21 results about "Montan wax" patented technology

The invention discloses high-performance precision casting wax and a preparation method thereof. The casting wax is prepared from the following raw materials in parts by mass: 20 to 40 parts of paraffin, 0 to 20 parts of lignite wax, 0 to 20 parts of beewax, 0 to 10 parts of polyethylene wax, 5 to 10 parts of stearic acid, 20 to 40 parts of C5 petroleum resin, 10 to 20 parts of C9 petroleum resin, 10 to 20 parts of hydrogenated C9 petroleum resin, 0 to 10 parts of hydrogenated terpene resin, 0 to 40 parts of mannitol, 0 to 14 parts of polymethyl methacrylate, 0 to 5 parts of corn starch and 0 to 5 parts of cellulose acetate. The core innovation point of the invention is as follows: through the synergistic effect of the hydrogenated resin and the high-molecular polymer and in combination with the filling powder in a specific proportion, the thermal expansion coefficient (the shrinkage rate is less than or equal to 0.6%) and the ash content (less than or equal to 0.02%) of the wax material are remarkably reduced, and meanwhile, the bending strength (7-10MPa) and the surface hardness (46-55HD) are improved. The wax material is suitable for precision casting of thick, large and complex castings, solves the problems that the existing wax material is easy to deform, high in shrinkage rate and poor in thermal stability, and has high surface smoothness and dimensional precision.

The invention discloses modified precision casting wax as well as a preparation method and application thereof. The modified precision casting wax is prepared from the following raw materials and components in parts by mass: 17 to 25 parts of microcrystalline wax, 10 to 15 parts of paraffin, 5 to 10 parts of stearic acid, 2 to 4 parts of ethylene-vinyl acetate, 2 to 6 parts of lignite wax, 2 to 5 parts of Piccotex75 resin, 10 to 15 parts of terpene resin, 5 to 15 parts of D-mannitol, 5 to 15 parts of adipic acid, 8 to 15 parts of rosin glyceride, 1 to 3 parts of carnauba wax, 2 to 5 parts of candelilla wax, 1 to 3 parts of hydroxyethyl cellulose and 0 to 3 parts of starch. According to the modified precision casting wax disclosed by the invention, the performance of a wax mold is improved by compounding functional aids, so that the modified precision casting wax has high bending hardness and surface hardness, lower shrinkage rate and good dimensional stability, and can be widely applied to the field of high-precision casting.

To provide a release agent which has heat resistance at least equivalent to that of a coal-based wax such as a montan wax, and is excellent in mold releasability, and a resin composition.SOLUTION: A release agent contains a compound (I) obtained by reaction of a carboxy group of a composition (A) which contains 75 to 100 mass% of a compound (A') having 0 to 25 mass% of polyethylene and a saturated hydrocarbon chain having 24 or more average carbon numbers, having the one carboxy group, and having polydispersity Mz / Mn of 1.8 or less, and has polydispersity Mz / Mn of 1.8 or less, and a hydroxy group of a composition (B) which contains 75 to 100 mass% of a compound (B') having 0 to 25 mass% of polyethylene and a saturated hydrocarbon chain having 24 or more average carbon numbers, and having the one hydroxy group.SELECTED DRAWING: None

The application provides a filling wax mould material for titanium alloy precision casting and a preparation method thereof. The filling wax mould material comprises the following components in parts by weight: rosin 4-6 parts, low-density polyethylene 4-6 parts, 58# paraffin 48-50 parts, stearic acid 30-32 parts, lignite wax 2-4 parts, epoxy resin 4-8 parts, and filler 0.5-1.5 parts. The filler is hexagonal boron nitride. The preparation method of the filling wax mould material for titanium alloy precision casting comprises the following steps: step 1, preparing esterified rosin; step 2, obtaining mixture A; step 3, obtaining mixture B; step 4, obtaining mixture C; step 5, obtaining mixture D; step 6, obtaining mixture E; step 7, heating and dispersing and stirring mixture E for 4 hours; step 8, obtaining mixture F; and step 9, continuing to heat and stir mixture F at 90 DEG C for 3 hours, then stopping heating, and granulating when the melt temperature cools to 80-85 DEG C, thereby obtaining the filling wax mould material for precision casting.

The production equipment comprises an extractor, the extractor comprises an extraction tank, the extraction tank is divided into a plurality of extraction chambers, and drag chain groups are arranged in the extraction chambers respectively; the drag chain group comprises a first drag chain section, a soaking section and a second drag chain section; an isolation plate is arranged at the bottom of the extraction tank, the isolation plate is arranged below the drag chain group of each extraction chamber, and a through hole penetrating up and down is formed in the isolation plate; the bottom of the extraction tank is provided with a first storage tank and a second storage tank, the first storage tank and the second storage tank are arranged below the isolation plate, the first drag chain section is correspondingly provided with a first spraying device, and the first storage tank is correspondingly arranged below the first drag chain section; the second drag chain section is correspondingly provided with a second spraying device, the second spraying device is used for being communicated with the solvent inlet, the second storage tank is arranged below the second drag chain section, and the soaking section is soaked in the second storage tank; countercurrent contact between the extraction agent and lignite particles is achieved, and lignite wax in the lignite particles is fully extracted.

To provide an ink composition for inkjet printing that allows provision of printed matter having superior mechanical stability and superior scratch resistance.SOLUTION: An ink composition for a recording head having an ink circulation mechanism comprises a pigment, montan wax, and water.SELECTED DRAWING: None

The invention relates to the technical field of water treatment, in particular to a porous hydrophilic biological wax slow-release carbon source and a preparation method and application thereof. The porous hydrophilic biological wax slow-release carbon source is prepared from the following raw materials in parts by mass: 20-40 parts of beewax, 20-40 parts of lignite wax and 20-80 parts of a pore-forming agent solution. The porous hydrophilic biological wax slow-release carbon source and the preparation method thereof provided by the invention have remarkable technical advantages in the aspects of increasing the adhesion amount of microorganisms, enhancing the adsorption capacity of pollutants, realizing uniform distribution of pores, continuously releasing nutrients and the like, and have an important application value in eutrophication treatment of small and medium-sized water bodies.

The present invention provides a stone block coating adhesive and a preparation method thereof. The stone block coating adhesive comprises a component A and a component B. Component A comprises a vinyl ester resin, a hardener, and a wetting and penetrating agent; component B comprises an initiator; and the hardener comprises carnauba wax, polyethylene wax, and montan wax in a mass ratio of 10-40:20-40:20-50, with the mass of the hardener accounting for 1-8% of the mass of the vinyl ester resin. By selecting the vinyl ester resin and adding a specific hardener, the present invention can avoid black lines on the cut surface of the stone during construction, and can also impart greater hardness and mechanical strength to the adhesive film, ensuring the brightness of the stone and making the stone block easier to cut and shape.

A filler mixture for producing a hot melt mass is provided. The filler mixture comprises a polymer component from the group consisting of vinyl acetate copolymer (VAc copolymer), ethene-ethyl acrylate copolymer (E / EA), ethene-vinyl acetate copolymer (E / VA), ethyl methacrylate (EMA), ethylene butyl acrylate (EBA), ethylene acrylic acid (EAA), a wax component from the group consisting of polyolefin wax, amide wax, montan wax, hydrocarbon wax, E / VA wax, metallocene wax, a resin component consisting of hydrocarbon resin, and a modifier component from the group consisting of color pigments, fibers, and lightweight filler. The wax component is composed of a wax mixture comprising hydrocarbon wax, polyethylene wax modified with maleic anhydride, polypropylene wax modified with maleic anhydride, and propylene-ethylene copolymer wax. Also provided is, among other things:a method for producing a fixing area in a lightweight construction element and a lightweight construction element with a fixing area.

The present invention relates to the field of lignite wax preparation and discloses a multi-component extractant, its application, and a method for extracting lignite resin and lignite wax from lignite. The multi-component extractant is extractant I containing a first base solvent, additive A, and additive B, or extractant II containing a second base solvent, water, additive A, additive B, and additive C. Using the multi-component extractant of the present invention to extract lignite resin and lignite wax from lignite can reduce the amount of organic extractant used and improve the extraction efficiency of lignite resin and lignite wax from lignite with different water contents, especially higher water contents, thereby obtaining high-quality resin and lignite wax.

The invention discloses a preparation method and application of investment casting wax. The investment casting wax is prepared from the following raw materials in parts by mass: 15 to 25 parts of paraffin, 10 to 20 parts of lignite wax, 15 to 20 parts of C5 petroleum resin, 2 to 10 parts of beewax, 2 to 5 parts of polyethylene wax, 0 to 5 parts of stearic acid, 0 to 5 parts of ethylene-vinyl acetate copolymer, 5 to 15 parts of C9 petroleum resin, 5 to 15 parts of hydrogenated C9 petroleum resin, 5 to 15 parts of hydrogenated terpene resin, 0 to 8 parts of polymethyl methacrylate and 5 to 15 parts of D-mannitol. The investment casting pattern material disclosed by the invention is relatively high in bending strength and surface hardness, high in surface smoothness and good in dimensional stability, and can be widely applied to the field of high-precision casting.

The invention discloses a high-toughness polyethylene film and a preparation method thereof, and relates to the technical field of plastic film preparation. The invention discloses a high-toughness polyethylene film. The high-density polyethylene composite material is prepared from the following raw materials in parts by weight: 62 to 70 parts of modified linear low-density polyethylene, 12 to 15 parts of high-density polyethylene, 10 to 12 parts of ethylene-octylene copolymer, 5 to 7 parts of ethylene-vinyl acetate copolymer, 0.2 to 0.3 part of antioxidant 1010, 0.15 to 0.2 part of antioxidant 168, 0.3 to 0.4 part of ultraviolet light absorber UV-531, 2 to 3 parts of modified nano silicon dioxide, 0.4 to 0.5 part of calcium stearate, 0.3 to 0.4 part of nucleating agent NA-11 and 0.7 to 0.9 part of lignite wax. And 4 to 6 parts of polypropylene porous master batch containing di-tert-amyl peroxide. The raw materials of the high-toughness polyethylene film are reasonably proportioned, and the toughness is remarkably improved through the synergistic effect of a gradient acylhydrazone bond cross-linked structure of the modified linear low-density polyethylene and a core-shell-microsphere structure of the modified nano silicon dioxide; and mechanical-ultrasonic double-field synergistic mixing, gradient cooling and multi-section annealing processes are adopted in preparation, so that the forming quality is guaranteed.

The invention discloses an anti-ultraviolet polypropylene cable tie, which is made by injection molding a polypropylene composition; the polypropylene composition comprises: a polypropylene material, a composite ultraviolet absorber, a toughening agent, a lubricant, a nucleating agent and an antioxidant; the composite ultraviolet absorber is at least two selected from the group consisting of benzophenone ultraviolet absorbers, benzotriazole ultraviolet absorbers and amino ultraviolet absorbers; the lubricant is composed of montan wax, or montan wax, an ester lubricant G16, and one or more selected from the group consisting of amide lubricants, hydrocarbon lubricants and C8-30 alcohol lubricants. The invention achieves excellent anti-ultraviolet performance without reducing the transparency of the cable tie, improves the fluidity of the polypropylene composition relative to a mold, enables the polypropylene composition to quickly fill the mold within a limited space and time, and is conducive to the production of thin-walled polypropylene cable ties with a high aspect ratio.

The utility model belongs to a device for producing humic acid by using lignite. Comprising a lignite bin, the lignite bin is connected with a lignite wax extraction unit through a rod mill, a liquid phase of the lignite wax extraction unit is connected with a lignite wax purification unit, and a solid phase of the lignite wax extraction unit is connected with a humic acid production unit. The lignite wax purification unit, the humic acid production unit and the lignite wax extraction unit form a leaching agent recycling unit; the tail end of the lignite wax purification unit is connected with a lignite wax finished product tank; the tail end of the humic acid production unit is connected with a humic acid finished product tank; the method has the characteristics that the design is reasonable, the content of lignite wax in a humic acid product is effectively reduced, related water-soluble fertilizer pipelines are prevented from being blocked, and water-soluble fertilizer compounding is conveniently realized.

The system comprises an extraction unit, an activation reaction device, an alkali dissolution device and an acidification device which are connected in sequence, a first circulation pipeline is further arranged between the acidification device and the top of the activation reaction device, and the circulation pipeline is arranged to convey a nitric acid solution to the activation reaction device; the extraction unit comprises an extraction liquid separation device, a second recycling pipeline is arranged between the extraction liquid separation device and the activation reaction device, and first extraction liquid obtained by the extraction liquid separation device is conveyed to the activation reaction device through the second recycling pipeline. According to the system for co-producing lignite wax, fulvic acid and humic acid, nitric acid and an extraction solvent in the acidification device are pumped to the activation reaction device, so that cyclic utilization of nitric acid is realized, the process cost is reduced, and the yield of fulvic acid and humic acid is improved.

The invention discloses a high-temperature-resistant and cooling-liquid-resistant flexible pipeline PA612 material and a preparation method thereof, and belongs to the technical field of high polymer materials. Comprising the following steps: step 1, adding PA612, a blocking agent, a hydrolysis-resistant agent, a hindered phenol antioxidant 1790, a phosphite antioxidant 168, lignite wax, nylon color masterbatch, DCP-40, powder TAIC and a flame retardant into a high-speed mixer, and mixing for 5-8 minutes to obtain a premix; and 2, carrying out melt blending, extrusion and granulation on the premix, a maleic anhydride grafted elastomer and an N-butyl benzene ring amide plasticizer, drying, and carrying out injection molding to obtain the PA612 material. According to the high-temperature-resistant and cooling-liquid-resistant flexible pipeline PA612 material provided by the invention, through component design and a preparation process, synergistic improvement of multiple properties is realized.

The invention discloses precision casting wax as well as a preparation method and application thereof. The precision casting wax is prepared from the following raw materials in parts by mass: 20 to 30 parts of microcrystalline wax, 5 to 10 parts of paraffin, 10 to 16 parts of lignite wax, 0 to 5 parts of carnauba wax, 7 to 15 parts of Piccotex75 resin, 5 to 12 parts of terpene resin, 5 to 15 parts of rosin glyceride, 2 to 10 parts of ethylene-vinyl acetate, 4 to 8 parts of stearic acid, 3 to 10 parts of D-mannitol, 5 to 10 parts of adipic acid and 0 to 5 parts of polymethyl methacrylate. According to the precision casting wax disclosed by the invention, the performance of a wax mold is improved by compounding multiple fillers, so that the precision casting wax has high bending hardness and surface hardness, relatively low shrinkage rate and good dimensional stability, and can be widely applied to the field of high-precision casting.

The invention discloses a preparation method and application of modified investment casting wax. The modified casting wax is prepared from the following raw materials and components in parts by mass: 10 to 25 parts of paraffin, 5 to 10 parts of lignite wax, 10 to 20 parts of C5 petroleum resin, 0 to 5 parts of beewax, 2 to 6 parts of polyethylene wax, 0 to 5 parts of stearic acid, 1 to 3 parts of ethylene-vinyl acetate copolymer, 5 to 10 parts of C9 petroleum resin, 5 to 10 parts of hydrogenated C9 petroleum resin, 5 to 10 parts of hydrogenated terpene resin, 5 to 10 parts of D-mannitol, 0 to 5 parts of polymethyl methacrylate, 5 to 15 parts of adipic acid and 1 to 5 parts of hydrogenated rosin glyceride. 5-10 parts of microcrystalline wax, 0-2 parts of starch, 0-4 parts of carnauba wax and 0-4 parts of candelilla wax. The modified casting wax material has good comprehensive performance, the surface of the wax material is flat and smooth, demolding is easy, the low linear shrinkage rate is achieved, and the modified casting wax material is especially suitable for precise casting of thick, large and complex castings.

A grease composition includes a urea-based thickener; a synthetic hydrocarbon oil and / or a mineral oil as a base oil, a kinematic viscosity of the base oil at 100° C. being 4 to 40 mm2 / s; and 1 to 10% by mass of a montan wax, 1 to 5% by mass of a molybdenum-based extreme pressure agent, and 1 to 5% by mass of a sulfonate-based compound as additives, and the grease composition has a consistency of 310 to 430. The grease composition is for use in lubrication between a metal member and a metal member and lubrication between a metal member and a resin member.

A grease composition includes a urea-based thickener; a synthetic hydrocarbon oil and / or a mineral oil as a base oil, a kinematic viscosity of the base oil at 100° C. being 4 to 40 mm2 / s; and 1 to 10% by mass of a montan wax, 1 to 5% by mass of a molybdenum-based extreme pressure agent, and 1 to 5% by mass of a sulfonate-based compound as additives, and the grease composition has a consistency of 310 to 430. The grease composition is for use in lubrication between a metal member and a metal member and lubrication between a metal member and a resin member.