259 results about "Methylethyl ketone" patented technology

The invention discloses polyurethane cured acrylic resin anti-fogging and abrasion-resistant paint and a preparation method thereof. The paint is prepared from the following components in parts by weight: 130-190 parts of hydrophilic acrylic resin, 210-525 parts of blocked polyether-isocyanate used as curing agent and 2.00-5.00 parts of butyltin dilaurate used as catalyst, wherein the blocked polyether-isocyanate curing agent uses polypropylene glycol and isophorone diisocyanate as raw materials. The preparation method of the paint comprises the following steps: reacting to obtain polyether-isocyanate prepolymer and then reacting with methyl ethyl ketoxime used as sealing agent. The test result shows that the paint prepared by the method has high anti-fogging property, good transparency and abrasion resistance and low production cost; and under the premise of ensuring the good anti-fogging property of the paint, the surface wear resistance can be increased and the application prospectis wide.

A catalyst for preparing ketone by dehydrogenating alcohol is prepared from Cu as active component, Zn, Cr, or K as active assistant and alumina as carrier through co-depositing, coating alkali metal by immersing or spraying, drying, and calcining. It has high activity and selectivity.

A process for preparing artificial stone and artificial luminous stone includes such steps as proportionally adding phthalate and tetramethyl (or pentamethyl) derivative to unsaturated resin, stirring, adding the vinyl derivative of benzene, stirring, adding MMA, high-speed stirring, adding filler, pigment, modified resin, methylethyl ketone peroxide and cobalt nephthenate, stirring, filling the mixture in mould, vacuumizing, heating at 50-70 deg.C for 1-3 hr, heating at 75-85 deg.C for 1-3 hr, natural cooling, and demoulding. Its products are also disclosed.

The invention discloses an HP-RTM technology based method for molding automobile surface external decorative parts. Matrixes of epoxy resin, phenolic resin or vinyl resin and a reinforcement of carbon fiber are added with fire retardant and antistatic agent; and a high pressure resin transfer molding technology is employed to mold automobile surface external decorative parts. The method comprises steps of: mixing well the matrixes, the fire retardant and the antistatic agent to obtain a first resin system; mixing the first resin system and methylethyl ketone peroxide in a mass ratio of 100:0.5-1 to obtain a second resin system; placing pre-molded reinforcement of carbon fiber in a die, injecting the well mixed second resin system into a mould cavity by the high pressure resin transfer molding technology to dip the reinforcement of carbon fiber with the resin system; solidifying and demoulding to obtain a product. The method of the invention enhances size precision of the product, lowers amount of porosity of the product and reduces production costs through high degree of automation.

The invention relates to a chemical technology field, concretely, discloses high-hardness unsaturated polyester full-bright top-coat paint and a preparation method thereof. The priming paint contains a first component, cobalt isocaprylate (blue wate), methylethyl ketone peroxide (white water), and styrene, wherein the weight ratio of the first component, to cobalt isocaprylate (blue wate), to methylethyl ketone peroxide (white water) and to styrene is 100:(0.8-2):(1-2.5):(30-40). The high-hardness white unsaturated polyester priming paint and the preparation method resolve the problem that the PU polyurethane paint and nitro cellulose paint have bad hardness, the unsaturated polyester coating has high hardness, and simultaneously, the high-hardness unsaturated polyester full-bright top-coat paint has good fullness, clunging and minute surface effect.

A ultraviolet curing coating and its production are disclosed. The coating consists of filming substance, diluent and light initiating agent or assistants. The diluent is a organic solvent which comprises one of several from toluene, acetic ether, acetate butyrin, isobutyl acetate, propyl acetate, alcohol, n-butyl alcohol, ethylene ketone, dimethyl benzene, methyl isobutyl ketone, acetone, methyl ethyl ketone, ethanediol butyl ester and propylene butyl ester. It costs low, has better abrasive-resistance, hardness and adhesion.

The invention provides a method used for preparing methylethyl ketone peroxide by taking an acidic ion exchange resin as a catalyst. According to the method, butanone and hydrogen peroxide are taken as raw materials, the acidic ion exchange resin is taken as the catalyst, dibutyl phthalate is taken as a diluent, after constant temperature stirring reaction, an obtained mixture is allowed to stand for separation, and an obtained oil phase is methylethyl ketone peroxide. According to the method, the heterogeneous catalyst is adopted, so that the catalyst and the reaction materials can be separated easily, and the catalyst can be recycled for a plurality of times; reaction is stable, the temperature is increased slowly, and reaction is continuous and stable; product active oxygen content is 13%, and economic value is high; application of strong such as sulfuric acid is avoided, so that corrosion on equipment is less, environment pollution is not caused, and environmental benefit is relatively high.

The invention relates to a preparation method of cation-type waterborne polyurethane wool anti-felting emulsion, and belongs to the field of wool fabric finishing auxiliaries. According to the preparation method of the cation-type waterborne polyurethane wool anti-felting emulsion, polyisocyanate is used as a hard segment, polyether polyol is used as a soft segment, an amine compound is used as a cation chain extender and sodium hydrogen sulfite or methyl ethyl ketoxime is used as an end-capping reagent; the adopted technical route is pre-polymerization reaction-hydrophilic chain extending reaction-end capping reaction-neutralization reaction-self-emulsifying reaction. The anti-felting emulsion synthesized by a self-emulsifying method has the characteristics of being excellent in storage stability, adjustable in solid content and convenient to use, the size change of wool knitting fabrics caused by felting during washing is remarkably reduced, the bursting strength, dyeing depth and dyeing fastness of the wool knitting fabrics are improved, and good application prospect is provided.

The invention discloses an impact and bending resistant environmentally-friendly rostone sheet. Raw materials of the sheet comprise, by weight, 8-12 parts of aluminum hydroxide powder, 3-7 parts of quartz sand, 50-60 parts of granite powder, 0.3-0.5 parts of gamma-trimethoxysilyl propyl methacrylate, 30-40 parts of isophthalic acid-neopentylene glycol resin, 5-9 parts of modified negative ion powder, 6-8 parts of glass fibers, 0.4-0.6 parts of cobalt isooctoate, 0.7-1 part of methylethyl ketone peroxide, 0.2-1 part of a higher alcohol fatty acid ester complex, 0.5-1.5 parts of an antioxidant 1010 and 0.3-0.7 parts of a pigment. The rostone sheet has strong impact and bending resistance, and can purify air to realize an environmental protection effect.

The invention discloses a preparation method of a polyurethane coating and adhesive with flame retardance and light resistance. The preparation method comprises the following steps: in the presence of a catalyst dibutyltin dilaurate, mixing polytetrahydrofuran ether glycol with isophorone diisocyanate to react at 70-100 DEG C for 1-3 hours to obtain a polyurethane prepolymer A; and adding a chain extender and methyl ethyl ketone to the prepolymer A to react at 65-85 DEG C for 1.5-3.5 hours, adding modified manganese hypophosphite and 4-carboxyphenylboronic acid to react at 75-95 DEG C for 1-2 hours, adding triethylamine for neutralization, adding a substance B and adding water for emulsification, thus obtaining the polyurethane coating and adhesive with flame retardance and light resistance. The prepared polyurethane coating and adhesive with flame retardance and light resistance is environment-friendly in preparation method and is low in price, is widely applied to the surfaces of walls, furniture and metalware and serves as the adhesive of plastics, glass, paper and textiles.

The invention discloses a method for producing a glass fiber reinforced plastic anchor pole, especially a method for producing a highly torsion-resistant, anti-shearing prestressing glass fiber reinforced plastic anchor pole, comprising the following steps of: mixing unsaturated polyester resin, nanometer mullite, aluminium hydroxide, polyurethane, zine stearate, white carbon black, methylethyl ketone peroxide, TBPB and a mould release agent according to a mass ratio in a resin solution groove with stirring to produce a resin solution, followed by vacuum-pumping and bubble-removing; towing glass fibres from a filament rack, twisting the glass fibres on a twisting support to form a twist of 10-30 degrees by rotating and towing the twisted glass fibres into the resin solution groove for impregnation; towing the twisted and impregnated glass fibres into a cone-shaped sleeve for folding and bundle-forming as well as preforming; finally continuously towing the folded bundles of glass fibres into a hot pressing die, followed by molding at the temperature of 160-180 DEG C. The method provided by the invention is simple, and the anchor pole produced by the invention has high torsion-resistant and anti-shearing performance as well as low cost.

The invention belongs to the technical field of hydroxylamine hydrochloride, and discloses a process for preparing hydroxylamine hydrochloride by adopting an oxime acidolysis method. The method comprises the following steps: a) a raw material cache configuration process; b) an acidolysis reaction process; c) a ketoxime rectification process; d) a dehydration and drying process; e) an alcohol recycling process; and f) an acetaldehyde oximation process. By adopting the process, the process route and technical parameters of hydroxylamine hydrochloride production by methyl ethyl ketone acidolysis are optimized, a pervaporation coupling technology is applied, the product yield and quality can be improved, further improvement of the industrial technology is promoted, related industries can be driven to develop, and resource reasonable utilization can be realized.

The invention discloses a polyurethane elastomer for coating equipment and a preparation method thereof. A mixture of mixed polyester polyol and diisocyanate reacts in a reaction kettle, a polyurethane quasi-prepolymer with isocyanato-NCO end capping is prepared, the polyurethane quasi-prepolymer reacts with hydroxyl containing resin, a polyurethane prepolymer with and end groups being in -NCO end capping is obtained; a chain extender and an organic bismuth catalyst are added; through vacuum defoamation and depressurization, materials are poured into a die, and through vulcanization and a step type aftertreatment process and through demolding, the polyurethane elastomer is obtained. The hardness of the elastomer is not lower than shore A 90; when the elastomer is soaked for 24 h in methyl ethyl ketone, the weight rate of the elastomer is not higher than 14%, and the industrial requirements of the coating equipment are completely met. The preparation method is low in cost, simple in process, green and environmentally friendly in the synthetic process and has good processing performance.

The invention provides alcohol acid ripple finish and a preparation method thereof. The alcohol acid ripple finish comprises, by weight, 50-60 parts of alcohol acid ripple resin (having solid content of 60+/-3wt%), 5-10 parts of polymerized oil pattern-adjustment resin, 2-3 parts of carbon black, 20-35 parts of light calcium, 0.5-1.5 parts of bentonite HFGEL-40A, 1-2.5 parts of lead naphthenate having the content of 10%, 2-3.5% of cobalt naphthenate having the content of 4%, 0.1-0.3 parts of an anti-skinning agent and 5-10 parts of toluene. The anti-skinning agent is methyl ethyl ketoxime, butyraldehyde oxime or cyclohexanone-oxime and is obtained by mixing. The film of the alcohol acid ripple finish has excellent characters, realizes a flexible change of ripple patterns according to user demands and can be prepared by a simple method.

The invention discloses a high-temperature-resistant corrosion-resistant modified unsaturated polyester resin fiberglass-reinforced plastic grille. The fiberglass-reinforced plastic grille is prepared from the raw materials in parts by weight: 50-150 parts of modified unsaturated polyester resin, 20-60 parts of phenol-formaldehyde resin, 5-15 parts of acrylic acid modified alkyd resin, 2-5 parts of silicon carbide, 1-4 parts of aluminum hydroxide, 3-9 parts of magnesium hydroxide, 2-6 parts of talcum powder, 1-4 parts of paraffin, 2-5 parts of zinc oxide, 3-5 parts of fiberglass, 1-4 parts of hydroxy silicone oil, 1-6 parts of wetting dispersant BYK-W940, 2-8 parts of anti-aging agent D, 1-4 parts of ammonium polyphosphate, 2-5 parts of hydroxyethyl methacrylate, 1-5 parts of tin dibutyl dilaurate, 1-4 parts of dicumyl peroxide, 3-5 parts of propenyl ether glycol peroxide, 1-5 parts of silane coupling agent KH-570, 2-5 parts of methylethyl ketone peroxide and 3-6 parts of cobalt naphthenate. The fiberglass-reinforced plastic grille disclosed by the invention has excellent high-temperature resistance and corrosion resistance.

The invention discloses a preparing technology of a chitosan-quaternary-ammonium-salt antibacterial agent. The preparing technology includes the following steps that chitosan and epoxypropyltrimethylammonium chloride are prepared into chitosan quaternary ammonium salt with the substitution degree, then the chitosan quaternary ammonium salt is reacted with isocyanate closed by methyl ethyl ketoxime, and the reactive chitosan-quaternary-ammonium-salt antibacterial agent can be obtained. The invention discloses the chitosan-quaternary-ammonium-salt antibacterial agent, chitosan-quaternary-ammonium-salt antibacterial liquid and the preparing technology of the chitosan-quaternary-ammonium-salt antibacterial agent and a preparing technology of the chitosan-quaternary-ammonium-salt antibacterial liquid. Synthesized quaternary ammonium salt modified chitosan is adopted, and single-closed isocyanate is introduced on the chitosan. The antibacterial performance of the reactive quaternary-ammonium-salt chitosan is good and is far higher than that of the chitosan; the chitosan is introduced into an isocyanate reaction group, and the good reactivity is achieved; the crystallinity of the quaternary-ammonium-salt chitosan is reduced, the isocyanate can be evenly reacted with fabric, the crosslinking effect is good, and the antibacterial performance can be remarkably improved.

The invention discloses a semi-enclosed organic amine curing agent, which is characterized by being obtained by mixing and reacting the following substances in percentage by weight: 15-40 percent of epoxy resin, 5-12 percent of amine, 15-35 percent of ketone and 20-35 percent of solvent, wherein the epoxy resin is bisphenol A epoxy resin or bisphenol F epoxy resin; the amine is diethylenetriamineor triethylene tetramine; the ketone is methyl isobutyl ketone or ethyl methyl ketone; and the solvent is toluene or xylene or a mixture of toluene and xylene in any ratio or normal butanol or isobutyl alcohol or a mixture of normal butanol and isobutyl alcohol in any ratio. Semi-enclosed organic amine obtained by multi-step synthesis is cross-linked with epoxy resin and naturally dried into a film, the cross-linked product is de-capsulated into primary amine for further curing with moisture in the air or moisture on the surface of a substrate, and the curing agent is partially enclosed, so that the service life of reactive double-component paint can be greatly prolonged after mixing; and epoxy resin is introduced into the curing agent to form a multi-aromatic ring anti-corrosive prepolymer, so that the corrosion resistance of a final film forming substance is further enhanced.

The invention discloses a polyester powder furniture coating, which is composed of the following raw materials (by weight): 0.4-14 parts of lecithin, 0.1-0.2 part of 1,2-epoxy-4-vinylcyclohexane, 1-2 parts of polybenzimidazole, 0.7-1 part of triethanolamine oleate, 2-3 parts of diacetone alcohol, 10-12 parts of tung oil, 0.06-0.07 part of sodium hydroxide, 3-4 parts of methanol, 0.1-0.2 part of perfluorosulfonate resin, 6-8 parts of acetic acid, 10-15 parts of 26-30% hydrogen peroxide, 10-17 parts of tetraethyl orthosilicate, 0.1-0.2 parts of Y-chloropropyltrimethoxysilane, 70-80 parts of unsaturated polyester resin, 0.6-1 part of methylethyl ketone peroxide, 0.1-0.2 part of aminoethylpiperazine, 10-14 parts of calsite powder, 0.6-1 part of formamide, 2-4 parts of tetrabutyl titanate and 3-4 parts of calcium aluminate.

A process for treating the sewage discharged in production of paramethadione includes such steps as heating it to a certain temp, pumping it in stripping tower containing filler, counter-current stripping, biochemical treating, and exhausting the waste gas to high space or catalytic burning it. Its advantages are high effect and high biochemical treating efficiency.

The invention discloses a high-water-resistance ultraviolet-curing wood paint which is prepared from polyurethane acrylate, epoxy resin modified acrylate, epoxy soybean oil acrylate, fluorinated acrylate, modified nano titanium dioxide, water, 1,6-hexanediol diacrylate, trimethylolpropane triacrylate, 2-hydroxyethyl acrylate, methylethyl ketone peroxide, phosphine 2,4,6-trimethylphenylformacyldiphenyl oxide, ethylene glycol, ethyl acetate, glycol ether, triethanolamine, thickener, a defoaming agent, a wax emulsion, a leveling agent, an epoxy curing agent and a dispersing agent. The high-water-resistance ultraviolet-curing wood paint has the advantages of high curing speed, favorable water resistance, favorable weather resistance and long service life.

A geopolymer grouting material is prepared from, by weight, 20-40 parts of stone flour, 30-45 parts of fly ash, 10-25 parts of silicon micro-powder, 25-35 parts of mineral slag powder, 5-10 parts of an alkali exciting agent, 5-10 parts of sodium hydroxide, 0.5-1 part of sugar calcium, 3-5 parts of re-dispersible latex powder, 1-3 parts of a polycarboxylic water reducer, 1-3 parts of sodium alkane sulfonate, 1-3 parts of aluminum stearate, 10-15 parts of phenolic resin, 0.5-1 part of N,N-dimethylaniline, 0.5-1 part of methylethyl ketone peroxide, 0.5-1 part of sodium polyacrylate, 0.5-1 part of triethanolamine and 0.5-1 part of citric acid. The 1d strength of the prepared grouting material is not less than 20.0 MPa, the flowability is not more than 20 s, the initial setting time is not less than 25 min, and the final setting time is not more than 60 min. The grouting material is widely suitable for rapid repairing of roads, underside grouting of cement concrete pavement soft base processing, bridge reinforcing and crack repairing, deep curtain grouting, lower margin bolt anchoring and other engineering positions. Compared with traditional cement-based grouting materials, the grouting material disclosed in the invention has the advantages of low cost, good corrosion resistance, good heatproof stability, good erosion resistance and good durability.

The present invention relates to a method for making imitation jade material. Its main raw material adopts aluminium hydroxide, stone powder, glass powder, unsaturated polyester resin, cobalt ethylhexoate or cobalt naphthenate and methylethyl ketone peroxide, and its technological process is simple, said product can be used for making building decorative materials of line, Roman orders and relief, etc.