211 results about "Diallyl phthalate" patented technology

The invention discloses a preparation method for synthesizing a thickening agent by acrylic ester. The thickening agent synthesized by acrylic ester comprises crylic acid, acrylamide, 25 percent of ammonia water, a functional monomer, EDTA, deionized water, tasteless kerosene, 3<#> white oil, diallyl phthalate, ammonium persulphate, Span 80 and isomeric hexadecanol polyethenoxy ether, wherein the functional monomer is prepared from alicyclic amine polyethenoxy ether, methyl methacrylate, nitroxide free radical pipradrol and sodium methoxide. The preparation method synthesizes a special weak cation type (methyl) acrylic ester functional monomer by adopting an ester exchange method, and the functional monomer and vinyl monomers of the acrylic acid, the acrylamide, and the like are adopted to synthesize a textile printing thickening agent by adopting inverse emulsion polymerization. The thickening agent has the characteristics of high thickening capacity, strong electrolyte resistant capacity and good water-retaining property.

A medical device (110) including a catheter shaft (111) and a unitarily and continuously formed portion (108) having a varying durometer, and optionally including an expandable balloon (18, 118). One or both of the unitarily and continuously formed portion (108) and the balloon (18, 118) are made from an irradiation cross-linked or cross-linkable mixture of a polyamide elastomer and at least one additional cross-linking reactant. The polyamide elastomer can be a polyester amide, a polyether ester amide or a polyether amide, and is preferably a nylon block copolymer. The aromatic molecule can be 1,3,5 triethyl benzene; 1,2,4 triethyl benzene; and 1,3,5 triisopropyl benzene. The cross-linking reactant can be: (a) a difunctional material, (b) a trifunctional material, (c) a tetrafunctional material, or (d) an aromatic molecule containing at least two ring substituents, each of the ring substituents having labile hydrogens at a benzylic site therein. The cross-linking reactant can also be diallyl phthalate or meta-phenylene dimaleimide.

The invention discloses a water-based dry-type complex film adhesive and a preparation method thereof, belonging to the field of preparation of adhesive. The preparation method of the complex film adhesive comprises the following steps: by using monomers, an emulsifier, an initiator, a buffering agent, deionized water, a pH regulator and water-based assistants as raw materials, emulsifying, carrying out seed reaction and polymerization reaction, and compounding to obtain the complex film adhesive of which the solid content is 45-55%, wherein the monomers comprise a hard monomer, soft monomers and functional monomers; the hard monomer is styrene; the soft monomers comprise butyl acrylate and 2-ethylhexyl acrylate; the functional monomers comprise acrylic acid or methacrylic acid, 2-hydroxyethyl acrylate or 2-hydroxypropyl acrylate, and diallyl phthalate; and the emulsifier comprises ammonium alkyl ether sulfate, sodium sulfosuccinate and sodium allyloxysulfonate in a weight ratio of 2:1:(0.4-0.8). The complex film adhesive has the advantages of high bonding strength, favorable affinity and covering performance for ink, and environment protection since the content of VOCs (volatile organic compounds) is lowered.

The invention discloses a method for measuring diallyl phthalate migration in food contact materials. The method includes the steps: firstly, preparing a standard working solution, a food stimulant test solution and a blank test solution; secondly, adopting a high performance liquid chromatograph-tandem triple quadrupole mass spectrometer to perform liquid chromatograph-tandem mass spectrum measurement on the three solutions in the first step, drawing a regression curve of the standard working solution by taking concentration x of phthalate in the standard working solution as an abscissa and corresponding measured quantitative ion peak area y as an ordinate, and calculating slope a and intercept b of the regression curve according to a linear equation, of y=ax+b, obtained by the curve; thirdly, according a formula that c=[(y-y)-b]/a, calculating concentration of diallyl phthalate in the food stimulant test solution. By the aid of the method, migration of the diallyl phthalate in the food contact materials can be measured accurately, quantification is accurate and reliable, and reproducibility is good.

The invention relates to a magnetic material adhesive and a preparation method thereof. The components of the magnetic material adhesive comprise a-cyan ethyl acrylate as a main part, wherein the mass of diallyl phthalate is 6%-18% that of the a-cyan ethyl acrylate; the mass of maleic anhydride is 500-850 ppm that of the a-cyan ethyl acrylate; the mass of a modifier is 250-1,000 ppm of the a-cyan ethyl acrylate; the mass of an anion polymerization inhibitor is 30-1,00 ppm that of the a-cyan ethyl acrylate and the mass of a free radical polymerization inhibitor is 300-750 ppm that of the a-cyan ethyl acrylate. During the preparation, all the components are mixed at a temperature of 40-60 DEG C and stirred to uniform, and thus the magnetic material adhesive with fast adhesive speed, super penetration, high strength, impact resistance and water resistance can be obtained. The preparation process of the invention is simple and easy to operate. The strength, the impact resistance and the water resistance of the adhesive are greatly improved without influencing original fast adhesive speed and long storage life of the adhesive. The magnetic material adhesive has a certain application value.

The invention relates to a flexible unsaturated polyester resin and a preparation method and application thereof. The resin is prepared by mixing and reacting a dibasic acid or anhydride, a monobasic acid and dibastic alcohol and diluting the reaction product with a diluent and comprises the following components in percentage by weight: 17 to 24 percent of dibastic alcohol, 3 to 5 percent of monobasic acid, 39 to 53 percent of dibasic acid or anhydride and 26 to 35 percent of diluent, wherein the monobasic acid is oleinic acid; and the diluent is styrene and diallyl phthalate which accounts for 2 to 5 percent of the total weight of the diluent. The preparation method comprises the following steps: performing polycondensation reaction on the dibastic alcohol and the dibasic acid or anhydride for 8 to 12 hours at the temperature of about 200 DEG C, wherein the acid value is 40 to 50mgKOH/g, reducing the temperature, adding the oleinic acid, performing polycondensation reaction for 2 to 3 hours, after the reaction is completed, reducing the pressure and performing vacuum treatment until the acid value is 25 to 35mgKOH/g, adding an additive, cooling, and adding the diluent to obtain the flexible unsaturated polyester resin. The prepared flexible unsaturated polyester resin has high elongation at break and impact toughness and certain strength, and meets the requirements on physical properties of articles.

The invention discloses a liquid rubber modified epoxidized natural rubber cable material. The liquid rubber modified epoxidized natural rubber cable material comprises raw materials in parts by weight as follows: 80-95 parts of epoxidized natural rubber, 5-20 parts of carboxyl-terminated liquid nitrile rubber, 5-15 parts of modified starch, 2-8 parts of ultrafine acrylate rubber powder, 3-8 parts of polystyrene thermoplastic elastomer, 10-25 parts of silica, 8-35 parts of modified diatomite, 15-27 parts of tetrapod-shaped zinc oxide whiskers, 1-2.5 parts of zinc oxide, 0.8-1.3 parts of sorbic acid, 2-4 parts of stearic acid, 1-2.6 parts of sulfur, 2-2.9 parts of dicumul peroxide, 1-3.5 parts of diallyl phthalate, 2-3.5 parts of diethylene glycol dibenzoate, 2-5 parts of calcium stearate, 2-5 parts of an accelerant, 2-5 parts of an anti-aging agent and 3-7 parts of a coupling agent. The liquid rubber modified epoxidized natural rubber cable material has high strength, good anti-aging performance and long service life.

The invention discloses a method for preparing high-oil absorption resin, which is characterized by adding a dispersant of polyvinyl alcohol, a precipitating reagent of cyclohexane, an emulsifying agent of sodium dodecylbenzene sulphonate, a single body of butyl methacrylate and stearyl methylacrylate, an initiator of potassium persulphate into deionized water, introducing nitrogen for deoxygenation, performing suspended emulsion polymerization, after reaction for a certain time, adding a cross-linking agent of diallyl phthalate, continuously reacting for at least two hours, performing cooling, separation, extraction by using an Soxhlet extractor for at least 12 hours and vacuum drying to obtain the products. By the aid of the preparation method of the invention, porous high-oil absorption resin can be obtained, which has oil-absorption capability to toluene reaching up to 24, and can be applied to the field of environmental protection and the like.

The invention is a water-tight anticoagulant that mainly comprises the following raw materials: 2-Acrylamido-2-methylpropanesulfonic, Benzenesulfonic acid, 4-ethenyl-, sodium, Methacrylic acid, propenoic acid, aqueous ammonia, Sorbitan MOnooleate, Polyoxyethylene nonyl phenyl ether, Diallyl phthalate and Styrene/alpha-methylstyrene linear body and etc. The water-tight anticoagulant is fabricated through the following three steps of techniques: Neutralization, emulsification and polymerization. The inveintion is a water-tight anticoagulant for textile material printing, and the adding volume should be below 0.5 percent in printing paste or dyeing paste, so that water-tight coagulation prevention function can be fulfilled, and distinct and elegant printing patterns can be gained in dye printing paint printing. Meanwhile, the invention also has advantages of perfect levelling power, dispersion and migration prevention and etc.

The invention discloses aqueous composite membranes glue which comprises component A: butyl acrylate, styrene, acrylic acid, acrylic acid-2-hydroxypropyl, diallyl phthalate, phenolic ether sulfuric acid and softened water, component B: softened water, emulsifying agent comprising phenolic ether sulfuric acid, alkyl phenol ether and 1-propenyloxy-2-hydroxyl propane sodium sulfonate, sodium bicarbonate and ammonium persulphate, component C: ammonium persulphate and softened water, and component D: 20 percent of ammonia water. The component A is added in a pre-emulsifying tank, and 2 to 5 percent of the component A is taken out as seed liquid after emulsification; the component C is added in an initiator tank to react; the component B which is added in a reaction kettle is stirred to heat up, and then the seed liquid is added and is heated up continuously with the temperature kept between 80 to 90 DEG C; meanwhile, the component C and the residual component A are added drop by drop; after 1.5-hour heat preservation the temperature is cooled down; when the temperature is lower than 40 DEG C, the component D is added finally, the mixture is filtered for discharging. The invention has high safety, aqueous environmental protection and low cost, and is easy for industrialized production; moreover, the invention has high transparence, strong power-covering capability, fast drying speed, good heat endurance and freezeproof property and excellent initial viscidity and hold tack.

The invention relates to the technical field of PVC artificial leather, and especially relates to a low-smell and high-strength durable PVC artificial leather and a production method thereof. The method comprises the following steps: 1, mixing polyvinyl chloride with liquid nitrile butadiene rubber, castor oil and diallyl phthalate to obtain a mixed slurry; 2, directly knife-coating a base material through a knife coating process, and carrying out plasticizing reaction molding; or knife-coating by using a foaming agent-containing mixed slurry, and knife-coating a mixed slurry without the foaming agent; and 3, carrying out a post-treatment process comprising embossing, surface printing and the like to obtain the low-smell and high-strength durable PVC artificial leather. The tension load, ageing resistance and smell tests of the PVC artificial leather with the thickness of 1.4mm obtained in the invention according to QB/T2710, QB/T2779 and QB/T2725 show that the tension load is not lower than 400N, the surface at a low temperature does not crack, and the smell is not greater than 3 grade. The PVC artificial leather satisfies requirements of mechanical properties and smells of artificial leather for yacht seats, artificial leather for household automobile seats and artificial leather for engineering automobile seats.

This invention discloses a method for preparing a water-borne laminating adhesive. The adhesive is composed of: monomers including acrylic acid and methyl methacrylate, functional monomers including diallyl phthalate, hydroxyethyl acrylate, diallyl maleate and N-hydroxymethylacrylamide, initiator ammonium perdulfate, emulsifiers including sulfosuccinic acid and phenol ether sulfuric acid, buffers including sodium bicarbonate and ammonium bicarbonate, lauryl mercaptan, functional accessory materials including OT-75, mineral oil and water-soluble acrylic resin, pH regulator ammonia solution, and soft water. The adhesive has such advantages as no pollution, no toxicity, high safety and high cohesive force.

The invention relates to a rubber composition for low pressure power steering tubes. The rubber composition comprises the following components by mass: chlorinated polyethylene rubber 100 parts, fast extruding carbon black 40 to 60 parts, medium thermal carbon black 0 to 20 parts, calcium hydrate 10 parts, dioctyl ester 20 to 30 parts, magnesium oxide 7 to 15 parts, epoxy resin 3 to 5 parts, the antioxidant NBC 1 part, diallyl phthalate 6 to 10 parts, and 1,4-bis(tert-butylperoxyisopropyl)benzene 6 to 8 parts. According to the invention, chlorinated polyethylene is utilized to substitute chlorosulfonated polyethylene in the low pressure power steering tubes, which guarantees heat resistance and oil resistance of the low pressure power steering tubes and enables a low price to be obtained;a production process for the rubber composition is simple, and the product of the rubber composition has widely available sources and better practical application.

The invention discloses a heat resistant and oil resistant ethylene propylene diene monomer rubber/acrylate rubber material. The raw material comprises the following components: ethylene propylene diene monomer rubber, acrylate rubber, EPDM rubber grafted with maleic anhydride, ethylene acrylate rubber, carbon black, organically modified montmorillonite, zinc oxide, stearate, magnesia, zinc methacrylate, dicumyl peroxide, trimerization thiocyanate, diallyl phthalate ester, accelerator M, accelerant DZ, an accelerator CZ, an antioxidant, diethylene glycol dibenzoate, epoxy soybean oil, N-cyclohexylthio phthalimide and a silane coupling agent. The heat resistant and oil resistant ethylene propylene diene monomer rubber/acrylate rubber material disclosed by the invention is high in mechanical strength,excellent in oil resistance, heat resistance and resistance to aging, and the cable made from the material is long in service life, so that the cost can be reduced.

The invention discloses an elastic emulsion with high adhesive force and a preparing method thereof. The elastic emulsion is composed of, by weight, nuclear monomers: 1-10 parts of methyl methacrylate, 4-12 parts of styrene, 0.1-5 parts of diallyl phthalate and 3-25 parts of butyl acrylate; shell monomers: 1-8 parts of methyl methacrylate, 3-10 parts of styrene, 5-12 parts of butyl acrylate, 1-2 parts of methacrylic acid, 0.1-5 parts of glycidyl methacrylate, 0.1-3 parts of organosilicone monomer, 0.1-7 parts of diacetone amide, 0.2-8 parts of adipic dihydrazide, 0.5-2 parts of emulgator, 1-3 parts of initiator and 48-52 parts of water. An outer wall elastic coating prepared from the elastic emulsion has excellent base material adhesive force, the defect that an outer wall elastic coating foams in the presence of water is overcome, and water resistance and stain resistance are realized.

The invention relates to the field of printing, and discloses a metal printing UV varnish and a coating method thereof. The UV varnish comprises the following components in percentage by mass: 30-60% of photocuring resin prepolymer, 30-60% of active monomer, 5-15% of photoinitiator and 0-15% of additive. The photocuring resin prepolymer is composed of at least one of a modified epoxy acrylic resin, a modified polyurethane acrylic resin and diallyl phthalate. The active monomer is composed of at least one of ethoxy acrylate, hexanediol diacrylate, acryloylmorpholine, trihydroxy acrylate, hydroxyethyl methacrylate and tripropylene glycol diacrylate. The UV varnish has the advantages of favorable leveling property, favorable gloss, favorable adhesive force and high photocuring efficiency. When being matched with the specific coating method disclosed by the invention, the UV varnish can not easily produce blisters, cratering, particles or other apparent defects.

The invention discloses a nano-material-modified natural rubber cable material which is prepared from natural rubber, liquid isoprene rubber, modified superfine lana powder, superfine acrylate rubber powder, stearic acid, zinc oxide, nano calcium carbonate, carbon black, nano alloy, sulfur, 1,4-bis-tert-butyl-peroxycumene, diallyl phthalate, castor oil, bis octadecanol ester, bis(P,P-bis-ethylhexyl diphosphato)ethanediolato titanate, an anti-aging agent and an accelerator. The nano-material-modified natural rubber cable material has the advantages of excellent mechanical properties and favorable aging resistance; and the cable prepared from the material has the advantages of favorable comprehensive properties and long service life.

The invention provides an improved starch textile sizing agent. The improved starch textile sizing agent is prepared from the following raw materials in parts by weight: 8-17 parts of ethylhexyl-2-acrylate, 9-13 parts of dibutyl diacrylate, 10-15 parts of diallyl phthalate, 5-8 parts of hydroxypropyl methylcellulose, 4-7 parts of nano-silicon nitride, 6-8 parts of hydroxypropyl distarch phosphate, 4-9 parts of lauryl alcohol polyoxyethylene, 7-10 parts of polyacrylate, 15-26 parts of modified starch, 18-27 parts of polyvinyl alcohol, 20-26 parts of nano-silicon dioxide modified starch, 8-14 parts of protein size, 3-5 parts of kaolin, 6-15 parts of wheat starch and 2-3 parts of polyacrylate. The improved starch textile sizing agent has the beneficial effects that the sizing yarn quality is improved, the sizing agent high in strength and low in tension is easy to desize, the adhesiveness of the sizing agent is improved, and the sizing yarn quality is improved; besides, the improved starch textile sizing agent is quick to biodegrade and small in environmental pollution.

The invention discloses a heatproof corrosion-resistant cable material for urban rail transport and a preparation method thereof. The heatproof corrosion-resistant cable material is prepared from the following raw materials, by weight, 38-46 parts of teflon, 24-33 parts of a liquid crystal polymer, 16-22 parts of polyarylsulfone, 10-15 parts of a nano-zeolite molecular sieve, 6-12 parts of hexaphenoxy cyclotriphosphazene, 5-10 parts of diethylene glycol dibenzoate, 3-6 parts of microcrystalline wax, 8-16 parts of hollow glass microspheres, 14-18 parts of a composite flame retardant, 4-9 parts of melamine cyanurate, 2-3 parts of tri(mercaptoacetic acid n-butyl ester)antimony, 2-3 parts of 2-octyldodecanol, 10-15 parts of diallyl phthalate, 2-3 parts of Stearoylbenzoylmethane and 1-2 parts of 6-ethoxy-2,2,4-trimethyl-1,2-dihydro-quinoline. The cable material has good heat resistance, and the heat resistance grade reaches 160 DEG C. In addition, the cable material has excellent corrosion resistance, is especially resistant to corrosive mediums such as acid, alkali, salt, oil and the like, has good wear resistance, weather ageing resistance, flame resistance and the like, and can completely meet requirements of performance when used under conditions of high-temperature corrosive mediums.

The invention discloses a high-strength and anti-aging computer cable. The high-strength and anti-aging computer cable comprises a cable core and a sheath wrapping the cable core, wherein the sheath is made from a chlorinated polyethylene composite; raw materials of the chlorinated polyethylene composite comprise chlorinated polyethylene, polyvinyl chloride, zinc oxide, magnesium oxide, stearic acid, carbon black N234, white carbon black, gamma-mercaptopropyltrimethoxysilane, a silane coupling agent Si-69, zinc stearate, calcium stearate, epoxidized soybean oil, nano-silica, activated carbon, organically modified montmorillonite, a plasticizer DOP, an anti-aging agent, a scorch retarder CTP, sulfur, 1,3,5-trimercapto-2,4,6-triazine, diallyl phthalate and an accelerator. The high-strength and anti-aging computer cable has high strength and excellent ageing resistance and can meet the use requirements of computer cables.

The invention discloses a composite heat-preservation material with kieselguhr and a preparation method of the composite heat-preservation material. The composite heat-preservation material is prepared from the following main components, namely perlite, polystyrene foam granules, hydrogenated butadiene-acrylonitrile rubber and kieselguhr, and semi-hydrated gypsum, methyl vinyl silicone rubber, diallyl phthalate, sucrose acetate isobutyrate, ethylparaben, cetyl trimethyl ammonium bromide, o-hydroxymethylbenzoic acid lactone, polypropylene fiber, polyimide fiber, an adhesive, a surfactant and distilled water through processes such as ball milling, vacuum stirring, heating stirring and pressing molding, and thus the prepared composite heat-preservation material is high in adhesive strength, sufficient in toughness and good in heat-preservation effect, is capable of meeting industrial requirements, and has relatively good application prospects.