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103 results about "Alkyl phenols" patented technology

Alkyl Phenols. Alkyl phenol ethoxylates are non-ionic surfactant components of industrial and domestic detergents, paints, cosmetics and pesticide formulations.

Phosphate-based fire-resistant oil with synergistically optimized flame resistance and stability and preparation method of phosphate-based fire-resistant oil

The invention relates to the field of fire-resistant oil, in particular to phosphate-based fire-resistant oil with synergistically optimized flame resistance and stability and a preparation method of the phosphate-based fire-resistant oil. The fire-resistant oil comprises base oil and an additive, the base oil is a mixture obtained by esterification of mixed alkylphenol and phosphorus oxychloride; the molar percentage of the mixed alkylphenol is as follows: 4-6% of phenol; 11 to 14 percent of p-methylphenol; 22 to 26 percent of 2, 5-position dimethyl phenol; 0.8 to 1.5 percent of 2, 4-position dimethyl phenol; 2.5 to 4 percent of 2, 3-position dimethyl phenol; 0.4 to 0.6 percent of 4-ethyl phenol; 40 to 48 percent of 3, 5-position dimethyl phenol; 8 to 11% of 3-ethyl phenol; 3 to 5 percent of 3, 4-position dimethyl phenol; the additives comprise an antioxidant, a corrosion inhibitor, an anti-foaming agent and an anti-hydrolysis agent; the addition amount of the antioxidant is 0.05-5% of the total mass of the base oil; the addition amount of the corrosion inhibitor is 0.001%-0.08% of the total mass of the base oil; the addition amount of the anti-foaming agent is 0.001%-0.009% of the total mass of the base oil; the addition amount of the anti-hydrolysis agent is 0.001%-0.005% of the total mass of the base oil. The fire-resistant oil provided by the invention can be safely used under the working conditions of high temperature and extreme pressure.
Owner:JIANGSU NUCLEAR POWER CORP

Butyl rubber sealing material and preparation method thereof

PendingCN121249059APolymer scienceVulcanization
The invention relates to the field of sealing materials, in particular to a butyl rubber sealing material and a preparation method thereof. Comprising the following components in parts by weight: 50-70 parts of butyl rubber, 30-50 parts of a brominated isobutylene-p-methylstyrene copolymer, 30-50 parts of carbon black, 8-12 parts of an alkyl phenolic resin vulcanizing agent, 3-5 parts of zinc oxide, 1-3 parts of stearic acid, 1-3 parts of an anti-aging agent and 5-10 parts of a plasticizer. The butyl rubber provides ideal air tightness and heat aging resistance, bromine atoms are introduced into the brominated isobutylene-p-methylstyrene copolymer, co-vulcanization with the butyl rubber is achieved, it is ensured that a uniform and stable co-crosslinking network can be formed between the two rubber molecules, and the service life of the rubber is prolonged. The alkyl phenolic resin vulcanizing agent can form a C-C bond with high bond energy with two rubber molecules, so that the thermal aging resistance of the butyl rubber sealing material is effectively improved, the compression set is reduced, and the butyl rubber sealing material with excellent performance is prepared.
Owner:NINGBO QIAOSHI RUBBER PLASTIC CO LTD

Alkyl phenolic resin for improving adhesive property of GLR rubber adhesive and preparation method thereof

The invention discloses an alkyl phenolic resin for improving the bonding performance of a GLR rubber adhesive and a preparation method thereof, and relates to the technical field of phenolic resin preparation, the alkyl phenolic resin comprises the following raw materials by weight: 60-70 parts of modified resin, 15-20 parts of modified EPDM, 2-4 parts of carbon fiber, 5-7 parts of naphthenic oil, and 0.8-1.0 part of an anti-aging agent. The modified resin is obtained by carrying out reaction grafting on methyl 3-dodecylthio-propionate, 5-amino-2-hydroxycycloheptyl-2, 4, 6-triene-1-ketone, punicic acid and the like, and then blending with alkyl phenolic resin. The modified EPDM is obtained by grafting a functional monomer and EPDM, wherein the functional monomer contains imidazole, amino, piperazine, phosphamide, hydroxyl and terminal carbon-carbon double bonds. The prepared alkyl phenolic resin has good corrosion resistance, toughness, antibacterial property, adhesion, oil resistance and flame retardance, and is worthy of popularization and application.
Owner:JIANGSU GUOLI CHEM TECH CO LTD

Synthetic method of lubricating oil detergent

The invention discloses a synthetic method of a lubricating oil detergent. The synthesis method is characterized by comprising the following steps: mixing sulfurized alkylphenate with a solvent to form a uniform mixture; a peroxide is added to the uniform mixture, and the addition amount of the peroxide is 0.005-0.20 parts by mass relative to 1 part by mass of the sulfurized alkylphenate; reacting for 3-8 hours at the temperature of 50-200 DEG C; and after the reaction is finished, filtering and distilling to remove the solvent to obtain the sulfurized alkylphenol salt with reduced content of free alkylphenol. The lubricating oil detergent obtained by the synthetic method of the lubricating oil detergent is low in free alkylphenol content, and the product performance is improved.
Owner:XINXIANG RICHFUL LUBE ADDITIVE CO LTD

Hybrid vehicle engine lubricating oil composition and method of making same

The application provides a hybrid vehicle engine lubricating oil composition and a preparation method thereof.The hybrid vehicle engine lubricating oil composition comprises the following components: (A) a benzotriazole derivative; (B) a composite antioxidant comprising an alkylated diphenylamine antioxidant and a sulfide phenolic antioxidant; (C) a polyisobutylene succinimide ashless dispersant; (D) a sulfonate and / or a sulfated alkyl phenate; (E) a zinc dialkyldithiophosphate; (F) a composite friction modifier comprising an oil-soluble organic molybdenum friction modifier and an ashless friction modifier; (G) a phosphite type extreme pressure antiwear agent; and (H) a major amount of a lubricating oil base oil; wherein the structure of the benzotriazole derivative is shown in formula (I): wherein the definitions of the groups are shown in the specification.The hybrid vehicle engine lubricating oil composition has excellent antioxidant performance, corrosion resistance and rust resistance, and good emulsion retention performance and wear resistance.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Scalable synthesis of anabaenopeptins

A compound having formula I that is useful for preparing an anabaenopeptin or derivatives thereof is provided:or a salt thereof and / or stereoisomers thereof and / or isotopic variations thereof, wherein: X1, X2, X3, and X4 are alkyl, aryl, hydroxyl, alkyl phenyl, alkyl phenol, and benzyl groups; and R1, R2, R3, R4, and R5 are H or C1-10 alkyl, wherein at least one of X1, X2, X3, and X4 is alkyl phenol, with the proviso that at least one of X1, X2, X3, and X4 are alkyl phenol.
Owner:WAYNE STATE UNIV

Cylinder oil composition suitable for methanol fuel ship and preparation method of cylinder oil composition

The invention provides a cylinder oil composition suitable for a methanol fuel ship and a preparation method of the cylinder oil composition, and particularly relates to the technical field of lubricating oil. The cylinder oil composition suitable for the methanol fuel ship comprises the following components in percentage by mass: 5.0%-20% of a clearing agent, 1.0%-8.0% of an ashless dispersant, 0.5%-1.5% of a composite antioxidant, 0.5%-3% of an anti-wear agent, 0.01%-1% of a metal deactivator and the balance of base oil, the detergent is composed of high-base-number synthetic calcium sulfonate, low-base-number synthetic calcium sulfonate, high-base-number calcium boride sulfonate and high-base-number sulfurized calcium alkyl phenolate. According to the cylinder oil composition for the methanol fuel ship, the scheme of the purification dispersant is optimized, and a plurality of components such as the metal deactivator are introduced for combination, so that the obtained cylinder oil composition for the methanol fuel ship improves the wear resistance and the corrosion resistance of an oil product when the oil product is polluted by methanol and formic acid, and can meet the performance requirements when a marine two-stroke engine uses methanol fuel.
Owner:PETROCHINA CO LTD

Method for rich production of methylphenol through transalkylation

The invention discloses a method for producing methylphenol through transalkylation, which comprises the following steps: enabling a raw material to pass through a reactor bed filled with a transalkylation catalyst, and reacting at 300-480 DEG C to obtain the methylphenol, the raw material being a mixture of phenol and C8 + heavy alkylphenol. Or a mixture of phenol and C8 + heavy alkylphenol is used as a raw material, and a phenol / C8 + heavy phenol transalkylation reaction is carried out in the presence of a transalkylation catalyst in the presence of hydrogen to obtain the methylphenol. According to the method, phenol is used as a methyl acceptor, a product generated through transalkylation reaction is mainly methyl phenol with o-cresol as a main component, the added value of the product is increased, and the integrating degree with the crude phenol refining industry is higher. The mass ratio of phenol to C8 + heavy phenol in the feed can reach 50: 50, and the heavy phenol treatment capacity, the conversion rate and the total selectivity of methylphenol are high.
Owner:SHAANXI COAL & CHEM TECH INST

Phosphogypsum reverse flotation collecting agent and preparation method and application thereof

The invention provides an ardealite reverse flotation collecting agent and a preparation method and application thereof, and belongs to the field of phosphorus chemical solid waste treatment, the ardealite reverse flotation collecting agent comprises the following components by weight: 40-60 parts of alkyl ammonium bromide, 10-20 parts of alkylphenol polyoxyethylene ether, 10-20 parts of non-polar hydrocarbon oil, 10-15 parts of vinyl trimethoxy silane, and 10-20 parts of a polysaccharide agent. Through the reasonable proportion of the components, the separation effect of CaSO4. 2H2O, silicon dioxide, black organic carbon and other impurities is remarkably improved, the whiteness and purity of CaSO4. 2H2O are improved, the collecting agent has the advantages of being high in flotation efficiency, low in dosage, high in collecting capacity and the like, and meanwhile the collecting agent is simple and feasible in preparation method, low in cost and high in industrial application value.
Owner:WUHAN INST OF TECH

Use of an additive composition to reduce emissions from diesel vehicles

The subject of the present invention is the use, for reducing the emissions of nitrogen oxides and at least one type of polluting agent chosen from carbon monoxide and unburned hydrocarbons during the combustion of a liquid fuel in a compression-ignition internal combustion engine, of an additive composition comprising: (i) one or more additives chosen from compounds having in their structure at least one alkyl-phenol group; and (ii) one or more cetane index-improving additives; in which the mass ratio of the quantity of additive(s) (i) to the quantity of additive(s) (ii) is in the range from 1:3 to 3:1.The present invention also relates to a method for reducing emissions of nitrogen oxides and at least one type of polluting agent chosen from carbon monoxide and unburned hydrocarbons during the combustion of a liquid fuel in a compression-ignition internal combustion engine, using this additive composition.
Owner:TOTALENERGIES ONETECH

Method for synthesizing biphenol in water phase

The invention discloses a method for synthesizing biphenol in a water phase, belongs to the technical field of fine chemical engineering, and aims to solve the explosion safety risk caused by the use of an organic solvent in the conventional alkylphenol oxidative coupling process. According to the method, a phase transfer catalysis system composed of boric acid, Tween-80, dodecylphenol polyoxyethylene ether and copper chloride is adopted, water serves as a solvent, oxygen or air is introduced at the temperature of 60-90 DEG C, alkyl phenol is subjected to an oxidative coupling reaction to generate alkyl biquinone, and then biphenol is prepared through hydrogenation reduction. The method thoroughly avoids the use of an organic solvent, eliminates the hidden danger of explosion from the source, and has the advantages of high intrinsic safety, environmental friendliness and low cost.
Owner:JUYE BAILIN CHEM CO LTD

A high-salt-resistant and shear-resistant double-network fracturing fluid thickening agent and a preparation method thereof

The application relates to a high-salt-resistant and shear-resistant double-network fracturing fluid thickening agent and a preparation method thereof, relates to the technical field of oilfield chemistry and fine chemistry, and comprises the following steps: crosslinking and polymerizing non-ionic monomers and a crosslinking agent under the action of an initiator to form a first network structure, and utilizing a flexible polymer filled in the first network structure to form a second network structure. The flexible polymer is alkyl phenol polyoxyethylene ether. The flexible chain in the alkyl phenol polyoxyethylene ether structure still retains the function of a "sacrificial bond", can absorb the damage of high shear and high temperature to the rigid network structure, and enables the system to still have good resistance performance under the condition of no metal crosslinking. Meanwhile, due to the existence of benzene rings in the alkyl phenol polyoxyethylene ether structure, the pi-pi stacking effect can be increased on the basis, the intermolecular force is strengthened, and the resistance of the double-network structure is further improved. The double-network fracturing fluid thickening agent is simple in preparation, excellent in performance and high in practical value.
Owner:SOUTHWEST PETROLEUM UNIV

Blocked isocyanate prepolymer for thermally conductive composition

Thermally conductive compositions may include an isocyanate component, an isocyanate-reactive component and one or more thermally conductive fillers present in one or more of the isocyanate component and the isocyanate-reactive component. The isocyanate component includes a blocked isocyanate prepolymer formed from a reaction of a first prepolymer, prepared from the reaction of one or more polyols comprising an amine-initiated polyol and a polyisocyanate, and an alkyl phenol. The isocyanate-reactive component includes one or more polyetheramine.
Owner:DOW GLOBAL TECHNOLOGIES LLC

Hydrogen fuel engine oil complex additive composition and hydrogen fuel engine oil composition

The application discloses a hydrogen fuel engine oil composite additive composition, which comprises 3.0-5.0% high-alkali-value magnesium sulfonate, 12.0-20.0% low-alkali-value calcium sulfonate, 3.0-4.0% high-alkali-value calcium sulfide alkyl phenol, 2.0-5.0% amine type antioxidant, 2.0-5.0% phenol type antioxidant, 2.0-5.0% alpha-naphthylamine, 1.5-3.0% dibutyl dithiocarbamic acid ester, 1.5-3.0% anti-wear agent, 0.2-0.5% fatty amide, and the rest is ashless dispersant. The application further discloses a hydrogen fuel engine oil composition, which comprises 14.4-15.5% composite additive composition, 7.0-9.0% tackifier, 0.2-0.5% pour point depressant, and the rest is base oil. The composite additive improves the demulsification performance of the hydrogen fuel engine oil under high-temperature and high-pressure conditions, and further improves the water separation property and other comprehensive use performances of the oil product.
Owner:PETROCHINA CO LTD

Grinding aids, methods of making and using the same

The application relates to a grinding aid and a preparation method and application thereof, the grinding aid comprising a to-be-treated solution and a surfactant; the to-be-treated solution contains sodium acrylate, sodium hydroxide and sodium p-toluenesulfonate; and the surfactant comprises at least one of sodium dodecyl benzene sulfonate, sodium lignosulfonate, allyl polyether, fatty alcohol polyoxyethylene ether, alkyl phenol polyoxyethylene ether and nonyl phenol polyoxyethylene ether. The specific surfactant in the grinding aid cooperates with the to-be-treated solution, synergistically improves the interface wetting performance of the material, weakens the powder aggregation phenomenon, reduces the surface energy, and further improves the dispersibility of the material and the gradation and fluidity of the material.
Owner:YUEYANG CHANGDE ENVIRONMENTAL TECH CO LTD

Lubricating grease and preparation method thereof

The invention provides lubricating grease and a preparation method thereof. The lubricating grease comprises an alkyl phosphonate compound, an antirust agent, a thickening agent and a main amount of lubricating base oil, and the preparation method of the alkyl phosphonate compound comprises the following steps: reacting alkyl phosphonate with alkyl alcohol and / or alkylphenol in the presence of an imine catalyst, and collecting the product. The lubricating grease provided by the invention has excellent extreme pressure property, wear resistance, mechanical stability and corrosion resistance, and is suitable for servo systems of various mechanical equipment.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

An activator for improving the adhesion of yarn to rubber and use thereof

The present application belongs to the field of activators, and particularly relates to an activator for improving the adhesion of yarn and rubber and the use thereof. The activator is composed of 38-68wt% component A: alkyl silane, 24.2-41.2wt% component B: fatty acid polyoxyethylene ester, 5.5-13wt% component C: triethylene glycol dimethyl ether and 0.6-4.7wt% component D: alkyl phenol polyoxyethylene ether. The activator of the present application can improve the adhesion of yarn and rubber.
Owner:ZHEJIANG HAILIDE NEW MATERIAL +1

A pollution-free agent for effectively preventing and controlling branch blight of indigofera and a prevention and treatment method and application thereof

The application discloses a kind of effectively prevent and control Gang Mei branch blight of nuisance pesticide and prevention and control method and application, specifically including the following components: methyl jasmonate 100-150mg / L, table 24-rape sprout lactone 0.01-0.5mg / L, 6-benzyl adenine 20-50mg / L, triacontanol 0.5-1mg / L, chitosan 300-600mg / L, organic silicon 100-400mg / L, phenylalanine 5-50mg / L, mannitol 5-30mg / L, betaine 50-300mg / L, 2 hydrated calcium chloride 150mg / L, eugenol 250mg / L, isopropenyl-5-chlorobenzimidazolone 0.02-0.05mg / L, alkyl phenol formaldehyde resin polyvinyl ether 800-1000mg / L, ethanol 10000-30000mg / L.The application is compounded by plant growth regulator, inorganic matter, amino acid and other components, induces Gang Mei planting seedling, so that it systematically obtains resistance, enhances defense, inhibits Gang Mei branch blight, stabilizes cell membrane and improves the ability of anti-abiotic adversity, and also helps to improve the content of Gang Mei medicinal component secondary metabolite.The pesticide prepared by the application does not contain pesticide chemical component, is safe, non-polluting, simple in use method, and can effectively prevent and control Gang Mei branch blight, improve Gang Mei yield, quality and medicinal value.
Owner:江西环境工程职业学院

Natural gas engine oil and composite additive composition thereof

The invention provides natural gas engine oil and a composite additive composition thereof, and the composite additive composition comprises: a detergent comprising magnesium sulfonate, calcium sulfonate and sulfurized calcium alkyl phenolate; the antioxidant comprises an amine type antioxidant and a phenol type antioxidant; the anti-wear agent is prepared from carbamic acid ester, phosphoric acid lauryl amine salt and tricresyl ester; a dispersant; the base number of the magnesium sulfonate is 395 to 420 mgKOH / g, the base number of the calcium sulfonate is 20 to 35 mgKOH / g, and the base number of the sulfurized calcium alkyl phenolate is 130 to 160 mgKOH / g. According to the natural gas engine oil, the sulfate ash content of the natural gas engine oil can be reduced, and the natural gas engine oil has relatively good oxidation resistance, detergency, dispersity, wear resistance and the like.
Owner:PETROCHINA CO LTD

Transfer adhesive composition for aluminum layer transfer and preparation process

The application discloses a transfer adhesive composition for aluminum layer transfer and a preparation process, relates to the field of adhesives, and comprises the following steps: dispersing 200-500 parts of acrylic modified water-based epoxy resin and OP-10 (alkyl phenol polyoxyethylene ether) for the first time at 10-30 DEG C, then adding 100-500 parts of imidazole blocked water-based polyurethane dispersion and a defoaming agent for the second time for dispersion; and finally adding an auxiliary agent, and obtaining a finished product after uniform dispersion. The application controls the dispersion process and pre-treats the imidazole blocked water-based polyurethane dispersion, and the imidazole blocked water-based polyurethane dispersion does not separate for 12 months at 40 DEG C, so that the stability of the adhesive is greatly improved, the adhesive has excellent properties such as high bonding force, folding resistance and high gloss, the transfer pattern has improved tensile resistance, and the adhesive has anti-glare ability.
Owner:JIANGXI ZHEWEI NEW MATERIALS TECH CO LTD

Method for modifying mesoporous SiO2 materials

The application discloses a modification method of mesoporous SiO2 material. The specific steps are as follows: the terminal hydroxyl group of alkyl phenol polyoxyethylene ether is oxidized into a carboxyl group by KMnO4, and then the carboxyl group is chlorinated into an acyl chloride by SOCl2; the surface hydroxyl group of the mesoporous SiO2 material is hydrophobically modified by using gamma-aminopropyl triethoxysilane to obtain an amino structure at the gamma position; an amide bond is constructed, and oil-water amphiphilic modification is completed. The alkyl phenol polyoxyethylene ether is octyl phenol polyoxyethylene ether, nonyl phenol polyoxyethylene ether or dodecyl polyoxyethylene ether, and the polymerization degree of the polyoxyethylene chain is 8-20. The modification method is suitable for nano fumed silica, monodisperse mesoporous SiO2 microspheres, mesoporous SiO2 molecular sieves and the like. Compared with unmodified or conventionally hydrophobically modified mesoporous SiO2 materials, the mesoporous SiO2 material modified according to the above method has hydrophilicity and lipophilicity, and can be well dispersed in water and organic solvents; when used as a drug carrier material, the mesoporous SiO2 material can simultaneously realize the loading and effective release of water-soluble and fat-soluble drugs.
Owner:RES INST OF CHEM DEFENSE PLA ACAD OF MILITARY SCI

Novel lubricating oil detergent, preparation method thereof and lubricating oil composition

PendingCN121914792ALow free phenol contentImprove anti-wear performanceOrganic compound preparationCarboxylic acid esters preparationButanedioic acidAdipic acid
The invention provides a novel lubricating oil detergent, a preparation method thereof and a lubricating oil composition. The preparation method comprises the following steps: mixing alkylphenol, base oil, a vulcanizing agent and a first part of calcium source, adding a first part of accelerant, and carrying out vulcanization reaction; then adding cyclic anhydride to carry out esterification reaction; and adding a second part of accelerant and a second part of calcium source, then carrying out carbonation reaction, and purifying the product after the reaction is finished to obtain the novel lubricating oil detergent. Wherein the cyclic anhydride is selected from one or a combination of more than two of maleic anhydride, succinic anhydride, adipic anhydride and phthalic anhydride; the addition amount of the cyclic anhydride is 0.01-0.25 part by weight based on 1 part by weight of alkylphenol. The cyclic anhydride participates in the reaction, so that the content of free phenol in the product can be reduced, and the wear resistance of the product can be improved. The novel lubricating oil detergent provided by the invention has no free phenol residue, and has more excellent detergency, oxidation resistance, wear resistance and the like.
Owner:XINXIANG RICHFUL LUBE ADDITIVE CO LTD

A hindered phenolic antioxidant and a method for preparing and using the same

The application relates to a hindered phenolic antioxidant and a preparation method and application thereof, which comprises the following steps: obtaining a raw material mixed solution by drying alkyl phenol and cycloalkadiene, adding a catalyst to obtain a preliminary polymerization product, further carrying out alkylation reaction with isobutene, and obtaining a final product after alkali washing, decoloring and gas stripping of the reaction product. The antioxidant prepared by the application has high activity, long heat-resistant stable time, uniform molecular weight distribution and light color, can be widely applied to ABS glue, tires, plastics and other fields, and has a good application prospect.
Owner:HENGHE MATERIALS & SCI TECH CO LTD

Treatment of iron sulfide-containing compositions, uses thereof and methods of treating emulsified crude oil

The present application relates to the field of petroleum chemical industry, discloses a composition for treating iron sulfide and application thereof and a method for treating emulsified crude oil containing iron sulfide solid particles.The composition contains the following components which are independently stored or mixedly stored: a demulsifier, a bio-based wetting agent; wherein the demulsifier is a polyether imidazoline compound; the bio-based wetting agent is a sophorolipid ether; the content mass ratio of the demulsifier to the bio-based wetting agent is 1:0.5-5; and the polyether imidazoline compound is an alkyl phenol formaldehyde resin polyether imidazoline.The composition can effectively remove the iron sulfide solid particles in the emulsified crude oil, and the bio-based wetting agent has better biodegradability.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Coating composition for electromagnetic steel sheet, electromagnetic steel sheet, laminated iron core, and rotating electrical machine

The electromagnetic steel sheet used in the laminated core is an electromagnetic steel sheet having an insulating coating (3) formed by applying a coating composition for an electromagnetic steel sheet on the surface of a base steel sheet (2), wherein the coating composition for the electromagnetic steel sheet is mixed with an epoxy resin, a first curing agent composed of an alkylphenol, and a second curing agent composed of either or both of a phenol resol resin and a phenol novolac resin in a specific ratio.
Owner:NIPPON STEEL CORPORATION

Additives with high sulfurization for lubricating oil compositions

The present disclosure provides a method for preparing a sulfurized alkyl phenate product to achieve a high sulfurization ratio of sulfurized alkyl phenate to unsulfurized alkyl phenate / phenol in the context of a neutralized and optionally overbased additive.
Owner:AFTON CHEMICAL CORPORATION

Self-crosslinking flame-retardant ethylene propylene rubber self-adhesive tape and preparation method thereof

The invention discloses a self-crosslinkable flame-retardant ethylene propylene rubber self-adhesive tape and a preparation method thereof. The self-crosslinkable flame-retardant ethylene propylene rubber self-adhesive tape comprises the following raw material components in parts by mass: 60-75 parts of ethylene propylene diene monomer, 10-30 parts of halogenated butyl rubber, 10-50 parts of a heat-resistant polymer, 3-12 parts of tackifying resin, 5-30 parts of operating oil, 100-150 parts of a flame-retardant filler and 6-15 parts of an auxiliary agent. The tackifying resin comprises one or more of alkyl phenolic resin and halogenated modified resin thereof, and aralkyl phenolic resin and halogenated modified resin thereof. The prepared adhesive tape is convenient to install, resin containing active groups is selected as tackifying resin for raw material components, on the basis that the adhesive tape has good viscosity, the adhesive tape can be slowly cross-linked in the using process (90 DEG C or above), and therefore the heat resistance and the aging resistance are improved; meanwhile, the heat-resistant polymer is added, so that the heat resistance in the preparation and use processes can be ensured; and a flame-retardant filler matched with the formula system is further added, so that the system has good flame retardance.
Owner:SHENZHEN WOER HEAT SHRINKABLE MATERIAL

Low-oil high-adhesion ultra-thin EPDM butt joint rubber sheet and preparation method thereof

PendingCN122647826AElastomerPolymer science
The present application relates to the technical field of rubber sealing material, in particular to a low-oil high-adhesion ultra-thin EPDM butt joint rubber sheet and a preparation method thereof.The low-oil high-adhesion ultra-thin EPDM butt joint rubber sheet is prepared from the following raw materials in parts by mass: 67-73 parts of low-Mooney-viscosity EPDM, 57-63 parts of high-Mooney-viscosity EPDM, 77-83 parts of carbon black, 10-20 parts of paraffin oil, 4-6 parts of active zinc oxide, 0.4-0.6 parts of stearic acid, 0.8-1.2 parts of flow aid, 4-6 parts of alkyl phenolic tackifying resin, 18-22 parts of thermoplastic elastomer alloy, 0.8-1.2 parts of vulcanizing agent, 3.5-4.5 parts of accelerator, 0.1-0.3 parts of scorch retarder, and 5-7 parts of calcium oxide.The low-oil high-adhesion ultra-thin EPDM butt joint rubber sheet provided by the present application has a joint bonding force of more than 500 N when the thickness is 0.2-0.3 mm, and realizes both ultra-thin molding and high bonding force.
Owner:FOSHAN MEIRUN RUBBER TECH DEV CO LTD

Composition for treating waste plastic oil, application of composition and method for removing impurities in waste plastic oil

The invention relates to the field of waste plastic oil recycling, and discloses a composition for treating waste plastic oil, application of the composition and a method for removing impurities in the waste plastic oil. Based on the total amount of the composition, the composition contains the following components which are stored independently or stored in a mixed manner: 30-45wt% of a carboxylic acid polymer, 5-10wt% of hydroximic acid, 5-20wt% of a polyether imidazoline compound and 5-10wt% of a demulsifying agent, wherein the carboxylic acid polymer, the hydroximic acid, the polyether imidazoline compound and the demulsifying agent are stored in a mixed manner; wherein the polyether imidazoline compound is alkyl phenolic resin polyether imidazoline. When the composition provided by the invention is used for treating waste plastic oil, the removal rates of iron and calcium are respectively more than 58% and more than 65%, and the removal rate of chlorine is more than 40% and can reach 45.5% at most, so that the composition has better demetallization and dechlorination effects. In addition, under the preferable condition, the reaction conditions are more mild.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Additive capable of effectively improving cleanliness of internal combustion engine oil

The invention relates to the technical field of diesel engine oil additives, in particular to an additive capable of effectively improving the cleanliness of internal combustion engine oil. The additive is prepared from macromolecular succinimide, monoalkenyl succinimide, high-base-number synthetic calcium sulfonate and sulfurized calcium alkyl phenolate according to the weight ratio of (5 to 7) to (1.6 to 2.3) to (1 to 2) to (1 to 2). The diesel engine oil additive provided by the invention can balance the base number retention capability, the detergency and dispersibility and the sulfate ash content level of an oil product, so that the ash content does not exceed the standard while the base number level and the detergency and dispersibility of engine oil are met.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1