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440 results about "Carbon number" patented technology

Active carrier, supported metallocene catalyst, preparation method and application

PendingCN120795208ACarbon numberPolymer science
The invention provides an active carrier, a supported metallocene catalyst, a preparation method and application. The invention relates to an active carrier, which is used for loading a metallocene compound to form a loaded metallocene catalyst, and comprises a carrier body and an ether-modified aluminoxane compound loaded on the carrier body, the ether-modified aluminoxane compound is modified with at least one of an alkyl ether having an alkyl carbon chain having 10 or more carbon atoms and a crown ether. The aluminoxane compound is modified by ether, so that the usage amount of the aluminoxane compound when the active carrier is used for preparing the supported metallocene catalyst can be reduced, the preparation cost of the supported metallocene catalyst is further reduced, and the supported metallocene catalyst can maintain relatively high catalytic activity.
Owner:SHANGHAI RES INST OF CHEM IND CO LTD +2

Organopolysiloxane having reactive silicon-containing group, production method therefor, curable composition, and cured product

PCT designated stage expiredWO2025142716A1Group 4/14 element organic compoundsCoatingsArylCarbon number
This reactive silicon group-containing organopolysiloxane has, in each molecule, at least one group represented by structural formula (1) bonded to a silicon atom. The reactive silicon group-containing organopolysiloxane has good curability even if an amine-based compound is used as a curing catalyst, and gives a cured product having excellent yellowing resistance and heat resistance. (In the formula, R1 and R2 each independently represent a hydrogen atom, a C1-10 aliphatic saturated hydrocarbon group or a C6-10 aryl group, each R3 independently represents a C1-10 aliphatic saturated hydrocarbon group or a C6-10 aryl group, and n is an integer of 2-12. The wavy line represents a bond.)
Owner:SHIN ETSU CHEMICAL CO LTD

Pigment dispersion liquid, aqueous coating composition, and methods for producing pigment dispersion liquid and aqueous coating composition

A pigment dispersion liquid containing a copolymer (A) having a first segment (a1) derived from a nitrogen-containing polymerizable unsaturated monomer having a tertiary amino group and / or a nitrogen-containing heterocyclic group, and a second segment (a2) derived from a polymerizable unsaturated monomer having a polyoxyalkylene chain, a hydrocarbon group-containing acidic compound (B), a pigment (C), and an aqueous solvent (D), and a hydrocarbon group-containing acidic compound (B) having a C5-23 saturated or unsaturated hydrocarbon group (b1) and at least one acid group (b2) selected from the group consisting of a carboxyl group, a phosphate group, a sulfonic acid group, and a phenol group.
Owner:NIPPON PAINT AUTOMOTIVE COATINGS CO LTD

Reactive silicon group-containing polyoxyalkylene derivative, production method therefor, curable composition, and cured product

PCT designated stage expiredWO2025142718A1Polyether coatingsPolyether adhesivesArylCarbon number
This reactive silicon group-containing polyoxyalkylene derivative in which one or both terminals of a polyoxyalkylene chain are blocked with a group represented by structural formula (1) has good curability even if an amine-based compound is used as a curing catalyst, and gives a cured product having excellent yellowing resistance and heat resistance. (In the formula, R1 and R2 each independently represent a hydrogen atom, a C1-10 aliphatic saturated hydrocarbon group or a C6-10 aryl group, each R3 independently represents a C1-10 aliphatic saturated hydrocarbon group or a C6-10 aryl group, and n is an integer of 2-12. The wavy line represents a bond.)
Owner:SHIN ETSU CHEMICAL CO LTD

Complex lithium-based lubricating grease and preparation method thereof

The invention provides composite lithium-based lubricating grease and a preparation method thereof. The composite lithium-based lubricating grease comprises lubricating base oil, a composite lithium-based thickening agent and an additive, wherein the lubricating base oil comprises base oil (I) and base oil (II), and the base oil (I) is a trimethylolpropane ester composition; the trimethylolpropane ester composition comprises the following components: (a) # imgabs0 #, (b) # imgabs1 # and (c) # imgabs2 #, wherein R1, R2 and R3 groups are respectively and differently selected from C4-C9 straight chain or branched chain alkyl groups, and the carbon numbers in the R1, R2 and R3 groups are different from one another; the molar ratio of the component (a) to the component (b) to the component (c) is 1: (1.7-2.3): (0.7-1.3); the base oil (II) is selected from one or more of synthetic oil, mineral oil and vegetable oil. The composite lithium-based lubricating grease provided by the invention has excellent high and low temperature performance, good colloid stability, excellent mechanical stability and excellent oxidation resistance.
Owner:CHINA PETROLEUM & CHEMICAL CORP +2

Pressure-sensitive adhesive composition, pressure-sensitive adhesive sheet, laminate, and method for producing ß-1,3-glucan derivative

The present invention provides a pressure-sensitive adhesive composition suitable for producing a pressure-sensitive adhesive sheet having a low glass transition temperature. The pressure-sensitive adhesive composition according to the present invention includes a β-1,3-glucan derivative G. The β-1,3-glucan derivative G has an acyl group a having a carbon number of 8 or more and an acyl group b having a carbon number different from the carbon number of the acyl group a, and the carbon number of the acyl group b is 8 or more. A pressure-sensitive adhesive sheet 1 according to the present invention is formed from the pressure-sensitive adhesive composition. A laminate 10 according to the present invention includes the pressure-sensitive adhesive sheet 1 and a substrate sheet 2.
Owner:NITTO DENKO CORP

Reactive silicon group-containing organopolysiloxane and surface treatment agent

PCT designated stage expiredWO2025142717A1Other chemical processesCoatingsCarbon numberHydrogen atom
This reactive silicon group-containing organopolysiloxane, which contains, per molecule thereof, one group represented by structural formula (1) and bonded to a silicon atom at the end of a linear organopolysiloxane, forms a film having excellent water repellency, water sliding properties, and durability. (In the formula, R1 and R2 each independently represent a hydrogen atom, a C1-C10 aliphatic saturated hydrocarbon group, or a C6-C10 aryl group, R3s each independently represent a C1-C10 aliphatic saturated hydrocarbon group or a C6-C10 aryl group, Z represents an oxygen atom, a C2-C12 alkylene group, or a C8-C12 alkylene arylene group, and a line with a wavy line represents a bond.)
Owner:SHIN ETSU CHEMICAL CO LTD

Resin composition, cured object, and electronic component

PCT designated stage expiredWO2025115606A1ElastomerCarbon number
One embodiment of the present invention pertains to a resin composition, a cured object, or an electronic component. The resin composition contains: a polymer (A) having a structural unit represented by formula (a1-1); and a hydrogenated styrene-based thermoplastic elastomer (B). In formula (a1-1), Ra1 represents a divalent group represented by formula (a2), and Ra2 represents a substituted or unsubstituted divalent aromatic heterocyclic group. In formula (a2), Ara1 and Ara2 each independently represent a substituted or unsubstituted aromatic hydrocarbon group, L represents a single bond, -O-, -S-, -N(R8)-, -C(O)-, -C(O)-O-, -C(O)-NH-, -S(O)-, -S(O)2-, -P(O)-, or a divalent organic group, y represents an integer of 0-5, and Ra6 and Ra7 each independently represent a single bond, a methylene group, or an alkylene group having 2-4 carbon atoms.
Owner:JSR CORPORATION

Sunscreen composition

PCT designated stage expiredWO2025105318A1Cosmetic preparationsToilet preparationsCarbon numberAlcohol
The sunscreen composition contains 2-51 mass% of a component (A), 9-80 mass% of a component (B), 0.1-14 mass% of a component (C), 0.1-10 mass% of a component (D), 5-40 mass% of a component (E), and 6-57 mass% of a component (F). The mass ratio ((A) / (B)) of the component (A) and the component (B) is 5 / 95-60 / 40. Component (A): isoparaffin having an average carbon number of 50-250. Component (B): isoparaffin having an average carbon number of 20-24. Component (C): an emulsifier such as a sorbitan fatty acid ester having an HLB of 2-10. Component (D): a polyhydric alcohol that has 2-6 carbon atoms and is dihydric or trihydric. Component (E): an ultraviolet scattering agent. Component (F): water.
Owner:NOF CORP

Derivative of benzobipyrrole compound, preparation method and application thereof, hydrogen storage method and hydrogen release method

The invention relates to the technical field of hydrogen storage of organic aromatic hydrocarbon molecules, in particular to a derivative of a benzopyrrole compound, a preparation method and application of the derivative, a hydrogen storage method and a hydrogen release method. The chemical structural formula of the derivative is selected from one of M1, M2, M3, M4, M5R and M5S, wherein when the chemical structural formula of the derivative is M1, M2, M3, M5R or M5S, A is selected from a saturated alkyl chain with the carbon number of 1-6 or an unsaturated alkyl chain with the carbon number of 2-6; when the chemical structural formula of the derivative is M4, A is selected from a saturated alkyl chain with the carbon number of 1-6, an unsaturated alkyl chain with the carbon number of 2-6 or boron. Compared with azacyclo-organic molecular materials (carbazoles and indoles) which exist in the field of organic hydrogen storage and are massively researched, the azacyclo-aromatic organic molecular material containing the double nitrogen atoms, which can generate a bridging structure between the double nitrogen atoms and can be used for hydrogen storage, is provided for the first time; and the material is large in hydrogen storage capacity and low in melting point.
Owner:QINGDAO BOLIU INNOVATION TECHNOLOGY CO LTD

Protective film composition for dicing, wafer manufacturing method, and wafer processing method

To provide a protective film composition for dicing which can suppress temporal lowering of absorbance, and can suppress temporal increase in the number of defects, and a wafer manufacturing method and a wafer processing method which use the same.SOLUTION: A protective film composition for dicing contains an ultraviolet absorber containing a compound (1) represented by the following general formula (1), a water-soluble resin, formic acid ions, and water, and the content of the formic acid ions is 300 to 6,000 mass ppm. In the formula, X represents a hydrogen atom, and -OR1; R1 represents a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms; n represents the number of 1 to 5; and m represents the number of 0 to 4.SELECTED DRAWING: None
Owner:TOKYO OHKA KOGYO CO LTD

Toner

A toner comprising a toner particle comprising a binder resin, wherein the binder resin comprises an amorphous polyester A and a crystalline polyester C; the amorphous polyester A has an amorphous polyester segment a1 and a2; the amorphous polyester segment a2 has a monomer unit of a specific alcohol a0; the crystalline polyester C is a polymer having a crystalline polyester segment c2 and a crystalline segment c1 bonded to the end of the crystalline polyester segment c2; the crystalline polyester segment c2 has a monomer unit of a specific alcohol b0; an absolute value of a difference between a carbon number of the linear aliphatic polyhydric alcohol a0 and a carbon number of the linear aliphatic polyhydric alcohol b0 is 4 or less; and SP values of the polyester segment a1 and a2, and the crystalline segment c1 and the crystalline polyester segment c2 satisfy specific relationships.
Owner:CANON KK

Electrolyte composition, solvent composition, non-aqueous electrolyte, and use thereof

An electrolyte composition includes: a sulfonylimide compound represented by the following general formula (1) as an electrolyte salt; and an amidosulfuric acid component.LiN(X1SO2)(X2SO2)  (1)(where X1 and X2 are identical to or different from each other, and each represent a fluorine atom, an alkyl group with a carbon number of 1 to 6, or a fluoroalkyl group with a carbon number of 1 to 6).
Owner:NIPPON SHOKUBAI CO LTD

Dispersant and aqueous coating composition

The purpose of the present invention is to provide a dispersant which exhibits excellent dispersibility and in which the water resistance of a coating film obtained therefrom does not decrease even when added to an aqueous coating agent. The present invention is a dispersant characterized by comprising (A) a styrene-maleic acid organic ammonium salt copolymer and (B) an alkylene oxide (C2-4, addition mole number of 3-50 moles) adduct of at least one active hydrogen compound (C4-18) selected from the group consisting of alcohols, carboxylic acids, amines and amides, the active hydrogen compound having a branched alkyl chain having C4-18. The composition molar ratio (s: m) of styrene units (s) and ammonium maleate units (m) constituting the styrene-ammonium maleate copolymer is preferably from 80: 20 to 40: 60. The weight ratio (A: B) of the styrene-ammonium maleate copolymer (A) to the polyoxyalkylene compound (B) is preferably 10: 90 to 90: 10.
Owner:SAN NOPCO

Borate compound-containing composition

A borate compound-containing composition soluble in hydrocarbon solvents. A composition containing base A, or a compound having a total carbon number of not less than 8 and represented by the formula (5):wherein R and R′ are each independently an optionally substituted C1-30 alkyl group, an optionally substituted C3-15 cycloalkyl group, or an optionally substituted C6-14 aryl group; anda borate compound represented by the following formula (1):wherein R1, R2, R3 and R4 are each independently a C6-14 aryl group substituted by one or more fluorine atoms or fluoro C1-4 alkyl groups; and[A-H]+ is a base A-derived cation. A method for producing a polymer, by polymerizing at least one kind of monomer selected from the group consisting of olefins and dienes by using the composition A as a cocatalyst.
Owner:AGC INC

Photoresist pattern forming method

A method for forming a photoresist pattern includes: (i) a step of forming a photoresist film on a support using a photoresist composition; (ii) a step of exposing the photoresist film; and (iii) a step of developing the exposed photoresist film to form a photoresist pattern, characterized in that the photoresist composition contains: a resin (A) whose solubility in the developer changes due to the action of an acid, an acid-generating agent (B) that generates acid upon exposure, a photodegradable alkali (D1), a solvent (S), and a compound (X) represented by the following formula (x-1), wherein the amount of solvent remaining in the photoresist film formed in step (i) is 910 ppm or more, wherein R 1 ~R 4 It is a hydroxyl group or an alkyl group having 1 to 5 carbon atoms, R 5 and R 6 It is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or an alkyl group having 1 to 10 carbon atoms obtained by substitution with a hydroxyl group.
Owner:TOKYO OHKA KOGYO CO LTD

Method of producing carboxylic acid fluoride

An object is to provide a method of producing a carboxylic acid fluoride at an increased product yield in a reaction system without forming HCl as a by-product, in other words, without forming a complex between HCl and a carboxylic acid fluoride as a product.The method comprising reacting a carboxylic acid chloride with a metal fluoride. In this production method, the carboxylic acid is a carboxylic acid having a carbon number of 1 to 7, the carboxylic acid is a carboxylic acid substituted with fluorine, or the carboxylic acid is trifluoroacetic acid.
Owner:KANTO DENKA IND CO LTD

Amido group-containing monomer composition and method for improving storage stability of amido group-containing monomer

An amido group-containing monomer composition contains 80.00 to 99.99 mass % of an amido group-containing monomer (a) of the following formula (1) and 0.01 to 20.00 mass % of a metal chelate complex (b) having carbonyl group as a ligand:wherein R1 represents a hydrogen atom or a methyl group, R2 represents a hydrocarbon group having a carbon number of 1 to 6, R3 represents a hydrocarbon group having a carbon number of 1 to 23, and R4 represents hydrogen or a methyl group.
Owner:NOF CORP

Hair dyeing method

The present invention provides a hair dyeing method which comprises a step 1 and a step 2 in this order, and does not comprise a step for rinsing hair between the step 1 and the step 2, and comprises a step for rinsing hair after the step 2: step 1: a step for applying an agent A to hair, the agent A having a pH value of 8-11 and containing the following components (a1) and (a2): (a1) a compound represented by general formula (1) or a salt thereof; the dashed line represents the presence or absence of a pi bond, R1 represents a hydroxyl group or an acetoxy group, R2 represents a hydrogen atom or-COOR (R represents a hydrogen atom, a methyl group or an ethyl group), and R3 represents a hydrogen atom, an acetyl group, a methyl group or an ethyl group); (a2) an alkaline agent; step 2: A step for applying agent B to hair, said agent B containing the following component (b): (b) alkali metal salt or alkaline earth metal salt selected from among organic acid salts or inorganic salts having 6 or less carbon atoms # imgabs0 #
Owner:KAO CORP

Bubble-containing hydraulic composition

Provided are: a bubble-containing hydraulic composition in which the specific gravity of a bubble-containing hydraulic composition hardened body is low, and the diameter of bubbles in the bubble-containing hydraulic composition hardened body is large; and a method for producing the bubble-containing hydraulic composition hardened body. Provided is a bubble-containing hydraulic composition containing a hydraulic powder, water, and (A) an alkyl or alkenyl sulfate ester or a salt thereof (hereinafter referred to as component (A)), the present invention is characterized by containing (A1) an alkyl or alkenyl sulfate having a C10 alkyl or alkenyl group or a salt thereof (hereinafter referred to as component (A1)) and (A2) an alkyl or alkenyl sulfate having a C12 alkyl or alkenyl group or a salt thereof (hereinafter referred to as component (A2)), the total content of component (A1) and component (A2) in component (A) being 99 mass% or more. The mass ratio (A1) / (A2) of the content of the component (A1) to the content of the component (A2) is 0.2-2.4 (inclusive).
Owner:KAO CORP

Aliphatic polyester, resin composition, method for producing a shaped article and aliphatic polyester, and block copolymer, resin composition and shaped article

PendingCN122341671ACarbon numberPolymer science
This invention relates to: an aliphatic polyester containing structural units (a1) derived from an aliphatic diol having alkyl branches and a main chain having 3 or more carbon atoms and structural units (a2) derived from an aliphatic dicarboxylic acid, and satisfying specific conditions; a resin composition comprising the aliphatic polyester and a molded article thereof; a method for manufacturing the aliphatic polyester satisfying the specific structure and conditions; a block copolymer satisfying the specific structure and conditions; a resin composition comprising the block copolymer and a molded article thereof; and a method for manufacturing the block copolymer satisfying the specific structure and conditions (the specific structures and conditions are as described in the specification).
Owner:KURARAY CO LTD

Antifoaming agent for nonaqueous coating materials

PCT designated stage expiredWO2025126669A1CoatingsFoam dispersion/preventionCarbon numberPolymer science
Provided is an antifoaming agent for nonaqueous coating materials which inhibits nonaqueous coating materials from foaming, has excellent antifoaming properties, is highly effective in preventing the occurrence of bubble-pop marks, and can give coating films without bubble-pop marks while retaining the intact smoothness. The antifoaming agent for nonaqueous coating materials comprises a copolymer of 0.1-40 parts by mass of a siloxy-group-containing vinyl monomer (A) and 60.0-99.9 parts by mass of an alkyl vinyl monomer in which the alkyl group has 1-24 carbon atoms, wherein the copolymer has a weight-average molecular weight of 10,000-500,000.
Owner:KYOEISHA CHEM CO LTD

Polylysine ester hydrochloride as well as preparation method and application thereof

The invention discloses a polylysine ester hydrochloride and a preparation method and application thereof, and belongs to the field of chemical synthesis technology and biological application, the structural formula of the polylysine ester hydrochloride is as shown in # imgabs0 #, in the formula, R is selected from any one of alkyl groups with the carbon number smaller than 10, preferably methyl, ethyl, propyl, isopropyl, n-butyl or tertiary butyl; n ranges from 20 to 40; the preparation method of the polylysine ester hydrochloride provided by the invention is simple in steps and simple in subsequent treatment, and the prepared product polylysine ester hydrochloride has a certain antibacterial property and can be well applied to the fields of daily chemicals, foods, medicines, biology and the like.
Owner:ZHEJIANG SCI-TECH UNIV +1

Polyether resin, method for producing same, and use thereof

Provided is a polyether-based resin exhibiting high refractive index and heat resistance. A polyether-based resin containing a double polycyclic arylfluorene ether unit represented by formula (1) and an aliphatic ether unit represented by formula (2) is prepared. (In formula (1), ring Z1a and ring Z1b each independently represent a polycyclic aromatic hydrocarbon ring, R1a and R1b each independently represent a substituent, n1 and n2 each independently represent an integer of 0 or more, R2a and R2b each independently represent a substituent, and m1 and m2 each independently represent an integer of 0-4. ) (In formula (2), A1 represents an alkylene group having 2 or more carbon atoms. > # imgabs0 #
Owner:OSAKA GAS CHEM KK

Pressure-sensitive adhesive composition, pressure-sensitive adhesive film and surface protective film of polarizing plate

To provide a pressure-sensitive adhesive composition having anti-static performance and an excellent balance of adhesive strength between low and high speed peeling regions, and further being excellent in durability, reworkability, and anti-static property, a pressure-sensitive adhesive film, and a surface protective film of a polarizing plate.SOLUTION: A pressure-sensitive adhesive composition is formed of a copolymer containing a (meth)acrylate ester monomer having a 4-10C alkyl group (A), a hydroxy group-containing copolymerizable monomer (B), a carboxy group-containing copolymerizable monomer (C), and a polyalkylene glycol mono(meth)acrylate monomer (D), and further contains a 3 or more functional isocyanate compound (E), an anti-static agent (H), and a polyether-modified siloxane compound (I), and weight ratios of them based on (A) 100 are (B) 0.1-5.0, (C) 0.35-1.0, and (D) 1-20, and those based on copolymer 100 are (E) 0.5-5.0 and (I) 0.01-0.5.SELECTED DRAWING: None
Owner:ZACROS CORP

Composite solution capable of selectively removing carbonyl sulfide in airflow and application of composite solution

The invention belongs to the technical field of gas desulfurization and purification, and relates to a composite solution capable of selectively removing carbonyl sulfide in gas flow and application of the composite solution, the composite solution comprises an amide compound, alkyl alcohol amine and a solvent, and the mass ratio of the amide compound to the alkyl alcohol amine is 2: 3-3: 2; the structural formula of the amide compound is as follows: # imgabs0 #, wherein R1 is an alkane branched chain of which the carbon number is greater than or equal to 2; r2 is an alkane branched chain with an element O or N; and R3 is a substituent group with an aromatic structure. The composite solution is used for selectively removing carbonyl sulfide in a gas flow containing carbon dioxide. Compared with the prior art, the composite solution disclosed by the invention can be used for inhibiting the absorption of carbon dioxide while realizing efficient removal of carbonyl sulfide, so that the regeneration energy consumption is greatly reduced, and deep desulfurization requirements under special occasions can be met.
Owner:EAST CHINA UNIV OF SCI & TECH

Renewable hydrocarbon composition

Provided herein are renewable hydrocarbon compositions comprising n-paraffins and isoparaffins wherein the total amount of any C8-C16 isoparaffins is from 50 to 94 wt% of the total weight of the hydrocarbon composition, the hydrocarbon composition has a kinematic viscosity of from 3.7 to 8 mm2 / s at-20 DEG C, and the weighted average carbon number of the hydrocarbons in the hydrocarbon composition is from 12.1 to 14.2.
Owner:NESTE OYJ

Fluorine-containing ether composition, coating liquid, and article

Provided are a fluorine-containing ether composition and a coating liquid which are capable of forming a surface layer having excellent water droplet slipping properties, and an article having a surface layer having excellent water droplet slipping properties. A fluorine-containing ether composition containing a fluorine-containing ether compound (A) and a fluorine-containing ether compound (B), the compound (A) and the compound (B) each having a poly (oxyperfluoroalkylene) chain, a perfluoroalkyl group bonded to one end thereof, and a group represented by formula (I), in the combination of the compound (A) and the compound (B) contained in the composition, the number of carbon atoms of the perfluoroalkyl group contained in the compound (A) is less than the number of carbon atoms of the perfluoroalkyl group contained in the compound (B), and the content of the compound (A) is 30-95 mass% with respect to the total amount of the compound (A) and the compound (B). In-SiRnL3-n (I), L is a hydroxyl group or a hydrolyzable group, R is a hydrogen atom or a monovalent hydrocarbon group, and n is an integer of 0-2.
Owner:AGC INC

Color filter coloring composition and color filter

To provide a coloring composition high in coloring, transmittance, and heat resistance contributing to thinning of a color filter.SOLUTION: This color filter coloring composition comprises: a cationic part represented by a general formula (1); and a pigment (A) which is a product salt-formed with an anionic part. (In the general formula, R1-R4 are independent of each other and represent a hydrogen atom, an alkyl group of a carbon number of 1-20, an alkenyl group of a carbon number of 2-20, and an aryl group of a carbon number of 6-20, these may have substituent groups, a bivalent organic group may enter between terminals thereof or the carbon atoms, R1 and R2, and R3 and R4 may be connected to form a ring, and the bivalent organic group may enter during formation of the ring).SELECTED DRAWING: Figure 1
Owner:TOYO INK MFG CO LTD

A method for preparing a high carbon number diiodoperfluoroalkane

ActiveCN117843440BAlkaneCarbon number
The application relates to the technical field of fluorine-containing iodoalkane preparation, in particular to a preparation method of high-carbon-number diiodoperfluoroalkane, which comprises the following steps: reacting tetrafluoroethylene and elemental iodine to generate diiodotetrafluoroethane; and under the action of a catalyst, the diiodotetrafluoroethane is subjected to telomerization reaction with tetrafluoroethylene to generate high-carbon-number diiodoperfluorobutane and diiodoperfluorohexane; and the catalyst is a metal nickel catalyst supported on silicon dioxide. The metal nickel catalyst supported on silicon dioxide is used to make the diiodotetrafluoroethane and the tetrafluoroethylene subjected to telomerization reaction to obtain diiodoperfluoroalkane with higher carbon number. The application has the advantages of simple process, low reaction temperature and the like, and can significantly improve the yield of diiodoperfluorobutane and diiodoperfluorohexane.
Owner:ZHONGHAO CHENGUANG RES INST OF CHEMICALINDUSTRY CO LTD