another, continuous production is achieved, the time fault tolerance is greatly improved, the single-piece production period is effectively shortened, and the production efficiency is improved. The overall production efficiency is improved; after the steam tank is started to work, the steam tank is continuously used and continuously keeps a hot state, so that the consumption of steam can be effectively reduced, and the carbon reduction performance of energy is outstanding; the surface of the upper mold and the surface of the lower mold are additionally provided with air holes which are widely and comprehensively covered, venting plugs which stop raw material foaming particles from passing but can allow water vapor to pass are additionally arranged in the air holes, the radiating surface of the water vapor in a mold cavity is increased, each raw material foaming particle is considered, and the water vapor penetrates through each particle gap, so that heating is more uniform; the foaming particle size is consistent, the density is uniform, the mechanical property is greatly improved, and the appearance quality is excellent.

The invention provides low-dielectric and high-heat-resistance adamantane type maleimide resin as well as a preparation method and application thereof, and belongs to the technical field of synthetic resin for electronic materials. The preparation method comprises the following steps: S1, dissolving an adamantane type amino compound to obtain a solution A; dissolving maleic anhydride to obtain a solution B; s2, dropwise adding the solution A into the solution B; s3, acetic anhydride and a catalyst are added into the solution obtained after the stirring reaction in the step S2, then the temperature is increased to 90-110 DEG C, and a heat preservation reaction is conducted for 4-6 h; and S4, cooling the solution subjected to the heat preservation reaction in the step S3, and then washing and removing the solvent to prepare the low-dielectric and high-heat-resistance adamantane type maleimide resin. The adamantane type maleimide resin provided by the invention can solve the problems of poor solubility and high brittleness of maleimide resin, and meanwhile, the resin is endowed with excellent heat resistance. In addition, the adamantane type maleimide resin can also be used for preparing copper-clad plates with low dielectric constant and low dielectric loss.

The present disclosure provides a frequency-sensitive shock absorber capable of implementing target performance of damping force by preventing a valve portion formed of a rubber material or a synthetic resin material constituting a pilot valve of a valve assembly from peeling in a high-pressure and high-temperature environment and securing a flow path, and a valve assembly employed therein. An upper pilot valve and a lower pilot valve each include a base portion in the form of a metal plate and a valve portion integrally molded with the base portion as an elastic material passes through a molded hole formed in a penetrating manner in the base portion, and elastically deformed vertically.

The invention discloses a preparation method of a controlled-release fertilizer for mechanical transplanting rice seedling raising subsoil and application of the controlled-release fertilizer to replace field fertilization, and belongs to the technical field of rice cultivation. A coating of the controlled-release fertilizer is prepared from the following components in parts by weight: 20 to 60 parts of low-density polyethylene resin, 10 to 20 parts of ethylene-vinyl acetate copolymer, 5 to 30 parts of synthetic resin biodegradation inducer, 3 to 15 parts of starch, 10 to 70 parts of talcum powder and 0.2 to 2 parts of nonionic surfactant. The controlled-release fertilizer comprises urea and a compound fertilizer which are respectively coated by the coating film. According to the controlled-release fertilizer for the machine-transplanted rice seedling raising subsoil, a coating material is optimized, the release inhibition period of the controlled-release fertilizer is 20-30 days, normal growth of rice seedlings is ensured, and the rice growth requirements are accurately met. When the method is used for rice planting, a seedling raising subsoil fertilizer carrying method is adopted, integration of rice transplanting and fertilization is achieved, and on the basis of ensuring high and stable yield of rice, the fertilizer application cost and the risk of nitrogen and phosphorus pollution emission in the rice field are reduced.

The invention relates to a preparation method of a high-elasticity composite buoyancy material with high compression resistance and high tensile strength, which comprises the following steps: 1, preparing raw materials: selecting rubber or synthetic resin as a base material, and selecting polyester synthetic fiber wires or meshes, hollow glass beads and compounding agents; step 2, mixing: adding the base material, the hollow glass beads and the compounding agent into mixing equipment according to a certain formula proportion to form a mixture; step 3, calendaring: calendaring the mixture through a calendaring machine to form a blank sandwiched with polyester fibers; 4, stacking is conducted, specifically, the blanks and the polyester synthetic fiber wires or meshes are stacked in a mold in a staggered mode according to the preset sequence and the preset layer number, and pre-pressing is conducted after stacking is completed; step 5, vulcanization molding: placing the mold in a hot press, and further vulcanizing and curing the mold; and 6, post-treatment is conducted, specifically, after the vulcanized flexible composite material plate is subjected to trimming and inspection procedures, the qualified flexible composite material plate is packaged.

The invention discloses an environment-friendly odorless sealing strip adhesive as well as preparation and application thereof, and the environment-friendly odorless sealing strip adhesive is prepared from the following components in parts by mass: 15 to 20 parts of polyacrylate resin, 10 to 15 parts of dammar resin, 5 to 10 parts of fir resin, 3 to 5 parts of hydrogenated terpene resin, 2 to 5 parts of tributyl citrate and 45 to 65 parts of n-decane. The preparation method comprises the following steps: uniformly mixing natural resin (dammar resin, fir resin and hydrogenated terpene resin), polymeric monomers (n-octyl acrylate, methyl methacrylate and hydroxyethyl acrylate) and an environment-friendly solvent (n-decane), and then polymerizing to obtain the environment-friendly adhesive. The synthetic resin (polyacrylate resin) and the natural resin are sufficiently and mutually dissolved in n-decane to form stable and uniform composite resin glue, so that the problems of health risk and environmental pollution caused by harmful solvents such as xylene in the traditional sealing glue are effectively avoided, and the characteristics of no toxicity, no odor and environmental protection of the product are realized; meanwhile, the stability and the bonding performance of the section sealing glue are improved, the matching performance of the optical transmittance and the refractive index of the section sealing glue is enhanced, and the section sealing glue has quick-drying performance and is suitable for medical pathological sections.

A battery module including banks connected in parallel or in series to each other, each of the banks including battery cells electrically connected in parallel to each other, a sensing tab configured to measure a voltage of each of the battery cells in each of the banks, and a high-voltage bus bar configured to make an electrical connection to another battery module. The high-voltage bus bar includes an insulating band including a synthetic resin that is an electrical nonconductor configured to electrically insulate the high-voltage bus bar from the sensing tab.

To provide a tool for securing an air discharging gap between the collar of a working wear with a fan and the neck of a worker.SOLUTION: There is provided a tool for securing an air discharging gap between a collar of a working wear with a fan and a neck of a worker, in which, when a flexible conduit 12, which is made of a synthetic resin and has rigidity and flexibility, and has air circulation holes 13, is hung on the neck of the worker wearing the working wear with the fan, the tool secures the air discharging gap for allowing air to pass between the collar of the working wear with the fan and the worker's neck, and discharges air toward the neck of the worker from the air circulation holes 13 of the flexible conduit 12 by operation of the fan of the working wear.SELECTED DRAWING: Figure 1

Provided are a roadbed material containing, without clumping, granular carbonated steelmaking slag and a raw material having carbon fixation ability; and a method for manufacturing the roadbed material.　In the roadbed material, the content of at least one of carbonated steelmaking slag, a wood material, a synthetic resin, or a natural fiber is 1-90 mass%.

Provided are a three-way valve for flow rate control and a temperature control device, which have improved sealing performance at a sealed portion at which a valve body is rotatably sealed against a fluid having a low temperature of about −85° C. as compared to a case without sealing means for sealing an end portion of the valve body on a side closer to drive means so that the end portion is rotatable with respect to a valve main body, the sealing means having a substantially U-shaped cross section and being made of a synthetic resin, and being urged in an opening direction by a spring member made of a metal. The three-way valve for flow rate control includes: a valve body having a cylindrical shape and having an opening, which is arranged in a freely rotatable manner in a valve seat of a valve main body, and simultaneously switches a first valve port from a closed state to an opened state and switches a second valve port from an opened state to a closed state; drive means for driving the valve body to rotate; and sealing means for sealing an end portion of the valve body on a side closer to the drive means so that the end portion is rotatable with respect to the valve main body, the sealing means having a substantially U-shaped cross section and being made of a synthetic resin, and being urged in an opening direction by a spring member made of a metal.

A circulating circuit member 1 forms a part of a circulating circuit through which a fluid flows. The circulating circuit member 1 includes a pipe 4; a to-be attached member that has a sleeve portion 3 made of synthetic resin to which the pipe 4 is rotationally connected; and a pin 6 that is inserted from the sleeve portion 3 to the pipe 4, in which a pin insertion hole 5 of the sleeve portion 3 through which the pin 6 is inserted is formed by a mold that is pulled out from an inside of the sleeve portion 3.

An overcap with a tube shape for a stick-type cosmetic container is provided. The stick-type cosmetic container includes a container body configured to store solid contents or liquid contents and the overcap coupled to the container body, in which the container body and the overcap are provided as a long stick type. The overcap is provided in the tube shape which includes a soft synthetic resin as a constituent material and of which a width is increased toward an upper portion that is sealed, and a coupling joint made of a hard synthetic resin or metal material is provided in an inner diameter of an open lower portion of the overcap to prevent shape deformation while being connected to the container body through a hanging method or screw coupling method.

Provided is a three-dimensional pattern card and a method of manufacturing the same. The method includes: (a) preparing a master mold in which a pattern of a three-dimensional shape is engraved on one surface; (b) fabricating a three-dimensional pattern module by forming a three-dimensional pattern on a surface of a transparent sheet made of a synthetic resin material using the master mold; (c) fabricating a rear card body module by sequentially laminating and bonding a first core sheet, an antenna inlay sheet, a second core sheet, and a rear protective sheet; (d) applying a UV adhesive to a surface of the first core sheet of the rear card body module; and (e) laminating the three-dimensional pattern module on the UV adhesive applied surface of the rear card body module and irradiating UV to cure the adhesive so as to bond the rear card body module and the three-dimensional pattern module.

A switching device (5) is a switching device that can be provided in a thermal management circuit and that can switch a flow path of a medium flowing through the thermal management circuit. The switching device (5) includes at least one spool (101 to 103), a case (20), and a seal material (500). A part of the flow path is formed in the case (20). The at least one spool includes a hollow spool (101) made of a synthetic resin and formed in a hollow shape. The hollow spool (101) has at least one opening (h10, h20). The seal material (500) is provided between an outer circumferential surface of the hollow spool (101) and the case (20).

The present invention relates to a welding machine for a synthetic resin and, more specifically, to a welding machine for a synthetic resin, including an entry friction roller which operates to appear above a worktable or disappear therebelow and is made of a rubber material, and a welding roller which descends to hold a fabric, the welding roller being provided with a frictional force with the entry friction roller in a process of rotation process thereof, so that a uniform welding work, such as that a fabric made of a rigid material is easily entered and discharged, is possible; and also including a discharge guide roller and a friction roller at a rear side of the worktable, the friction roller having a frictional force with the discharge guide roller and being made of a rubber material, the discharge guide roller and the friction roller pulling a fabric from the rear side in a process in which the fabric is discharged, to enable the fabric to be smoothly discharged.

A method for molding a connector boot over a connector of a wire harness comprises positioning the connector of the wire harness into a mold cavity of a mold. A resin mixture is de-aerated to provide a de-aerated resin mixture including a synthetic resin and a hardener. The de-aerated resin mixture is injected into the mold cavity to gradually fill the mold cavity from bottom to top. The injected de-aerated resin mixture is then allowed to harden to form the connector boot around the connector of the wire harness under isothermal conditions. Once cured, the connector boot is demolded.

To provide a surface fastener capable of stably ensuring an appropriate peel strength with respect to a loop member and capable of improving texture as compared with a conventional surface fastener. A surface fastener is made of a synthetic resin and includes: a base portion; and a plurality of engaging elements. Each of the engaging elements includes a stem portion, an engaging head portion, and at least one engaging portion protruding from an outer circumference portion of the engaging head portion. A total of the areas of the engaging head portions per 1 cm2 of the surface fastener is 10,000,000 μm2 or more when the surface fastener is viewed in plan view from above. The synthetic resin has a tensile modulus of 700 MPa or more and 2300 MPa or less.

The present invention relates to the technical field of hot stamping, and particularly relates to a tactile film for hot stamping an electrothermal aluminum and its production process. The tactile film for hot stamping an electrothermal aluminum includes a tactile film and an electrothermal aluminum hot stamped on the tactile film; a tactile layer is provided on the surface layer of the tactile film; the electrothermal aluminum includes a base film layer, a release layer, a color layer, an aluminized layer, and an adhesive layer arranged from top to bottom, and the electrothermal aluminum is transferred to the surface of the tactile layer by hot stamping; the release layer is coated with silicone resin; the color layer is coated with a mixture of synthetic resin and dye; the aluminized layer is high-purity aluminum; the adhesive layer is coated with thermoplastic resin. When hot stamping the electrothermal aluminum, this tactile film for hot stamping an electrothermal aluminum does not need to pre-treat the hot stamping area by applying a solvent or baking hot stamping method, and can directly hot stamp the electrothermal aluminum onto the surface of the tactile film, reducing the hot stamping process, avoiding the occurrence of damage to the surrounding area of the hot stamping area during pre-treatment, and improving the overall quality of the tactile film.

The invention discloses a flame-retardant low-VOCs aqueous adhesive and a preparation method thereof. The preparation method comprises the following steps: S1, preparing a pre-emulsion; S2, synthesizing a resin emulsion; S3, preparing a flame-retardant dispersion; the phosphate flame-retardant monomer participates in the copolymerization reaction of acrylate, and cooperates with hyperbranched ammonium polyphosphate and zinc borate to form a condensed phase and gas phase dual flame-retardant barrier; hydroxyl-containing phosphate is embedded into a solvent-free polyurethane curing agent system, so that aliphatic diisocyanate synchronously completes crosslinking, flame retardance and thickening under the action of an organic tin catalyst, and VOCs introduced by a traditional thickening agent are eliminated from the source; the final value of the NCO content is accurately controlled through a synchronous dropwise adding process and dynamic monitoring of the NCO content, so that the viscosity is stable, and sedimentation and layering are avoided; the long-standing contradiction of high flame retardance, namely high VOCs, and strong adhesion, namely weak constructability, in the field of waterborne adhesives is solved.

A double container 3 has an outer container 2 and an inner container 1 which is accommodated in said outer container 2 so as to be replaceable as a refill. The outer container 2 has a bottom wall 21, a side wall 22, and a cylindrical mouth part 24 that is positioned over the side wall 22. The inner container 1 has a bottom surface 11, a side surface part 12, and an upper end flange 15 that protrudes radially outward from the whole periphery of an upper end part of the side surface part 12. The inner container 1 is composed of a sheet material made of a synthetic resin. The upper end flange 15 of the inner container 1 is positioned on the upper end of the mouth part 24 of the outer container 2 in a state of the the double container 3 in which the inner container 1 is fitted in the outer container 2, and the outer periphery of at least the upper part of the side surface part 12 of the inner container 1 is polygonal in shape.

An electrolytic capacitor includes a capacitor element and a liquid component that contains a non-aqueous solvent. The capacitor element includes an anode foil having a dielectric layer on a surface thereof, a cathode foil, and a separator and a conductive polymer component that are interposed between the anode foil and the cathode foil. The separator contains synthetic resin fibers. The water concentration in the liquid component is 1000 ppm or more and 10000 ppm or less by mass.

The invention discloses a heat-resistant agent with a star-shaped structure, a preparation method and application of the heat-resistant agent in preparation of heat-resistant ABS resin, and belongs to the technical field of synthetic resin. The four-functional-group initiator is adopted to initiate polymerization of styrene, N-phenylmaleimide and the third monomer, the topological structure of the prepared heat-resistant agent is star-shaped, that is, the main chain of the prepared heat-resistant agent is equivalent to the branch chain in length, so that the heat resistance of the ABS resin is improved, the flowability of the ABS resin is guaranteed, and the service life of the ABS resin is prolonged. The rigidity-toughness balance of the ABS resin is optimized. Experimental results show that after the heat-resistant monomer N-phenylmaleimide is added, the heat resistance of the ABS resin is remarkably improved, the glass-transition temperature of the ABS resin is 180 DEG C, the tensile strength of the ABS resin is also remarkably improved, and the impact strength of the heat-resistant ABS resin after the four-functional-group initiator is used is larger than 150 J / m, so that the application requirements are met.