107 results about "Naphthoic acid" patented technology

The invention discloses a preparation method of a permanent red pigment for an acid and alkali resistant coating, and belongs to the technical field of pigment preparation, a 2B acid derivative is diazotized and then coupled with 2-hydroxy-3-naphthoic acid, then a calcium chloride aqueous solution is added for color lake to obtain pigment particles, and finally the surfaces of the pigment particles are coated with silicon dioxide to obtain the permanent red pigment for the acid and alkali resistant coating. According to the permanent red pigment for the acid and alkali resistant coating prepared by the preparation method disclosed by the invention, the acid and alkali resistance and environmental stability of the pigment are further enhanced while the excellent characteristics of original pigment red 48: 2 are maintained, and the application performance of the pigment is remarkably improved.

The invention discloses a method for preparing high molecular weight thermotropic liquid crystal polyester through melt coupling solid phase polycondensation. The method comprises the following steps: mixing p-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid and a catalyst 1-methylimidazole according to a specific molar ratio of (70-75): (25-30) to synthesize a liquid crystal polyester prepolymer with specific logarithmic viscosity; the preparation method comprises the following steps: crushing and drying a liquid crystal polyester prepolymer, placing prepolymer particles in a solid phase polycondensation device, accurately controlling the time and temperature of the polycondensation reaction, carrying out heating reaction in a nitrogen atmosphere to obtain high molecular weight thermotropic liquid crystal polyester, taking out the high molecular weight liquid crystal polyester, and carrying out viscosity test. In the preparation process of the prepolymer, the prepolymer with proper logarithmic viscosity can be effectively prepared by controlling the reaction temperature and time, so that the controllable preparation of the polymer is realized; the solid-phase polycondensation time required for obtaining the high-molecular-weight polymer is shortened by crushing the prepolymer into particles with different diameters, so that the solid-phase polycondensation efficiency is improved.

The invention relates to the technical field of chemical intermediates, and particularly discloses a preparation method of a givelastat intermediate.According to the preparation method, an initiator compound 5 can be synthesized by adopting cheap 2-hydroxy-6-naphthoic acid (CAS: 16712-64-4, 141 yuan / kg), and the preparation method is different from a method in the prior art. A gemvelastat intermediate compound 4 is synthesized from a compound 5 through a three-step reaction, compared with the prior art, the yield is high, industrial amplification production is more facilitated, in the process of synthesizing a compound 6 from the compound 5, acetonitrile can be adopted as a cyanide source in a reaction system, activated hydroxyl is subjected to a coupling reaction, and the yield is high. In the process of synthesizing a compound 6 from a compound 7 instead of a traditional metal cyanide, or in the process of synthesizing a compound 6 from another compound 5, a cheap cuprous cyanide and cuprous iodide system is adopted for a coupling reaction, and in the process of synthesizing a compound 4 from a compound 7, an acetic acid and sodium triacetoxyborohydride reaction system is adopted, so that the compound 6 is synthesized. And the important intermediate of the givelastat can be obtained with high yield.

The present invention provides 1-hydroxy-2-naphthoate or pamoate of cariprazine, and / or its new solid forms, as well as its pharmaceutical compositions, preparation methods and uses. The salts and solid forms of cariprazine provided by the present invention, especially cariprazine 1-hydroxy-2-naphthoate among the poorly soluble salts of cariprazine, conform to the advantages of long-acting sustained-release preparations, can be developed into suspension injections, and at the same time can overcome the risks of dissociation of existing salt forms such as cariprazine hydrochloride or the problem of not having a sustained-release effect, can achieve the effect of long-term drug administration, and greatly improve the compliance of patients as well as the bioavailability and drug safety of the drug.

To provide a fine granulated agent replenishing liquid for a plating liquid, with the replenishing liquid being excellent in the initial stability and safety, and the replenished plating liquid being excellent in the aging stability, without damaging the appearance of a plating film when replenished for a long period of time nor dissolving an organic resist film present on a material to be plated.SOLUTION: A fine granulated agent replenishing liquid for a plating liquid, replenishing a fine granulated agent to a tin-based plating solution including one or two or more kinds of compounds selected from the group consisting of benzaldehyde, 1-naphthaldehyde, 1-naphthoic acid, 1-acetonaphthone, DL-1-(1-naphthyl)ethylamine, and benzylidene acetone, includes a phenyl glycol-based surfactant, the fine granulated agent and water, with a content of the fine granulated agent therein being in a range of 0.1 g / L or more and 10.0 g / L or less, a content of the phenyl glycol-based surfactant therein being in a range of 5 g / L more and 50 g / L or less, and a content of alcohol being less than 1 mass%.SELECTED DRAWING: None

The invention provides a corrosion-resistant film, a pipe and a preparation method and application of the corrosion-resistant film, the corrosion-resistant film at least contains modified LCP, the modified LCP comprises p-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid and 3, 4-dihydroxythiophene methyl diformate, the p-hydroxybenzoic acid, the 6-hydroxy-2-naphthoic acid and the 3, 4-dihydroxythiophene methyl diformate are used as raw materials, and the 6-hydroxy-2-naphthoic acid and the 3, 4-dihydroxythiophene methyl diformate are used as raw materials. And the molar ratio of the 2, 4-dihydroxy thiophene methyl dicarboxylate is (60-80): (5-40): (0.5-3). The corrosion-resistant thin film provided by the invention is excellent in mechanical property and corrosion resistance, and the corrosion-resistant pipe provided by the invention is high in combining capacity with the thin film and good in corrosion resistance.

The invention discloses a polyphenyl ether resin composition, a polyphenyl ether composite material and a preparation method and application thereof. The polyphenyl ether resin composition is obtained by reacting polyphenyl ether and naphthoic acid compounds in a melt, the polyphenyl ether has a repeating unit with the following structure: R1, R2, R3 and R4 are respectively and independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, halogenated alkyl, alkoxy or halogenated alkoxy; the naphthoic acid compound is at least one of naphthoic acid or hydroxyl naphthoic acid. Compared with polyphenyl ether resin, the polyphenyl ether resin not only can improve the gas barrier property of the polyphenyl ether composite material in a melt, but also can improve the high-temperature injection molding processing stability of the polyphenyl ether composite material.

The invention provides certain nicotine salts, co-crystals, and salt co-crystals and provides novel polymorphic forms of certain nicotine salts. In particular, nicotine salts with mucic acid, 3,5-dihydroxybenzoic acid, and 2,3-dihydroxybenzoic acid, and crystalline polymorphic forms of nicotine 4-acetamidobenzoate, nicotine gentisate, and nicotine 1-hydroxy-2-naphthoate are described. The invention further provides methods of preparation and characterization of such nicotine salts, co-crystals, and salt co-crystals and polymorphic forms thereof. In addition, tobacco products, including smoking articles, smokeless tobacco products, and electronic smoking articles comprising nicotine salts, co-crystals, and / or salt co-crystals are also provided.

The invention provides certain nicotine salts, co-crystals, and salt co-crystals and provides novel polymorphic forms of certain nicotine salts. In particular, nicotine salts with mucic acid, 3,5-dihydroxybenzoic acid, and 2,3-dihydroxybenzoic acid, and crystalline polymorphic forms of nicotine 4-acetamidobenzoate, nicotine gentisate, and nicotine 1-hydroxy-2-naphthoate are described. The invention further provides methods of preparation and characterization of such nicotine salts, co-crystals, and salt co-crystals and polymorphic forms thereof. In addition, tobacco products, including smoking articles, smokeless tobacco products, and electronic smoking articles comprising nicotine salts, co-crystals, and / or salt co-crystals are also provided.

The invention relates to a 2-succinyl-5-enol acetonyl-6-hydroxy-3-cyclohexene-1-carboxylic acid synthase mutant and application thereof, and belongs to the technical field of enzyme engineering. According to the invention, a key residue of 2-succinyl-5-enolacetonyl-6-hydroxy-3-cyclohexene-1-carboxylate synthase is obtained by combining protein sequence comparison and alanine scanning strategies, the key residue is subjected to random mutation, and the menadione pathway resistant intermediate metabolite 1, 2, 3, 4-tetracarboxylic acid synthase is obtained through multiple rounds of screening. The mutant MenDW322IR323F which is subjected to feedback inhibition by using 2, 4-dihydroxy-2-naphthoic acid is synthesized, the heptaene menadione production capacity of the recombinant bacillus subtilis constructed according to the method is improved, the yield is 1.22 times that of a control strain, and the final yield reaches 186.5 mg / L. The invention not only provides a new direction for transformation of a menadione approach of bacillus subtilis, but also is beneficial to industrial expanded production of heptaene menadione.

This invention discloses a viscosity reducer and a slurry preparation method suitable for preparing coal-water slurry from high-viscosity organic wastewater. The high-viscosity organic wastewater viscosity reducer is prepared by adding naphthoic acid (obtained from methylnaphthalene oxidation) to ethylene oxide and propylene oxide in a certain proportion. The slurry preparation method involves adding sodium naphthalenesulfonate as an additive to the high-viscosity organic wastewater after viscosity reduction to obtain the coal-water slurry. This invention overcomes the disadvantage that high-viscosity organic wastewater is unsuitable for preparing coal-water slurry, successfully using a viscosity reducer to reduce the viscosity of high-viscosity organic wastewater and obtain a high-coal-content coal-water slurry.

Provided are: an optical material composition that makes it possible to increase the in-plane retardation of an optical member; a resin composition containing the optical material composition; and a resin molded article of the same.　An optical material composition according to the present invention contains a trehalose derivative. The trehalose derivative is preferably one or more selected from the group consisting of trehalose benzoate, trehalose acetate, and trehalose naphthoate. This optical material composition makes it possible to increase the in-plane retardation of an optical member.

This invention discloses a phenylnaphthic acid derivative and its application in phosphorescent information encryption. The preparation method involves using 3,5-bis(ethoxycarbonyl)phenylboronic acid and methyl 6-bromo-2-naphthylcarboxylate as raw materials, and then performing a Suzuki coupling reaction under tetra(triphenylphosphine)palladium(O) catalysis to obtain the intermediate ethyl 2-(3,5-bis(ethoxycarbonyl)phenyl)-6-naphthylcarboxylate. This intermediate is then subjected to alkaline hydrolysis and acidification to obtain the target product, 2-(3,5-dicarboxyphenyl)-6-naphthylcarboxylic acid. This phosphorescent material has a simple preparation method, lower cost compared to noble metal phosphorescence systems, a simple guest synthesis method with high yield, and exhibits significant and stable phosphorescence effects. Furthermore, precise emission color control of high-performance doped thin films is achieved through the triplet-to-singlet Förster fluorescence resonance energy transfer (TS-FRET) mechanism, establishing a multicolor long-lifetime emission system. In addition, the material has multi-color adjustable properties and excellent long afterglow emission performance, showing great application potential in cutting-edge application fields such as multi-dimensional information encryption and high-end anti-counterfeiting.

The invention belongs to the field of organic synthesis, and particularly relates to a synthesis method of a benzofuran compound. In an inert gas environment, a 2-fluorotoluene compound as shown in a formula 1 and a methyl benzoate compound as shown in a formula 2 are mixed and reacted with an organic solvent methyl tert-butyl ether in the presence of bis (trimethylsilyl) amino cesium and cesium sulfate, and the benzofuran compound as shown in a formula 3 is synthesized under a heating condition. Wherein the methyl benzoate compound as shown in the formula 2 can also be replaced by 2-naphthoic acid methyl ester or 1-naphthoic acid methyl ester. The research develops a benzofuran synthesis strategy without transition metal catalysis. According to the method, on the basis of commercially available raw materials, the construction of a benzofuran skeleton is realized through a simple and efficient path. Due to the mild and green reaction characteristic, a route with practical value is provided for synthesis of active medicine molecules and key intermediates of the active medicine molecules.

In order to increase the total light transmittance while maintaining a high haze value of the thermoplastic liquid crystal polymer, a thermoplastic liquid crystal polymer molded body is produced with a haze value of 99% or more, a coefficient of thermal expansion of 16 to 27 ppm / °C, and a correlation between the absorption coefficient (ε) and the thickness (x) satisfying ε ≤ 0.21x<supgt;‑0.55< / supgt>. The thermoplastic liquid crystal polymer may be a polyester containing repeating units derived from a substance selected from the group consisting of p-hydroxybenzoic acid and 6-hydroxy-2-naphthoic acid; 6-hydroxy-2-naphthoic acid, terephthalic acid, and p-aminophenol; p-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, and terephthalic acid; 6-hydroxy-2-naphthoic acid, terephthalic acid, p-aminophenol, isophthalic acid, hydroquinone, and naphthalenedicarboxylic acid; and p-hydroxybenzoic acid, terephthalic acid, and 4,4'-dihydroxybiphenyl.

The invention relates to the technical field of flue gas desulfurization catalysts, and discloses an activated carbon catalyst for flue gas desulfurization and a preparation method thereof.The preparation method comprises the steps that water and copper salt are added into a container, stirring is conducted, amino naphthoic acid grafted cellulose is added, ionic crosslinking is conducted, a crosslinking product is placed into a tubular furnace, calcination and activation are conducted, and the activated carbon catalyst for flue gas desulfurization is obtained. The activated carbon catalyst for flue gas desulfurization is obtained. The porous activated carbon with a high specific surface area and a high-stability carbon skeleton is formed by taking a cellulose matrix and a naphthalene ring with high char-forming property as carbon sources, the porous activated carbon is large in specific surface area and rich in pores, contains a large number of copper oxide catalytic active components, can effectively reduce the content and concentration of sulfur dioxide in flue gas, and forms an active nitrogen structure in the activated carbon matrix through high-temperature calcination, so that the content of sulfur dioxide in flue gas is reduced. The SO2 adsorption capacity of the activated carbon can be improved.

The utility model relates to the field of neutralization kettles for production of 1-naphthoic acid, in particular to a neutralization kettle for production of naphthoic acid, which comprises a reaction kettle with functions of conveying, discharging, stirring and the like, a control mechanism mainly comprising a transmission shaft, a stirring shaft and the like and used for realizing the stirring function, and the like. Compared with the prior art, the neutralization kettle device disclosed by the utility model has the advantages that on the basis of a liquid bottom gas transmission method, the stirring control mechanism for fully stirring a solution is additionally arranged, and the reaction solution is stirred and turned over through the spiral blade plate on the mechanism, so that complex water flow is generated in the solution; the water flow carries the input carbon dioxide gas to reach each position in the solution, so that the carbon dioxide gas can be diffused in the solution more quickly and can be distributed more uniformly, the reaction production efficiency is improved, the input carbon dioxide gas is fully utilized, and waste is avoided.

Disclosed in the present invention are a polyphenylene ether resin composition and a polyphenylene ether composite, and preparation methods therefor and the use thereof. The polyphenylene ether resin composition of the present invention is obtained by reacting polyphenylene ether with a naphthoic acid compound in a melt. The polyphenylene ether has a repeat unit of the structure below: (I), wherein R1, R2, R3 and R4 are each independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, haloalkyl, hydrocarbyloxy, or halohydrocarbyloxy. The naphthoic acid compound is at least one of naphthoic acid or hydroxynaphthoic acid. Compared with a polyphenylene ether resin, in a melt, the polyphenylene ether resin composition can not only improve the gas barrier property of the polyphenylene ether composite, but also improve the processing stability of the polyphenylene ether composite during high-temperature injection molding.

The present application relates to the technical field of flue gas desulfurization catalyst, and disclose a kind of active carbon catalyst for flue gas desulfurization and preparation method, the present application is added to container water, copper salt, after stirring, amino naphthalene formic acid graft cellulose is added, ion crosslinking is carried out, crosslinking product is placed in tube furnace, calcination, activation is carried out, and the active carbon catalyst for flue gas desulfurization is obtained. With cellulose matrix and high carbon naphthalene ring as carbon source, form high specific surface area, high stability carbon skeleton porous active carbon, large specific surface area, abundant porosity, contain a large number of copper oxide catalytic active component, can effectively reduce the content and concentration of sulfur dioxide in flue gas, after high temperature calcination in active carbon matrix form active nitrogen structure, can improve the adsorption capacity of active carbon to SO2.

The invention relates to a crystal form of donepezil 1-hydroxy-2-naphthoate ((+ / -)-2-[(1-benzyl-4-piperidyl) methyl]-5, 6-dimethoxy-1-indanone 1-hydroxy-2-naphthoate), a preparation method of the crystal form and application of the donepezil 1-hydroxy-2-naphthoate. The crystal form of donepezil 1-hydroxy-2-naphthoate provided by the invention has the advantages of better stability, lower hygroscopicity, lower solubility, lower pH dependence on solubility, better preparation processability and the like, and has important value for the development of long-acting injection of the drug in the future.

To provide a solid form of sulcardine salts other than sulfuric acid salts of sulcardine.SOLUTION: There is provided a solid form comprising an acid salt of sulcardine, wherein the acid is ethane-1,2-disulfonic acid, naphthalene-1,5-disulfonic acid, 1-hydroxy-2-naphthoic acid, naphthalene-2- sulfonic acid, hydrochloric acid, or hydrobromic acid.SELECTED DRAWING: None

The invention discloses a fluorescent molecular probe for detecting SEI on the surface of an electrode in a lithium metal battery and a synthesis method and application of the fluorescent molecular probe, and relates to the technical field of lithium metal batteries, the fluorescent molecular probe is Li2HNA, and the chemical structural formula of the fluorescent molecular probe is shown in the specification. The synthesis method of the Li2HNA comprises the following steps: dissolving 3-hydroxy-2-naphthoic acid and LiOH in a mixed solution composed of deionized water and ethanol, carrying out a stirring reaction to obtain a precipitate, and washing and drying the precipitate to obtain the Li2HNA. By adopting the fluorescent molecular probe disclosed by the invention, the compactness of SEI in a lithium metal electrode in a large-size range can be qualitatively detected and the content of dead Li in the SEI in the lithium metal electrode can be quantitatively detected through fluorescence imaging and fluorescence titration technologies.

The invention relates to the technical field of preparation of 2-hydroxy-6-naphthoic acid, and discloses a refining method of 2-hydroxy-6-naphthoic acid, which comprises the following steps: step 1, dissolving crude 2-hydroxy-6-naphthoic acid in an organic solvent, and heating until the crude 2-hydroxy-6-naphthoic acid is completely dissolved to obtain a 2-hydroxy-6-naphthoic acid solution; step 2, adding activated carbon into the 2-hydroxy-6-naphthoic acid solution, stirring and decoloring, and filtering to remove the activated carbon to obtain a decolored solution; and step 3, recrystallizing through a step-by-step cooling method, separating crystals, and drying to obtain 2-hydroxy-6-naphthoic acid coarse crystals. Compared with the prior art, the method has the advantages of simplicity in operation, mild conditions and easiness in realization of industrial production. According to the method disclosed by the invention, a method of combining activated carbon decoloration, a step-by-step cooling method and an ultrasonic dispersion and centrifugal separation combined process is adopted, so that impurities in the 2-hydroxy-6-naphthoic acid can be effectively removed, and the purity and the yield of the product are improved. The organic solvent used in the method can be recycled, so that the environmental pollution is reduced, and the production cost is reduced.

A purpose of the present invention is to provide a novel heat resistant composition that imparts heat resistance to various materials and therefore can be suitably used particularly for improving the heat resistance of resin materials. Another purpose of the present invention is to provide a heat resistance improvement agent and a resin composition which comprise the heat resistant composition. The present invention is a composition which is used for imparting heat resistance, said composition comprising a trehalose derivative. The trehalose derivative is preferably one or more substances selected from the group consisting of trehalose benzoate, trehalose octaacetate, trehalose naphthoate, and trehalose fatty acid esters.

The invention relates to solid waste rubber powder modified emulsified asphalt for a permeable pavement and a preparation method thereof, and relates to the technical field of asphalt. The modified asphalt is prepared from the following components in parts by mass: 60 to 70 parts of asphalt, 15 to 25 parts of solid waste rubber powder, 4 to 6 parts of poly (4-hydroxybenzoic acid-co-6-hydroxy-2-naphthoic acid), 1.5 to 3.5 parts of carbon fiber, 3 to 5 parts of an emulsifier, 0.5 to 1.5 parts of a penetration enhancer, 0.3 to 0.8 part of a stabilizer and 0.2 to 0.6 part of an anti-aging agent. The preparation method comprises the following steps: heating asphalt until the asphalt is molten, adding solid waste rubber powder, poly (4-hydroxybenzoic acid-co-6-hydroxy-2-naphthoic acid) and carbon fibers, and stirring to obtain a mixture; dispersing an emulsifier into a solvent to obtain an emulsifier solution; adding the mixture into an emulsifier solution, shearing and dispersing, sequentially adding an osmotic regulator, a stabilizer and an anti-aging agent, and stirring to obtain the solid waste rubber powder modified emulsified asphalt for the permeable pavement. The rubber powder modified emulsified asphalt has the effect of improving the compatibility of the rubber powder modified emulsified asphalt, and the asphalt has good high and low temperature performance and storage stability.

The utility model discloses a centrifuge for processing 2-hydroxy-6-naphthoic acid, which comprises an outer cylinder and a centrifugal inner cylinder rotatably connected in the outer cylinder, the top of the outer cylinder is connected with a rotatable top cover, and the outer cylinder is connected with a cleaning mechanism for cleaning the centrifugal inner cylinder. The cleaning mechanism comprises two brush plates, brush bristles, two L-shaped pressing plates and a plurality of guide cylinders, the brush bristles are arranged on the inner sides of the brush plates, the L-shaped pressing plates are connected to the tops of the brush plates, the guide cylinders are used for guiding the brush plates, the L-shaped pressing plates are matched with connecting plates connected to the inner side of the top cover, and the connecting plates are connected to the inner side of the top cover. The brush plates are connected with a driving mechanism used for driving the two brush plates to be close to or away from each other. The centrifugal hole of the centrifugal inner cylinder can be cleaned, follow-up centrifugal operation is facilitated, after cleaning is completed, the end of the L-shaped pressing plate is tightly pressed on the connecting plate, positioning and locking of the top cover are achieved, the stability of connection between the top cover and the outer cylinder is improved, and operation is easy and convenient.

The application discloses a europium functionalized metal-organic framework double-emission fluorescent probe and a preparation method and application thereof, relates to the field of organic metal frameworks and fluorescent detection, and the preparation method comprises the following steps: mixing ZrCl4, pyromellitic acid, 6-hydroxy-2-naphthoic acid and water, adding acetic acid to obtain a mixture; the mixture is heated to reflux, centrifuged to obtain a residue, washed and dried to obtain UCHNA; the UCHNA is dispersed in an aqueous solution of Eu(NO3)3.6H2O, heated to react, the white precipitate is collected, washed and dried, and the Eu-MOF is obtained. 3+ The application has the beneficial effect that a luminescent ligand 6-hydroxy-2-naphthoic acid is used to modify a UiO-66 type MOF, and Eu 3+ -MOF is synthesized through post-modification and reasonable design, and the Eu-MOF can selectively and rapidly respond to crystal violet (CV) and quinine (QN) through different response modes, and has a low detection limit, which is superior to most reported sensors.

The present invention discloses an oil production aid and a preparation method thereof, relating to the technical field of oil production aids. The oil production aid comprises the following raw materials in parts by weight: 30-40 parts of a modified carboxylate surfactant, 15-20 parts of a non-ionic surfactant, 5-6 parts of a co-solvent, 4-6 parts of a stabilizer, 3-5 parts of a scale inhibitor, and 140-160 parts of deionized water; first, 1-(dodec-11-en-1-yl(pentyl)carbamoyl)-2-naphthoic acid sodium is obtained by a ring-opening acylation reaction and an alkylation reaction using n-hexylamine, 1,8-naphthalic anhydride, and 12-bromo-1-dodecene as raw materials, and then it reacts with a first-generation polymer prepared from hexamine and p-aminophenol to finally obtain the modified carboxylate surfactant. The oil production aid prepared by the present invention has the effects of changing the wettability of the core and preventing clay swelling, and improves the oil recovery rate of low-permeability oil reservoirs.

The invention relates to the technical field of biomedical beauty, in particular to application of 6-amino-2-naphthoic acid as a tyrosinase activator. The invention provides an application of 6-amino-2-naphthoic acid in preparation of a tyrosinase activator. The 6-amino-2-naphthoic acid has the effect of activating tyrosinase, accelerates melanin synthesis and can serve as the tyrosinase activator for the first time, a new candidate substance is provided for development of the tyrosinase activator, and a theoretical basis is provided for diseases caused by melanin synthesis reduction and development of drugs for treating the diseases.

To provide a new heat-resistant composition suitably usable for imparting heat resistance to various materials, especially for improving the heat resistance of resin materials. Another object of the present invention is to provide a heat resistance improver and a resin composition containing the heat-resistant composition.SOLUTION: The present invention relates to a composition for imparting heat resistance, which comprises a trehalose derivative. The trehalose derivative is preferably one or more kinds selected from the group consisting of trehalose benzoate, trehalose octaacetate, trehalose naphthoate and trehalose fatty acid ester.SELECTED DRAWING: None