43 results about "Tributyltin chloride" patented technology

The invention discloses a mould-prevention polyethylene water supply tubular product and a preparation method thereof. The mould-prevention polyethylene water supply tubular product is prepared from the following raw materials in parts by weight: 50-70 parts of medium density polyethylene, 25-45 parts of metallocene linear low density polyethylene, 20-30 parts of nylon 12, 15-20 parts of dimethyl fumarate, 4-8 parts of perfluorinated polyether lubricating grease, 3-6 parts of liquid paraffin, 1-2 parts of protocatechuic acid ethyl ester, 2-3 parts of propylparaben, 1.5-2.5 parts of trichlamide, 2.5-4.5 parts of antimony sulfate, 5-10 parts of jade powder, 15-20 parts of calcining loess, 2-3 parts of dodecanoic acid monoester with triglycerol, 1-2 parts of zinc undecylenate, 5-10 parts of epoxidized soybean oil, 1-2 parts of calcium stearate, 1-2 parts of barium stearate, 20-25 parts of filling master batch, 10-15 parts of dicyclohexyl phthalate, 2-3 parts of N,N'-Bis(1-methylpropyl)-1,4-phenylenediamine and 1.5-2.5 parts of chlorotributyltin. The mould-prevention polyethylene water supply tubular product has excellent antibacterial property, can effectively restrain and prevent attachment and breeding of mould, prevents mould from corroding the tubular product, has excellent mechanical property, ageing resistance, heat resistance and processability, and is long in service life and wide in application prospect.

The invention discloses a marine aquaculture net cage coating for preventing shellfish colacobiosis, which is prepared by mixing tung oil, asphalt, lithopone and a poisoning material, wherein the poisoning material is triphenyltin chloride or tributyltin chloride. The coating has simple preparation technology, low cost and convenient use, utilizes organic tin to obstruct and poison marine shellfish, effectively prevents shellfish colacobiosis to net cages, has good effects and does not cause undesirable effects to the growth and reproduction of fishes and shrimps.

The invention discloses a high temperature resistant and corrosion resistant coating for the surface of a distribution box and a preparation method of the high temperature resistant and corrosion resistant coating. The high temperature resistant and corrosion resistant coating for surface of the distribution box is prepared from the following raw materials in parts by weight: 50 to 80 parts of epoxy resin modified organic silicon resin, 10 to 20 parts of dimethylbenzene, 5 to 15 parts of propylene glycol, 5 to 8 parts of zinc naphthenate, 3 to 8 parts of tributyltin chloride, 3 to 5 parts of barium petroleum sulfonate, 3 to 10 parts of kerosene, 6 to 10 parts of lauryl diethanolamine, 2 to 8 parts of p-methylaniline, 5 to 8 parts of zinc powder, 3 to 6 parts of silicon nitride, 5 to 8 parts of chromium carbide, 5 to 10 parts of aluminium-plated glass micro-beads, 6 to 15 parts of silicon dioxide, 5 to 8 parts of aluminium oxide, 3 to 5 parts of calcium sulphate whisker powder, 5 to 10 parts of polytetrafluoroethylene, 5 to 10 parts of aloe juice, 10 to 20 parts of filler, 5 to 15 parts of pigment, 3 to 5 parts of a cardanol modified amine curing agent, 1 to 3 parts of a levelling agent, and 1 to 3 parts of an antifoaming agent. According to the high temperature resistant and corrosion resistant coating for the surface of the distribution box and the preparation method of the coating, reasonable raw materials and proportions are selected, so that the coating is dense and neat, does not crack, does not swell, does not fall off, and has high resistance to high temperature and corrosion; normal work of a distribution box is ensured; and the service life of the distribution box is prolonged.

The invention relates to a preparation method of tributyltin chloride. The preparation method includes: preparing tin tetrachloride and tetrabutyltin or a mixture containing tetrabutyltin according toa mole ratio of 1:1; adding the tetrabutyltin or the mixture containing tetrabutyltin into a reaction kettle, starting stirring, and adding chilled water, performing cooling to 0DEG C or below, vacuumizing the reaction kettle to ultimate vacuum, and closing a vacuum valve; continuously adding tin tetrachloride dropwise when the temperature in the reaction kettle is controlled ranging from -10DEGC to 0DEG C, keeping reaction for half an hour at the end of feeding, then transferring materials in the reaction kettle to a washing kettle, adding pure water, performing stirring, and conducting full standing; separating a monobutyltin trichloride aqueous solution at a lower layer in the washing kettle into a storage tank, leaving an upper layer organic phase in the washing kettle, controlling the temperature of the washing kettle at 90-110DEG C, and carrying out vacuum drying; and cooling the dried material to obtain a tributyltin chloride product. The process provided by the invention is simple and is easy to control, and the prepared product has high purity.

The invention discloses a synthesis method of a medical intermediate iodomethyl tributyltin. The synthesis method specifically comprises the following steps: dropwise adding n-butyllithium to the raw materials including diiodomethane and tributyltin chloride at minus 78 DEG C to carry out in-situ reaction to generate the target product iodomethyl tributyltin. The method has the obvious advantages that the reaction raw materials are easy to obtain; the reaction operation is simple; large-scale production is easy to achieve; the yield is high; the purity is good; the production cost is low.

The invention relates to a high decorative coating for an outer wall and a preparation method of the high decorative coating. The high decorative coating comprises the following components in parts by mass: 20-30 parts of water, 0.4-0.8 part of an ethylene-vinyl acetate copolymer, 10-22 parts of calcite powder, 5-12 parts of anatase type TiO2 nanopowder, 3-9 parts of zinc oxide whiskers, 1-5 parts of sericite, 2-7 parts of kaolin, 0.3-0.7 part of dimethylsiloxane, 0.2-0.48 part of molecular sieve, 3-7 parts of succinimide, 0.1-0.3 part of 2-amino-2-methyl-1-propanol, 0.1-0.3 part of 2-ethyl hexyl acrylate, 0.15-0.45 part of tributyl tin chloride, 0.008-0.015 part of cumene hydroperoxide, 1-4 parts of propylene glycol, 0.7-3.2 parts of a self-crosslinking elastic acrylic emulsion and 30-44 parts of a silicone emulsion. The coating provided by the invention has an excellent decorative effect.

The invention relates to a synthetic method for a sartan drug intermediate. The method includes: dissolving N-[(2'-cyanobiphenyl-4-base) methyl]-N-amyl acyl-(L)-valine methyl ester and sodium azide in an organic solvent, reacting under the catalytic action of catalyst, and obtaining the drug intermediate N-[(2'-tetra-nitrogen imidazolyl biphenyl-4-base]-N-amyl acyl-(L)-valine methyl ester. Rare-earth metal organic chloride is applied to the preparation process of the sartan drug intermediate, the fact that tributyl tin chloride can be substituted, better effect is obtained, product yield and quality are improved to some extent, reaction time is short, toxicity does not exist, a new assistant catalyst which is economical and environment-friendly is provided for synthesis of the sartan drug intermediate, and the sartan drug intermediate has quite high application value and economic value.