19 results about "Paraffin wax" patented technology

A pressure-sensitive adhesive product contains a substrate having formed on at least one surface thereof a pressure-sensitive adhesive layer, wherein the substrate is formed from a styrene-based resin composition and the pressure-sensitive adhesive layer is formed from an acrylic pressure-sensitive adhesive containing an acrylic polymer, a liquid paraffin, and a rosin-based tackifying resin. In the acrylic pressure-sensitive adhesive, the ratio of the liquid paraffin is preferably 6 to 50 parts by weight based on 100 parts by weight of the acrylic polymer and the ratio of the rosin-based tackifying resin is preferably 1 to 30 parts by weight based on 100 parts by weight of the acrylic polymer. The liquid paraffin may have a number-average molecular weight of 300 to 500 and may have a dynamic viscosity at 37.8° C. of 6 to 80 mm²/second.

The invention provides a wax-based binder for a compacting process in powder metallurgy as well as a preparation method and an application thereof. The binder consists of the following components by mass percent: 60 to 80 percent of solid paraffin, 3 to 10 percent of liquid paraffin, 1 to 10 percent of naphthalene, 2 to 9 percent of polyethylene vinyl acetate, 4 to 15 percent of polyolefin and 1 to 10 percent of stearic acid. The components of the binder are good in compatibility, the rheological property is good, the solvent degreasing rate is high, the retraction property is moderate, the degreasing blank is few in flaws, and the conformality is good; the binder also has the characteristics of cleanliness, low residue, little pollution and the like.

The invention discloses a method for printing double smooth surfaces at one time and a matting agent for printing ink. The matting agent is prepared from the following raw materials in part by weight: 90 to 95 parts of polyethylene paraffin scattered in a fluffy state, 2 to 4 parts of hydrogenated castor oil and 0.4 to 1 part of polyacrylamide. The preparation method comprises the following step of uniformly mixing the three substances in a high speed mixer. The method for printing double smooth surfaces at one time comprises the following steps: uniformly mixing gravure ink and the matting agent in a ratio of 1:(2-4); printing matted patterns on parts of a base material requiring a matting effect through gravure equipment by using the mixed matting gravure ink; and printing bright patterns on parts of the base material requiring a bright effect by using gravure ink without the matting agent, or reversing the sequence to achieve the same effect.

Disclosed is a dripping pills of six ingredients with Rehmanniae, which is prepared from dried rehmannia root, cornus officinalis, rhizoma dioscoreae, bark of peony root, Poria cocos, alisol as raw material as well as base material through the following steps, (1) distilling bark of peony root with water to extract volatile oil, (2) extracting cornus officinalis with 70% ethanol, concentrating to obtain concrete, (3) boiling rehmannia root, rhizoma dioscoreae with water, purifying with 70% ethanol, concentrating the alcohol liquid to obtain concrete, (4) steeping poria cocos to obtain extract, (5) merging the extract and spraying volatile oil, charging right amount of twain-80 to prepared plaster- solution, heating polyethylene glycol, charging in thick grease and volatile fluid, stirring homogeneously, instilling into fluid wax (0-5 deg. C), thus preparing drop pills.

The invention relates to a preparation method of polyvinylidene fluoride. An emulsifier and a dispersing agent are replaced by increasing the stirring speed. The preparation method disclosed by the invention comprises the following steps: adding a fluorine-containing organic solvent, a vinylidene fluoride monomer, an initiator and a chain transfer agent into a reaction kettle containing paraffin and water, stirring, increasing the temperature to 55-110 DEG C, reacting for 3-8 h, stopping reaction, washing, filtering, and drying to obtain high-purity polyvinylidene fluoride resin. The preparation method disclosed by the invention is simple in post-treatment process; the prepared powdery polyvinylidene fluoride resin has higher purity and better heat stability, physical and mechanical properties and is convenient to control; and thus, the preparation method of the polyvinylidene fluoride resin disclosed by the invention is applied to industrialization production.

The invention discloses isotactic polypropylene/tall oil acid/polybutadiene composite sound absorbing cotton and a preparation method thereof. The composite sound absorbing cotton is formed by a top face layer, a back face layer and a cellucotton layer arranged between the top face layer and the back face layer. The top face layer and the back face layer are made of a non-woven fabric material. The composite sound absorbing cotton is characterized in that the non-woven fabrics are prepared by the following raw materials by weight through a melt-blow method: 100 parts of isotactic polypropylene, 1-2 parts of tall oil acid, 8-10 parts of polybutadiene, 5-7 parts of solid paraffin, 1-2 parts of barium stearate, 2-3 parts of aluminium hydroxide, 14-17 parts of diethylene glycol dibenzoate, 1-2 parts of zinc borate, 12-14 parts of dry shells, 7-9 parts of basalt, 3-5 parts of apocynum venetum, 2-4 parts of white peony roots, 1-2 parts of bighead atractylodes rhizome and 4-5 parts of auxiliary. The isotactic polypropylene/tall oil acid/polybutadiene composite sound absorbing cotton has the advantages of being high in tensile property, large in product void rate and good in breathability, and improves the sound absorbing effect of ordinary sound absorbing cotton.

The invention discloses chewing gum with a halitosis dispelling effect. The chewing gum consists of 0.01 to 8 weight parts of nano zinc oxide, 37 to 44.99 weight parts of gum base, 5 to 15 weight parts of xylitol, 5 to 15 weight parts of sorbitol, 5 to 15 weight parts of mannitol, 5 to 15 weight parts of maltitol, 10 to 12 weight parts of mint and 3 to 5 weight parts of flavoring agent; the gum base consists of the following raw materials in percentage by mass: 40 percent of butyl rubber, 25 percent of hydrogenated rosin glycerol ester, 11 percent of paraffin, 1 percent of beef tallow and 23 percent of polyvinyl acetate. The nano zinc oxide is added into the raw materials, bacteria in an oral cavity can be dispelled by zinc oxide when an eater chews the chewing gum in the oral cavity, and the halitosis dispelling effect is fully achieved; and meanwhile, viscosity of the substrate of the chewing gum is strong, so that food residues on the surfaces of teeth can be removed, and halitosis caused by the food residues is avoided.

The invention belongs to the field of thermal insulation coatings, and particularly relates to a paraffin coated SiO2 color phase change microcapsule as well as a preparation method and application thereof. The paraffin coated SiO2 color phase change microcapsule takes a phase change microcapsule of silica coated paraffin as a carrier, and organic reactive dye molecules are fixed on the surface of the carrier; the phase change microcapsule with the paraffin coated with the silicon dioxide is of a core-shell structure, the paraffin serves as a microcapsule core, and the outer surface of the paraffin is coated with the silicon dioxide serving as a shell layer. The excellent ultraviolet absorption capacity of silicon dioxide and reactive dye molecules is utilized, the ultraviolet absorption capacity of a microcapsule sample is remarkably increased, the ultraviolet-proof capacity of the coating can be improved when the microcapsule is added into the interior wall coating, and due to the fact that the heat conductivity of the microcapsule is improved through a silicon dioxide inorganic shell, temperature adjustment of the coating is quicker.

A process for removing metals from hydrocarbon oil by use of the by-product obtained in preparing fatty acid by oxidizing paraffin wax includes mixing the hydrocarbon oil with said by-product as demetalating agent, water and demulsifier, emulsifying to change the metals into water-soluble matches to be dissolved in water, and oil-water separation. Its advantage is high efficiency.

The temperature-sensitive paraffin perfusion film and the preparation method thereof provided by the invention can overcome the problem that a liquid lubricant is easy to lose in the prior art, and have both the stability of a solid coating and the pollution resistance of the liquid lubricant. According to the technical scheme, the surface of the polymer porous membrane is coated with molten solid paraffin through suction filtration. The surface wettability and pollution resistance of the prepared paraffin perfusion membrane have the temperature sensitive characteristic, the stability of paraffin on the surface of the membrane is high, and efficient pollution resistance in membrane filtration can be achieved. The method can be used in the fields of wastewater treatment, food processing and biological medicine.

The invention relates to whitening cosmetic containing arbutin, a mulberry leaf extract and a rose extract. The whitening cosmetic consists of the following components in parts by weight: 20-30 parts of squalane, 4-6 parts of paraffin wax, 1-3 parts of olive oil, 4-6 parts of isopropyl myristate, 0.5-1.5 parts of guar gum, 0.05-0.1 parts of the arbutin, 0.05-0.1 parts of the mulberry leaf extract and 0.05-0.1 parts of the rose extract. The whitening cosmetic disclosed by the invention has the beneficial effects that the cosmetic is reasonable in prescription and significant in effect, and the raw materials are natural and free from toxic and side effects; and the whitening cosmetic is applicable to people at all ages.

A use of a foulant collector in a vessel or conduit in a paraffinic froth treatment (PFT) process. The foulant comprises asphaltenes. The foulant collectors are purposed to reduce build-up in the vessel or conduit and/or to reduce downstream foulant carry-over in the process. The surface of the foulant collectors may have an average water contact angle of less than 90 degrees. Additionally, together with such foulant collectors, a fluorocarbon polymer may be used as a surface of a vessel or conduit in the PFT process, for reducing fouling.