94 results about "Polyurethane" patented technology

An improved breast form, constructed according to the principles of this invention, comprises a flexible chamber formed from a pair of polyurethane sheets that are sealed together along a perimeter edge of the chamber. A volume of silicone gel composition is sealably disposed within the flexible chamber. A fabric material is disposed over and permanently joined to a surface portion of each of the polyurethane sheets. The fabric material forms an exterior surface of the breast form, and is made from a four-way stretchable fabric.

The invention relates to a solid-type filter stick formed by granular assembling and a preparation method of the solid-type filter stick. The filter stick is prepared by the assembling forming of solid granules and an adhesion agent, wherein the solid granules are one or more of natural plant granules, natural mineral granules and artificial adsorption granules. The adhesive agent is one or more of ethylene-vinyl acetate copolymer, polyethylene hot melt adhesive, epoxy resin, polyester, polyether, polyurethane, dextrin, polyvinyl alcohol, polycaprolactone, gelatin and Arabic gum. The mass ratio of the solid granules and the adhesive agent is 0.5-200:1. The filter stick is prepared by the bonding forming after the solid granules and the adhesive agent are mixed, is loosened, breathable and stable in structure, and can be used as a unitary filter tip or can be combined with other filtering materials to form a multi-component filter tip. The preparation method is simple in process and high in production stability. The filter stick is novel in appearance and structure, stable in structure, excellent in incision performance, wide in material selection range, good in filtering effect and capable of effectively improving the smoking quality of cigarettes.

The invention relates to the technical field of flexible circuit boards, in particular to a halogen-free resin composition. The halogen-free resin composition comprises, by weight, 40-60 parts of polyester-type polyurethane resin, 15-25 parts of polyfunctional epoxy resin, 10-20 parts of phosphorus-containing phenolic resin, 15-25 parts of phosphorus-containing flame retardant and a proper quantity of organic solvent. The polyester-type polyurethane resin contains carboxyl, the acid value is 35 KOHmg/g, and the number-average molecular weight is 10,000-50,000. The polyester-type polyurethane resin containing the carboxyl can be reacted with biphenyl type epoxy resin, and the biphenyl type epoxy resin can be reacted with the phosphorus-containing phenolic resin so that an interpenetrating polymer network structure can be formed. In this way, a cured product has excellent ionic migration resistance and has high flexibility and high heat resistance. The invention further relates to a cover film prepared from the halogen-free resin composition, the excellent ionic migration resistance is achieved, and dendritic crystals can be avoided during ionic migration resistance testing.

A manufacturing method of an insole is characterized in that: the method comprising the following steps: selecting and preparing raw material, spraying a parting agent on the inner surface of an upper die body (21), padding insole surface cloth (12) on the inner surface of a lower die body (22), then closing a die (2), vacuumizing the die through an extractor vent (23) to cause the insole surface cloth (12) to be smoothly and firmly attached to the inner surface of the lower die body (22); blending a component a and a component b, injecting the mixture into the die (2) from a die sprue (24) and staying for 2-30 minutes; taking out the insole (1) with rough edges which combines the insole surface cloth (12) and polyurethane; deburring to obtain the finished product. The manufacturing method of the invention has the advantages that: the polyurethane surface at the reverse side of the insole is a non-membrane surface, when in use, the insole can be attached to the sole surface, thus solving the problem of easy sliding of the insole due to the change of an exerting point of the sole when people walk. In addition, when people stamp on the insole, a soft cushion structure of the insole produced by the method can lead to better shakeproof effect, causes people to feel soft and comfortable, and has the advantages of good intensity and convenient manufacturing.

The invention provides an organic and inorganic composite aluminium alloy non-chromium passivation treatment fluid, pertains to the field of metal materials, relates to a problem of treatment of metal material surface, and in particular to a passivation treatment fluid which can improve the corrosion resistance of the aluminium alloy surface and does not contain hexavalent chromium. The passivation treatment fluid is characterized in that organic resin such as waterborne acrylic resin, polyurethane or the like is adopted as a film forming agent, and a ferrate inorganic passivating agent, a stabilizing agent and a curing agent are added to prepare an organic and inorganic composite passivation solution; the concentration weight percentages of the components in the passivation solution are as follows: 10 to 25 percent of organic resin film forming agent of waterborne acrylic resin or polyurethane, 0.01 to 2 percent of ferrate inorganic passivating agent, 0.05 to 5 percent of sodium silicate passivation solution stabilizing agent, and 0 to 5 percent of curing agent; phosphoric acid is used for adjusting the pH value to 4-6; and the balance is deionized water. The method of roll coating, dip coating or the like is adopted for evenly coating the passivation solution on the surface of the aluminium alloy, then non-chromium passivation film with good corrosion resistance is obtained after curing at the temperature above 80 DEG C, and the passivation solution meets the requirement of environment protection.

The invention relates to a bistable composite film of polymer dispersed liquid crystals and a manufacturing method thereof. The composite film is composed of two pieces of flexible transparent conducting film and a layer of polymer dispersed liquid crystals, wherein, the two pieces of flexible transparent conducting film are etched with a coplanar conversion electrode; the layer of polymer dispersed liquid crystals is highly active polyurethane acrylic ester; the liquid crystals are nematic phase liquid crystal molecules with large birefringence. When imposing a coplanar horizontal electric field, the bistable composite film of the polymer dispersed liquid crystals is in closed and scattering state and still keeps the scattering state after the electric field is eliminated; when imposing a coplanar comb-shaped electrode short-circuit on an opposite electric field, the bistable composite film of the polymer dispersed liquid crystals is in open and transparent state and still keeps the transparent state after the electric field is eliminated. The bistable composite film of the polymer dispersed liquid crystals has the manufacturing method that: after being mixed, the highly active polymer and the nematic phase liquid crystals with the large birefringence are separated to form the structure that the polymer wraps crystal liquid droplets. The invention uses the simple design proposal and depends on changing the direction of the electric field to realize zero field stability of the polymer dispersed liquid crystals so as to further acquire an electronic-paper technology with better energy conservation; or the bistable composite film of polymer dispersed liquid crystals can be specially applied to the fields of building decoration and jewelry counters and so on as a dimming function film which is clipped in glass.

The present invention relates to polyurethane blending hollow fiber membrane and its preparation. The membrane has the micro-porous structure of polymer interface and comprises the mass percent of 55 to 75% polyurethane and 25 to 45% dispersive components, wherein the hard block and elastic block of the polyurethane is of the mass proportion of 1:2 and the dispersive components are polyolefine polymers, comprising polyvinylidene fluoride and polyacrylonitrile. The preparation adopts melt spinning-pore tension method using the said hollow fiber membrane mass percent at the melt spinning temperature of 170 to 180 degree, fixed-length heat shaping temperature of 50 to 60 degree and spinneret tension times of 2 to 4 times. The said hollow fiber membrane has compact structure, good support function, good separation system sensitivity and good memory. The said preparation is simple without any solvent or additive at relatively low cost and has no environmental pollution, suitable for modern green industrial production.

The invention relates to a novel hydraulic bulging process for metal tubular parts. Rubber or a polyurethane core is used to realize the hydraulic bulging of the tubular parts. The hollow core is in a hollow baggy shape; a metal rod for supporting the core is arranged in the core; the metal rod plays a role in enabling the core to insert into and draw out of a metal tube freely; according to different bulging parts, the metal rod is manufactured to be elastic or rigid; the shape and length of the elastic metal rod can be changed with the deformation of the metal tube; one end of the core is connected with a hydraulic supercharger, and bulging liquid is injected into the core by the supercharger, so that the metal tube is formed; both ends of the metal tube are provided with oil cylinders for pushing the metal tube and the core, and both ends of the core are stressed by the oil cylinders to ensure that both ends of the core are not broken; and the oil cylinders have the other function of pushing the metal tube to replenish metal required by deformation. The novel hydraulic bulging process can be used for hydraulic bulging of automobile axle housings and spiral corrugated tubes.

The invention discloses a method for fracturing a coal seam by employing high-pressure gas. The method comprises the following steps: (1) tipsily drilling from a lower floor roadway of the coal seam to an upper coal seam; (2) inserting three pipes into a drill hole, and injecting polyurethane which is 20-50cm in thickness into the drill hole; (3) injecting cement mortar into the drill hole from a first grouting pipe, and shutting off a first which is arranged at the rear end of the first grouting pipe until the cement mortar overflows from a second grouting pipe; (4) injecting plugging mucilage glue containing particulate matters into the drill hole by virtue of the second grouting pipe after 12-24 hours; (5) injecting a high-pressure gas of which the pressure is 30-60MPa into the drill hole through a fracturing extraction pipe. According to the method disclosed by the invention, the plugging mucilage glue containing particulate matters is pressed into a pore fracture of a rock section under the effect of air pressure; the high-pressure gas is plugged by virtue of the mucilage glue; the problem of air leakage of the high-pressure gas in the coal seam fracturing process is effectively solved; the gas pressure of the fractured coal seam reaches the cracking pressure of the coal seam.

The invention relates to an ink resin composite used for plastic gravure printing and a preparation method thereof. The ink prepared from the ink resin composite is suitable for the non-polar substrates biaxially oriented polypropylene laminated polyethylene (BOPP) and polyethylene (PE) and the polar substrate polyethylene terephthalate (PET). The preparation method of the ink resin composite is as follows: the in-situ polymerization blending method is adopted to introduce alcohol-soluble polyurethane resin in a reaction system of the ink resin composite. The ink resin composite comprises the following components by weight percent: 30-50% of acetic ether, 8-25.5% of acrylate polymer, 8-25% of vinyl acetate polymer, 2.2-4.5% of styrene polymer, 1.5-2.5% of active functional polymer, 0.5-40% of alcohol-soluble polyurethane resin, 0.1-0.6% of initiator and 6-10% of alcohol diluent. The ink resin composite of the invention has simple preparation method, is green and environmentally friendly and has wide application prospect in the gravure printing ink.

The invention relates to the field of organic high-molecular compounds. In order to solve the problem of deficiency in long residual action and environment friendliness in the existing oil-based fluorine-containing low-surface-energy anti-doodling paint, the invention provides a water-based anti-doodling paint and a preparation method thereof. The preparation method comprises the following steps: adding a pigment, a filler and a dispersing agent into a toning cylinder, mixing, adding into a grinder, and grinding until the fineness is less than 20 mu m to obtain a color paste; and adding deionized water, the color paste, a fluorine-silicon-modified polyurethane core-shell emulsion, a preservative and a mildew preventive into a dispersion cylinder, mixing, sequentially adding a film forming assistant, a defoaming agent a thickener, mixing, and discharging to obtain the water-based anti-doodling paint. The film formed by the paint has the characteristics of excellent weather resistance, excellent ultraviolet resistance, excellent wear resistance, low surface energy, excellent pollution resistance, excellent doodling resistance, low VOC (volatile organic compound) emission, environment friendliness and no toxicity.

The invention provides a ceramic floor tile with diatom mud and a method for manufacturing the ceramic floor tile. The ceramic floor tile comprises a base layer, a surface layer and an adhesion layer. The adhesion layer is arranged between the base layer and the surface layer, and the base layer is made of the diatom mud, feldspar, kaolin, quartz, clay, porcelain clay, moire stone, marble, broken iron, polystyrene and polyacrylate; the surface layer is made of the diatom mud, Kunshan stone, carborundum disc stone, colorants, pebble, glass cloth, plastic particles, polyurethane, ethylene-ethylic acid ethylene copolymers, silicon dioxide and aluminum oxide. The ceramic floor tile and the method have the advantages that the ceramic floor tile is made of nontoxic and pollution-free raw materials, and the diatom mud which is a main material is easy to obtain, is natural and pollution-free and has diversified sterilization, disinfection and waterproof merits; the ceramic floor tile is made of the easily available materials, processing and manufacturing processes are simple, and the ceramic floor tile manufactured by the aid of the method is high in smoothness and quality.

The invention belongs to the field of anticorrosive paint, and particularly relates to a preparation method of an attapulgite-carbon nitride-polyaniline composite material and anticorrosive paint containing the composite material.The anticorrosive paint is prepared through the steps that one-dimensional attapulgite and two-dimensional graphite-phase carbon nitride are taken as a composite nuclear body material, aniline is polymerized on the surface of the composite nuclear body material to prepare attapulgite-carbon nitride-polyaniline composite anticorrosive packing, and then the attapulgite-carbon nitride-polyaniline composite anticorrosive packing is mixed with polyurethane, a coloring pigment, packing, a dispersing agent, a flatting agent, a defoaming agent and water to prepare the anticorrosive paint.The attapulgite-carbon nitride-polyaniline composite material is applied to the anticorrosive paint and has the multiple effects of preventing electrochemical corrosion and physical corrosion, enhancing the mechanical performance of a coating and the like.

In the invention, the wet hardening polyurethane or hydrophilic wet hardening polyurethane is utilized as the bonding layer. With rubberizing method, the involucra layer of the polyurethane or the porous macromolecule involucra layer is adhibited on the air permeability basis material layer. The involucra layer of the polyurethane possesses the hydrophilic bond segment. Since the bonding procedure does not need of the solvent in the invention, the pollution to air is reduced greatly. Also the step for drying the solvent is eliminated so as to speed up the production and lower the cost. Since the product possesses the air permeability, the added value of the product is increased greatly.

The invention provides an infrared stealth textile coating fabric which comprises a printing layer, a surface layer, a thermal-insulating layer, a bonding layer and a base cloth layer which are laminated sequentially, wherein the printing layer comprises one-component polyurethane A, a solvent A, a dilution A, infrared reflection color paste, white paste and a defoaming agent A; the surface layer comprises one-component polyurethane B, a solvent B, a dilution B, aluminum oxide or iron oxide, a defoaming agent B and a flatting agent B; the thermal-insulating layer comprises two-component polyurethane C, a solvent C, a dilution C, aluminum powder, a foaming agent, a cross-linking agent C and a cross-linking accelerator C; the base cloth layer is nylon or dacron. According to the fabric provided by the invention, defects of the prior art are overcome, the fabric has the softness of textiles, can prevent rain and corrosion, can be used both on sunny days and slushy days, and has stealth and warmth retention effects.

The invention relates to a double-component epoxy zinc-enriched primer and the making method thereof, used in anticorrosive engineering of steel constructions, such as pipelines, shop equipment, ships, bridges and storage tanks, comprising: adding mixed solvent of dimethylbenzene and normal butanol in epoxy resin, then adding in surface active modified polyurethane, gamma-glycidol trimethoxy silane, silicon oil and zinc powder, and mixing uniformly, grinding and then adding in polyurethane wax and blending uniformly into solution A; composing solution B by polyurethane and dimethylbenzene; and it is mixed of solutions A and B as used, where the content of zinc powder in the coating is above 80%, and it has excellent anticorrosive performance, convenient to construct.

The invention discloses a formula and a production method of a varnish, especially a varnish applied on objects used outdoors. With the varnish, the objects can be prevented from discoloration caused by sunlight ultraviolet irradiation. The invention aims at providing the anti-violet varnish preventing bottom-layer discoloration, and a preparation method thereof. With the varnish, bottom-layer color of a coated object can maintain unchanged after the object is irradiated by ultraviolet outdoors for a long time. According to the invention, main film-forming substances comprise silicone-modified acrylic resin in cooperation with an aliphatic polyurethane curing agent, such that a system is provided with excellent weatherability and chemical resistance. Under dual effects of a light stabilizer and a nano additive, a varnish film can effectively absorb ultraviolet with different wavelengths for a long time, and a bottom material can be prevented from discoloration caused by ultraviolet irradiation. The varnish is widely applied on outdoor objects such as buildings and ornamental objects in parks, squares, and the like.

The invention discloses water-based environment-friendly color-changing nail polish which comprises the following components: 40.0-50.0 parts by weight of water-based aliphatic polyurethane, 35.0-45.0parts by weight of a water-based aliphatic polyurethane acrylic acid copolymer, 3.0 to 6.0 parts by weight of a reversible temperature-sensitive color-changing material, 3.0 to 6.0 parts by weight ofa reversible photo-sensitive color-changing material, 0-2.0 parts of a pigment, 0.1-0.5 part of a wetting agent, 1.0-2.0 parts by weight of a thickening agent, 0.5-1.0 part of an adhesion promoter, 0.5-1.0 part of a preservative, 3.0-5.0 parts of a coalescing agent, 0-2.0 parts of other additives and the balance of deionized water. The reversible color-changing powder and other components are lowin odor and harmless to human health, environment-friendly, strong in adhesive force and long in retention time on nails, and can be used for blending various colors, and different colors can be changed along with different temperatures and different intensity of light, and the reversible temperature-sensitive color-changing material and the photo-sensitive color-changing material are good in stability, not easy to fade, and capable of maintaining a bright color for a long time.

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.

The invention discloses a fireproof anti-abrasion rubber shoe sole material and a preparation method thereof. The prepared fireproof anti-abrasion rubber shoe sole material is composed of, by weight,acrylonitrile-butadiene- styrene copolymer, epichlorohydrin rubber, polyacrylate rubber, polyurethane rubber, PVDF resin, white mica, a silane coupling agent, absolute ethyl alcohol, nano zinc oxide,magnesium stearate, palm oil and a foaming agent. According to the fireproof anti-abrasion rubber shoe sole material, all the raw materials are promoted mutually, by modifying the white mica, the anti-abrasion performance of a fireproof anti-abrasion rubber shoe sole is further improved, and the prepared fireproof anti-abrasion rubber shoe sole material has prominent mechanical properties; the fireproof anti-abrasion rubber shoe sole material has high elasticity, prevents slipping, is resistant to abrasion and good in oxidation resistance, and meanwhile has the advantages of being superior infireproof performance, safe, environmentally friendly and comfortable to wear.

The invention discloses heat-resistant modified asphalt, which is prepared from the following raw materials in parts by weight: 140-160 parts of asphalt, 12-16 parts of furan resin, 3-7 parts of dioctyl phthalate, 1-3 parts of sugar alcohol, 2-5 parts of stearamide, 0.8-1.6 parts of mica powder, 0.5-1.2 parts of manufactured sand, 14-16 parts of silicone oil, 3-6 parts of a silane coupling agent, 1-5 parts of an anti-aging agent and 2-6 parts of heat-resistant additives. According to the heat-resistant modified asphalt disclosed by the invention, the performance of the asphalt under a high-temperature condition is improved due to addition of the heat-resistant additive; a mixture of sodium silicate, polyurethane, titanium dioxide and phenolic resin are taken as the heat-resistant additives; the heat resistance is good; the strength of the asphalt can be improved; the viscosity and the ageing resistance of the asphalt are improved due to addition of furan resin, dioctyl phthalate, sugar alcohol, stearamide, mica powder, the manufactured sand, silicone oil, silane coupling agent and the anti-aging agent; and the use of the asphalt under the high-temperature condition is met.

The invention discloses UV (ultraviolet)-highly-clean curtaining finish, which comprises the components by weight percentage as follows: 35-45% of 100% UV resin, 0.3-0.5% of defoamer, 1-2% of dispersant, 4-7% of initiator, 0.2-0.5% of flatting agent, 0.5-1% of antireflection agent and the balance of monomer. The 100% UV resin is trifunctional polyurethane acrylate resin or difunctional epoxyacrylate resin or a mixture of the trifunctional polyurethane acrylate resin and the difunctional epoxyacrylate resin. The monomer is acrylics, modified acrylics or mixtures of the acrylics and the modified acrylics. The antireflection agent is an alkylammonium salt and a special radical modified polysiloxane copolymer solution. The UV-highly-clean curtaining finish is high in clearness, and good in transparency, and has high brightness and smoothness and strong stereoscopic sensation, and a curtain is fully transparent. The paint film structure formed is good in flexibility and scratching resistance, and applicable for wood products such as wood furniture and wood floors.