WO2008044513A1 - Film poreux à couches multiples et séparateur pour accumulateur secondaire à électrolyte non aqueux - Google Patents
Film poreux à couches multiples et séparateur pour accumulateur secondaire à électrolyte non aqueux Download PDFInfo
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- WO2008044513A1 WO2008044513A1 PCT/JP2007/069144 JP2007069144W WO2008044513A1 WO 2008044513 A1 WO2008044513 A1 WO 2008044513A1 JP 2007069144 W JP2007069144 W JP 2007069144W WO 2008044513 A1 WO2008044513 A1 WO 2008044513A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/325—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polycycloolefins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
- H01M50/417—Polyolefins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/409—Separators, membranes or diaphragms characterised by the material
- H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2250/00—Layers arrangement
- B32B2250/24—All layers being polymeric
- B32B2250/242—All polymers belonging to those covered by group B32B27/32
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/10—Inorganic particles
- B32B2264/105—Metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/702—Amorphous
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/71—Resistive to light or to UV
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/724—Permeability to gases, adsorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/732—Dimensional properties
- B32B2307/734—Dimensional stability
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/10—Batteries
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
Definitions
- the present invention relates to a separator for a laminated porous film and a non-aqueous electrolyte secondary battery.
- the present invention relates to a laminated porous film and a separator for a non-aqueous electrolyte secondary battery comprising the laminated porous film.
- Laminated porous films are used as separators in non-aqueous electrolyte secondary batteries such as lithium secondary batteries.
- non-aqueous electrolyte secondary battery separators when an abnormal current flows in the battery due to a short circuit between the positive and negative electrodes, the current is interrupted to prevent excessive current from flowing (shutdown) to) and this and force? important, in the separator, when it exceeds the normal operating temperature, a temperature as low as possible in shirt Toda ⁇ down to it and, after shutdown, the temperature in the battery up to a certain high temperature rise Even so, there is a need to maintain the shutdown state without breaking the film due to the temperature.
- the present invention can be used as a battery separator and can be shut down at a low temperature when the normal operating temperature is exceeded.
- An object of the present invention is to provide a laminated porous film that can maintain a shut-down state even if the temperature in the battery rises to a high temperature, without causing film breakage due to the temperature.
- the present invention provides the following inventions.
- Ethylene- ⁇ -olefin is composed of a structural unit derived from ethylene and a structural unit derived from one or more monomers selected from ⁇ -aged olefins having 4 to 10 carbon atoms.
- a laminated porous film comprising a heat-resistant resin layer laminated on a porous film formed from a polyolefin-based resin containing a polymer, a shutdown temperature of 125 or less and a thermal film breaking temperature of 155 or more.
- the intrinsic viscosity [ 7 ] of the ethylene / ⁇ -year-old olefin copolymer is 9.1 d 1 ⁇ g or more and 1 5.0 dl Zg or less, and 1 000 carbon atoms in the copolymer Number of short chain branches per unit (SCB) force '4.
- the polyolefin resin wherein the polyolefin resin includes 100 parts by weight of the ethylene "" -olefin copolymer and 5 to 200 parts by weight of low molecular weight polyolefin having a weight average molecular weight of 10,000 or less.
- the laminated porous film according to any one of to ⁇ 4>.
- the heat-resistant resin constituting the heat-resistant resin layer is a group consisting of polypropylene, poly-4-methylpentene-1, a polymer containing a nitrogen atom, and a cyclic olefin-based polymer.
- a separator for a non-aqueous electrolyte secondary battery comprising the laminated porous film according to any one of ⁇ 1> to ⁇ 6>.
- a nonaqueous electrolyte secondary battery comprising the separator for nonaqueous electrolyte secondary batteries according to ⁇ 7>.
- the laminated porous film of the present invention can be used as a battery separator and can be shut down at a low temperature when the normal operating temperature is exceeded. After the shutdown, the temperature in the battery is increased to a certain high temperature. Even if the temperature rises, the shut-down state can be maintained without film breakage due to the temperature. That is, the present invention is extremely useful industrially because it has excellent thermal film breakage characteristics.
- Fig. 1 is a schematic diagram of an internal resistance measuring device. Explanation of symbols
- the present invention relates to an ethylene / ⁇ -age refin comprising a constitutional unit derived from ethylene and a constitutional unit derived from one or more monomers selected from ⁇ -agen olefins having 4 to 10 carbon atoms.
- a laminated porous film in which a heat-resistant resin layer is laminated on a porous film made of a polyolefin resin containing polymer, the shutdown temperature is 1 25 or less, and the thermal film breaking temperature is 1 55 or more Provide a protective film.
- the shutdown temperature means the temperature at which the impedance at 1 kHz reaches 1 000 ⁇ when the internal resistance of the laminated porous film is measured
- the thermal film breaking temperature is This means the temperature at which the laminated porous film breaks and the internal resistance begins to decrease in measurement when the temperature is further increased after shutdown.
- the lower limit of the shutdown temperature is usually 100 ° C.
- the puncture strength of the laminated porous film is 250 gf or more.
- the puncture strength of the laminated porous film is 250 gf or more.
- it is derived from ethylene contained in the polyolefin resin constituting the porous film.
- the intrinsic viscosity [] of the ethylene′-olefin copolymer comprising a structural unit derived from one or more types of monomers selected from ⁇ -olefins having 4 to 10 carbon atoms.
- 9. 1 d 1 or more 1 5. 0 d 1 / g or less, and the number of short chain branches per 1 000 carbon atoms in the copolymer (SCB) force s 4. 8 or more 20. 0 that force? good Masui is less than or equal to.
- the intrinsic viscosity in the present invention is a value measured in tetrahydronaphthalene (trade name: Tetralin) at 13.5. Further, in the present invention, ethylene alpha -. O Les fins copolymer short chain branching number of 1 per 000 carbon atoms in the (SCB) is "high molecular analysis Handbook" (Japan Society for Analytical Chemistry, Polymer Analysis Research Roundtable) ⁇ 590 1
- SCB infrared spectrophotometer
- the laminated porous film of the present invention preferably has a shutdown temperature of 120 or less.
- the ⁇ -year-old olefin copolymer has an intrinsic viscosity [ ⁇ ] strength of 9. ldl Zg or more and 15.0 dl Zg or less, and per 1000 carbon atoms in the copolymer.
- short chain branching number (SCB) is 4.
- the ethylene 'beta _ Orefuin copolymer cold xylene-contained in the body soluble portion (CXS) is 1.2 or more 6. Less than 0 force 5 'is preferred.
- the ethylene. O CXS Les fin copolymer is 1.43 or more 5.60
- the cold xylene-soluble portion in a more preferable Re 0 It should be noted that the present invention be less, ethylene 'alpha-old Refuin copolymerization When 5 g of the coal is added to 1000 milliliters of xylene at 25 ° C, the weight of the soluble component is expressed as a percentage of the initial weight (ie 5 g) That is.
- the ethylene ' ⁇ -olefin copolymer used in the present invention contains, for example, a titanium atom, a magnesium atom, a halogen atom, and an ester compound, and has a specific surface area of 80 m 2 Zg or less by BET method (" ) And an organoaluminum compound () in the presence of a polymerization catalyst, copolymerized with ethylene and at least one monomer selected from ⁇ -olefins having 4 to 10 carbon atoms “One olefin with 4 to 10 carbon atoms includes 1-butene, 1-pentene, 4-methyl-1-pentene, 1-hexene, 1-octene, 1-nonene, 1-decene, etc. It can be mentioned.
- the 1-year-old olefin of the ethylene / polyolefin copolymer is preferably 1-butene or 1-hexene.
- the specific surface area of the solid catalyst component ( ⁇ ) by the BET method is 80 m 2 Zg or less, preferably 0.05 to 50 m 2 / g, more preferably 0.1 to 30 m 2 Zg.
- the specific surface area can be reduced by including a sufficient amount of an ester compound in the solid catalyst component ( ⁇ ).
- the content of the ester le compound in the solid catalyst component (alpha) is the total of the dried solid catalyst component when you is 100% by weight, preferably 1 5 to 50 weight 0/0. More preferably Ri 20-40 weight 0/0 der, more preferably from 22 to 35 wt%.
- ester compound in the solid catalyst component (ff) examples include mono- or polyvalent carboxylic acid ester power, such as saturated aliphatic carboxylic acid ester, unsaturated aliphatic carboxylic acid ester, alicyclic carboxylic acid ester, aromatic Group carboxylic acid esters. Specific examples include methyl acetate, ethyl acetate, phenyl acetate, methyl propionate, ethyl ethyl propionate, ethyl ethyl butyrate, ethyl ethyl valerate, methyl methacrylate, ethyl ethyl benzoate, butyl benzoate, and toluic acid.
- mono- or polyvalent carboxylic acid ester power such as saturated aliphatic carboxylic acid ester, unsaturated aliphatic carboxylic acid ester, alicyclic carboxylic acid ester, aromatic Group carboxylic acid esters. Specific examples include methyl acetate,
- the ester compound is mainly an ester compound used in the process of preparing the solid catalyst component ( ⁇ ) or an ester compound produced by a reaction in the process of preparing the solid catalyst component (").
- an ester compound is produced in the ester compound or reaction system in the preparation process of the solid catalyst component described in JP-A No. 11-3 2 2 8 3 3. It can be obtained by coexisting a compound that can be obtained.
- preparation methods (1) to (5) may be mentioned.
- a method of contacting a solid component, a halogenated compound and an ester compound containing a magnesium atom, a titanium atom and a carbyloxy group having a hydrated mouth A method of contacting a solid component, a halogenated compound and an ester compound containing a magnesium atom, a titanium atom and a carbyloxy group having a hydrated mouth.
- the method (5) is suitable, and a solid component (a) containing a magnesium atom, a titanium atom and a hydrocarbyloxy group, a halogenated compound (b) and a phthalic acid derivative (c) are contacted.
- a solid component (a) containing a magnesium atom, a titanium atom and a hydrocarbyloxy group, a halogenated compound (b) and a phthalic acid derivative (c) are contacted.
- the method of making it preferable is. The details will be described below.
- the solid component (a) used in the present invention comprises an organic compound (i) having an S i-0 bond and an organic compound (i) represented by the following general formula [1]. It is a solid component obtained by reduction with a magnesium compound (iii). In this case, if the ester compound (iv) is allowed to coexist as an optional component, the polymerization activity may be further improved.
- a represents a number of 1 to 20
- R 2 represents a hydrocarbon group having 1 to 20 carbon atoms.
- X 2 represents a halogen atom or a carbon atom number of 1 to 20, respectively. And all X 2 may be the same or different.
- Examples of the organic silicon compound (i) having a S i 0 bond include compound strengths represented by the following general formula.
- R 1Q represents a hydrocarbon group having 1 to 20 carbon atoms
- R n , R 12 , R 13 , R 14 and R 15 are each independently a hydrocarbon group having 1 to 20 carbon atoms.
- Or represents a hydrogen atom.
- t represents an integer satisfying 0 ⁇ t ⁇ 4, u represents an integer of 1 to 100000, and V represents an integer of 2 to 1000.
- organocatheter compounds (i) include tetramethoxysilane, dimethyldimethoxysilane, tetraethoxysilane, triethoxyethylsilane, diethoxyjetylsilane, ethoxytriethylsilane, tetraisopropoxysilane, diisopropoxy-diisoprovirsilane, tetrapropoxysilane.
- the titanium compound (ii) is a titanium compound represented by the following general formula [I].
- a represents a number of 1 to 20; R 2 represents a hydrocarbon group having 1 to 20 carbon atoms; X 2 represents a halogen atom or a carbon atom number 1; Represents a hydrocarbon oxy group having ⁇ 20, and all X 2 may be the same or different.) R 2 is a hydrocarbon group having 1 to 20 carbon atoms.
- R 2 examples include alkyl groups such as a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, an amyl group, an isoamyl group, a hexyl group, a heptyl group, an octyl group, a decyl group, and a dodecyl group.
- Phenyl groups such as phenyl groups, cresyl groups, xylyl groups, naphthyl groups, cycloalkyl groups such as cyclohexyl groups, cyclopentyl groups, aryl groups such as propenyl groups, aralkyl groups such as benzyl groups, etc. Is mentioned.
- hydrocarbon groups an alkyl group having 2 to 18 carbon atoms or an aryl group having 6 to 18 carbon atoms is preferable. More preferably, it is a linear alkyl group having 2 to 18 carbon atoms.
- X 2 is each a halogen atom or a hydrocarbon oxy group having 1 to 20 carbon atoms.
- the halogen atom in X 2 include a chlorine atom, a bromine atom, and iodine atomic energy. Particularly preferred is a chlorine atom.
- the hydrocarbon oxy group having 1 to 20 carbon atoms in X 2 is a hydrocarbon oxy group having a hydrocarbon group having 1 to 20 carbon atoms in the same manner as R 2 .
- X 2 is particularly preferably an alkoxy group having a linear alkyl group having 2 to 18 carbon atoms.
- a is a number from 1 to 20, preferably 1 ⁇ a ⁇ 5.
- titanium compound (ii) examples include tetramethoxy titanium, tetraethoxy titanium, tetra n-propoxy titanium, tetra is 0-propoxy titan, tetra n-butoxy titanium, tedra is 0-butoxy titan, and n-butoxy.
- a condensate of tetraalkoxytitanium obtained by reacting tetraalkoxytitanium with a small amount of water can also be mentioned.
- the titanium compound (ii) is preferably a titanium compound in which a is 1, 2 or 4 in the titanium compound represented by the above general formula [I]. Particularly preferred is tetra n-butoxy titanium, tetra n-butyl titanium dimer or tetra n-butyl titanium tetramer. Titanium compound (ii) may be used alone or in a mixed state.
- the organomagnesium compound (iii) is any type of organomagnesium compound having a magnesium-carbon bond.
- a Grignard compound represented by the general formula R 16 MgX 5 (wherein Mg represents a magnesium atom, R 16 represents a hydrocarbon group having 1 to 20 carbon atoms, and X 5 represents a halogen atom).
- dihydrocarbyl represented by the general formula R 17 R 18 Mg (wherein Mg represents a magnesium atom and R 17 and R 18 each represent a hydrocarbon group having 1 to 20 carbon atoms).
- Magnesium is preferably used.
- R 17 and R 18 may be the same or different.
- R 16 to R 18 for example, a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, a sec-fu "nearliest, a tert-butylene, a isoamyl group, a hexyl group, an octyl group,
- alkyl groups having 1 to 20 carbon atoms such as 2-ethylhexyl group, phenyl group, and benzyl group, aryl group, aralkyl group, and alkenyl group, particularly Grignard compounds represented by R 16 MgX 5 force s' polymerization activity for use in ether solution, from the viewpoint of stereoregularity.
- organomagnesium compound (iii) can also be used as a complex with other organometallic compounds solubilized in a hydrocarbon solvent.
- organometallic compounds examples include compound power of lithium, beryllium, aluminum or zinc
- ester compound (iv) which is an optional component examples include mono- or polyvalent carboxylic acid esters, and examples thereof include saturated aliphatic carboxylic acid esters, unsaturated aliphatic carboxylic acid esters, and alicyclic carboxylic acid esters. And aromatic carboxylic acid esters. Specific examples include: methyl acetate, ethyl acetate, phenyl acetate, methyl propionate, ethyl propionate, ethyl butyrate, ethyl valerate, ethyl allylate, methyl methacrylate, ethyl benzoate, butyl benzoate, and methyl toluate.
- ester compounds preferred are unsaturated aliphatic rubonic acid esters such as methacrylic acid esters and maleic acid esters, and aromatic carboxylic acid esters such as phthalic acid esters, and particularly preferred are dialkyl phthalates.
- the solid component (a) is obtained by combining the titanium compound (ii) with the organic magnesium compound (iii) in the presence of the organic compound (i) or in the presence of the organic compound (i) and the ester compound (iv). It can be obtained by reduction. Specifically, a method is preferred in which the organomagnesium compound (i i i) is added to a mixture of the organosilicon compound (i), the titanium compound (ii) and, if necessary, the ester compound (iv).
- the titanium compound (ii), the organosilicon compound (i) and the ester compound (iv) are preferably used by dissolving or slurrying them in a suitable solvent.
- a suitable solvent such solvents and Hexane, heptane, octane, decane and other aliphatic hydrocarbons, toluene, xylene and other aromatic hydrocarbons, cyclohexane, methylcyclohexane, decalin and other alicyclic hydrocarbons, jetyl ether , Ether compounds such as dibutyl ether, diisoamyl ether, and tetrahydrofuran.
- the temperature range of the reduction reaction temperature is usually from 50 to 70 ° C, preferably from 1 to 30 to 50 ° C, particularly preferably from 1 to 25 to 35.
- the input time of organomagnesium (iii) is not particularly limited, but is usually about 30 minutes to 1.0 hour.
- a post reaction may be performed at a temperature of 20 to 120.
- a porous carrier such as an inorganic oxide or an organic polymer can coexist and the porous carrier can be impregnated with a solid component.
- the porous carrier used may be a known one. Specific examples, S I_ ⁇ 2, A 1 2 0 3, MgO, T i 0 2, porous inorganic oxides typified by Z r 0 2, etc., or polystyrene, styrene emissions one divinylbenzene copolymer, Styrene monoethylene glycol dimethyl methacrylate copolymer, polymethyl acrylate, polyethyl acrylate, methacrylic acid methyl monodivinylbenzene copolymer, polymethyl methacrylate, methyl methacrylate monodivinylbenzene copolymer, poly And organic porous polymers such as acrylonitrile, acrylonitrile-divinylbenzene copolymer, polyvinyl chloride, polyethylene, and polypropylene.
- an organic porous polymer is preferably used, and a styrene-divinylbenzene copolymer or an acrylonitrile-divinylbenzene copolymer is particularly preferable.
- the pore volume at a pore radius of 20 nm to 200 nm of the porous support is preferably 0.3 cm 3 / g or more, more preferably 0.4 from the viewpoint of effectively immobilizing the catalyst component. cm 3 Z g or more, and the pore volume power in the range of pore radius?, pore radius 3. 5 nm to 7500 of pore volume in nm preferably 35% or more, good Ri preferably 40% or more Is a carrier.
- the catalyst component cannot be effectively immobilized unless it is sufficiently present within the pore radius range of 20 nm to 200 nm. In some cases, it is not preferable.
- the molar ratio of MgZT i in the solid catalyst component is usually 1 to 51, preferably 2 to 31 and particularly preferably 4 to 26, so that the titanium compound (ii), organic Determine the dosage of the key compound (i) and organomagnesium compound (iii).
- the solid component obtained by the reduction reaction is usually separated into solid and liquid and washed several times with an inert hydrocarbon solvent such as hexane, heptane, toluene.
- the solid component (a) thus obtained contains a trivalent titanium atom, a magnesium atom, and a nodose carbyloxy group, and is generally amorphous or extremely weakly crystalline. From the viewpoint of polymerization activity and cubic regularity, an amorphous structural strength is particularly preferable.
- the halogenated compound is preferably a compound capable of substituting the hydrocarbonoxy group in the solid component (a) with a halogen atom. More preferably, it is a halogen compound of Group 4 element of the periodic table, a halogen compound of Group 13 element, or a halogen compound of Group 14 element, and more preferably, a halogen compound (bl) of Group 4 element or Group 14 element. Elemental halogen compound (b 2).
- Group 4 element halogen compound (b 1) is preferably represented by the general formula M 1 (OR 9 ) b X 4 4. b (wherein M 1 represents a Group 4 atom and R 9 represents the number of carbon atoms.
- M 1 to 20 represents a hydrocarbon group
- X 4 represents a halogen atom
- b represents a number satisfying 0 ⁇ b ⁇ 4.
- M 1 include a titanium atom, a zirconium atom, and a hafnium atomic energy s. Among them, a titanium atom is preferable.
- R 9 for example, methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, tert-butyl group, amyl group, isoamyl group, tert-amyl group, hexyl group, heptyl group, octyl group And alkyl groups such as decyl and dodecyl groups, phenyl groups, cresyl groups, xylyl groups, aryl groups such as naphthyl groups, aryl groups such as propenyl groups, and aralkyl groups such as benzyl groups.
- an alkyl group having 2 to 18 carbon atoms or an aryl group having 6 to 18 carbon atoms is preferable. Particularly preferred is a linear alkyl group having 2 to 18 carbon atoms. It is also possible to use a Group 4 element halogen compound having two or more different OR 9 groups.
- halogen atom represented by X 4 examples include a chlorine atom, a bromine atom, and an iodine atom. Of these, a chlorine atom is particularly preferred.
- b is a number that satisfies 0 ⁇ b ⁇ 4, and preferably 0 ⁇ b ⁇ 2.
- 1) 0.
- -Halogen compounds represented by the general formula 1 ⁇ 1 (OR 9 ) b X 4 4 _ b include, for example, titanium tetrachlorides such as titanium tetrachloride, titanium tetrabromide, and titanium tetraiodide, and methoxy.
- Trihalogenated alkoxy titanium such as titanium trichloride, ethoxy titanium trichloride, butoxy titanium trichloride, phenoxy titanium trichloride, ethoxy titanium tribromide, dimethoxy titan dichloride, diethoxy titanium dichloride
- Dihalogenated dialkoxytitanium such as dibutoxytitanium dichloride, diphenoxytitanium dichloride, diethoxytitanium dibromide, etc., as well as the corresponding zirconium compounds and hafnium compounds Can be mentioned.
- thiotetrachloride Is tan
- the halogen compound of group 1 element of group 13 or the halogen compound of group 14 element (b 2) is preferably represented by the general formula MZ R i ⁇ c XS c (wherein M 2 is group 1 or group 1 Represents a Group 4 atom, R 1 represents a hydrocarbon group having 1 to 20 carbon atoms, X 8 represents a halogen atom, m represents a number corresponding to the valence of M 2 c is It represents a number that satisfies 0 ⁇ c ⁇ m.
- M 2 is group 1 or group 1 Represents a Group 4 atom
- R 1 represents a hydrocarbon group having 1 to 20 carbon atoms
- X 8 represents a halogen atom
- m represents a number corresponding to the valence of M 2 c is It represents a number that satisfies 0 ⁇ c ⁇ m.
- the first group III atoms referred to herein for example, Hoke atom, aluminum atom, a gall
- boron atom or an aluminum atom is preferably a boron atom or an aluminum atom, more preferably an aluminum atom is there.
- the Group 14 atom include a carbon atom, a key atom, a germanium atom, a tin atom, and a lead atom, preferably a key atom, a germanium atom, or a tin atom.
- Preferred is a silicon atom or a tin atom.
- c is a number satisfying 0 ⁇ c ⁇ m.
- M 2 is a key atom
- c is preferably 3 or 4.
- halogen atom represented by X s examples include a fluorine atom, a chlorine atom, a bromine atom, and an iodine nuclear power 5 ′, and preferably a chlorine atom.
- R 1 examples include a methyl group, an ethyl group, a normal propyl group, an isopropyl group, a normal butyl group, an isobutyl group, an amyl group, an isoamyl group, a hexyl group, a heptyl group, an octyl group, a decyl group, and a dodecyl group.
- Alkyl groups such as alkyl groups, phenyl groups, tolyl groups, cresyl groups, xylyl groups, naphthyl groups, etc., cycloalkyl groups such as cyclohexyl groups, cyclopentyl groups, alkenyl groups such as propenyl groups, benzyl groups, etc.
- Aralkyl group is listed.
- An alkyl group or an aryl group is preferable, and a methyl group, an ethyl group, a normal propyl group, a phenyl group, or a paratolyl group is particularly preferable.
- halogen compounds of Group 13 elements include trichloroborane and methyl Borane, Ethyldichloroborane, Phenyldichloroborane, Cyclohexyldichloroborane, Dimethylchloroborane, Methyl acetylchloroborane, Trichloroaluminum, Methyldichloroaluminum Aluminum, Ethyldichloroaluminum Aluminum, Phenyldichloroaluminum Aluminum, Cyclohexyldichloro Mouth Aluminum, Dimethylchloroaluminum, Jetyl Chloro Mouth Aluminum, Methyl Ethyl Chloro Aluminum Nitride, Ethyl Aluminum Sesquik Mouth Ride, Gallium Chloride, Gallium Di Chloride, Trichloro Mouth Gallium, Methyl Dichloro Mouth Gallium, Ethyl Dichlorogallium, Phenyl Dichloro Mouth
- the halogen compounds of group 14 elements include teraginal lometa, chloromethane, dichloromethane, dichloromethane, monochloromethane, 1 1, 1 _tric OO J-tan, 1, 1-dichloro Ethane, 1,2-dichloroethane, 1,1,2,2-tetrachloroethane, tetrac ⁇ silane, trichloro silane, methyl chloro silane, ethyl trichloro silane, normal propyl chloro ⁇ silane, normal butyl trichloro silane, Phenyltrichlorosilane, benzyltricyl silane, silane, Lathryl trichlorosilane, cyclohexyl chlorosilane, dichlorosilane, methyldichlor
- halogenated compound (b) from the viewpoint of polymerization activity, titanium tetrachloride, methyl dichroic aluminum, ethyl dichroic aluminum, tetrachlorosilane, phenyltrichlorosilane, methyltrichlorosilane, etyltrichlorosilane, normal propyltrichlorosilane, or tetrachloro O tin
- the halogenated compound (b) may be used alone from the above compounds, or a plurality of types may be used simultaneously or sequentially.
- Examples of the phthalic acid derivative (c) include compounds represented by the following general formula.
- each of R 24 to R 2 7 independently represent a hydrogen atom or a hydrocarbon group, or S 6 and S 7 are each independently a halogen atom, or a hydrogen atom, a carbon atom, the SansoHara terminal and a halogen atom It is a substituent formed by arbitrarily combining a plurality of them.
- R 24 to R 2 7 are preferably a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms, and any combination of R 24 to R 2 7 is bonded to each other to form a ring structure. May be.
- S 6 and S 7 are preferably each independently a chlorine atom, a hydroxyl group, or an alkoxy group having 1 to 20 carbon atoms.
- phthalic acid derivative (c) examples include phthalic acid, monoethyl phthalate, dimethyl phthalate, methyl ethyl phthalate, jetyl phthalate, di-propyl phthalate, diisopropyl phthalate, di-normal phthalate, di-phthalate Isobutyl, dipentyl phthalate, di-normal hexyl phthalate, di-normal heptyl phthalate, di-isoheptyl phthalate, di-normal octyl phthalate, di- (2-ethylhexyl) phthalate, di-normal decyl phthalate, Diisodecyl phthalate, dicyclohexyl phthalate, diphenyl phthalate, dichloride phthalate, 3-ethyl phthalate, 4-methyl phthalate, 3-methyl dimethyl phthalate, 3-methyl di-normal butyl, 4-methyl phthalate Acid dinor Dibutyl but
- the esters contained in the solid catalyst component of the present invention are dialkyl phthalates, they are derived from phthalic acid derivatives, and are compounds in which S 6 and S 7 are alkoxy groups in the above general formula.
- S 6 and S 7 of the phthalic acid derivative (c) used can be exchanged as they are or with other substituents.
- the solid catalyst component ( ⁇ ) used in the present invention is composed of an organic key compound having a Si-0 bond (in the presence of 0, a titanium compound (ii) represented by the general formula [I]
- the solid component (a), the halogenated compound (b), and the phthalic acid derivative (c) obtained by reduction with the shim compound (iii) are contacted with each other. All of these contact treatments are usually performed in an inert gas atmosphere such as nitrogen gas or argon gas. As a specific method of the contact treatment to obtain the solid catalyst component (.),
- the polymerization activity may be improved by repeating the contact treatment with (b 1) several times thereafter.
- each component such as a slurry method or a mechanical grinding means such as a ball mill is contacted.
- mechanical grinding is carried out by any known method that can be touched, a large amount of fine powder is generated in the solid catalyst component, and the particle size distribution may be broadened. It is not preferable. Therefore, it is preferable to bring both into contact in the presence of a solvent.
- the next operation can be performed as it is. 5 In order to remove surplus, it is preferable to perform a washing treatment with a solvent.
- the solvent is preferably inert to the component to be treated.
- Specific examples include aliphatic hydrocarbons such as pentane, hexane, heptane, and octane, aromatic hydrocarbons such as benzene, toluene, and xylene, Alicyclic hydrocarbons such as cyclohexane and cyclopentane, and halogenated hydrocarbons such as 1,2-dichloroethane and monochlorobenzene can be used.
- the amount of the solvent used in the contact treatment is usually 0.1 m 1 to 100 m per solid component (a) lg per one-step contact treatment. Preferably, it is 1 m 1 to 10 O m 1 per 1 g. In addition, the amount of solvent used in a single washing operation is similar.
- the number of cleaning operations in the cleaning process is usually 1 to 5 times per one-step contact process.
- the contact treatment and cleaning treatment temperatures are each generally a force of ⁇ 50 to 1550, preferably 0 to 14 Ot :, and more preferably 60 to 13 ° C.
- the contact treatment time is not particularly limited, preferably 0.5 to 8 hours, and more preferably 1 to 6 hours.
- the washing operation time is not particularly limited, but is preferably 1 to 120 minutes, and more preferably 2 to 60 minutes.
- the amount of the phthalic acid derivative (c) to be used is usually from 0.1 to 100 mmol, preferably from 0.05 to 50 mmol, more preferably from 0 to 1 g per 1 g of the solid component (a). 1 to 20 mmol.
- the amount of phthalic acid derivative (c) is excessively have large, it forces 5 made wider particle size distribution of the solid catalyst component by the collapse of the particle (shed), Mel o
- the amount of the phthalic acid derivative (c), the solid catalyst component ( ") that force is? Be arbitrarily adjusted in such a manner that the content of Fuyurusan ester is suitably in the.
- the solid component (a) is usually 0.1 to 100 mmol per 1 £, preferably 0.3 to 50 mmol, more preferably 0.5 to 20 mmol.
- the amount of the phthalic acid derivative (c) used per mole of magnesium atom in the solid component (a) is usually from 0 to 1.0 mole, preferably from 0.03 to 0.5 mole.
- the amount of the halogenated compound (b) to be used is usually 5 to 1,000 mmol, preferably 1 to 200 mmol, more preferably 2 to 100 mmol, per 1 g of the solid component (a).
- the amount of each compound described above represents the amount of each compound used for each time.
- the obtained solid catalyst component ( ⁇ ) may be used in the polymerization in a slurry form in combination with an inert solvent, or may be used in the polymerization as a fluid powder obtained by drying.
- the drying method include a method of removing volatile components under reduced pressure conditions, and a method of removing volatile components under the flow of an inert gas such as nitrogen gas or argon gas.
- the drying temperature is preferably 0 to 200 ° C, more preferably 50 to 100 ° C.
- the drying time is preferably from 0 to 1 to 20 hours, and more preferably from 0.5 to 10 hours.
- the weight average particle diameter of the solid catalyst component ( ⁇ ) is preferably 1 to 100 / m from the industrial viewpoint.
- a catalyst for polymerization of the ethylene / ⁇ -olefin copolymer used in the present invention can be obtained. If necessary, the electron donating compound (y) can be added and contacted.
- the organoaluminum compound (/?) In the present invention has at least one aluminum-carbon bond in the molecule.
- Typical organoaluminum compounds are shown below in general formula.
- R 20 R 21 A 1 101 A 1 R 22 R 23 (In the general formula, R 1 9 ⁇ R 2 3 represents a hydrocarbon group having a carbon number of 1 ⁇ 2 0, Y represents a halogen atom, a hydrogen atom or an alkoxy group, w is satisfied 2 ⁇ w ⁇ 3 Represents the number to be
- organoaluminum compound () examples include dialkylaluminum hydrides such as trialkylaluminum, triisobutylaluminum, trialkylaluminum and other trialkylaluminum, jetylaluminum hydride, and diisobutylaluminum hydride.
- Dialkylaluminum halides such as jetylaluminum chloride, mixtures of trialkylaluminum and dialkylaluminum halides such as mixtures of triethylaluminum and jetylaluminum chloride, tetraethyldialumoxane, tetrabutyldialmolybdate
- alkylalumoxanes such as xane.
- organoaluminum compounds trialkylaluminum, a mixture of trialkylaluminum and dialkylaluminum halide, or alkylalumoxane is preferable, and triethylaluminum, triisobutylaluminum, and triethylaluminum are particularly preferable. And tetraethyl dialumoxane.
- Examples of the electron donating compound (y) used for forming the polyolefin polymerization catalyst include an oxygen-containing compound, a nitrogen-containing compound, a phosphorus-containing compound, and a sulfur-containing compound, and preferably an oxygen-containing compound.
- Examples of the oxygen-containing compound include alkoxy ketones, ethers, esters, ketones and the like, and preferably alkoxy ketones or ethers.
- Alkoxy cages are represented by the general formula R 3 r S i (OR 4 ) 4 - r (wherein R 3 is a hydrocarbon group having 1 to 20 carbon atoms, a hydrogen atom or a hetero atom-containing substituent. represents, R 4 represents a hydrocarbon group of from 1 to 2 0 carbon atoms, if r is the R 3 and R 4 represent a number satisfying 0 ⁇ r ⁇ 4 there are a plurality, each of R 3 and R 4 Arukokishikei containing compounds force represented by may be different even in the same.)? used.
- the hydrocarbon group include a methyl group, Echiru group, propyl group, butyl group, straight-chain, such as pentyl groups;! Dog alkyl group, an isopropyl group, sec - butyl, tert —Branch alkyl group such as butyl group, tert-amyl group, cycloalkyl group such as cyclopentyl group, cyclohexyl group, cycloalkenyl group such as cyclopentenyl group, aryl group such as phenyl group, tolyl group, etc. ?
- the carbon atom directly bonded to the alkoxy atom of the alkoxycane compound has at least one R 3 which is a secondary or tertiary carbon.
- R 3 is a heteroatom-containing substituent
- examples of the hetero atom include an oxygen atom, a nitrogen atom, a sulfur atom, and a phosphorus atomic energy.
- a dimethylamino group a methylethylamino group, a jetylamino group, an ethyl-1-n-propylamino group, a di-n-propylamino group, a pyrrolyl group, a pyridyl group, a pyridyl group, a piperidyl group, a no, and the like.
- Hydroindolyl group perhydroisoindolyl group, hydroquinolyl group, perhydroisoquinolyl group, perhydrocarbazolyl group, hydroxyacridinyl group, furyl group, villanyl group, perhydrofuryl group, che
- it is a substituent in which the heteroatom can be directly chemically bonded to the silicon atom of the alkoxycatheter compound.
- alkoxycarbons examples include diisopropyldimethyoxysilane, diisobutyldimethyoxysilane, di-tert-butyldimethyoxysilane, tert-butylmethyldimethyoxysilane, tert-butylethyldimethyoxysilane, tert_butyl-1-n-propyldimethyoxysilane, 6 1 "1:- Butyl-11-butyldimethoxysilane, tert-amylmethyldimethoxysilane, tert-amylethyldimethyloxysilane, tert-amyl-n-propyldimethoxysilane, tert-amylu-n-butyldimethoxysilane, isobutylisopropyldimethoxysilane, tert-butylisopropyldimethoxysilane, dichloro
- ethers include cyclic ether compounds.
- the cyclic ether compound is a heterocyclic compound having at least one C 1 0—C 1 bond in the ring structure.
- Cyclic ether compounds include, for example, ethylene oxide, propylene oxide, trimethylene oxide, tetrahydrofuran, 2,5-dimethoxy tetrahydrofuran, tetrahydropyran, hexamethylene oxide, 1,3-dioxepane, 1, 3-Dioxane, 1,4-Dioxane, 1,3-Dioxolane, 2-Methyl_1,3-Dioxolane, 2,2-Dimethyl-1,3-Dioxolan, 4-Methyl_1,3-Dioxolane, 2 , 4-dimethyl-1,3-dioxolane, furan, 2,5-dimethylfuran, or s-trioxane.
- Preferred is a cyclic ether compound having
- esters mono- or polycarboxylic acid ester force
- saturated aliphatic carboxylic acid esters unsaturated aliphatic carboxylic acid esters
- unsaturated aliphatic carboxylic acid esters alicyclic force carboxylic acid esters
- aromatic carboxylic acid esters Can do.
- Specific examples include methyl acetate, ethyl acetate, phenyl acetate, methyl propionate, ethyl propionate, ethyl butyrate, ethyl valerate, ethyl acrylate, methyl methacrylate, ethyl benzoate, butyl benzoate, and tolyl.
- ketones include acetone, methyl ethyl ketone, and methyl isobuty Ruketone, ethylbutylketone, dihexylketone, acetophenone, diphenylketone, benzophenone, cyclohexanone, etc.
- nitrogen-containing compounds examples include 2,6-dimethylbiperidine, 2,2,6,6-tetramethylpiperidine and other 2,6-substituted piperidines, 2,5-substituted piperidines, N , N, N ', N'-Tetramethylmethylenediamine, N, N, N ', ⁇ '-Substituted methylenediamines such as tetraethylmethylenediamine, Substituted imidazolidines such as 1,3-dibenzylimidazolidine Similar powers. Preferred are 2, 6-substituted piperidines.
- the electron donating compound (7) is particularly preferably cyclohexylmethyldimethoxysilane, cyclohexylethyldimethyloxysilane, diisopropyldimethoxysilane, tert-butylethyldimethyloxysilane, tert-butyl-1-n-propyldimethoxysilane, phenyltrimethoxysilane, diphenyldimethoxysilane.
- the polymerization catalyst used in the present invention is obtained by contacting the solid catalyst component (ii) and the organic aluminum compound (/?), And if necessary, an electron donating compound.
- Contact means catalyst components (ii) and (/?) (If necessary (7)), and any means can be used as long as the catalyst force is formed and diluted with a solvent in advance.
- a method of mixing and contacting each of them without dilution or a method of separately supplying them to the polymerization tank and bringing them into contact in the polymerization tank can be adopted.
- nitrogen it forces?
- Each catalyst component may be supplied by contacting any two components in advance.
- copolymerization of ethylene and ⁇ -olefin in the presence of the above-mentioned catalyst to produce an ethylene / monoolefin copolymer (hereinafter, this polymerization may also be referred to).
- the pre-polymerization described below may be performed before Yes.
- the prepolymerization is usually carried out by supplying a small amount of polyolefin in the presence of a solid catalyst component (") and an organoaluminum compound (/?), And is preferably carried out in a slurry state.
- a solid catalyst component e.g., a nickel-silicon, a nickel-silicon, a nickel-silicon, a nickel-silicon, a nickel-silicon, a nickel, nickel, nickel, nickel, nickel, nickel, nickel, nickel, nickel, nickel, nickel, nickel, nickel, nickel, nickel, and zinc silicates, and zinc silicates, and zinc silicates, and zinc silicates, and zinc silicates, and zinc silicates, zinc silicates, zinc silicates, zinc silicate, zinc-d silicate, boronitride, boronitride, boronitride, boronitride, boronitride, boronitride, magnesium-d magnesium, magnesium magnesium magnesium magnesium magnesium magnesium magnesium magnesium magnesium magnesium
- the amount of the organoaluminum compound used in the prepolymerization can be selected in a wide range such as usually 0.5 to 700 mol per 1 mol of titanium atom in the solid catalyst component, preferably 0.8 to 500 mol. Yes, particularly preferably 1 to 200 mol o
- the amount of prepolymerized olefin is usually from 0.01 to 1000 g, preferably from 0.05 to 500 g, particularly preferably from 0.1 to 200 g, per 1 g of the solid catalyst component. .
- the slurry concentration at the time of prepolymerization is preferably 1 to 500 g—solid catalyst component / L monosolvent, particularly preferably 3 to 300 g—solid catalyst component L monosolvent.
- the prepolymerization temperature is preferably from 20 to 10 Ot :, and particularly preferably from 0 to 80.
- the partial pressure of Orefin in the gas phase portion in the prepolymerization is preferably 1 k P a ⁇ 2MP a, particularly preferably 10 k P a ⁇ l MP a force? Prepolymerization This does not apply to olefins that are liquid at the pressure and temperature.
- the prepolymerization time is not particularly limited, but is usually 2 minutes to 15 hours.
- the solid catalyst component ( ⁇ ), the organoaluminum compound (/?), And the olefin were supplied by contacting the solid catalyst component ( ⁇ ) with the organoaluminum compound (/?).
- a method for supplying post-olefin, and an organoaluminum compound (/?) Is supplied after contacting the solid catalyst component ( ⁇ ) with olefin. Any method may be used.
- a method for supplying the olefin any one of a method of sequentially supplying olefins while maintaining a predetermined pressure in the polymerization tank, or a method of supplying all the predetermined amount of olefins first is used. Also good.
- a chain transfer agent such as hydrogen is added to adjust the molecular weight, but the ethylene .alpha. -old olefin copolymer in the present invention has little chain transfer agent such as hydrogen, or It can be produced by polymerization under nonexistent conditions.
- the partial pressure of hydrogen relative to the sum of the partial pressures of hydrogen, ethylene, and monoolefin in the gas phase part of the slurry upper surface in the slurry polymerization and in the gas phase part in the gas phase polymerization. Is usually at most 0.1, preferably at most 0.05, particularly preferably at most 0.02.
- the electron donating compound (y) When prepolymerizing the solid catalyst component ( ⁇ ) with a small amount of polyolefin in the presence of the organoaluminum compound (), the electron donating compound (y) may be present together if necessary.
- the electron donating compound used is a part or all of the electron donating compound (y).
- the amount used is usually from 0.01 to 400 mol, preferably from 0.02 to 200 mol, particularly preferably, based on 1 mol of titanium atom contained in the solid catalyst component ( ⁇ ). 0.03 to 100 mol, and usually 0.003 to 5 mol, preferably 0.05 to 3 mol, particularly preferably 0.01 to mol, relative to the organoaluminum compound (). 2 moles.
- the method for supplying the electron donating compound (a) during the preliminary polymerization is not particularly limited, and it may be supplied separately from the organoaluminum compound (/?) Or may be supplied in contact with the organic aluminum compound (/?).
- the olefin used in the prepolymerization may be the same or different from the olefin used in the main polymerization. 0 After the prepolymerization as described above, or the prepolymerization In the presence of a polymerization catalyst comprising the above-mentioned solid catalyst component (ii) and an organoaluminum compound (/?), One or more selected from ethylene and monoolefin having 4 to 10 carbon atoms. A monomer can be copolymerized (main polymerization).
- the amount of the organoaluminum compound used in the main polymerization can usually be selected in a wide range such as 1 to 100 moles per mole of titanium atoms in the solid catalyst component ( ⁇ ). Power?, Particularly preferably in the range of 5 to 600 mol.
- the amount is usually 0.1 to 2000 mol, preferably 0.3 to 1 mol per 1 mol of titanium atom contained in the solid catalyst component). 1 000 mol, particularly preferably 0.5 to 800 mol, and usually 0.001 to 5 mol, preferably 0.005 to 3 mol, particularly preferably relative to the organoaluminum compound. 0.0 1 to 1 mole.
- the polymerization can be carried out usually at a temperature of from 30 to 300 ° C., preferably from 20 to 1980, more preferably from 40 to 10 Ot :, still more preferably from 50 to 80 ° C. Further, the resulting ethylene-alpha -.
- a porous film formed from polyolefin-based resin containing a Orefin copolymer means that less heat-resistant resin layer forces the shirt down temperature of the laminated porous film is laminated comprising at 1 20? In this case, it is necessary to carry out the main polymerization at 65 ° (: to 75 °, and in this way, the amount of cold xylene soluble part (CXS) contained in the ethylene copolymer is 1.2 or more. 6.
- Ethylene of not more than 0. ⁇ — Olefin copolymer can be obtained Although the polymerization pressure is not particularly limited, it is generally from normal pressure to 10 MPa from the viewpoint of industrial and economical. Yes, preferably a pressure force of about 200 k Pa to 5 MPa is adopted
- the polymerization can be either batch type or continuous type Multiple polymerization stages or reactors with different polymerization conditions are continuously used. Nikkei It is also possible to give various distributions (molecular weight distribution, comonomer composition distribution, etc.) Inactive hydrocarbons such as propane, butane, isobutane, pentane, hexane, heptane, octane, etc. Slurry polymerization or solution polymerization with a solvent, bulk polymerization or vapor phase polymerization using liquid olefin as a medium at the polymerization temperature o
- the main polymerization it is preferable not to add a chain transfer agent such as hydrogen in order to increase the molecular weight (intrinsic viscosity) of the polymer . It is preferable to adjust the temperature and time of the main polymerization to obtain the ethylene ⁇ ⁇ -age refine. Adjust the intrinsic viscosity of the copolymer.
- the ethylene / ⁇ -olefin copolymer in the present invention is used as the solid catalyst described above.
- a polymerization catalyst comprising the component ( ⁇ ) and the organoaluminum compound ()
- slurry polymerization is performed using butane or hexane as an inert hydrocarbon solvent. Power is preferable.
- hexane is used as an inert hydrocarbon solvent.
- the film thickness of the porous film is 10 m to 30 m, preferably 15 m to 2 ⁇ m, and the film thickness of the laminated porous film is 11 mm to 40 mm. Although it is preferably as thin as 16 to 30 m, it is possible to obtain a laminated porous film having a shutdown temperature of 1 20 or less.
- a 1-butene copolymer or an ethylene ′ 1-hexene copolymer the above can be preferably applied.
- the polyolefin-based resin forming the porous film in the present invention comprises 100 parts by weight of the ethylene / ⁇ -olefin copolymer and 100 parts by weight with respect to 100 parts by weight of the ethylene / one-year-old refin copolymer. It is preferable to contain 5 to 200 parts by weight of low molecular weight polyolefin having an average molecular weight of 10,000 or less, more preferably 10 to 100 parts by weight, and even more preferably 20 to 60 parts by weight. .
- Polyolefin resin containing ethylene ⁇ -olefin copolymer and low molecular weight polyolefin having a weight average molecular weight of 10,000 or less has good stretchability, and a porous film is produced by the production method of the present invention described later. It is suitable when doing.
- the weight average molecular weight of low molecular weight polyolefin is measured by GPC (gel permeation chromatography).
- the content (% by weight) of each component can be obtained by integrating the molecular weight distribution curve obtained by GPC measurement.
- the solvent used in the GPC measurement is 0-dichlorobenzene, and the measurement temperature is 140.
- the low molecular weight polyolefin having a weight average molecular weight of 10,000 or less used in the present invention include polyethylene resins such as low density polyethylene, linear polyethylene (ethylene olefin copolymer), high density polyethylene, polypropylene, ethylene one propylene copolymer, polypropylene resin, polymethyl one 4-methyl pentene one 1, poly (butene-one 1) and ethylene monoacetate vinyl copolymer such force? be mentioned up.
- the laminated porous film of the present invention it is preferable that the low molecular weight polyolefin having a weight average molecular weight of 10,000 or less is 25 and is a solid wax. Such low molecular weight polyolefins are unlikely to adversely affect battery characteristics even if they remain in the porous film.
- the laminated porous film of the present invention has an air permeability of 50 to 100 seconds from 100 cc from the viewpoint of being able to cut off current quickly at low temperature and ion permeability.
- Kotka? preferably, 5 0-2 0 0 seconds / 1 0 0 more preferable arbitrary it is cc.
- the method for producing the porous film in the present invention is not particularly limited.
- a film is formed by adding a plasticizer to a polyolefin resin. Thereafter, a method of removing the plasticizer with an appropriate solvent, or a film made of a polyolefin-based resin produced by a known method as described in JP-A-7-304011, And a method of forming fine pores by selectively stretching amorphous parts of the film that are weak in structure.
- Ethylene «_ olefin copolymer 100 parts by weight and weight average molecular weight 10,000
- a method comprising a step of stretching the sheet obtained in step (3) to form a porous film, or
- Ethylene 100% by weight of a 1-year-old refin copolymer, 5 to 200 parts by weight of a low molecular weight polyolefin having a weight average molecular weight of 10,000 or less, and 100 to 400 parts by weight of an inorganic filler are kneaded with polyolefin. Step of obtaining a resin composition
- the shutdown temperature of the laminated porous film obtained by laminating the heat-resistant resin layer on the obtained porous film can be 120 ° C or lower
- the former method that is, the inorganic filler in the sheet is removed and then stretched.
- the porous film obtained by removing the inorganic filler, it forces the inorganic filler is remained about 100-2 0000 ppm? Preferred.
- the porous film in which a small amount of the inorganic filler remains is used as a battery separator, an effect of preventing a short circuit between the electrodes is expected even if the polyolefin resin constituting the porous sheet is melted.
- a porous film in which a small amount of the inorganic filler remains is more permeable than when the inorganic filler is completely removed. The reason for this is not clear force?, Fillers trace is considered that it is the order to have hardly crushed in the film force thickness direction by remaining in Fi Lum.
- the inorganic filler used preferably has an average particle diameter (diameter) of 0.5 / m or less, preferably 0.2 / m or less. More preferably it is.
- the average particle size of the inorganic filler in the present invention is a value determined from an SEM photograph of the inorganic filler. Specifically, it is observed with a scanning electron microscope SEM at a magnification of 300,000, the diameter of 100 particles is measured, and the average is taken as the average particle diameter (m).
- Inorganic fillers include calcium carbonate, magnesium carbonate, barium carbonate, zinc oxide, calcium oxide, aluminum hydroxide, magnesium hydroxide, hydroxylation capacity, calcium sulfate, oxalic acid, zinc oxide, calcium chloride, sodium chloride, such as magnesium sulfate force? and the like. These inorganic fillers can be removed from the sheet or film by acid or alkali solution. In the present invention, it is preferable to use calcium carbonate because it is easy to obtain one having a fine particle size.
- the method for producing the polyolefin resin composition is not particularly limited, but a material that constitutes the polyolefin resin composition such as a polyolefin resin or an inorganic filler is mixed, such as a roll, a Banbury mixer, a single screw extruder, two Mix using a screw extruder to obtain a polyolefin resin composition.
- a material that constitutes the polyolefin resin composition such as a polyolefin resin or an inorganic filler is mixed, such as a roll, a Banbury mixer, a single screw extruder, two Mix using a screw extruder to obtain a polyolefin resin composition.
- additives such as fatty acid esters, stabilizers, antioxidants, UV absorbers, and flame retardants may be added as necessary.
- the method for producing a sheet comprising the polyolefin resin composition used in the present invention is not particularly limited, and the sheet is produced by a sheet molding method such as inflation processing, calendering processing, ⁇ ⁇ ⁇ die extrusion processing, or Skyf method. Can do. Since being more MakuAtsusei high degree of Shitoka? Obtained, o is preferably produced by the following method
- a preferred method for producing a sheet comprising a polyolefin resin composition is a polyolefin-based resin using a pair of rotational molding tools adjusted to a surface temperature higher than the melting point of the polyolefin resin contained in the polyolefin resin composition.
- a resin composition is formed by rolling.
- the surface temperature of the rotational molding tools Kotka? Preferably (melting point + 5) ° C or higher.
- the upper limit of the surface temperature is (melting point + 30) and should be More preferably, (melting point + 20) and the following is more preferable.
- Examples of a pair of rotational molding tools include rolls and belt forces.
- peripheral speeds of both rotary forming tools do not necessarily have to be exactly the same, and the difference between them should be within 5% of the soil.
- the polyolefin resin composition discharged in a strand form from an extruder may be directly introduced between the pair of rotary molding tools.
- a modified polyolefin resin composition may be used.
- the draw ratio is preferably 2 to 12 times, more preferably 4 to 10 times.
- the stretching temperature is usually carried out at a temperature not lower than the softening point and not higher than the melting point of the polyolefin resin, and is preferably performed at 80 to 1 15 C. If the stretching temperature is too low, film breakage tends to occur during stretching, and if it is too high, the air permeability and ion permeability of the resulting film may be lowered. It is preferable to heat set after stretching. The heat set temperature should be less than the melting point of the polyolefin resin.
- a porous heat-resistant resin layer is laminated on at least one surface of a porous film formed from a polyolefin resin obtained by the method as described above to obtain a laminated porous film.
- the heat resistant resin layer may be provided on one side of the porous film, or may be provided on both sides.
- the laminated porous film of the present invention has a thermal membrane breaking temperature of 15 5 or more.
- the laminated porous film of the present invention which is laminated with a heat resistant resin layer on a porous film, has excellent film thickness uniformity, heat resistance, strength, and air permeability (ion permeability). It can be suitably used as a separator for an electrolyte secondary battery, particularly as a separator for a lithium secondary battery.
- the thermal membrane breaking temperature of the laminated porous film of the present invention is 1 55 or more
- the upper limit thereof that is, the highest temperature at which the shut-down state can be maintained depends on the type of resin constituting the heat-resistant resin layer.
- the heat-resistant resin constituting the heat-resistant resin layer is preferably a resin selected from the group consisting of polypropylene, poly-4-methylpentene-1, a polymer containing a nitrogen atom, and a ring-type olefin-based polymer.
- the upper limit of the thermal breakage temperature of the laminated porous film is about 180, and when poly-4-methylpentene is used, the upper limit is 25.
- the upper limit is approximately 400 G.
- the upper limit is approximately 300 ° C. It is.
- a polymer containing a nitrogen atom or a cyclic olefin-based polymer molecule, or a polymer containing a nitrogen atom is more preferable.
- the polymer containing a nitrogen atom is preferably a nitrogen-containing aromatic polymer.
- the nitrogen-containing aromatic polymer include an aromatic polyamide (hereinafter sometimes referred to as “alamide”), an aromatic polyimide, and an aromatic polyamide.
- the polyamide include meta-oriented aromatic polyamide and para-oriented aromatic polyamide (hereinafter sometimes referred to as “paraamide”), and is a porous heat-resistant resin having a uniform film thickness and excellent air permeability. Paradamide is preferred because it is easy to form a layer.
- a paraamide is obtained by condensation polymerization of a para-oriented aromatic diamine and a para-oriented aromatic dicarboxylic acid halide, and the amide bond is in the para-position of the aromatic ring or an oriented position corresponding thereto (for example, , 4, 4, 1 biphenylene, 1, 5-naphthalene, 2, 6-naphthalene, etc., which are substantially composed of repeating units bonded in the opposite direction. is there.
- cyclic Orefin polymer examples include cyclic O Les a fin monomer derived polymer structural units comprising 30 mole 0/0 or more, specifically, ethylene, Orefin of propylene Ren and carbon number 4 to 12
- the cyclic olefin monomer is a compound represented by the following formula [II].
- R 7 to R 18 are each independently a hydrogen atom, a hydroxyl group, an amino group, a phosphino group, or an organic group having 1 to 20 carbon atoms, and R 16 and R 17 may form a ring. by Les 0 m represents an integer of 0 or more.
- organic group having 1 to 20 carbon atoms include alkyl groups such as methyl group, ethyl group, propyl group, butyl group, hexyl group, octyl group, and dodecyl group; phenyl group, tolyl group, naphthyl group, etc.
- An alkoxycarbonyl group such as an aryl group, an arylcarbonyl group or an alkyloxycarbonyl group; an acyloxy group such as an acetyloxy group; an alkoxysulfonyl group such as a methoxysulfonyl group or an ethoxysulfonyl group; an aryloxysulfonyl group Or a aralkyloxysulfonyl group; a substituted silyl group such as a trimethylsilyl group; a dialkylamino group such as a dimethylamino group or a jetylamino group; a carb
- Examples thereof include a group whose part is substituted with a hydroxyl group, an amino group, an acyl group, a carboxyl group, an alkoxy group, an alkoxycarbonyl group, an acyloxy group, a substituted silyl group, an alkylamino group or a cyano group.
- R 7 to R 18 are preferably each independently a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, An acyl group having 1 to 20 carbon atoms, an alkoxycarbonyl group having 2 to 20 carbon atoms, an acyloxy group having 1 to 20 carbon atoms, or a 2-substituted silyl group having 1 to 20 carbon atoms.
- . m is an integer greater than or equal to 0, preferably an integer in the range of 0 ⁇ m ⁇ 3.
- Preferred examples of the cyclic olefin monomer represented by the general formula [II] include norbornene, 5-methylnorbornene, 5-ethylnorbornene, 5-butylnorbornene, 5-phenylnorbornene, and 5-benzylnorbornene.
- Tetracyclododecene tricyclodecene, tricycloundecene, pentacyclopentene decene, pentacyclohexadecene, 8-methyltetracyclododecene, 8-ethyltetracyclododecene, 5-acetylnorbornene, 5-acetyloxynobornene , 5-Methoxycarbonylnorbornene, 5-Ethoxycarbonylnorbornene, 5_Methyl-1-5-Methoxycarbonylnorbornene, 5-Cyanolbornene, 8-Methoxycarbonyltetracyclododecene, 8_Methyl-1-8-tetracyclo Dodecene, It is possible to enumerate a preliminary 8-Xia Roh tetracyclododecene.
- the polymer [A] includes at least one monomer selected from the group consisting of ethylene, propylene, and ⁇ -olefin having 4 to 12 carbon atoms, and at least one cyclic olefin monomer represented by the formula [II].
- a monoolefin having 4 to 12 carbon atoms 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1_nonene, 1-decene Etc.
- one or more monomers selected from the group consisting of ethylene, propylene, and ⁇ -year-old olefins having 4 to 12 carbon atoms are ethylene, propylene, or 1-butene. Power? And changing the ratio of one or more monomers selected from the group consisting of ethylene, propylene and “one-olefin having 4 to 12 carbon atoms” to one or more cyclic olefin monomers represented by the formula [II] Thus, the thermal membrane breaking temperature of the laminated porous film of the present invention can be controlled.
- the polymer [ ⁇ ] is a polymer obtained by ring-opening polymerization of one or more cyclic polyolefin monomers represented by the formula [I I].
- the polymer [C] is a polymer obtained by hydrogenating the polymer [ ⁇ ].
- the cyclic olefin-based polymer used in the present invention can be polymerized by a known method.
- the polymer [ ⁇ ] is produced by a homogeneous catalyst comprising a vanadium compound and an organoaluminum compound part as disclosed in, for example, Japanese Patent No. 2693596.
- the polymer [ ⁇ ] is a combination of a tungsten compound as disclosed in, for example, Japanese Patent No. 2940014 and a compound such as a group IA, IIA, or IIB in the Deming Periodic Table having the element-carbon bond. It can be produced using a metathesis polymerization catalyst.
- the polymer “C” is usually obtained by reacting the polymer [B] with hydrogen gas at a reaction temperature of 20 to 150 ° C. under 3 to 150 atm.
- the cyclic olefin-based polymer having an unsaturated bond is easily deteriorated during film formation, and the resulting film has a foreign substance force . Therefore, in the present invention, the polymer [A] or the polymer [C] is used. It is awesome to use.
- the heat-resistant resin When laminating a heat-resistant resin layer, it is usually necessary to dissolve the heat-resistant resin in a solvent Use.
- the heat-resistant resin is paraamide, a polar amide solvent or a polar urea solvent can be used as the solvent.
- a polar amide solvent or a polar urea solvent can be used as the solvent.
- N, N-dimethylformamide, N, N-dimethylacetate can be used.
- the intrinsic viscosity 1. 0 d lZg ⁇ 2. 8d l, / it mosquito?
- resistant heat resin g more intrinsic viscosity 1. 7d lZg ⁇ 2. 5 d 1 / g is preferred. If the intrinsic viscosity is less than 1.0 dlZg, the strength of the formed heat-resistant resin layer may be insufficient. If the intrinsic viscosity exceeds 2.8 dlZg, it may be difficult to obtain a stable heat-resistant resin-containing coating solution.
- the intrinsic viscosity here is a value measured by dissolving a heat-resistant resin once precipitated and making it into a heat-resistant resin sulfuric acid solution, and is a so-called molecular weight index. From the viewpoint of coating properties, it mosquito?
- heat-resistant resin concentration in the coating liquid is 0.5 to 10 wt%.
- an alkali metal or alkaline earth metal chloride during Paraarami de polymerization.
- Specific examples include, but are not limited to, the power of lithium chloride or chloride chloride.
- the amount of the chloride added to the polymerization system is preferably in the range of 0.5 to 6.0 mol per 1.0 mol of the amide group produced by the condensation polymerization, preferably in the range of 1.0 to 4.0 mol. Further preferred. If the chloride content is less than 0.5 mol, the solubility of the resulting paraamide may be insufficient.
- the amount of chloride dissolved in the solvent will be substantially exceeded, which is not preferable. There is. Generally, if the alkali metal or alkaline earth metal chloride is less than 2% by weight, the solubility of the paraamide may be insufficient, and if it exceeds 10% by weight, the alkali metal or alkaline earth metal chloride may be insufficient. It may not dissolve in polar organic solvents such as physical polar amide solvents or polar urea solvents.
- the aromatic polyimide is preferably a wholly aromatic polyimide produced by condensation polymerization of an aromatic dianhydride and a diamine.
- the dianhydride include Lomelic acid dianhydride, 3, 3,, 4, 4, monodiphenylsulfone tetracarboxylic dianhydride, 3, 3, 4, 4, monobenzophenone tetracarboxylic dianhydride, 2 2'-bis (3,4-dicarboxyphenyl) hexafluoropropane, 3, 3, 4, 4, 1-biphenyltetracarboxylic dianhydride.
- the diamine examples include oxydianiline, parafene dilendiamine, benzophenone diamine, 3, 3, monomethylene dianiline, 3, 3, monodiaminobenzophenone, 3, 3, diaminodiphenylsulfone. , 1, 5, one naphthalene Njiamin and the like force s, the present invention is not limited thereto.
- it can be suitably used as a polyimide soluble in a solvent.
- examples of such a polyimide include a polycondensation product of 3, 3, 4, 4, 4, 1 diphenylsulfonetetrahydrorubonic acid dianhydride and an aromatic diamine.
- the polar organic solvent for dissolving the polyimide in addition to those exemplified as the solvent for dissolving the polyamide, dimethyl sulfoxide, cresol, and 0_chlorophenol can be suitably used.
- the heat-resistant resin layer preferably further contains an organic powder and Z or inorganic powder.
- the porosity of the resulting heat-resistant resin layer can be controlled by changing the amount of organic powder and Z or inorganic powder added.
- the organic powder and / or inorganic powder preferably has an average primary particle diameter of 1.0 m or less. From the viewpoint of operability, it is preferable that the distance is 0.0 1 m or more.
- the addition amount of the organic powder and / or inorganic powder is preferably 20% by weight or more and 95% by weight or less with respect to the total weight of the heat resistant resin layer from the viewpoint of maintaining the strength characteristics of the laminated porous film. More preferably, it is 30 to 91% by weight.
- Examples of the shape of the organic powder and / or inorganic powder include a ball of 4 balls, a rod, and the like; It is preferable to be a dog.
- Examples of the above organic powder include styrene, vinyl ketone, alitrononitrile, methyl methacrylate, ethyl methacrylate, glycidyl methacrylate, Single or two or more types of copolymers such as risidyl acrylate, methyl acrylate, polytetrafluoroethylene, tetrafluoroethylene-1, hexafluoropropylene copolymer, tetrafluoride, ethylene-ethylene copolymer Fluorine resins such as polyvinylidene fluoride; melamine resin; urea resin; polyolefins; powders made of organic substances such as polymethacrylate.
- the organic powder may be used alone or in combination of two or more. Among these organic powders, polytetrafluoroethylene is preferable from the viewpoint of chemical stability.
- the inorganic powder examples include powders made of inorganic materials such as metal oxides, metal nitrides, metal carbides, metal hydroxides, carbonates, sulfates, and specific examples include alumina, silica, and the like. And powders composed of titanium dioxide, calcium carbonate or the like.
- the inorganic powder may be used alone or in combination of two or more. Among these inorganic powders, alumina power is preferable from the viewpoint of chemical stability.
- the average? L diameter measured by the mercury intrusion method of the heat-resistant resin layer is 3 m or less, more preferably 1 m or less.
- the porosity of the heat resistant resin layer is preferably 30 to 80% by volume, more preferably 40 to 70% by volume.
- the thickness of the heat resistant resin layer is preferably 1 to 15 m, more preferably 1 to 10 m. When the thickness is less than lm, the effect on heat resistance may be insufficient. When the thickness exceeds 15 / m, a laminated porous film having a heat-resistant resin layer is used as a separator for a nonaqueous electrolyte secondary battery. In such a case, the thickness may be too thick and it may be difficult to achieve a high electrical capacity.
- Laminated heat-resistant resin layer on porous film made of polyolefin resin As a method for this, a method for separately producing a heat-resistant resin layer and then laminating it with a porous film, a coating containing the above organic powder and / or inorganic powder and a heat-resistant resin on at least one surface of the porous film
- the latter method is preferable from the viewpoint of productivity and productivity including a method of forming a heat-resistant resin layer by applying a liquid.
- a method for forming a heat resistant resin layer by applying a coating liquid containing organic powder and Z or inorganic powder and a heat resistant resin on at least one surface of the porous film a method including the following steps specifically: Is mentioned.
- the heat-resistant resin is deposited from the coating film by means of humidification, solvent removal, or immersion in a solvent that does not dissolve the heat-resistant resin, and then dried as necessary.
- the coating solution is applied continuously by the coating apparatus described in JP-A No. 2 00 1- 3 1 600 0 6 and the method described in JP-A No. 2 0 1-2 3 60 2. It is preferable to work.
- the laminated porous film of the present invention is used as a battery separator and can be shut down at a low temperature when the normal operating temperature is exceeded, and also has excellent thermal film breaking characteristics even after shutdown. It is suitable as a separator for a water electrolyte secondary battery.
- non-aqueous electrolyte secondary battery having a separator according to the present invention will be described using a lithium secondary battery as an example of the battery.
- a known technique disclosed in Japanese Patent Application Laid-Open No. 20 0202 — 0 5 4 3 94 can be used. That is, a positive electrode sheet obtained by applying a positive electrode electrode mixture to a positive electrode current collector, a negative electrode sheet obtained by applying a negative electrode electrode mixture to a negative electrode current collector, and the separator according to the present invention are laminated and wound. After the electrode group obtained in this way is stored in the battery can, the nonaqueous organic solvent containing the electrolyte It can be manufactured by impregnating an electrolyte solution.
- Examples of the shape of the electrode group include a shape in which a cross section when the electrode group is cut in a direction perpendicular to the winding axis is a circle, an ellipse, a rectangle, a rectangle with a rounded corner, or the like. Can be mentioned.
- shape of the battery for example, paper type, coin type, cylindrical type, square type, etc .; You can raise a dog.
- the positive electrode sheet a material obtained by applying a positive electrode mixture containing a positive electrode active material, a conductive material and a binder to a positive electrode current collector is usually used.
- the electrode mixture for positive electrode preferably includes a material capable of doping and dedoping lithium ions as the positive electrode active material, a carbonaceous material as the conductive material, and a thermoplastic resin as the binder.
- the positive electrode active material includes at least one transition metal element selected from V, Mn, Fe, Co, Ni, Cr and Ti, Li, Na, etc.
- metal composite oxides force containing and Al force Li metal element 'like, preferably "_ N a F e 0 2 type structure mentioned ⁇ composite oxide force as a matrix, in that the average discharge potential is high
- More preferable examples include composite oxides in which a part of nickel in lithium conoleate, lithium nickelate, or lithium nickelate is replaced with other elements such as Mn and C0.
- composite oxides based on a spinel structure such as lithium manganese spinel can also be mentioned.
- binder examples include thermoplastic resins. Specifically, polyvinylidene fluoride, vinylidene fluoride copolymer, polytetrafluoroethylene, tetrafluoroethylene monohexahexan. Fluoropropylene copolymer, Tetrafluoroethylene monoperfluoroalkyl vinyl ether copolymer, Ethylene
- Examples of the conductive agent include carbonaceous materials, and specific examples include natural graphite, artificial graphite, coke, carbon black, and the like. You may mix and use a seed
- Examples of the positive electrode current collector include Al and stainless steel, and A 1 force is preferable from the viewpoint of light weight, low cost, and ease of processing.
- a method for applying the positive electrode mixture to the positive electrode current collector a method by pressure molding, pasting the positive electrode mixture using a solvent, etc., applying the mixture onto the positive electrode collector, and drying Examples of the method include pressing and pressure bonding.
- a negative electrode mixture containing a material capable of doping and dedoping lithium ions is applied to a current collector, or lithium metal, lithium alloy, or the like can be used.
- materials that can be doped and removed include natural graphite, artificial graphite, coke, carbon black, thermally decomposed carbons, carbon fibers, and burned organic polymer compounds. It is also possible to use chalcogen compounds such as oxides and sulfides that can be doped / undoped with lithium ions at a potential lower than the positive electrode.
- the carbonaceous material a carbonaceous material family mainly composed of graphite such as natural graphite or artificial graphite is preferable because of high potential flatness and low average discharge potential.
- the shape of the carbonaceous material may be, for example, a flake shape such as natural graphite, a spherical shape such as mesocarbon microbeads, a fibrous shape such as graphitized carbon fiber, or an aggregate of fine powder. .
- the electrolyte solution does not contain ethylene carbonate, which will be described later, it is preferable to use a negative electrode mixture containing polyethylene carbonate because the cycle characteristics and large current discharge characteristics of the resulting battery may be improved.
- the negative electrode mixture may contain a binder as necessary.
- the binder include thermoplastic resins. Specifically, polyvinylidene fluoride, a copolymer of polyvinylidene fluoride, vinylidene fluoride-hexafluoropropylene, and terafluoroloro Mention may be made of ethylene copolymers, thermoplastic polyimides, carboxymethylcellulose, polyethylene, polypropylene and the like.
- Lithium ions contained in the electrode mixture for the negative electrode can be doped and removed.
- chalcogen compounds such as oxides and sulfides used are crystalline or amorphous oxides mainly composed of elements of Groups 13, 14, and 15 in the periodic table, and force rucogen compounds such as sulfides. Specific examples include amorphous compounds mainly composed of tin oxide. Also in these cases, a carbonaceous material as a conductive material and a thermoplastic resin as a binder can be added as necessary.
- Examples of the negative electrode current collector used for the negative electrode sheet include Cu, Ni, and stainless steel.
- Cu power is preferable because it is difficult to form an alloy with lithium and it is easy to process into a thin film.
- the method for applying the electrode mixture for the negative electrode to the negative electrode current collector is the same as that for the positive electrode.
- the method is a method of pressure molding, pasted using a solvent, applied onto the current collector, dried and pressed. Examples of the method include pressure bonding.
- an electrolytic solution in which a lithium salt is dissolved in an organic solvent can be used.
- the lithium salt L i C 10 4, L i PF 6, L i A s F 6, L i S b F 6, LI BF 4, L i CF 3 S0 3, L i N (S0 2 CF 3) L i C (S0 2 CF 3 ) 3 , L i 2 B 1 () C 1 i.
- Lower aliphatic carboxylic acid lithium salt, Li AlC and the like, and a mixture of two or more of these may be used.
- lithium salt among these, fluorine containing Li Li PF 6 , Li As F 6 , Li S b F 6 , Li B BF Li CF 3 S 0 3 , Li N (S 0 2 CF 3 ) It is preferable to use at least one selected from the group consisting of 2 and L i C (S0 2 CF 3 ) 3 .
- the organic solvent used in the electrolytic solution include propylene carbonate, ethylene carbonate, vinylene carbonate, dimethyl carbonate, jetyl carbonate, ethyl methyl carbonate, 4-trifluoromethyl-1,3-dioxolane-1,2-one.
- Carbonates such as 1,2-di (methoxycarbonyloxy) ethane; 1,2-dimethoxetane, 1,3-dimethoxypropane, pentafluoropropyl methyl ether, 2, 2, 3, 3— Ethers such as tetrafluoropropyldifluoromethyl ether, tetrahydrofuran, 2-methyltetrahydrofuran; esters such as methyl formate, methyl acetate, 7 -butyrolacton; nitriles such as acetonitrile, butyronitrile; N, N—Jime Amides such as Tylformamide, N, N-dimethylacetamide; Carbamates such as 3_methyl-2-oxazolidone; Sulfur-containing compounds such as sulfolane, dimethylsulfoxide, 1,3-propane sultone Alternatively, a compound obtained by introducing a fluorine substituent into the above organic solvent can be given, and two or
- a mixed solvent containing carbonates is preferable, and a mixed solvent of cyclic carbonate and acyclic carbonate, or a mixed solvent of cyclic force monoborate and ethers is more preferable.
- a mixed solvent of cyclic carbonate and acyclic carbonate it has a wide operating temperature range, excellent load characteristics, and is doped with lithium ions contained in the electrode mixture for negative electrode.
- a graphite material such as graphite
- a mixed solvent containing ethylene carbonate, dimethyl carbonate and tilmethyl carbonate is preferred in that it is hardly decomposable.
- Examples of cyclic carbonates include ethylene carbonate strength, and examples of non-cyclic dog carbonates include dimethyl carbonate and ethyl methyl carbonate. '
- Titanium atom content was obtained by decomposing about 20 milligrams of solid sample with 47 mol of 0.5 mol ZL sulfuric acid and adding 3 ml of 3% by weight of 3% hydrogen peroxide solution in excess. Liquid ⁇ !
- the characteristic absorption at 4 10 nm of a dog sample was measured using a Hitachi double-beam spectrophotometer U-200 model, and obtained by a separately prepared calibration curve.
- the alkoxy group content is determined by decomposing about 2 grams of a solid sample with 100 ml of water, and then determining the amount of alcohol corresponding to the alkoxy group in the obtained liquid sample using gas chromatography one internal standard method. Converted to alkoxy group content.
- the content of phthalate ester compound was determined by dissolving approximately 30 milligrams of a solid sample in 100 ml of N, N-dimethylacetamide, and then determining the amount of phthalate ester compound in the solution using the gas chromatography internal standard method. Asked. (2) BET specific surface area
- the specific surface area of the solid catalyst component was determined by the BET method based on the nitrogen adsorption / desorption amount using a flow soap I I 2 300 manufactured by Micromeritics.
- the polymer was dissolved in a 135 ° C. tetralin solvent and measured at 135 using an Ubbelohde viscometer.
- the Gurley value (second Z100 cc) of the film was measured with a B-type densometer (manufactured by Toyo Seiki Co., Ltd.) according to JISP8117.
- the average pore diameter d ( ⁇ m) of the porous film was measured by Perm-Porometer (manufactured by PM I) by the bubble point method.
- the porous film was fixed with a 12 mm washer, and the maximum stress (g f) when the pin was pierced at 200 mm / min was defined as the piercing strength of the film.
- the shirt down temperature was measured in a shirt down measurement cell as shown in Fig. 1 (hereinafter referred to as the cell).
- the electrode (13) with the spring (12) is attached to the spring. I placed it on a separate (8) so that it would be on top.
- Another SUS plate electrode (10) is placed on the spacer (11) arranged on the electrode (10), and the separator (8) is interposed via the spring (12) and the electrode (13).
- the cells were assembled by tightening both electrodes (10) and (10) so that a surface pressure of 1 kgf Zcm 2 acts on the surface.
- Electrolyte (9) has an ethylene strength of 30 V 0 1%: dimethyl carbonate
- the terminals of the impedance analyzer (7) were connected to the electrodes (10) and (10) of the assembled cell, and the resistance value at 1 kHz was measured.
- a thermocouple (14) was installed directly under the separator so that the temperature could be measured at the same time, and the impedance and temperature were measured while the temperature was raised at the rate of the heating rate.
- the temperature when the impedance at l kH z reached 1000 ⁇ was defined as the shutdown temperature (SD temperature).
- SD temperature shutdown temperature
- the temperature was further raised, the laminated porous film strength was broken, and the temperature at which the internal resistance began to decrease was measured as the thermal film breaking temperature.
- a 200-L reactor equipped with a nitrogen-replaced stirrer and baffle plate was added to 80 hexane. 20.6 kg of traethoxysilane and 2.2 kg of tetrabutoxy titanium were added and stirred.
- a dibutyl ether solution of butyl magnesium chloride (concentration: 2.1 mol Z-litre) 50 1 was added dropwise to the stirred mixture over 4 hours while maintaining the reactor temperature at 5 ° C. After completion of the dropwise addition, the mixture was stirred at 5 for 1 hour and further at 20 ° C for 1 hour and then filtered. The obtained solid was washed with toluene 70 1 three times, and toluene 63 1 was added to make 11 a slurry. . A part of the slurry was collected, the solvent was removed, and drying was performed to obtain a solid catalyst component precursor.
- the solid catalyst component precursor contained Ti: 1.86 wt%, 0 Et (ethoxy group): 3 6. l wt%, OBu (butoxy group): 3.00 wt%.
- the solid catalyst component precursor slurry synthesized in (1) above was charged into the reactor, and tetrachlorosilane 14.4 kg, phthalate 9.5 kg of di (2-ethylhexyl) acid was added and stirred at 105 ° C for 2 hours.
- tetrachlorosilane 14.4 kg, phthalate 9.5 kg of di (2-ethylhexyl) acid was added and stirred at 105 ° C for 2 hours.
- solid-liquid separation was performed, and the obtained solid was washed with toluene 90 1 three times at 95 ° C., and then 63 1 of toluene was added.
- TiCl 4 13.0 kg was added, and the mixture was stirred at 105 for 2 hours.
- the solid catalyst component contained T i: 0.93 wt% and di (2-ethylhexyl) phthalate: 26.8 wt%.
- the specific surface area by B ET method is 8.5m 2 / g and 7 pieces.
- PTA poly (paraphenylene terephthalamide)
- TPC terephthalic acid dichloride
- the autoclave with an internal volume of 200 liters equipped with a stirrer was sufficiently dried and then vacuumed, charged with 70 L of hexane and 20 kg of 1-butene, and the temperature was raised to 70.
- ethylene was added to a partial pressure of 1.1 MPa.
- Polymerization was started by injecting triethylaluminum 3 15 mmo 1 and 1.9 g of the solid catalyst component obtained in Production Example 1 (2) with argon. Thereafter, polymerization was carried out at 70 for 2.5 hours while continuously supplying ethylene and keeping the total pressure at 1.5 MPa.
- the reaction product was brought into contact with 3 L of isobutanol, and then the ethylene '1-butene copolymer and the residual solvent were subjected to solid-liquid separation to obtain 13.2 kg of ethylene' 1-butene copolymer. .
- the bulk specific gravity of the polymer powder was 0.44 gZm 1.
- the intrinsic viscosity of the ethylene. 1-butene copolymer [] is 10.0 (d / g), 5 to 8 is 10.0 (1000 carbon atoms), and 5 is 1.43 (wt %), The melting point was 1 1 7. 8 (at).
- Low molecular weight polyethylene (B) weight average molecular weight 1000, made by Mitsui Chemicals, high wax 1 10 P) 42.8 parts by weight, average particle size 0 lm calcium carbonate (C) 100 parts by weight of the mixture mixed at a ratio of 234 parts by weight, and 100 parts by weight of the above-mentioned components (A), (B), (C), phenolic antioxidant (Ciba Specialty Chemicals) Co., Ltd .: IRG AN OX 1010) 0.3 parts by weight, Phosphorus antioxidant (Ciba Specialty-Chemicals Co., Ltd .: I RG AFO S 168) (200 tons: 3 minutes, rotation speed: 100 rpm) to obtain a polyolef
- the polyolefin resin composition was rolled using a press (2 10) to produce a 100 m sheet.
- the sheet is immersed in an acid aqueous solution (with a surfactant) to extract calcium carbonate, washed with water, dried at 40, and 5.8 under the condition of 95 using an autograph.
- the film was stretched twice to obtain a porous film (1).
- a porous film adhered to nylon cloth was sandwiched further Arami earthen felt. Place the aluminum film on top of the porous film that has adhered to the film, sandwiched between the nylon cloth and the felt made of aluminum, and put the nylon film on it.
- the nylon film and the aluminum plate were sealed with gum and a conduit for decompression was attached. The whole was dried under reduced pressure at 6 0 ° C placed in a hot oven, Arami cathodic? Obtain laminated laminated porous film (1) as a heat-resistant resin.
- Table 1 shows the physical properties (film thickness, shirt down temperature, thermal membrane breaking temperature, puncture strength) of the obtained laminated porous film (1).
- the reaction product was brought into contact with 3 L of isobutanol, and then the ethylene 1-butene copolymer and the residual solvent were subjected to solid-liquid separation to obtain 18.0 kg of ethylene, 1-butene copolymer. It was.
- the bulk specific gravity of the polymer powder was 0.44 gZml.
- the intrinsic viscosity of the ethylene 1-butene copolymer [] is 10.7 (dlZg), SCB is 6.9 (10 carbon atoms), and CXS is 2.05 ( wt%), and the melting point was 1 19.2 (V).
- the polyolefin resin composition was rolled using a press (210 ° C.) to prepare a 100 m sheet.
- the sheet is immersed in an acid aqueous solution (containing a surfactant) to extract calcium carbonate, washed with water, dried at 40, and autographed at 95 ° C.
- the film was stretched 5.8 times to obtain a porous film (2).
- a laminated porous film (2) was obtained in the same manner as in Example 1, except that the porous film (2) and the liquid P obtained in Production Example 2 were used.
- Table 1 shows the physical properties (film thickness, shutdown temperature, thermal film breaking temperature, puncture strength) of the obtained laminated porous film (2).
- Example 1 the film thickness, shirt down temperature, thermal film breaking temperature, and puncture strength of the porous film (1) used in producing the laminated porous film (1) were measured. The results are shown in Table 1.
- Example 2 the film thickness, shirt down temperature, thermal film breaking temperature, and puncture strength of the porous film (2) used in producing the laminated porous film (2) were measured. The results are shown in Table 1. Table 1 Film properties
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- Chemical Kinetics & Catalysis (AREA)
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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Cell Separators (AREA)
- Laminated Bodies (AREA)
- Secondary Cells (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20070828885 EP2067618B1 (en) | 2006-09-26 | 2007-09-25 | Multilayer porous film and separator for nonaqueous electrolyte secondary battery |
US12/442,755 US20100015515A1 (en) | 2006-09-26 | 2007-09-25 | Laminated porous film and separator for nonaqueous electrolyte secondary battery |
CN2007800436748A CN101541534B (zh) | 2006-09-26 | 2007-09-25 | 层压多孔性膜及非水电解质二次电池用隔板 |
AT07828885T ATE540812T1 (de) | 2006-09-26 | 2007-09-25 | Mehrlagige poröse folie und separator für sekundärbatterie mit nicht wässrigem elektrolyten |
KR1020097008360A KR101384916B1 (ko) | 2006-09-26 | 2007-09-25 | 적층 다공성 필름 및 비수 전해질 2 차 전지용 세퍼레이터 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-260254 | 2006-09-26 | ||
JP2006260254A JP5034414B2 (ja) | 2006-09-26 | 2006-09-26 | 積層多孔性フィルムおよび非水電解質二次電池用セパレータ |
Publications (1)
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WO2008044513A1 true WO2008044513A1 (fr) | 2008-04-17 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/069144 WO2008044513A1 (fr) | 2006-09-26 | 2007-09-25 | Film poreux à couches multiples et séparateur pour accumulateur secondaire à électrolyte non aqueux |
Country Status (8)
Country | Link |
---|---|
US (1) | US20100015515A1 (ja) |
EP (1) | EP2067618B1 (ja) |
JP (1) | JP5034414B2 (ja) |
KR (1) | KR101384916B1 (ja) |
CN (1) | CN101541534B (ja) |
AT (1) | ATE540812T1 (ja) |
TW (1) | TW200836387A (ja) |
WO (1) | WO2008044513A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101689624A (zh) | 2007-06-19 | 2010-03-31 | 帝人株式会社 | 非水系二次电池用隔膜、其制造方法和非水系二次电池 |
JP2010056036A (ja) * | 2008-08-29 | 2010-03-11 | Teijin Ltd | 非水電解質電池セパレータ及びその製造方法並びにそれを用いた非水電解質二次電池 |
EP2443685B1 (en) | 2009-06-19 | 2014-07-16 | Toray Battery Separator Film Co., Ltd. | Microporous membranes, methods for making such membranes, and the use of such membranes as battery separator film |
US9570725B2 (en) | 2010-10-29 | 2017-02-14 | Teijin Limited | Separator for nonaqueous electrolyte battery, and non-aqueous electrolyte secondary battery |
TWI425700B (zh) * | 2010-12-22 | 2014-02-01 | Ind Tech Res Inst | 二次電池、電池隔離膜及其製造方法 |
WO2016028989A1 (en) | 2014-08-21 | 2016-02-25 | William Winchin Yen | Microporous sheet product and methods for making and using the same |
WO2016073558A1 (en) | 2014-11-05 | 2016-05-12 | William Winchin Yen | Microporous sheet product and methods for making and using the same |
US10829600B2 (en) | 2014-11-05 | 2020-11-10 | William Winchin Yen | Microporous sheet product and methods for making and using the same |
CN111433940B (zh) * | 2017-11-28 | 2023-02-03 | 东丽株式会社 | 多孔性膜、二次电池用隔膜以及二次电池 |
CN110364667B (zh) | 2018-04-11 | 2022-04-22 | 宁德新能源科技有限公司 | 多孔膜和锂离子电池 |
WO2021222716A1 (en) * | 2020-05-01 | 2021-11-04 | Celanese International Corporation | Copolymer having a reduced shutdown temperature and articles made with same |
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- 2007-09-25 US US12/442,755 patent/US20100015515A1/en not_active Abandoned
- 2007-09-25 EP EP20070828885 patent/EP2067618B1/en not_active Not-in-force
- 2007-09-25 AT AT07828885T patent/ATE540812T1/de active
- 2007-09-25 KR KR1020097008360A patent/KR101384916B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
---|---|
JP2008080536A (ja) | 2008-04-10 |
US20100015515A1 (en) | 2010-01-21 |
JP5034414B2 (ja) | 2012-09-26 |
KR20090066307A (ko) | 2009-06-23 |
EP2067618A4 (en) | 2010-04-14 |
EP2067618B1 (en) | 2012-01-11 |
CN101541534B (zh) | 2013-03-13 |
EP2067618A1 (en) | 2009-06-10 |
ATE540812T1 (de) | 2012-01-15 |
CN101541534A (zh) | 2009-09-23 |
TW200836387A (en) | 2008-09-01 |
KR101384916B1 (ko) | 2014-04-11 |
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