563results about How to "Good low temperature stability" patented technology

Disclosed herein is a polymer comprising an amorphous syndiotactic rich polyolefin comprising greater than about 50 wt % C3-C40 alpha olefins and having about 50% to less than about 80% r dyads, based on the total number of r and m dyads present in the polymer; a heat of fusion of 10 joules / g or less according to the procedure described in ASTM E 794-85; and an ash content of 1 wt % or less. A functionalized amorphous syndiotactic rich polyolefin is also disclosed, along with methods to produce and a method to use the inventive polymer.

Disclosed herein is a polymer comprising an amorphous syndiotactic rich polyolefin comprising greater than about 50 wt % C3-C40 alpha olefins and having about 50% to less than about 80% r dyads, based on the total number of r and m dyads present in the polymer; a heat of fusion of 10 joules / g or less according to the procedure described in ASTM E 794-85; and an ash content of 1 wt % or less. A functionalized amorphous syndiotactic rich polyolefin is also disclosed, along with methods to produce and a method to use the inventive polymer.

The invention discloses a flucarbazone-Na compounded herbicide which comprises an active component I (flucarbazone-Na), an active component II and auxiliary components, wherein the active component II is one or a combination of several of mesosulfuron methyl, isoproturon, chlortoluron, pyroxsulam, Clodinafop-propargyl, carfentrazone-ethyl, tribenuron-methyl, fluroxypyr, methoxone, 2,4-D-butyl ester, dicamba, bromoxynil, thifensulfuron methyl, amidosulfuron, bensulfuron-methyl, flumetsulam, fluoroglycofen-ethyl and florasulam; the auxiliary components comprise an auxiliary agent and also comprise one of a filler and a solvent; the auxiliary agent is one or a combination of two of an emulsifying agent, a dispersant, a wetting agent, a disintegrant, an agglomerant, an antifreezing agent and a thickening agent; the mass sum of the active component I (flucarbazone-Na) and the active component II is 1%-85% of the total mass of the flucarbazone-Na compounded herbicide; and the mass ratio of the active component I to the active component II is (1:20)-(20:1). The flucarbazone-Na compounded herbicide disclosed by the invention is a novel herbicide for preventing and removing weeds in a wheatland.

The invention provides a cold-chain transportation cold preservation box and a manufacturing method thereof, wherein the cold-chain transportation cold preservation box comprises a box body and a box cover; the box body is provided with an opening, and each of the box body and the box cover comprises an outer layer, a thermal insulating layer and an inner layer; the box cover can be detachably connected with the box body and is used for closing the opening; and each thermal insulating layer is made of an aerogel thermal insulating material and is arranged between each outer layer and each inner layer. According to the cold-chain transportation cold preservation box provided by the invention, the thermal insulating layer made of the aerogel thermal insulating material has an ultralow thermal conductivity, is good in low-temperature stability and can keep cold preservation performance, favorable flexibility and non-cracking property for a long term at 270 DEG C below zero; compared with a thermal insulation box used for solving the problem of last kilometer transportation in the express industry at present, the cold-chain transportation cold preservation box has an ultrathin property and is better in cold preservation property, in addition, the thermal insulating layer is enabled to have better waterproofness; and the aerogel thermal insulating material has relatively good flexibility and can be made into a flexible box body together with the outer layer and the inner layer, so that the box body has the folding property, convenient and rapid and easy to operate.

The invention relates to a liquid crystal medium having negative dielectric anisotropy, comprising at least one compound of the formula (I), where R1, R1*, and a have the meanings indicated in Claim 1, and to the use thereof for an active matrix display, particularly based on the VA, PS-VA, PALC, FFS, or IPS effect.

The invention provides an asphalt pavement crack pouring process and a pavement crack repair agent. The process is mainly characterized by adopting a composite structure repair mode of bonding a composite fiber cloth on the upper surface of a repair agent layer. The used repair agent is prepared from the following raw materials in percentage by mass: 65-90% of substrate asphalt, 3-10% of modifying agent, 3-20% of solvent oil and 1-5% of plasticizing agent. The process is applicable to the crack repair of an asphalt pavement at (-16)-15 DEG C in autumn and winter, reduces the damage of snowmelt to the pavement in winter, prolongs the service life of the pavement, improves the pavement quality and lowers the maintenance cost.

The invention relates to a polar compound liquid crystal mixture with the negative dielectric anisotrophy, which is characterized by being composed by one or a plurality of compounds in general formulas I-III, wherein R1, R2, R3, R4, R5 and R6 respectively and independently represent the linear chained alkyl with 1-8 carbon atom(s) or the alkoxy with 1-7 carbon atom(s), and Z1, Z2, Z3 and Z4 respectively and independently represent single linkages, - CH2CH2-, - C=-C-, -COO-, -OCH2-, -CH2O-, -CH=N-and the like, n represents three integers of 0, 1 or 2; and link A represents trans form 1, 4 cyclohexylidene or 1, 4-phenylene. The liquid crystal mixture has larger negative dielectric anisotrophy and higher clearing point.

The invention belongs to the technical field of superconduction and particularly relates to an uninsulated superconducting magnet. The uninsulated superconducting magnet comprises a coil framework and a superconducting wire wound on the coil framework, wherein the surface of the superconducting wire is free from an insulating layer or is wrapped with an incomplete insulating layer, a mixture of an electroconductive material, a heat-conducting material, a curing material and a wetting material is filled among the turns of the superconducting wire, the inter-turn resistance is 0.1ohm-100kilohm, and in terms of volume percentage of all materials, the uninsulated superconducting magnet comprises 0.01-99.9% of the electroconductive material, 0-99.9% of the heat conducting material, 0-99% of the curing material and 0-5% of the wetting material. According to the uninsulated superconducting magnet disclosed by the invention, electroconductive components are filled in each turn of the superconducting coil so that the inter-turn resistance is maintained higher, not only is the inter-turn uninsulated characteristic brought into play, but also the charging excitation and the quench protection of the superconducting magnet are facilitated.

To provide: a carboxamide derivative having reduced content of amide ester; a method for producing thereof; and a detergent composition containing the carboxamide derivative and having excellent low-temperature stability. One method for producing a carboxamide derivative is to react carboxamide, produced with a manufacturing method of carboxamide including 0.02% by weight to 0.18% by weight of amide ester, with hydrogen peroxide, wherein the method includes a carboxamide synthesis process to synthesize carboxamide by reacting diamine with fatty acid ester at a molar rate of 1.20 to 1.60. Another method for producing a carboxamide derivative is to react the carboxamide with monohaloalkylcarboxylic acid or a salt thereof. A carboxamide derivative is produced by the method for producing a carboxamide derivative. A detergent composition includes the carboxamide derivative. The carboxamide derivative is preferably amidoamine oxide or amide betaine.

The invention relates to new sun protection compositions with improved water resistance which are distinguished by the fact that they have an effective content of diol dimer fatty acid esters and, more particularly, dimer diol dimer fatty acid esters.

The invention discloses a mesosulfuron-methyl compound herbicide which consists of mesosulfuron-methyl as active ingredient I, active ingredient II and auxiliary ingredients; the active ingredient II is the combination of one or more of flucarbazone-Na, isoproturon, chlortoluron, pyroxsulam, 2-methyl-4-chlorophenoxy acetic acid, 2,4-D butyl ester, dicamba, bromoxynil, amidosulfuron, bensulfuron-methyl, flumetsulam, fluoroglycofen-ethyl and florasulam; the auxiliary ingredients consists of adjuvant and one of filler and solvent, and the adjuvant is the combination of one or more of emulsifying agent, dispersing agent, wetting agent, disintegrant, binding agent, antifreezing agent and thickening agent; the sum of the weight of the mesosulfuron-methyl as the active ingredient I and the weight of the active ingredient II is 1 to 85 percent of the total weight of the mesosulfuron-methyl compound herbicide; and the weight ratio of the active ingredient I to the active ingredient II is 1:20 to 20:1. The mesosulfuron-methyl mixed herbicide is novel herbicide for wheatlands.

There is provided a novel pesticidal emulsifiable concentrate composition that contains a phenoxypropionate herbicide (e.g., quizalofop-p-ethyl), a polar solvent (e.g., N-methyl-2-pyrrolidone), non-polar solvent (e.g., aromatic or aliphatic hydrocarbon) and a surfactant (e.g., polyoxyethylene castor oil ether, polyoxyethylene styryl phenyl ether), and that is improved in low-temperature stability and emulsion stability.

The invention belongs to the technical field of the catalytic purification of environments, and provides a nanoflower spinel CoMn2O4 catalyst for the catalytic oxidation of VOCs (Volatile Organic Compounds), a preparation method and application thereof. Oxalic acid is used as a precipitator; the pinel CoMn2O4 catalyst is obtained by washing, drying and calcination. The CoMn2O4 catalyst prepared bythe preparation method exhibits that nanosheets form a nanoflower-shaped structure through self-assembly. Compared with oxides Co3O4 and MnOx, a mixed phase Co3O4 / MnOx and a spinel CoMn2O4 catalyst reported by current literature, the spinel CoMn2O4 catalyst prepared by the preparation method shows better activity and stability in removal of the VOCs, can reach 99 percent of the toluene removal rate at 220 DEG C, is used for realizing 100 percent conversion of formaldehyde at 90 DEG C, meanwhile, can have the acetone removal rate reaching 100 percent at 170 DEG C, and has a better industrial application prospect.

The invention discloses a multifunctional semi-synthetic metal processing liquid and preparation method thereof. The multifunctional semi-synthetic metal processing liquid comprises, by weight, 5-20 parts of base oil, 8-10 parts of polyisobutylene succinic anhydride or the derivative of the same, 8-15 parts of borate, 2.5-8 parts of fatty acid methyl ester, 2 to 4 parts of rust inhibitor, 35 to 52 parts of water, 1 to 1.5 parts of amine, 0.5 to 0.8 part anti-hardening agent, 0.2 to 4.5 parts of copper corrosion inhibitor, 2 to 3 parts of aluminum corrosion inhibitor, 5 to 6 parts of coupling agents, 3 to 4 parts of fungicides and 0.2 to 0.3 part of defoaming agent. The metal processing liquid provided by the invention not only has excellent cooling effects, very good lubricating effects and extreme pressure property, excellent high temperature stability and low temperature stability, but also generates little foam. The processing liquid is an environment friendly product which can be used for the cutting and grinding operation with medium and high difficulties in the high-speed cutting and large piece cutting.

The present invention relates to a fatty acid composition which contains an effective amount of fatty acids providing improved low temperature stability of the composition. The present invention also relates to a process for producing a fatty acid composition wherein the process comprises the steps of selecting a crude tall oil having a fatty acid concentration and type capabld of providing low temperature stability, distilling said crude tall oil to provide a fatty acid composition containing an effective amount of tall oil fatty acids providing low temperature stability. The fatty acid composition of the present invention is used as a fuel additive.

The invention relates to a dual-component environment-friendly type organic silicon rubber waterproofing paint and its preparation process. The paint contains component A which is made of organosilicon emulsion, strengthening agents, fillers and catalyst, and component B which is made of polyfunctional group organosilicon cross linking agents and tackiness agent. The dual-component environment-friendly type organic silicon rubber waterproofing paint is preparing by compounding of the said components A and B in definite proportions. The tensile strength of the said organic silicon rubber waterproofing paint solidified film is more than 2.0 MPa and the elongation percentage is more than 500%. It also has strong adhesive force for the surface of many base materials such as metal, treatment or untreatment wood, tar mats, ceramic tiles, roofing and asphalt felts.

Disclosed are dibenzofuran and dibenzothiophene derivatives of the general formula I,in which X1, X2, W, Y, R, A, Z and m have the meaning defined in claim 1, to a process for the preparation thereof, to the use thereof as components in liquid-crystalline media, and to electro-optical display elements which contain the liquid-crystalline media according to the invention.

The invention provides an anti-cracking method for quickly frozen glue pudding of low production cost and high product quality. In order to reach the goal, the invention adopts the following technical scheme that: 1-8 percent of DHC-F7101 modified starch and 1-8 percent of trehalose by weight percent are added in glutinous rice flour and are evenly mixed. By adopting the technical scheme, the water retaining capacity and the low-temperature stability of the glutinous rice flour are good, and the damage rate and the frost cracking rate caused by water loss and product temperature fluctuation during processing, storage, logistics and sales of the quickly frozen flue pudding are well improved. The glue pudding is prevented from being cracked, so the production cost is reduced, the return rate is reduced, the product quality is improved and the product shelf life is prolonged.

The electrical properties and high-temperature characteristics of an electrolytic capacitor are rendered satisfactory by addition of a compound with an unsaturated bond-containing chain which serves to absorb hydrogen gas generated by reaction between the aluminum electrode foil and the electrolyte solution. The electrolytic capacitor contains the unsaturated compound which allows hydrogen addition, or the electrolytic solution, which comprises a solvent composed of 10-80 wt % of an organic solvent and 90-20 wt % water and at least one electrolyte selected from the group consisting of carboxylic acids or their salts and inorganic acids or their salts, also comprises one or more unsaturated compounds which are water-soluble or soluble in polar and protic polar solvents.

The invention discloses a methanation catalyst of carbon oxides containing nickel, the methanation catalyst contains active components of a) nickel oxide, b) tungsten oxide and / or molybdenum oxide, and c) at least one active component which is selected from alkali metal oxides, alkaline earth metal oxides and rare earth metal oxides which are loaded on a carrier of the oxides, and the carrier of the oxides is aluminium oxide, silicon oxide, titanium oxide, zirconium oxide or the mixture thereof. The catalyst of the invention has very high activity at low temperature, high anti-poisoning capacity and thermal stability and broad application prospect.

A film roll comprising a heat-shrinkable polystyrene based resin film wound into a roll, characterized in that, each of the samples taken out from the roll exhibits, in a heat shrinkage test under the condition of the immersion in a hot water at 85° C. for 10 sec, a heat shrinkage rate in the main shrinking direction of within ±5% relative to an average rate of the total samples; a heat-shrinkable polystyrene based resin film taken from the roll; a heat-shrinkable label comprising the film; a method for producing the heat-shrinkable polystyrene based resin film roll which comprises using raw material chips having a specific form, or using a hopper having a specific shape for feeding raw material chips to an extruder, or limiting the variation of the surface temperature of a film in a specific production step to a specific range.

The invention discloses an exterior wall coating material capable of finishing working through one-time painting.The exterior wall coating material is prepared from natural resin, polyvinyl acetate emulsion, deionized water, quartz powder, zinc oxide, sulfonated hyperbranched polypyrrolone modified graphene oxide, polybenzimidazole modified meso-porous silicon, KH-560 and inorganic pigment.The exterior wall coating material capable of finishing working through one-time painting has the better adhesive capacity, aging resistance, covering power, washing resistance, scratching resistance, stain resistance, self-cleaning performance, fastness, acid resistance and alkali resistance, longer service life and the like compared with existing water-based exterior wall coating materials.

The invention provides a nano-silver antibacterial agent which includes nano-silver antibacterial stock solutions. Nano-silver is included in the nano-silver antibacterial stock solutions, and the content of the nano-silver is 0.00025 mol / kg to 0.02 mol / kg. The invention further provides a preparation method of the nano-silver antibacterial agent. The nano-silver antibacterial agent can be foam emulsion and sprays in a flow state, can be used as washing-free sprays, and is convenient for people to use when cleaning with water is inconvenient in travel.

Modified alkylphenol-aldehyde resins include one or more alkylamines, having preferably at least one primary amine type group as well as their use for improving the flow properties of motor fuels and hydrocarbon fuels, such as in particular jet fuel, gas oil, fuel oil domestic, heavy fuel oil.

The invention discloses a functional grease composition, which is characterized in that the invention consists of glyceride containing conjugated linoleic acid and medium chain fatty acid and glyceride rich in diglyceride. The grease composition has the function of preventing and curing metabolic syndrome, use adaptability which is nearly equivalent to the common edible oil, good taste, high safety and relatively low production cost, thus being beneficial to industrialized production and market promotion.

The invention relates to high-performance modified asphalt. The high-performance modified asphalt is prepared from the following ingredients: asphalt, thermoplastic rubber, glue powder, an additive and a stabilizer, wherein the asphalt is heavy-traffic-road petroleum asphalt or cycloalkyl petroleum asphalt, the thermoplastic rubber is styrene-isoprene-styrene block copolymer (SIS) or styrene-butadiene-styrene (SBS), the glue powder is rubber powder which is formed through grinding waste and old tires prepared through normal temperature methods, the additive is volcanic ash or silicon powder or fly ash, and the stabilizer is rosin or rosin resin. The high-performance modified asphalt has better high-temperature stability, the softening point capable of reaching above 80 DEG C, better low-temperature stability, the brittle point being below -30 DEG C, relatively high elasticity, the elasticity recovery reaching over 90% and better adhesivity reaching over the level IV. The waste of energy and resources is reduced through using industrial and domestic wastes as much as possible, so that the preparation method has the advantages of energy saving, emission reduction, simple production process and low cost.

The invention belongs to the field of daily cosmetics, relates to soap base shower cream and particularly relates to low-temperature stable transparent soap base bath composition. The bath composition contains higher-concentration fatty acid and varieties of surface active agents; on the premise of keeping high fatty acid, the transparent soap base bath composition is in a transparent state at 5 DEG C, can still keep transparent appearance after room temperature restores from -5+ / -2 DEG C and avoids white tallate precipitation; the bath composition has the characteristics of being stable, small in irritation, strong in cleaning force and transparent.