75 results about "Ethyl cyanoacrylate" patented technology

A decorative artificial eyelash hair (10) has an artificial eyelash hair (12) with a base portion (14), a tip portion (16) and an outer surface (18). A decorative applique (20) is adhered to at least a portion of the outer surface (18) of the artificial eyelash hair (12). The applique includes a decorative component (28) fixed to the outer surface (18) of the hair (12) by an adhesive (24). The decorative component (28) is made of very small, reflective particles adhered to the outer surface of the individual artificial eyelash hair. The reflective particles (28) were accomplished using plastic film and colored crystals of different colors, hues and reflectivity. The particles (28) were adhered to the individual artificial eyelash hairs (10) with an adhesive: ethoxy-ethyl cyanoacrylate. The decorative artificial eyelash hair (10) can be practiced as artificial eyelash single hair extensions (10a), or it can be practiced on the individual artificial eyelash hairs of an artificial eyelash set (10b).

A non-aqueous drywall compound being the combination of a first component mixture of acetone, a non-aqueous liquid adhesive containing ethyl cyanoacrylate, and a powder containing calcium sulfate hemihydrate (plaster of Paris), the mixture being a pliable putty capable of adhering to gypsum wallboard or similar work surfaces. The second component of the drywall compound is an accelerator or activator containing acetone and toluene. The first component is applied to a defect in a work surface using a spreading tool and the second component is then applied to the exposed surface of the first component, such as by spraying or brushing, whereupon the drywall compound cures, hardens or sets within less than ten minutes to a state capable of being sanded into a smooth, hard surface and painted.

The invention provides an instantaneous adhesive and a preparation method thereof. The instantaneous adhesive comprises the following component in parts by weight: 75-90 parts of 2-ethyl cyanoacrylate, 3-10 parts of methyl methacrylate, 5-10 parts of ethylene carbonate, 2-8 parts of hydroxypropyl cellulose acetate, 0.1-0.5 parts of sulfur dioxide, 0.5-1 part of hydroquinone and 0.1-0.4 parts of silica. The preparation method comprises the following steps: adding 2-ethyl cyanoacrylate, methyl methacrylate, ethylene carbonate, hydroxypropyl cellulose acetate and sulfur dioxide into a reaction kettle, uniformly mixing, heating and reacting for 1-2 hours at the temperature of 70-80 DEG C; adding the hydroquinone and silica into the reaction kettle, and performing reduced pressure distillation at the temperature of 170-180 DEG C. The instantaneous adhesive provided in the invention has the characteristics of short gel time, high temperature resistance and high water resistance and is suitable for popularization.

The invention discloses an anti-stripping cyanoacrylate adhesive. The anti-stripping cyanoacrylate adhesive is prepared from, by weight, 30-50 parts of alpha-ethyl cyanoacrylate, 0.5-4 parts of EVA, 2-5 parts of beta-propiolactone, 0.5-1 part of modified titanium oxide, 8-12 parts of gelatin, 5-10 parts of polyacrylate, 2-8 parts of galactomannan, 3-8 parts of hydroxyethyl cellulose and 1-1.5 parts of coupling agent. The invention further discloses a preparation method of the anti-stripping cyanoacrylate adhesive. The anti-stripping cyanoacrylate adhesive is high in curing speed, good in water resistance, high in impact resistance, large in bonding strength, good in anti-stripping performance, small in use amount, free of toxicity and beneficial to environmental protection.

The invention belongs to the field of soil repairing materials and relates to a preparation method of a hydrotalcite composite material for repairing soil of farmland with copper ions exceeding the standard. According to the preparation method, modified hydrotalcite is composited into holes of ammoniated bagasse, and the preparation method comprises specific processes such as cleaning of bagasse, ammoniation of the bagasse, modification of hydrotalcite, preparation of the composite material and the like. The bagasse and hydrotalcite composite material prepared with the method has the advantages as follows: (1) the hydrotalcite is fixed in the bagasse by the aid of ethyl cyanoacrylate, the characteristics of low density and large specific surface area of the bagasse can be realized, and the advantage that the modified hydrotalcite has high adsorption capacity for the heavy metal copper ions can also be utilized; (2) compared with hydrotalcite powder, the composite material solves problems of agglomeration of the hydrotalcite powder and reduction of adsorption capacity for the copper ions and can also solve the problem of secondary soil pollution due to the fact that the hydrotalcite adsorbing the copper ions is difficult to recover; (3) compared with the bagasse, the composite material has the advantage that the copper ion saturated adsorption amount of the soil repairing material is substantially increased.

The invention provides a silver conductive adhesive, comprising a basic resin, a curing agent, a curing accelerator and a conductive material, wherein the basic resin is epoxy resin, the curing agent is binary aliphatic ether amine and versamid, the curing accelerator is 2,4,6-tri-(dimethylaminomethyl)-phenol, and the conductive material is silver powder. The silver conductive adhesive is characterized by furthering comprising alpha-cyan ethyl acrylate and polyether. The invention further provides a preparation method and application of the silver conductive adhesive. The silver conductive adhesive prepared in the invention can be completely cured within 5-15min at room temperature (25 DEG C) and has good cohesiveness and conductivity.

The invention discloses a production device for ethyl alpha-cyanoacrylate. The production device mainly includes a storage tank (F101), a storage tank (F102), a storage tank (F103), a storage tank (F104), a raw material pump (J101), a raw material pump (J102), a raw material pump (J103), a raw material pump (J104), a reaction kettle (D101), a delivery pump (J105), a water separator (L101), a condenser (C101), a condenser (C102), a condenser (C103), a cracking kettle (D102), a storage tank (F105), a buffer tank (F106), a vacuum pump (J106), a rectification tower (E101), a non-boiling-range product receiving tank (F107), and a finished-product receiving tank (F108), wherein the storage tank (F101) is used to store ethyl cyanoacetate, the storage tank (F102) is used to store dichloroethane, the storage tank (F103) is used to store formaldehyde, the storage tank (F104) is used to store dibutyl phthalate, the storage tank (F105) is used to store a crude product, and the storage tank (F104)has a cone bottom height of 470-475mm.

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 invention discloses waterproof glue for wood doors and windows. The waterproof glue is prepared from the following materials in parts by weight: 42-45 parts of neoprene, 16-20 parts of castor oil, 7-15 parts of nanometer silicon, 5-8 parts of sodium nitrite, 7-12 parts of ethyl acetate, 6-10 parts of toluene diisocynate, 9-15 parts of ethyl cyanoacrylate, 6-10 parts of lignosulfonate, 4-8 parts of titanium dioxide, 12-16 parts of epoxy acrylate, 13-18 parts of polyvinyl acetal adhesive, 10-15 parts of dibutyl phthalate, 12-15 parts of asbestos powder, 5-10 parts of dibasic lead phthalate, 2-6 parts of dihydropyridine, 4-7 parts of metallic soap, 4-9 parts of p-phenylenediamine, 11-16 parts of glycerol trioleate and 6-8 parts of calcium propionate. The waterproof glue for wood doors and windows has good waterproof effects, good anti-crack effects and strong adhesive force.

The invention discloses a sample preparation method and a sample preparation mold for a peel strength test on coated fabric. An adhesive adopted in a gluing and conglutination step in a sample preparation process is a single-componnet moisture-cured adhesive; ethyl cyanoacrylate is contained in the single-componnet moisture-cured adhesive; the compaction and the curing are carried out by adopting a sample preparation compaction mold in a compaction and curing step in the sample preparation process; the sample preparation compaction mold comprises a base and a gland which can be put together in a covering manner; multiple compaction grooves which are arranged in parallel are processed in the upper surface of the base; the tops of the compaction grooves are open; certain end surfaces of the compaction grooves are open; the lower surface of the gland is provided with multiple press heads correspondingly matched with the compaction grooves in a one-to-one correspondence manner. The sample preparation method provided by the invention can effectively keep the peel strength of a coating changeless, can be further used for the test, is applicable to the preparation of a test sample for the T-shaped peel strength of most coated fabric, and is especially applicable to PU (Polyurethane) and PVC (Polyvinyl Chloride) coated fabric.