276 results about "Butyrospermol acetate" patented technology

The invention relates to a process for preparing high-purity diketene, which overcomes the defects of low purity of ketene, low purity and poor safety of diketene products formed by absorbing and polymerizing ketene, as well as complex process, high cost and high acetic acid content of raffinate in the concentration recovery of dilute acetic acid. The process for preparing high-purity diketene is suitable for absorbing and polymerizing ketene dimer at low temperature on the basis of adopting stable acetic acid cracking conditions and deep refrigeration to remove impurities from cracking gas and generate pure ketene gas, adopting a film evaporator to further purify diketene products at low temperature under low pressure, and adding stabilizers after introducing polymerization inhibitor and diketene for refining during the absorption and polymerization of ketene in order to improve synthesis safety and the stability of products in storage tanks. Meanwhile, the dilute acetic acid produced in the process reasonably matches the temperature of each point of a stripping section through a sensitive plate technique, improves the water-carrying capability of butyl acetate, and greatly reduces the concentration of acetic acid in concentrated raffinate.

The invention relates to the process for purifying acrylic acid which comprises using novel organic extracting agent to separate acrylic acid from its water solution, then removing light compositions such as water and acetic acid by azeotropic fractional distillation, wherein the organic extracting agent comprises toluene, acetic ether, butyl acetate, butyl acetate, propionic ether, diisobutyl ketone, isophorone, methyl phenyl ether or their mixture, preferably the composite compound of toluene with isobutyl phenylacetate, the mass ratio of toluene and isobutyl phenylacetate is between 1:1-1:50, preferably 1:2-1:12. The process according to the invention can realize high acetic acid removing ratio.

The invention discloses an invisible coating material and a preparation method thereof. The invisible coating material comprises a component A and a component B in a weight ratio of (10-15): 1, wherein the component A is prepared from the following raw materials in weight percentage: 40-60% of hydroxyl acrylic resin, 10-15% of carbon nanotube, 5-10% of ceramic powder, 5-8% of vacuum glass microbead, 1-5% of siloxane coupling agent, 1-10% of nano-sized barium sulphate, 1-10% of nano-sized titanium dioxide and 5-10% of dimethylbenzene and butyl acetate mixture; and the component B is prepared from the following raw material in weight percentage: 100% of biuret. The invention provides the invisible coating material with good invisible effect, high wave-absorbing capacity, small surface density, light weight and high bonding strength and the preparation method thereof.

Crude butyl acrylate streams, e.g., from the reaction of butanol and acrylic acid, are refined using a splitter distillation column to yield a butyl acrylate- and heavies-containing bottoms fraction and an overhead fraction containing dibutyl ether, butyl acetate, butanol and butyl acrylate. The bottoms fraction is then subjected to separation, e.g., by distillation, to separate heavies from the bottoms fractions and to recover butyl acrylate. A process for the production of butyl acrylate is also disclosed, which process comprises not only the above-mentioned refining steps but also includes the steps of withdrawing from the splitter distillation column the overhead fraction and distilling the overhead fraction to recover a bottoms stream containing butanol and butyl acrylate, at least a portion of which could be recycled for reaction with acrylic acid to make butyl acrylate, and recovering the separated heavies, at least a portion of which could be recycled to a reaction zone for the production of butyl acrylate. At least 10,000 lb(avoir) quantities of a butyl acrylate product comprising at least 99.8% by weight of butyl acrylate and containing not more than about 200 ppm butyl ether and not more than about 200 ppm butyl acetate are producible.

The invention discloses a waterproof adhesive, which is prepared from raw materials including 100 parts of asphalt, 10 to 50 parts of rubber, 10 to 50 parts of resin and 100 to 200 parts of solvent, wherein the asphalt is No.70, No.90 or No.110 petroleum asphalt; the rubber is natural rubber or / and synthetic rubber, and the synthetic rubber is styrene-butadiene-styrene (SBS) or / and neoprene; the resin is one or a random combination of more of petroleum resin, coumaroneindene resin and abietic resin; and the solvent is one or a random combination of more of isopropyl acetate, acetic ether, butyl acetate, isobutyl alcohol, isopropanol and ethanol. The waterproof adhesive is directly sprayed onto treated cement concrete pavement, bridge surface or steel bridge surfaces, and has low viscosity, high permeability, high waterproof performance, high adhesive force, high compatibility with and high affinity to asphalt concrete in a paved layer, the coating has high toughness and strength, the adhesive force for cement of the adhesive can reach over 1.2Mpa and the adhesive force for steel plate can reach over 1.5Mpa; meanwhile, the adhesive disclosed by the invention is nontoxic, safe and environmentally friendly, and the total content of benzene series is not more than 0.5g / kg.

The invention discloses novel alkyd resin containing titanium. A preparation method of the novel alkyd resin includes the following steps that 1, polyatomic acid anhydride, monobasic acid, polyhydric alcohol, vegetable oleic acid and antioxidant are mixed in a reaction kettle, a reaction is conducted at the temperature of 150-250 DEG C till the acid value is smaller than 15, and then the temperature is lowered to 30-100 DEG C; 2, then organic solvent and organic titanium are added and stirred to be uniform, and a reaction is conducted for 4-8 hours at the temperature of 80-120 DEG C; the organic solvent is one or more of fat hydrocarbon solvent oil, n-butyl acetate, acetic ether and acetic acid methyl ester; the weight ratio of polyatomic acid anhydride to monobasic acid to polyhydric alcohol to vegetable oleic acid to antioxidant to organic solvent to organic titanium is (130-150): (18-25): (125-145): (240-260): (1-2): (480-510): (38-46). The alkyd resin containing titanium prepared through the preparation method is high in drying speed, lustrousness and hardness, good in adhesive force and free of toxic or harmful substance.

The invention relates to the process for purifying acrylic acid which comprises using novel organic extracting agent to separate acrylic acid from its water solution, then removing light compositions such as water and acetic acid by azeotropic fractional distillation, wherein the organic extracting agent comprises toluene, acetic ether, butyl acetate, butyl acetate, propionic ether, diisobutyl ketone, isophorone, methyl phenyl ether or their mixture, preferably the composite compound of toluene with isobutyl phenylacetate, the mass ratio of toluene and isobutyl phenylacetate is between 1:1-1:50, preferably 1:2-1:12. The process according to the invention can realize high acetic acid removing ratio.

The invention relates a motor fuel addictive, specifically relates to an engine fuel petrol or diesel fuel additive, belonging to biological chemical industry area. The components of the addictive include hydrogenated vegetable oil triglyceride, biological lipase, dimethyl formamide and butyl acetate. The preparation method of the butyl acetate is that: at room temperature, 1-8 portions hydrogenated vegetable oil triglycerides, 0.2-0.9 portions of biological lipases, 15-30 portions of dimethyl formamides and 55-82 portions of butyl acetates are mixed, and are agitated at the temperature of 15-25 DEG C to be uniform, so that the product is obtained. The motor fuel addictive can be directly added into petrol or diesel fuel by volume of 1:1000, has the function of enhancing motivation and saving petrol, and also can decrease exhaust pollution, protect engines and prolong service life.

The invention relates to an anti-static multifunctional thin film which comprises the following ingredients by mass: 36 to 40 parts of PC resin, 38 to 42 parts of polyvinyl chloride resin, 34 to 38 parts of polythiophene, 38 to 42 parts of polyethylene glycol, 34 to 38 parts of polyphenylene vinylene, 34 to 38 parts of 2-hydroxyethyl methyl terephthalate, 40 to 44 parts of permethrin, 34 to 38 parts of polythene grafted maleic anhydride, 38 to 42 parts of triphenyl phosphite, 34 to 38 parts of poly-methylene-ether-diol, 38 to 42 parts of anti-static master batch, 34 to 38 parts of tetra-thio-naphthacene, 38 to 42 parts of polyaryl ether nitrile, 34 to 38 parts of octenyl succinic starch ester, 38 to 42 parts of polylactic acid, 34 to 38 parts of a Ca-Zn composite stabilizer, 38 to 42 parts of erucamide fluorescent powder, 34 to 38 parts of butyl acetate, and 38 to 42 parts of a lubricant. The anti-static multifunctional thin film is relatively corrosion-resistant, antistatic, anti-bacterial, and mildew-proof; the thin film product prepared according to the invention is suitable for various fields.

The invention provides abamectin emulsion in water. The emulsion in water is composed of the following components in percentage by weight: 1-7% of abamectin, 3-15% of an organic solvent, 2-6% of a macromolecular emulsifying agent, 4-10% of an anti-freezing agent and the balance of water, wherein the macromolecular emulsifying agent is obtained by three types of monomers including an acrylic acid type acid or ester, alkenyl ammonium chloride and allyl amide at the mol ratio of 1 to (0.05-0.5) to (0-0.5) through inverse emulsion polymerization, wherein the pH value of the polymer is 5-9 at 25 DEG C, the viscosity of 1% de-ionized water dispersion liquid is 100mPa*s to 10000mPa*s and the relative molecular weight is 500000-20000000; and the organic solvent is one or more of toluene, xylene, kerosene, ethanol, acetone, cyclohexanone, methyl ethyl ketone, isopropanol, butanol, acetic ether, butyl acetate and solvent gasoline. By virtue of the emulsion in water, abamectin, which has extremely low solubility in the water, oil or organic solvent, can form a stable and efficient water emulsion system. The invention further provides a preparation method of the abamectin emulsion in water.

The invention provides a PU smell removing polyurethane coating which consists of a component A, a component B and a component C, wherein the component A comprises a crylic acid modified polyester resin, n-butyl acetate, a defoaming agent, a dispersing agent, a leveling agent, a delustering agent and an anti-settling agent; the component B comprises polyisocyanates, a co-polymer and n-butyl acetate; the component C comprises n-butyl acetate, dimethyl carbonate, propylene glycol monomethyl ether acetic ester and dimethylbenzene. According to the PU smell removing polyurethane coating, by modifying the double-component hydroxy acrylic resin, the characteristic that the hydroxy acrylic resin is rapid in releasing a solvent is maintained, and the fullness of the hydroxy acrylic resin is remarkably improved; the PU smell removing polyurethane coating provided by the invention not only has the characteristics of rapid drying speed, high hardness and excellent fullness, but also is small in smell. A good synergistic effect of various components of the coating is brought into play, and particularly through interaction and balancing of the resin, the solvent and the hardening agent, the coating is free of conspicuous smell after the coating is constructed and dried for 48 hours.

The invention relates to a formula of a metallic flashing lacquer capable of resisting machining and cutting, and a preparation method of the metallic flashing lacquer. The formula comprises the following components in parts by weight: 35-50 parts of high-solid-content linear polyester resin, 6-15 parts of butylated amino resin, 3-18 parts of blocked isocyanate, 1-3 parts of polyamide, 1-4 parts of cellulose acetate butyrate, 0.05-0.4 part of surface leveling aid, 4-8 parts of aluminum paste, 1-3 parts of adhesion promoter aid, 4-8 parts of dimethylbenzene, 4-8 parts of butanol, and 4-8 parts of n-butyl acetate. The metallic flashing lacquer is less in environmental pollution, and lower in VOC content, and has excellent flexibility, surface decoration effect and finish turning and machining resistance properties.