WO2008117876A1 - ベーマイト充填ポリプロピレン樹脂組成物およびそれからなる成形体 - Google Patents
ベーマイト充填ポリプロピレン樹脂組成物およびそれからなる成形体 Download PDFInfo
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- WO2008117876A1 WO2008117876A1 PCT/JP2008/056253 JP2008056253W WO2008117876A1 WO 2008117876 A1 WO2008117876 A1 WO 2008117876A1 JP 2008056253 W JP2008056253 W JP 2008056253W WO 2008117876 A1 WO2008117876 A1 WO 2008117876A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
Definitions
- the present invention relates to a boehmite-filled polypropylene resin composition and a molded article comprising the same. More specifically, the present invention relates to a boehmite-filled polypropylene resin composition that is useful as a material for a molded article having an excellent balance between impact resistance and rigidity.
- a polypropylene resin composition in which an inorganic filler and an elastomer are blended is known as a polypropylene resin material having an excellent balance of rigidity and impact resistance.
- Japanese Patent Application Laid-Open No. 2 00 3-2 8 6 3 7 2 a polypropylene resin composition obtained by blending aluminum hydroxide having a maximum diameter of 20 / xm or less has rigidity and surface hardness. It is described that an excellent molded body can be obtained.
- Japanese Patent Application Laid-Open No. 2 065 _ 1 2 6 2 8 7 discloses a polypropylene resin composition containing a bermite having an average major axis of 100 to 900 nm, which is excellent in surface hardness. It is described that a molded body can be obtained.
- An object of the present invention is to provide a polypropylene resin composition useful as a material for a molded article having an excellent balance between impact resistance and rigidity.
- the present invention relates to a polypropylene resin comprising a propylene homopolymer and / or a propylene / ethylene random copolymer having an ethylene content of 1.0% by weight or less (A) 50 to 75% by weight, and an elastomer (B).
- Resin (I) containing 50 to 50% by weight (However, the amount of the polypropylene resin (A) and the amount of the elastomer (B) are both (Based on the total amount of pyrene resin (A) and elastomer (B)) 50 to 99% by weight, BET specific surface area of 20 to 8 O m 2 nom, c length of 30 to It is 300 nm, and the ratio of the a-axis length to the b-axis length (a-axis length Z b-axis length) is 5 or more. (C) 1 to 50 weights.
- Figure 1 shows the a, b, and c axes of boehmite particles.
- the polypropylene resin (A) used in the present invention comprises a propylene homopolymer and / or a propylene / ethylene random copolymer having an ethylene content of 1.0% by weight or less.
- the ethylene content was determined using the IR method or NMR method described in the “New Edition Polymer Analysis Handbook” (Kinokuniya Shoten (1 9 9 5) edited by the Chemical Society of Japan, Polymer Analysis Research Council). taking measurement.
- a propylene homopolymer and / or a propylene homopolymer having an ethylene content of 0.5% by weight or less or a propylene homopolymer and an ethylene content Is preferably a mixture of a propylene monoethylene random copolymer having a content of 0.5% by weight or less, more preferably a propylene monoethylene random copolymer having a propylene homopolymer or an ethylene content of 0.3% by weight or less. Or a propylene homopolymer and ethylene content are 0.3 weight. /.
- the following is a mixture of a propylene-ethylene random copolymer, and most preferably a propylene homopolymer.
- Examples of the method for producing the polypropylene resin (A) include a solution polymerization method, a slurry polymerization method, a Balta polymerization method, and a gas phase polymerization method. Further, these polymerization methods may be used alone, or a method combining two or more polymerization methods may be used.
- As a method for producing the polypropylene resin (A) for example, "new polymer production process” (edited by Koji Saeki, Industrial Research Committee (published in 1994)), JP-A-4-3 2 3 2 07, Examples thereof include the polymerization methods described in JP-A-6 1- 2 8 7 9 1 7 and the like.
- Examples of the catalyst used for producing the polypropylene resin (A) include a multi-site catalyst and a cinder site catalyst.
- a multi-site catalyst a catalyst obtained by using a solid catalyst component containing a titanium atom, a magnesium atom and a halogen atom is preferably used, and as the single-site catalyst, a meta-catalyst is preferably used.
- a complex As the multi-site catalyst, a catalyst obtained by using a solid catalyst component containing a titanium atom, a magnesium atom and a halogen atom is preferably used, and as the single-site catalyst, a meta-catalyst is preferably used. A complex.
- Examples of the elastomer (B) used in the present invention include an olefin elastomer, a styrene elastomer, a polyester elastomer, a polyurethane elastomer, a PVC elastomer, and the like, and preferably an olefin elastomer. Or it is a styrene-type elastomer, More preferably, it is an olefin-type elastomer.
- the olefin-based elastomer is a polymer obtained by polymerizing ethylene and ⁇ -olefin having 3 to 20 carbon atoms.
- the ethylene content in the olefin-based elastomer is preferably 10 to 85% by weight.
- Examples of ⁇ -olefins having 3 to 20 carbon atoms include propylene, 1-butene, isobutene, 1-pentene, 2-methyl-1-butene, 3-methyl-1-1-butene, 1-hexene, 2— Methyl 1-pentene, 3-methyl 1-pentene, 4-methyl 1-pentene, 1-octene, 1-nonene, 1-decene, 1-undecene, 1-dodecene, etc., preferably propylene, 1-butene, 1-hexene, 1-octene.
- olefin-based elastomers examples include ethylene-propylene copolymerized elastomers, ethylene-butene-1 copolymerized elastomers, ethylene-hexene-1 copolymerized elastomers, ethylene-octene-1 copolymerized elastomers, etc. Can be mentioned.
- the olefin elastomer only one type may be used, or two or more types may be used in combination. Preferred are ethylene-butene monocopolymerization elastomer and ethylene-one otene monocopolymerization elastomer.
- the density of the olefin-based elastomer is preferably from the viewpoint of dispersibility with respect to the polypropylene resin ( ⁇ ) and the impact strength of the resulting resin composition at room temperature or low temperature. 0.85 to 0.885 g cm 3 , more preferably 0.85 to 0.88 g / cm 3 , and still more preferably 0.855 to 0.875 gZcm 3 .
- melt flow rate (MFR) of the olefin-based elastomer at 1 90 ° C is preferably 0.1 to 30 gZl 0 minutes, and more preferably 0.5 to 20 g / 10 Minutes.
- Examples of the method for producing an olefin-based elastomer include a production method by a known polymerization method using a known polymerization catalyst.
- Known polymerization catalysts include, for example, a Thiddara-Natta catalyst system comprising a vanadium compound, an organoaluminum compound and a halogenated ester compound, or at least one cyclopentadienylanion skeleton for a titanium atom, a zirconium atom or a hafnium atom.
- Examples thereof include a catalyst system in which a metallocene compound coordinated with a group having an alumoxane and a fluorine compound is combined with a fluorine compound, a so-called metallocene catalyst system.
- Applicable polymerization methods include, for example, a method of copolymerizing ethylene and ⁇ -olefin in an inert organic solvent such as a hydrocarbon compound, or a copolymerization in ethylene and ⁇ -olefin without using a solvent. The method of letting it be mentioned.
- the olefin-based elastomer may be a commercially available olefin-based elastomer.
- the trade name Dynalon manufactured by JSR Corporation
- the trade name Miralastomer the trade name Tafuma 1 (manufactured by Mitsui Chemicals)
- Product name Thermorun manufactured by JSR Corporation
- Product name SPX Mitsubishi Chemical Co., Ltd.
- Product name ⁇ WCON Choisso Co., Ltd.
- Product name MNCS Product made by Pridstone Co., Ltd.
- Product name H i Fax Product name Ad F 1 ex (Monte 1 1 made by JPO Co., Ltd.)
- trade name MiraPlain Mitsubishi Chemical MKV Co., Ltd.
- trade name Sumitomo TP E trade name Esprene EPDM
- styrene elastomer for example, a block copolymer comprising a vinyl aromatic compound polymer block and a conjugated polymer block, a block in which a double bond of a conjugated gene portion of the block copolymer is hydrogenated
- styrene elastomer for example, a block copolymer comprising a vinyl aromatic compound polymer block and a conjugated polymer block, a block in which a double bond of a conjugated gene portion of the block copolymer is hydrogenated
- it is a block polymer in which the double bond of the conjugation moiety of the block copolymer is hydrogenated by 80% or more, more preferably a block polymer in which 85% or more is hydrogenated. It is.
- the molecular weight distribution of elastomers containing vinyl aromatic compounds is the ratio (Mw / Mn) determined from the weight average molecular weight (Mw) and number average molecular weight (M n) measured by gel permeation chromatography (GPC). It is preferably 2.5 or less, more preferably 2.3 or less.
- the content of the bull aromatic compound contained in the styrene elastomer is preferably 10 to 20 weights. / 0 , more preferably 12 to 19 weight. /. It is.
- the melt flow rate of the styrenic elastomer (MFR, AST ⁇ . D 123 8, 230 ° C) is preferably 1 to 15 gZl O min, more preferably 2 to 13 g / 10 min. .
- styrene elastomers examples include styrene / ethylene / butene / styrene rubber (SEB S), styrene / ethylene / propylene / styrene rubber (SEPS), styrene / butadiene rubber (SBR), and styrene / butadiene.
- SEB S styrene rubber
- SEPS styrene / ethylene / propylene / styrene rubber
- SBR styrene / butadiene rubber
- styrene / butadiene rubber examples include block copolymers such as styrene rubber (SBS) and styrene-isoprene-styrene rubber (SIS), and block copolymers obtained by hydrogenating these rubber components.
- a rubber obtained by reacting an olefin-based copolymer rubber such as ethylene-propylene-non-conjugated gen-based rubber (EPDM) with a vinyl aromatic compound such as styrene can also be suitably used. It is also possible to use two or more types of elastomers containing a bully aromatic compound.
- EPDM ethylene-propylene-non-conjugated gen-based rubber
- Examples of the method for producing the styrene elastomer include a method of bonding a vinyl aromatic compound to an olefin copolymer rubber or a conjugated rubber.
- the styrene-based elastomer may be a commercially available styrene-based elastomer.
- Boehmite (C) has a BET specific surface area of 20 to 8 Om 2 / g and a c-axis length of 30 to 300 n. m, (a-axis length Zb-axis length) is a powder of 5 or more, represented by the chemical formula: A 1 OOH. As described in Japanese Patent Application Laid-Open No.
- the crystal structure of the base mate (A l OOH) (C) can be identified by consolidating the sample on a glass non-reflective plate, and using an X-ray diffractometer [R The measurement can be performed by measuring the diffraction pattern of the powder using “RI NT 2000” manufactured by igaku] and comparing it with J CPDS (Jo 1 nt Comte d iiiraction Standards) 21-1307.
- bemite (C) is a crystal of givesite or bayite (both are represented by the chemical formula: Al (OH) 3 or ⁇ 1 2 0 3 ⁇ 3H 2 0).
- the peak height of the main peak indicating the gibbite or bayerite structure in the powder XRD spectrum is usually the ratio to the main peak indicating the base structure. 5% or less.
- the boehmite may contain amorphous aluminum hydroxide.
- the ratio of boehmite (C) (3-axis length / 13-axis length) is 5 or more, preferably 5 to 50, from the viewpoint of mechanical strength such as the rigidity of the molded body and the moldability of the composition. More preferably, it is 5-30, and more preferably 10-30.
- the ratio of bemite (C) (& axis length / 13-axis length) means that particles of bemite (C) that do not overlap other particles in the electron microscope or optical micrograph are selected.
- the longest axis is the a-axis and the axis perpendicular to it is the b-axis
- the length in the a-axis direction is the ratio of the length in the b-axis direction.
- Figure 1 shows examples of the shape of boehmite (C) particles and the a, b, and c axes of these particles.
- the c-axis means an axis that is perpendicular to both the a and b axes. Note that the lengths of the a, b, and c axes are such that a axis length> b axis length ⁇ c axis length.
- the a-axis length and b-axis length are calculated as the number average of values measured from 10 samples randomly selected from scanning electron micrographs. Also, the b-axis length is divided into classes of appropriate size and expressed in a histogram.
- the a-axis length of the beehmite (C) of the present invention is preferably 0.3 / xm to 10 / zm.
- boehmite particles are dispersed in a solvent so that the solid content concentration is 1% or less, aggregation of particles is reduced by irradiation with stirring ultrasonic waves, etc., and the obtained dispersion is applied to a sample stage This is dried to obtain a measurement sample.
- the solvent used for dispersion may be appropriately selected from solvents such as water and alcohol in which boehmite is easily dispersed. An electron microscope image is taken using the obtained measurement sample.
- the bemite (AI OOH) particles that do not overlap with other particles are selected as appropriate, and the a-axis length, b-axis length, and c-axis length of the boehmite can be obtained by the method described above.
- BET specific surface area of the boehmite (C), from the viewpoint of mechanical strength such as rigidity of the molding is 20 ⁇ 80 m 2 Roh g, preferably. 30 to 80 m 2 / g, particularly preferably 50 to 80 m 2 / g.
- Boehmite (C) is, for example, described in JP-A-2000-239014, a method in which metal acetate is added to water together with aluminum hydroxide and hydrothermal treatment, or JP-A-2006-160541. And a method in which boehmite type aluminum hydroxide and gibbsite type aluminum hydroxide are hydrothermally treated in the presence of magnesium. Boehmite (C) can also be obtained by adjusting an aqueous solution in which metal acetate is added together with aluminum hydroxide to acidity with carboxylic acid or the like and then hydrothermally treating it. From the viewpoint of the rigidity and heat resistance of the molded article, the polypropylene resin composition of the present invention preferably contains an aromatic carboxylic acid.
- the condensed aromatic ring may contain a hetero atom.
- R—COOH A compound having a condensed aromatic ring and a carboxyl group is denoted as R—COOH.
- examples of compounds having the corresponding R—H structure are listed as indene, naphthalene, funoleolene, phenanthene, anthracene, pyrene, chrysene, naphthacene, benzofuran, isobenzofuran, benzo [b] Thiophene, indole, isoindole, benzoxazole, quinoline, isoquinoline, cinnoline, phthalazine, quinazoline, quinoxaline, dibenzofuran, carbazole, acridine, phenanthridine 1, 10-phenanthridine, phenazine, phenoxazine, thianthrene, and indolizine.
- two or more aromatic carboxylic acids may be used in combination.
- aromatic carboxylic acid examples include p-tertbutylbenzoic acid, benzoic acid, 1-naphthoic acid, 2-naphthoic acid, 4-methyl-1-naphthoic acid, 4-hydroxy1-1-naphthoic acid, 6-Hydroxy 1-naphthoic acid, naphthalic acid, 1-anthracene carboxylic acid, 2 1-anthracene carboxylic acid, 9-anthracene carboxylic acid, etc.
- benzoic acid is preferable, preferably p-tertbutyl benzoic acid, benzoic acid, 1-naphthoic acid Acid, 2-naphthoic acid, 1-anthracene carboxylic acid, 2-anthracene carboxylic acid, 9_anthracene carboxylic acid, more preferably 1-naphthoic acid, 2-naphthoic acid, 1-anthracene carboxylic acid, 2-anthracene Carboxylic acid, 9_anthracenecarboxylic acid, and more preferably 1-naphthoic acid and 2-naphthoic acid.
- the total amount of polypropylene resin (A), elastomer (B), and boehmite (c) is 100% by weight.
- the amount of the aromatic carboxylic acid is preferably 0.01 to 10 parts by weight, more preferably 0.05 to 5 parts by weight, and still more preferably 0.1 to 3 parts by weight. Part.
- the component (A) is 50 to 75% by weight, and the component (B) is 25 to 50% by weight, preferably component (A) is 50 to 73% by weight, component (B) is 27 to 50% by weight, more preferably component (A) is 50 to 70% by weight And component (B) is 30 to 50% by weight.
- the amount of the component (A) and the amount of the component (B) are based on the total amount of these components.
- the amount of the resin (I) is preferably 50 to 95% by weight, and the component (C) is 5 to 50%. More preferably, the resin (I) is 60 to 95% by weight, the component (C) is 5 to 40% by weight, and more preferably the resin (I) is 70 to 95% by weight. And component (C) is 5 to 30% by weight, more preferably resin (I) is 80 to 95% by weight, and component (C) is 5 to 20% by weight.
- the method for producing the resin composition of the present invention is not particularly limited, and examples thereof include a method in which all the components of the polypropylene resin composition of the present invention are made into a uniform mixture and then the mixture is melt-kneaded.
- examples of a method for obtaining a uniform mixture include a method of mixing with a Henschel mixer, a ribbon blender, a blender, and the like.
- examples of the melt kneading method include a melt kneading method using a Banbury mixer, a plast mill, a Brabender plastograph, a single screw or a twin screw extruder, and the like.
- Examples of the method of mixing the component (B) and the component (A) include a melt kneading method, a solution blending method, and a method of mixing in a polymerization step.
- Component (B) to be mixed in the polymerization step is referred to as component (B 1).
- Component (B) mixed by the melt-kneading method and the solution blending method is referred to as component (B2).
- Examples of the method for mixing the component (A) and the component (B) in the polymerization step include a method in which the component (A) is produced in the first step and the component (B 1) is produced in the second step.
- a known catalyst such as a cheddarer-Natta catalyst or a metalocene catalyst can be used.
- a known polymerization method such as a slurry polymerization method, a Balta polymerization method or a gas phase polymerization method can be used, and these polymerization methods may be combined for production.
- a method of mixing the component (A) and the component (B2) a method of mixing by the above-mentioned melt kneading method and a known solution blend method can be used.
- a known melt-kneading method, solution blending method, and a method of mixing in a polymerization step may be used in combination.
- examples thereof include a method in which the component (A) and the component (B 1) are mixed in the polymerization step, and then the component (B2) is further mixed by a melt kneading method.
- the component (B 1) to be mixed in the polymerization step is the same as the component (B2) to be mixed by the melt-kneading method.
- One may be sufficient.
- the polypropylene resin composition of the present invention has various additives depending on applications, such as crystal nucleating agents, antioxidants and weathering stabilizers, light stabilizers, ultraviolet absorbers, antistatic agents, lubricants, and blocking.
- Anti-fogging agents, anti-fogging agents, pigments, heat stabilizers, neutralizing agents, dispersants, plasticizers, flame retardants and other modifying additives, pigments, dyes and other colorants may be added.
- known inorganic particles such as carbon black, titanium oxide, tarc, calcium carbonate, my strength, particulate filler such as clay, short fiber filler such as wollastonite, whisker such as potassium titanate, etc. May be included as a filler.
- modifiers such as rubber and modified resins such as maleic anhydride-modified PP may be added.
- additives, fillers and modifiers may be added during the production of the polypropylene resin composition of the present invention and contained in the composition. When the molded product is produced by molding the composition It may be added.
- the polypropylene resin composition of the present invention can be formed into a molded body by molding by an appropriate method.
- the molding method include an injection molding method, an injection compression molding method, a gas assist molding method, and an extrusion molding method.
- molded product obtained from the polypropylene resin composition of the present invention include plastic parts for automobiles, exterior parts that require mechanical strength, durability, and good appearance, and heat resistance rigidity are required. Interior parts.
- -As exterior parts for example, fender, over fender, grill guard, cowl bar, wheel cap, wheel cover, side protector, side molding, side skirt, front grinole, side step, roof rail, rear boiler, Bumpers, tenor legs, sun / reflex deflectors, nore frames / res, door mirror stains, door mirror covers, rear quarter panels, side covers, cowl top garnishes, front grills, etc.
- the one bracket, sun visor arm, accelerator pedal, shift lever bracket, vinegar The tearing lock bracket, key cylinder, door handle, door handle force ur, interior mirror bracket, air conditioner switch, etc. can be used.
- the evaluation sample was molded under the following conditions.
- the Nippon Steel Works molding machine J 28 SC was used for injection molding of the sample for evaluation.
- compositions of the samples used in the examples and comparative examples are shown in Table 14.
- the solid content is collected by filtration, washed with water until the electrical conductivity of the filtrate is 100 ⁇ SZ cm or less, and then pure water is added to obtain a solid content concentration of 5 mass. / 0 slurry, remove coarse particles with a SUS sieve with an opening of 45 xm, spray dry with a spray dryer (manufactured by Nippoku Japan Co., Ltd., mobile minor type) at an outlet temperature of 120 ° C.
- the powder (C-1) was obtained by crushing with a speed mill ["P-14" manufactured by Fritsch Co., Ltd.]. This powder was confirmed to be boehmite (AI OOH) from the powder XRD pattern.
- the bemite (C-1) has a BET specific surface area of 66m 2 Zg, a-axis length of 252 O nm, b-axis length of 102 nm, c-axis length of 102 nm, and ratio of a-axis length to b-axis length ( a-axis length b-axis length) was 25.
- the BET specific surface area was determined by the nitrogen adsorption method.
- the a-axis length, b-axis length, and c-axis length were calculated as average values of values measured from 10 samples randomly selected from scanning electron micrographs.
- the ratio of the a-axis length to the b-axis length is calculated as the number average of the values obtained by dividing the a-axis length by the b-axis length for each of the 10 samples described above. did.
- a slurry is prepared by mixing 100 parts by mass of gibbsite type aluminum hydroxide having a specific surface area of 251 ⁇ / with a center particle size of 0.5 / zm, 218 parts by mass of magnesium acetate tetrahydrate and 2100 parts by mass of pure water. Obtained.
- Boehmite type prepared by hydrolysis of aluminum alkoxide A slurry in which aluminum hydroxide [BET specific surface area 307 2 8 ] is dispersed in 0.1 N nitric acid water [nitric acid concentration 0.1 mol ZL] [solid content concentration 10%. / 0 ] When 50 parts by mass were added to the slurry obtained above, the hydrogen ion concentration was pH 7.0.
- the temperature was raised from room temperature [20 ° C] to 200 ° C at a rate of 100 ° C for 1 hour in an autoclave, and the temperature was maintained for 4 hours to conduct a hydrothermal reaction.
- the solid content is collected by filtration operation, washed with water until the electric conductivity of the filtrate becomes 100 ⁇ SZ cm or less, and then pure water is added to form a slurry with a solid content concentration of 5 mass%.
- Coarse particles are removed with a 45 / zm SUS sieve and spray dried at a outlet temperature of 120 ° C with a spray dryer (manufactured by Futatsu Japan Co., Ltd., mobile minor type).
- the powder (C-2) was obtained by crushing with ⁇ -14 ”].
- Boehmite (C- 2) has a BET specific surface area of 126m 2 Zg, a-axis length of 103 nm, b-axis length of 7 nm, c-axis length of 7 nm, ratio of a-axis length to b-axis length (3-axis length 13 axis length) was 15.
- the BET specific surface area was determined by the nitrogen adsorption method.
- the a-axis length, b-axis length, and c-axis length were calculated as number average values of values measured from 10 samples randomly selected from scanning electron micrographs.
- the ratio of the a-axis length to the b-axis length is the number average value of the values obtained by dividing the a-axis length by the b-axis length for each of the 10 samples described above. Calculated.
- the bemite (C-1) obtained in 1 was mixed and the total amount of the component (F-1), the component (B 2_ l) and the component (C 1 1) was 100 parts by weight.
- the propylene block copolymer (F-1) used was produced according to the method described in the examples of JP-A-2006-083251.
- MFR of the propylene block copolymer (F_ l) is 49 g / 10 min
- propylene one ethylene random copolymer portion ( (Elastomer part) (B 1-1) content is 13% by weight.
- Example 2 As described in Table 2, the evaluation was performed in the same manner as in Example 3 except that 1.0 part of 2_naphthoic acid (manufactured by Tokyo Chemical Industry Co., Ltd.) (D-1) was added.
- Boehmite (C-2) is used instead of boehmite (C-1), and the blending ratio shown in Table 4 is used for propylene block copolymer (F-1), boehmite (C 1-2) and ethylene. Evaluation was carried out in the same manner as in Example 1 except that a single-octene copolymer elastomer (DuPont Dow Elastomer Co., Ltd., trade name: ENGAGE 8200) (B 2 _1) was mixed.
- a single-octene copolymer elastomer DuPont Dow Elastomer Co., Ltd., trade name: ENGAGE 8200
- E-1 Talc (trade name MWHST, Hayashi Kasei Co., Ltd.)
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CN200880009258A CN101679694A (zh) | 2007-03-23 | 2008-03-24 | 勃姆石填充的聚丙烯树脂组合物及由其制备的模塑制品 |
DE112008000719T DE112008000719T5 (de) | 2007-03-23 | 2008-03-24 | Polypropylenharzzusammensetzung mit Böhmit-Füllstoff und diese umfassender Formkörper |
US12/531,555 US20100104856A1 (en) | 2007-03-23 | 2009-03-24 | Boehmite-filled polypropylene resin composition and molded article comprising the same |
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JP2007076408 | 2007-03-23 | ||
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Citations (11)
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JPS6046923A (ja) * | 1983-08-23 | 1985-03-14 | Mitsubishi Chem Ind Ltd | ベ−マイト |
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JP2003286372A (ja) * | 2002-03-29 | 2003-10-10 | Sumitomo Chem Co Ltd | ポリオレフィン樹脂射出成形体 |
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US20040265219A1 (en) * | 2002-04-19 | 2004-12-30 | Saint-Gobain Ceramics & Plastics, Inc. | Seeded boehmite particulate material and methods for forming same |
JP2005126287A (ja) * | 2003-10-24 | 2005-05-19 | Sumitomo Chemical Co Ltd | 水酸化アルミニウム、それを含む水酸化アルミニウムスラリー及び樹脂組成物、並びにその製造方法 |
JP2005290101A (ja) | 2004-03-31 | 2005-10-20 | Sumitomo Chemical Co Ltd | プロピレン系ブロック共重合体の製造方法 |
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JP2006083251A (ja) | 2004-09-15 | 2006-03-30 | Sumitomo Chemical Co Ltd | ポリプロピレン系樹脂組成物およびそれからなる射出成形体 |
JP2006160541A (ja) | 2004-12-03 | 2006-06-22 | Sumitomo Chemical Co Ltd | 針状水酸化アルミニウムの製造方法 |
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2008
- 2008-03-21 JP JP2008073244A patent/JP2008266614A/ja active Pending
- 2008-03-24 WO PCT/JP2008/056253 patent/WO2008117876A1/ja active Application Filing
- 2008-03-24 DE DE112008000719T patent/DE112008000719T5/de not_active Withdrawn
- 2008-03-24 CN CN200880009258A patent/CN101679694A/zh active Pending
-
2009
- 2009-03-24 US US12/531,555 patent/US20100104856A1/en not_active Abandoned
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JPS6046923A (ja) * | 1983-08-23 | 1985-03-14 | Mitsubishi Chem Ind Ltd | ベ−マイト |
JPH0450105A (ja) * | 1990-06-15 | 1992-02-19 | Nissan Chem Ind Ltd | 金属酸化物微粒子の製造方法 |
JP2000239014A (ja) * | 1999-02-19 | 2000-09-05 | Kawai Sekkai Kogyo Kk | 針状ベーマイトの製造方法 |
JP2001261976A (ja) * | 2000-03-16 | 2001-09-26 | Otsuka Chem Co Ltd | 樹脂組成物 |
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JP2006169447A (ja) * | 2004-12-17 | 2006-06-29 | Sumitomo Chemical Co Ltd | 樹脂組成物およびその成形体 |
JP2006193339A (ja) * | 2005-01-11 | 2006-07-27 | Sumitomo Chemical Co Ltd | 表面被覆無機粒子 |
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JP2008106100A (ja) * | 2006-10-24 | 2008-05-08 | Sumitomo Chemical Co Ltd | 結晶性熱可塑性樹脂組成物 |
Also Published As
Publication number | Publication date |
---|---|
CN101679694A (zh) | 2010-03-24 |
DE112008000719T5 (de) | 2010-02-11 |
US20100104856A1 (en) | 2010-04-29 |
JP2008266614A (ja) | 2008-11-06 |
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