1389 results about "Cresol" patented technology

There is disclosed a bottom resist layer composition for a multilayer-resist film used in lithography which comprises, at least, a polymer having a repeating unit represented by the following general formula (1). Thereby, there can be provided a bottom resist layer composition which shows an antireflection effect against an exposure light by combining with an intermediate resist layer having an antireflection effect if necessary, has a higher etching resistance during etching a substrate than polyhydroxy styrene, cresol novolac resin, etc., has a high poisoning-resistant effect, and is suitable for using in a multilayer-resist process like a bilayer resist process or a trilayer resist process.

The present invention relates to agglomerated zeolitic adsorbents based on zeolite X with an Si/Al ratio such that 1.15<Si/Al≦1.5, at least 90% of the exchangeable cationic sites of the zeolite X of which are occupied either by barium ions alone or by barium ions and potassium ions whose Dubinin volume is greater than or equal to 0.240 cm³/g.

They are obtained by agglomerating zeolite powder with a binder, followed by the zeolitization of the binder, the exchange of the ions of the zeolite by barium ions (and potassium ions) and the activation of the adsorbents thus exchanged.

These adsorbents are particularly suited to the adsorption of the para-xylene present in C₈ aromatic hydrocarbon fractions in the liquid phase in processes of simulated moving bed type but also to the separation of sugars, polyhydric alcohols, cresols or substituted toluene isomers.

The present invention provides a rubber composition with superior properties with respect to processability, low fuel consumption, complex modulus, and durability, and tires prepared by using the rubber composition. The rubber composition of the present invention comprises: 2 to 2.9 parts by weight of (B) sulfur, 0.6 to 10 parts by weight of (C) at least one compound selected from the group consisting of a cresol resin, a resorcin condensate, and a modified resorcin condensate, and 10 to 55 parts by weight of (D) a carbon black and/or silica, based on 100 parts by weight of (A) a rubber component comprising a natural rubber and/or isoprene rubber and at least two kinds of synthetic rubbers selected from the group consisting of butadiene rubber, modified butadiene rubber, styrene-butadiene rubber, and modified styrene-butadiene rubber. The tire of the present invention is prepared by using the rubber composition.

The invention discloses a high friction composite brake shoe for a railway wagon and a manufacturing method thereof. The composite brake shoe comprises: a steel back and a brake shoe body which is fixed on the steel back, wherein, the brake shoe body is prepared by materials which are synthesized by various components with the following weight ratio: 8 to13 parts of nitrile butadiene rubber, 2 to10 parts of styrene butasiene rubber, 5 to10 parts of cresol modified A-stage phenolic resin, 15 to 30 parts of steel fiber, 10 to 15 parts of magnesium oxide, 5 to 10 parts of calcined petroleum coke, 2 to 5 parts of silicon carbide, 10 to25 parts of mineral fiber, 5 to 10 parts of calcium hydride, 10 to 20 parts of barium sulfate, 5 to 10 parts of graphite, 1 to 5 parts of molybdenum disulfide, 1 to 5 parts of carbon black, 1 to 3 parts of sulfur and 1 to 3 parts of enhancer. The brake shoe can be used in the railway heavy-duty high-speed wagon and has stable friction performance and better wear resistance; the brake shoe can effectively inhibit the phenomena of metal inlay, cracks, dropping blocks and the like and reduce the damages on wheels; and the brake shoe is characterized by better impact resistance performance and good weatherability.

Described are synergistic antimicrobial-fragrance compositions including broad spectrum antimicrobial compositions containing salicylaldehyde and at least one organoleptically-compatible antimicrobial synergism cofactor substance. The weight ratio range of salicylaldehyde:synergism cofactors substance is from 1:10 up to 10:1. The cofactor substance is such that the degree of synergism of the resultant mixture is defined according to the IFF Antimicrobial Synergism Test wherein the difference between the actual and expected antimicrobial values of the mixture is greater than or equal to a multiple of (i) 0.05 and (ii) the expected antimicrobial value of the mixture. Cofactor substances include phenolics such as cresol, caravacrol and thymol; ethyl vanillin; benzyl alcohol; indol; beta-orcinol; and terpinenol-4. Microorganisms against which the synergistic compositions are effective include:Escherichia coli;Enterococcus hirae;Pseudomonas aeruginosa;Staphylococcus aureus; andSaccharomyces cerevisae.The compositions have application in all-purpose cleaning compositions, gel-type toilet rim articles, liquid-type toilet rim articles, personal shower cleaning compositions, and body and hair care products including shower gel compositions, shampoo compositions and foam bath compositions.

The present invention relates to reinforced polyamide molding materials with high notch impact strengths, comprising low viscous polyamides and flat glass fibers as a reinforcing medium, characterized in a polyamide matrix, comprising the following components: (A) 0 to 60 wt.-% of at least one aliphatic, partly crystalline polyamide with a solution viscosity, measured in m-cresol (0.5 wt-%), of η_rel less than 1.9, (B) 0 to 60 wt.-% of at least one amorphous or microcrystalline polyamide based on aliphatic, cycloaliphatic or aromatic diamines, dicarboxylic acids, lactams and/or aminocarboxylic acids, preferably with 6 to 36 carbon atoms, or a mixture of such homopolyamides and/or copolyamides, wherein the components (A) and (B) fulfill the condition: (A)+(B)=20 to 60 wt.-% and that, in the case of a mixture of components (A) and (B), at least 50 weight parts aliphatic blocks (A) are present in the mixture, and a filler component, comprising: (C) 40 to 80 wt.-% flat glass fibers with elongated shape, and the glass fibers have a non-circular cross-sectional area and a size ratio of the main cross-sectional axis to the secondary cross-sectional axis of between 2 to 5, particularly between 3 and 4, and (D) 0 to 40 wt.-% particle like or layer like fillers, with the prerequisite that carbon fibers are excluded, wherein the polyamide molding materials optionally comprise up to 5 wt.-% of further usual additives and auxiliary agents (E), and wherein the weight of the components (A) to (E) sums up to 100%.

The invention provides a novel empoasca vitis gothe attractant formula and application of the novel empoasca vitis gothe attractant. The application method comprises the following steps: mainly preparing the attractant by the following components including tea tree volatile matters trans-2-hexenal, cis-3-hexene-1-ol and cis-3-hexenyl acetate, geraniol, linalool and trans-ocimene as components of the attractant and an additional antioxidant 2, 6-butylated hydroxytoluene (BHT) in a weight ratio of (0.5-5.0):(10-20):(1.0-15):(5.0-15):(30-40):(1.0-15):(1.0-10); loading the attractant on a silicone rubber head to prepare a lure; and embedding the lure on a yellow sticky colored card to form a trap of empoasca vitis gothe. Imago of empoasca vitis gothe is trapped in a stable stage of trapping, preventing and treating the empoasca vitis gothe, so that the quantity of the empoasca vitis gothe can be effectively restricted. Researches show that the lure with the novel empoasca vitis gothe attractant can obviously enhance the trapping and killing effects of a single yellow sticky colored card, the lasting trapping capacity of the trap to the empoasca vitis gothe can be remarkably improved, the service period of the trap is remarkably prolonged, and use of chemical pesticides in the tea garden is remarkably reduced and cancelled. The attractant applied to the tea garden has the advantages of convenience in use, safety, greenness and no pollution and meets the national green prevention and control principle, thereby accelerating the industrial development of organic tea gardens.

The invention relates to an ester type fire-resistant hydraulic fluid. The hydraulic fluid comprises the following raw materials by weight percent: 95-99% of base oil, 1.0-5.0% of diphenol propane, 0.005% of dimethylsilicone fluid or dimethylsilicone grease, 0.05% of tricresyl phosphate, 0.1% of benzotriazole, 100 parts per million (PPM) demulsifying agent T1001 or LZ5957 and 0.2-0.3% of triazole derivative, thiadiazole derivative, N-salicylidene ethylamine, N, N'-bis(salicylidene)ethylenediamine, N, N'-bis(salicylidene)propylene diamine or ethylenediamine tetraacetic acid. A preparation method of the ester type fire-resistant hydraulic fluid comprises the following steps of sufficiently and evenly stirring various materials at room temperature according to a formula, and then filtering. The ester type fire-resistant hydraulic fluid has the beneficial effects that the high temperature use performance of the product is greatly improved, the service life of a hydraulic system and the oil changing period of oils are prolonged, and the ester type fire-resistant hydraulic fluid has a good flame-retardant effect and is safe to use. The preparation method has the advantages that operation is convenient, technology and equipment are simple, energy consumption is low, cost is low, and the like.

New polymers and new anti-reflective compositions containing such polymers are provided. The compositions comprise a polymer (e.g., epoxy cresol novolac resins) bonded with a chromophore (4-hydroxybenzoic acid, trimellitic anhydride). The inventive compositions can be applied to substrates (e.g., silicon wafers) to form anti-reflective coating layers having high etch rates which minimize or prevent reflection during subsequent photoresist exposure and developing.

The invention relates to a preparation method of an aliphatic high range water reducer applying industry byproduct and the application thereof, which belongs to the field of concrete water reducer. The invention uses the industry byproduct in production of sulfonation-process phenol or the byproduct (Na2SO3 content is 60-85percent) in production of p-cresol and sodium hydrosulfite to produce the aliphatic high range water reducer and takes acetone, formaldehyde, industry byproduct, sulphite or sodium pyrosulfite as raw materials and then sulfonation and condensation reactions are carried out in aqueous medium, the reactant weight ratio is acetone: formaldehyde: sulphite plus industry byproduct: water is equal to 1:2.5-4.5:1.5-2.6:4.0-6.0, the mass concentration of the condensation compound obtained is 30-42 percent, and the viscosity thereof is 20-100m.Pa.S. The product performance of the invention is similar to the common product, but the cost is reduced by 10-20 percent. The invention has environmental protection and waste utilization, can be applied to preparation of various concrete members and production of ready mixed concrete and has good industrialization prospect.

The invention provides a heat-resistant phenolic resin produced by taking cresol residues as a main raw material. The heat-resistant phenolic resin is obtained after a series of chemical reaction through utilizing the active functional groups of various compounds in the cresol residues. A heat-resistant anti-corrosion paint is produced by taking the heat-resistant phenolic resin as a main film forming matter and compounding with glass flakes and other lamellar inorganic mineral materials, has the advantages of high drying speed, good adhesion, high hardness, good heat resistance, strong water resistance and solvent resistance and the like, and is suitable for the heat-resistant anticorrosion coating of the surfaces of chemical mechanical equipment, pipelines, flues, storage tanks, heat dissipation devices and other devices. According to the heat-resistant phenolic resin, the cresol residues are comprehensively utilized, therefore, the pollution problem of the cresol residues is fundamentally solved, and the effects of comprehensive treatment and waste material recycle are realized; and moreover, new paint products are increased, and the application field of the phenolic paint is broadened.

Disclosed herein are highly stable styrenated phenolic compositions that are liquids at room temperature, and polymer articles and lubricant compositions containing such styrenated phenolic compositions. Also disclosed are processes for forming such styrenated phenolic compositions, which processes afford distyrenated phenolics assaying at 70% minimum by total GC area, comprising reacting styrene with one or more phenolics, e.g., at least one of phenol, p-cresol and/or o-cresol, in the presence of an acid catalyst, preferably a sulfonic acid catalyst, at elevated temperature, wherein the resulting product mixture comprises one or more monostyrenated phenolics, one or more distyrenated phenolics, and one or more tristyrenated phenolics.

The invention discloses a disinfectant used in the breeding industry. The disinfectant comprises the components in percent by volume: 20-30mL of a sodium hydroxide solution with the mass percent of 30-45 percent, 3-7mL of peroxyacetic acid, 5-9mL of chloramine, 12-17mL of a sodium bicarbonate solution with the mass percent of 20-45 percent, 4-12mL of absolute ethyl alcohol and 12-19mL of a saponated cresol solution. All components are stirred for a certain time at a normal temperature and a normal pressure, and sub-packaged and plastic-packaged to obtain the disinfectant. By adopting the mode, according to the disinfectant used in the breeding industry, disclosed by the invention, the components adopted by the disinfectant are low in price, so that the total cost of the disinfectant is reduced, the disinfection effect is good, a good medication effect can be achieved by only consuming less disinfectant, the medication efficiency is high, toxic and hazardous effects on bred livestock and fishes are avoided, and no toxin accumulation is caused.

The present invention relates to novel monooxygenase nucleic acids and polypeptides created using mutagenesis, DNA shuffling, or both, in a single iteration or multiple iterations, and methods for their creation and use. The monooxygenase enzymes of the present disclosure have particular utility as biocatalysts in industrial chemical redox reactions, such as the oxidation of aromatic hydrocarbons, for example, toluene, benzene, or nitrobenzene, into industrially desirable products. The systems and processes of the present invention are especially useful for the coupled synthesis and recovery of catechols, methylcatechols, resorcinols, methylresorcinols, hydroquinones, methylhydroquinones, hydroxybenzenes, cresols, nitrobenzenes, and nitrohydroxyquinones.

The invention discloses a method for preparing a polymeric hindered phenol antioxidant 616, which pertains to the chemical technology field. Under normal pressure in an acid and alkali resistant container at a temperature of 60 DEG C to 120 DEG C and under the catalysis of a boron trifluoride etherate complex, dicyclopentadiene is dripped into cresol and dicyclopentadiene to carry out a condensation reaction to generate a petroleum resin; then at the temperature of 60 DEG C to 100 DEG C, a benzene solvent is added and under the catalysis of concentrated sulphuric acid, isobutene is added to carry out an alkylation so as to generate an antioxidant 616; then at the temperature of 70 DEG C to 80 DEG C, activated clay is added and stirred for 1h to 2h, decatalyzation and decoloration are carried out, a filter cake is filtered and recovered, and decompression is conducted and the benzene solvent is recovered so as to obtain a solid; and the solid is ground into a white powder, which is the product. The method can reduce equipment corrosion and environmental protection and the product obtained has the advantages of being light in color and having high quality and wide application range and the like.

The invention relates to a synthesis method of a paracresol-dicyclopentadiene isobutylation resin antioxidant, belonging to the technical field of chemical synthesis. The synthesis method comprises the following steps of: carrying out a condensation reaction on paracresol and dicyclopentadiene to produce phenolic type petroleum resin; then, carrying out an alkylation reaction on the phenolic type petroleum resin and isobutene; and finally, neutralizing by using sodium carbonate, and distilling to obtain the paracresol-dicyclopentadiene isobutylation resin antioxidant. The paracresol-dicyclopentadiene isobutylation resin antioxidant is still prepared by using the paracresol, the dicyclopentadiene and the isobutene as raw materials through the two steps of reactions of condensation and alkylation, but the total yield of the product can reach 93-95% through a special process.

A dual catalyst system thermoplastic phenolic resin preparation method comprises the steps of proportioning, refluxing and reacting, and drying; the raw materials comprises phenol or m-cresol and aldehydes compound, water, organic acid or inorganic acid and bivalent acetate in a molar ratio of 1:0.5-0.9:0-3.0:0.001-0.040:0.001-0.020; wherein, acetate is used as first catalyst and organic acid or inorganic acid is used as second catalyst in reaction process. The invention adopts phenolic aldehyde addition-condensation reaction in dual catalyst system to prepare the thermoplastic phenolic resin; the method has the advantage of rapid polymerization rate, high yield and low content of free phenols; the thermoplastic phenolic resin can be applied for preparing the coated sand and the prepared coated sand has higher hot tensile strength and tensile strength at room temperature.

The invention discloses a method for identifying human blood albumin products, comprising the following steps: (1) a citric acid buffer solution is prepared: 0.2mol/L of citric acid and 0.2mol/L of sodium citrate are taken and mixed according to the volume proportion of 12.3: 7.7, and each liter of buffer solution is added with 100mg of sodium azide, then the pH is adjusted to 4.2 by using 0.2mol/L of citric acid and 0.2mol/L of sodium citrate; (2) a BCG reagent is prepared: 105mg of bromocresol green is weighed and firstly dissolved in 2.5ml of 0.1mol/L NaOH (water-jacket heating for dissolution enhancement), then the mixture is added with 1000ml of 0.2mol/L citric acid buffer solution with the pH of 4.2, and 1 to 2ml of Tween minus 80 is added; (3) 2ml of BCG reagent is taken to be added with one drop of human serum albumin product which is ready to be detected, and an even shaking is carried out. If the color of the solution turns green from yellow, the product is an authentic product; otherwise, the product is a schlock. The identification method of the invention has low analysis cost, no need of special equipment, stronger specificity and high correct rate of the inspection results; the invention is applicable to the rapid inspection method of human blood albumin at the scene, and meets the needs of the basic pharmaceutical supervision and inspection.

A heat-sensitive lithographic printing plate precursor is disclosed which comprises a hydrophilic support and an oleophilic coating thereon which comprises an infrared light-to-heat converter, an alkali-soluble binder and a polymeric developer accelerator. The polymeric developer accelerator is preferably a phenolic formaldehyde resin comprising at least 70 mol % of meta-cresol as recurring unit or at least 40 mol % of monohydroxy benzene cresol as recurring unit. The PDA may also be a phenolic resin which comprises at least 5 mol % of a recurring monomeric unit having at least one phenolic hydroxyl group and at least one alkali solubilising group. The polymeric developer accelerator improves the sensitivity while maintaining a good under-exposure latitude and a good developer resistance of the printing plate.

Insulation compositions for electric power cables having a polyolefin base polymer and an additive comprising either low molecular weight wax or polyethylene glycol (PEG) and optionally further comprising one or more hindered amine light stabilizers, amine antioxidants and other antioxidant blends are disclosed. Also disclosed are insulation compositions comprising a C₂ to C₈ alpha olefin in combination with a polyethylene homopolymer together with, optionally, one or more hindered amine light stabilizer and a liquid cresol antioxidant.

Rotary oil-jet air compressor lube oil and its production are disclosed. The formula consists of aromatic amine high-temperature antioxidant 0.1-0.6wt%, phenol antioxidant 0.1-1.0wt%, organic phosphate oil solution 0.1-0.6wt%, tinuvin fatty salt synergistic 0.01-0.1wt%, alkenyl ethylene dicarboxylic acid antirust agent VO.01-0.1wt% and base oil residue. It can be used at 100-200degree and has long antioxidant life.

The invention relates to environment friendly binder for dry vibratory material for a tundish. The binder contains sodium-containing phosphate or borate glass 10-80 wt%, magnesium salt 15-85 wt%, and silicate or borate of alkali metal 0.01-5 wt%. The binder has the advantages that inorganic salts is used as the composite binder of carbon-free dry vibratory material and no carbon is introduced into molten steel to prevent carbon and hydrogen in molten steel from increasing, so requirement for smelting low-carbon steel can be satisfied; during a baking process, no pungent odor from formaldehyde, cresol, etc. is generated, and the binder is environment friendly; the bind has good erosion resistance, and is easily decomposed, and both the bonding strength and the moderate-temperature strength can satisfy requirements for demolding and application; and the service life of the tundish is prolonged, and the average service life of the dry material prepared from fused magnesite and sintered magnesite is 29 hours or longer.