86 results about "Ethyl-2-cyanoacrylate" patented technology

A cyanoacrylate composition comprising (i) at least one lower cyanoacrylate monomer component selected from ethyl cyanoacrylate or methoxy ethylcyanoacrylate; (ii) at least one higher cyanoacrylate monomer component than in an amount greater than 12% by weight based on the total weight of the combination of the lower cyanoacrylate monomer and the higher cyanoacrylate monomer and (iii) a plasticizer. The higher cyanoacrylate monomer and the plasticizer are chosen from certain ones. The compositions cure to give flexible polymeric materials which are desirably also transparent.

A medical adhesive for adhering skin and hemostasis of viscera is prepared from at least two organic compounds chosen from alpha-ethyl cyanoacrylate, alpha-ethoxyethyl cyanoacrylate, alpha-butyl cyanoacrylate and alpha-octyl cyanoacrylate through proportional mixing.

The invention discloses metallic cathode electrophoretic paint and a preparation method thereof. The metallic cathode electrophoretic paint comprises the following components: modified epoxy resin, methyl trimethoxy silane, hydroxy propyl cellulose acetic ester, 2-cyan ethyl acrylate, acrylamide, 2-acrylamide-2-methyl propanesulfonic acid, propanesulfonic acid and zinc stearate. The preparation method comprises the following steps: adding modified epoxy resin, hydroxy propyl cellulose acetic ester and 2-cyan ethyl acrylate into a reaction kettle, heating till the above components are molten, adding hydroxypropyl methylcellulose and methyl trimethoxy silane, heating, stirring to react, further adding deionized water, further reacting at certain temperature and vacuum degree, finally adding acrylamide, heating, stirring, subsequently cooling, adding 2-acrylamide-2-methyl propanesulfonic acid and zinc stearate, stirring, reacting, and finally cooling to room temperature, thereby obtaining the metallic cathode electrophoretic paint. By adopting the metallic cathode electrophoretic paint disclosed by the invention, the properties of a coated paint membrane are greatly improved, and the use range of the cathode electrophoretic paint is further widened and expanded.

This patent specification discloses a method and compositions for applying an artificial finger nail tip to a natural finger nail. The method applies: (i) multiple brush-on coatings of a mixture of ethyl-2-cyanoacrylate, poly methyl methacrylate, and hydroquinone; (ii) several spray coatings of an aromatic dryer of ethyl acetate and aromatic amines; and (iii) at least one dip of glaze powder of poly (ethyl or ethyl/methyl) methacrylate, benzoyl peroxide, and silica as an opaquing agent. The preferred method is very easy to perform and does not require any use of polymer solvents or grinding or filing steps.

The present invention provides an ethyl-2-cyanoacrylate adhesive composition obtained as a result of significant improvement on conventional problems, that is, irritating odor and whitening of conventional ethyl-2-cyanoacrylate adhesive compositions. According to a method of the present invention for purifying an ethyl-2-cyanoacrylate adhesive composition, a sum total of an acrylonitrile content and an ethanol content is arranged to be in a range of 1 ppm to 150 ppm, by carrying out deaeration at the same time as injection of an inactive gas at a reduced pressure in a range of 100 Pa to 10000 Pa at a temperature in a range of 5° C. to 50° C. Thereby, the method of the present invention allows improving irritating odor and whitening.

The invention provides a copper base alloy powder preset coating for underwater laser cladding and a preparation method of the copper base alloy powder preset coating, and aims to solve the problems that cracks, air holes and other defects are prone to being generated to an alloy coating prepared through an existing water environment laser cladding method and a matrix. The preset coating is composed of an alloy powder layer and a cladding protection coating. The alloy powder layer is formed by mixing copper base alloy powder and a binder. The cladding protection coating is prepared from, by mass percent, 40%-45% of CaF2, 4%-5% of CuO, 15%-18% of CaCO3, 10%-11% of TiO2, 4%-5% of Cu, 1%-2% of Si, 2%-3% of Al, 1%-2% of Mn, 2%-5% of alpha-ethyl cyanoacrylate and the balance activated carbon. A cladding layer obtained by carrying out underwater laser cladding through the preset coating is good in quality and has no defects such as cracks, inclusions and air holes, and good metallurgical bonding is formed by the cladding layer and the matrix.

The invention discloses a heat resistance instant dry adhesive and a preparation method thereof. The heat resistance instant dry adhesive comprises the following components in parts by weight: 80 to 90 parts of ethyl cyanoacrylate, 2 to 8 parts of ethyl cyanoacrylate, 2 to 6 parts of silica, 0.3 to 1 part of nitrobenzene, 0.5 to 2 parts of polyethylene glycol, 0.5 to 1 part of hydroquinone, 5 to 10 parts of polyvinyl acetate, 0.1 to 0.5 part of methanesulfonic acid and 0.05 to 0.1 part of sulfur dioxide. The preparation method comprises the following steps: adding the ethyl cyanoacrylate, the ethyl cyanoacrylate, the nitrobenzene, the hydroquinone, the polyvinyl acetate, the silica, the polyethylene glycol, the methanesulfonic acid and the sulfur dioxide into a reaction kettle; sufficiently stirring and uniformly mixing; heating to a temperature of 70 to 80 DEG C and performing the reaction for 50 to 80 minutes to be a paste state. The heat resistance instant dry adhesive provided by the invention can be rapidly gelled and meanwhile, also can achieve a good binding effect under high temperature conditions of 80 DEG C and 120 DEG C.

The present application discloses a strong base-502 glue fingerprint smoke revealing method and a smoke revealing box for carrying out said method. Said method comprises the following steps: putting a NaOH containing alkali cotton ball into a vessel of a smoke revealing box equipped with drop holes and openings; facing the opening position of the smoke revealing box to the fingerprint position, which abuts on an objective and is sealed; dropping the 502 glue continuously to the alkali cotton ball to initiate a natural reaction of 502 glue and NaOH to generate alpha-ethyl cyanoacrylate gas, wherein the fingerprint appears due to a polymerization reaction when said gas meets trace moisture. Said smoke revealing box comprises a box body, the top surface and at least one side surface and bottom surface thereof being equipped with openings, each opening being equipped with a push-pull lid, the top surface having a drop hole, a vessel being deposited inside the box housing, the opening of the vessel facing to the drop hole of the box body. The smoke revealing box as well as the smoke revealing method in accordance with the present application, capable of being manufactured simply, being operated conveniently, and being taken-with to a exploration scene, resolves the problem that fingerprint revealing of a too big, too heavy unmovable object is difficult.

The invention discloses a high-efficiency setting accelerator. The high-efficiency setting accelerator is prepared by mixing the following raw materials in parts by weight: 20-30 parts of alum clay, 10-15 parts of sodium aluminate, 2-4 parts of manganese naphthenate, 5-10 parts of 1,4-butynediol, 15-25 parts of HSA (high streace ammonia), 12-18 parts of poly (diallyldimethylammonium chloride), 10-15 parts of polysilicate ferric sulfate, 28-36 parts of SN-II high-efficiency water reducing agent, 2.5-4.5 parts of zinc dialkyl dithiophosphate, 4-6 parts of ethyl cyanoacrylate, 5-10 parts of modified soybean phospholipid, 10-15 parts of quicklime, 7-14 parts of ulexite powder, 5-10 parts of carbomer, 4-8 parts of diglycol dioleate and 3-5 parts of aid. The high-efficiency setting accelerator disclosed by the invention is good in setting acceleration effect and quick in setting, can enable concrete to be initially set within 3min and finally set within 6min and is low in construction water consumption, the water reducing rate of the setting accelerator can reach over 20%, and the setting accelerator can be used for accelerating the setting of the concrete, improving the early strength, reducing resilience and collapse and shortening the construction period, so that the setting accelerator is suitable for underground engineering sprayed concrete and ground concrete.

The invention discloses a low-temperature metal adhesive and a preparation method thereof. The adhesive comprises the following components in parts by weight: 45-60 parts of 2-ethyl cyanoacrylate, 35-45 parts of tetrahydrofuran polyether epoxy resin, 5-10 parts of ethylene carbonate, 8-15 parts of cyanoethyl ethylenediamine, 10-20 parts of aluminum oxide powder, 0.5-1 part of p-dihydroxybenzene, 1-5 parts of zinc oxide, 2-8 parts of titanium tetrachloride and 5-10 parts of polyvinyl butyral. The preparation method comprises the steps of adding 2-ethyl cyanoacrylate, tetrahydrofuran polyether epoxy resin, ethylene carbonate and polyvinyl butyral into a reaction kettle, and performing reaction for 40-60 minutes at 60-70 DEG C; then adding the other components into the mixture obtained in the above reaction, and reacting for 1-3 hours at 50-60 DEG C under the pressure of 0.02-0.06 MPa. The low-temperature metal adhesive disclosed by the invention can keep good adhesion performance at a low temperature and has stable performances at the same time.

The invention discloses a plastic protective coating capable of being underwater used and a preparation method thereof. The plastic protective coating comprises the following components in parts by weight: 10-20 parts of butyl acrylate, 2-7 parts of stearic acid, 1-5 parts of talcum powder, 0.8-2 parts of an anti-aging agent, 0.2-0.6 part of an anti-foaming agent, 2-5 parts of ethylene carbonate, 5-10 parts of 2-ethyl cyanoacrylate, 3-8 parts of acrylyl oxyethyl dimethyl ammonium chloride, 1-4 parts of disodium succinate, 0.8-2 parts of carboxymethyl cellulose, 8-15 parts of maleic anhydride and 10-20 parts of ethyl acetate. The preparation method comprises the following steps of: stirring and mixing butyl acrylate, stearic acid, ethylene carbonate, 2-ethyl cyanoacrylate, crylyl oxyethyl dimethyl ammonium chloride, disodium succinate, carboxymethyl cellulose, ethyl acetate and maleic anhydride; then increasing temperature and stirring in a reaction kettle for reaction; then reducing the temperature, adding talcum powder, the anti-aging agent and the anti-foaming agent, uniformly mixing, and grinding in a grinding machine to obtain the plastic protective coating.

The invention discloses a temperature-resistant wear-resistant high-quality acrylic board, belonging to the field of high-polymer materials. The temperature-resistant wear-resistant high-quality acrylic board is prepared from polymethyl methacrylate, ethyl cyanoacrylate, 3-trifluoroacetoxypropyltrimethoxy silane, methylchloroformate, ethoxylated trimethylolpropane triacrylate, acrylamide, 2-hydroxypropyl acrylate, dioctyl ester, tert-butyl peroxybenzoate, modified nano alumina, phthalic anhydride, methyltriethoxysilane, potassium pyrophosphate, methyl cellulose and microcrystalline cellulose. According to the characteristics of the polymethyl methacrylate, organic matters and inorganic matters in proper proportions are added to perform modification treatment so as to obviously enhance the comprehensive properties. The impact strength at normal temperature can reach 30 kJ/m<2> or above, the tensile strength can reach 90 MPa or above, the high temperature resistance is 140 DEG C, the surface Rockwell hardness is up to 100 or above, and the wear resistance is favorable, thereby well widening the application range of the acrylic board.

The invention discloses an air-drying protective paint for plastics and a preparation method thereof. The paint comprises butyl acrylate, light calcium carbonate, talcum powder, bentonite, a defoaming agent, ethylene carbonate, ethyl 2-cyanoacrylate, ethylene glycol monoethyl ether, disodium succinate, N-oleoylsarcosine octadecylamine and ethyl acetate. The preparation method comprises the following steps: adding the butyl acrylate, light calcium carbonate, bentonite, ethylene carbonate and ethyl acetate into a reaction kettle which is provided with a condenser, a stirrer and a thermometer, stirring, heating to reflux, continuing stirring to obtain a mixture 1, adding the ethyl 2-cyanoacrylate, ethylene glycol monoethyl ether and N-oleoylsarcosine octadecylamine, continuing stirring under reflux, cooling to room temperature, finally adding the talcum powder, defoaming agent and disodium succinate, and uniformly mixing. The air-drying protective paint for plastics has the advantages of quick air-drying capacity and weather resistance, and can be widely popularized and applied.

The invention discloses a preparation method for a nano particle-modified polypropylene composite sheet. The preparation method comprises the following steps: adding a modifying composition into a first extruding machine, and extruding at 90 to 120 DEG C to obtain a modified thin film; adding a polypropylene composition into a second extruding machine, and extruding at 220 to 240 DEG C to obtain a polypropylene foamed sheet; compounding the modified thin film and the polypropylene foamed sheet to obtain the nano particle-modified polypropylene composite sheet, wherein the modifying composition consists of ethyl cyanoacrylate, phenyl benzoate, sodium dodecyl sulphate, nano porous nickel oxide and tributyl phosphate; the polypropylene composition consists of homo-polypropylene, N-acyl-N-methyl glucamine, nanosilicon dioxide of which the surface is coupled with triethylamine, and a foaming agent. According to the preparation method, the compositions are molten by adopting simple extruding machines and are extruded to obtain a main body and a modifying body material; a composite plastic sheet is prepared by utilizing a multilayer compounding manufacturing method; the operation is easy and convenient; the produced composite sheet has the characteristics of good heat resistance, mechanical properties and the like.

The invention provides a preparation dedicated binder of a microbeam analysis standard sample. The preparation dedicated binder of a microbeam analysis standard sample comprises components with the following volume fraction: alpha-ethyl cyanoacrylate, the volume fraction of the alpha-ethyl cyanoacrylate is more than 50%, tackifier, the volume fraction of the tackifier is 1-5%; stabilizer, the volume fraction of the stabilizer is 1-5%, flexibilizer, the volume fraction of the flexibilizer is 1-5%, and polymerization inhibitor, the volume fraction of the polymerization inhibitor is 1-5%. Simultaneously, the invention further provides a blending method of the preparation dedicated binder of a microbeam analysis standard sample, a throwing sequence is as following: the alpha- ethyl cyanoacrylate, the polymerization inhibitor, the stabilizer, the flexibilizer, and the tackifier, blended using time is controlled within one tenth of a binder solidification time. The preparation dedicated binder of the microbeam analysis standard sample possesses appropriate liquidity, solidification speed, and good electroconductibility in the meantime, solves an embedding problem of the microbeam analysis standard sample in the preparation process, so that an embedding rate of finished products is effectively improved.

The invention discloses an antibacterial and antiviral composite material for an automobile steering wheel. The antibacterial and antiviral composite material is prepared from the following raw materials: polyethylene resin, polylactic resin, mica powder, alpha-ethyl cyanoacrylate, ethylene bis stearamide, diphenyl phosphate and an antibacterial agent. The antibacterial and antiviral composite material for the automobile steering wheel has good mechanical properties, antibacterial and antiviral properties and scratch resistance.

The invention discloses paper tube glue and a preparation method therefor. The paper tube glue is prepared from the following raw materials in parts by weight: 15-35 parts of alpha-ethyl cyanoacrylate, 3-7 parts of coumarone-indene resin, 2-8 parts of dibutyl phthalate, 1-5 parts of calcium carbonate, 3-6 parts of talcum powder, 10-15 parts of 2,6-di-tert-butyl-p-cresol, 4-8 parts of N-phenyl-beta-naphthylamine and 20-35 parts of water. The paper tube glue prepared by the preparation method has the characteristics of good initial adhesion, short initial adhesion time, high bonding strength, fluidity, no warping in bonding and good storage stability; by applying the paper tube glue to the manufacturing of paper tubes, manufactured paper tube products have the advantages of high strength, high stiffness and no embrittlement. The paper tube glue disclosed by the invention can be applied to the mechanical production of all kinds of high, medium and low paper tubes, can also be applied to the production of paper barrels, is used for replacing adhesives for the paper tubes such as white latex, polyvinyl alcohol and the like and is wide in range of application.

The invention provides an instant-dry adhesive and a preparation method thereof. The instant-dry adhesive is prepared from the following raw materials in parts by weight: 55 to 80 parts of alpha-ethyl cyanoacrylate, 10 to 40 parts of thickening agent, 1 to 3 parts of organic solvent, 0.5 to 5 parts of graphene and 0.5 to 5 parts of carbon nano tube. The invention also provides a preparation method of the instant-dry adhesive. The instant-dry adhesive has the advantages of being high in water resistance, impact resistance, high temperature resistance and corrosion resistance, and also has good binding power during construction in a water medium.

The invention discloses a stone adhesive. The stone adhesive is characterized in that alpha-ethyl cyanoacrylate is taken as a main body, and components also comprise a pyrogallic acid ester compound and titanium dioxide, wherein the mass of pyrogallic acid esters accounts for 500-800 ppm of the mass of the alpha-ethyl cyanoacrylate; the mass of the titanium dioxide accounts for 500-1000 ppm of themass of the alpha-ethyl cyanoacrylate. Compared with the prior art, the stone adhesive has the advantages that 1, the stone adhesive can permeate into marble gaps due to small viscosity and good permeability; 2, the dried stone adhesive is large in bonding strength and good in stability; 3, the stone adhesive does not yellow either after being placed for a long time; 4, a preparation technology is simple and easy to operate.

The invention relates to an antibacterial coating which comprises the following raw materials in parts by weight: water glass, alpha-ethyl cyanoacrylate, titanium dioxide, talcum powder, cylindrin, di-tert-butyl peroxide, glyoxal, sodium hexametaphosphate, sodium chloride, sodium sulfate, ethylene glycol, borax, furocoumarin and bamboo leaf phenolic ketone. The coating contains natural antibacterial components, is lasting in antibacterial effect, strong in adhesive power and good in mould forming property, and can be widely applied to the surfaces of various objects.

The invention provides a polylactic acid composite material for 3D (three-dimensional) printing and a preparation method thereof. The preparation method of the composite material comprises the following steps: dissolving N-vinyl pyrrolidone in 2-butanone; adding benzoyl peroxide; then, sequentially adding p-methylbenzene sulfonic acid and alpha-ethyl cyanoacrylate; then adding polylactic acid granules; heating and stirring; and cooling to room temperature, wherein the content of polylactic acid is 40-50%, the content of alpha-ethyl cyanoacrylate is 10-20%, the content of N-vinyl pyrrolidone is 10-20%, the content of 2-butanone is 20-30%, the content of benzoyl peroxide is 1-2% and the content of p-methylbenzene sulfonic acid is 1-5%. The composite material provided by the invention is simple in preparation process, and the prepared composite material can be used for 3D printing in a temperature range of 0-40 DEG C without blocking a nozzle of a 3D printer, so that the defect that high-molecular polymers need to be melted under a high temperature condition for conventional 3D printing using a polylactic acid consumable is overcome.

The invention discloses an anti-oil coating for kitchen walls. The anti-oil coating is composed of, by weight, 40-45 parts of diatomite, 10-12 parts of stove ash, 4-6 parts of Phaeocystis globosa, 12-14 parts of asbestos fiber, 3-5 parts of talcum powder, 2-4 parts of adhesive, 4-6 parts of alpha-ethyl cyanoacrylate, 3-5 parts of chloroprene, rubber adhesive, 2-4 parts of lignosulfonic acid, 3-5 parts of polyvinyl alcohol, 35-40 parts of water and 5-8 parts of calcium carbonate. The anti-oil coating has the advantages that the anti-oil coating is mainly suitable for being used to coat the kitchen walls, labor and money are saved, and cost is lowered; the anti-oil coating is less prone to shedding, anti-oil, easy to clean and good in effect.

The invention discloses a glass adhesive and a preparation method thereof. The glass adhesive is prepared from ethyl cyanoacrylate, polyvinyl acetate, hydroxypropyl methylcellulose, stearic acid, pentamethyldiethylenetriamine, dimethyl sebacate, tricalcium phosphate, silica, glass frit, dioctyl phthalate and azodicarbonamide. The preparation method comprises the following steps: stirring and mixing the polyvinyl acetate, hydroxypropyl methylcellulose, dimethyl sebacate, tricalcium phosphate and glass frit to obtain a first mixture, adding the first mixture into a reactor, adding stearic acid and azodicarbonamide under a vacuum condition, and performing heating and stirring to obtain a first material; adding the ethyl cyanoacrylate, pentamethyldiethylenetriamine, silica and dioctyl phthalate to the first material, and performing heating and stirring under the protection of an inert gas to obtain the glass adhesive. The glass adhesive provided by the invention has the advantages of goodadhesion and good resistance to acids and alkalis.

The invention discloses a preparation method of an impact-resistant low-whitening instant adhesive, and the method comprises the following steps: S1: copolymerizing a functional monomer mainly composed of alpha-ethyl cyanoacrylate, a butadiene gas monomer and a sulfonic acid group monomer to obtain a butadiene/acrylate copolymer modified alpha-ethyl cyanoacrylate prepolymer; S2, carrying out reduced pressure distillation, precipitation separation and supercritical separation to obtain a purified butadiene/acrylate copolymer modified alpha-ethyl cyanoacrylate prepolymer; and S3, uniformly stirring and mixing the butadiene/acrylate copolymer modified alpha-ethyl cyanoacrylate prepolymer with alpha-n-butyl cyanoacrylate to obtain the impact-resistant low-whitening instant adhesive. The instant adhesive is high in curing speed, high in bonding strength and simple and convenient to operate; and meanwhile, excellent impact resistance and low whitening performance are achieved.