Classifications

• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
  • C08L81/02—Polythioethers; Polythioether-ethers
• • 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
  • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
  • C08K3/013—Fillers, pigments or reinforcing additives
• • 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
  • C08K3/02—Elements
  • C08K3/04—Carbon
• • 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
  • C08K7/00—Use of ingredients characterised by shape
  • C08K7/02—Fibres or whiskers
  • C08K7/04—Fibres or whiskers inorganic
  • C08K7/14—Glass
• • 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
• • C—CHEMISTRY; METALLURGY
  • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
  • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
  • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
  • C08L33/04—Homopolymers or copolymers of esters
  • C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
• • 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
  • C08K3/24—Acids; Salts thereof
  • C08K3/26—Carbonates; Bicarbonates
  • C08K2003/265—Calcium, strontium or barium carbonate
• • 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
  • C08K2201/00—Specific properties of additives
  • C08K2201/002—Physical properties
  • C08K2201/003—Additives being defined by their diameter
• • 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
  • C08K2201/00—Specific properties of additives
  • C08K2201/011—Nanostructured additives

Definitions

• the present invention relates to a resin composition containing a polyarylene sulfide resin, a filler and carbon black, and a method for suppressing a decrease in bending fracture strain of the polyarylene sulfide resin composition.
• PAS resin Polyarylene sulfide (hereinafter also referred to as “PAS”) resin, represented by polyphenylene sulfide (hereinafter also referred to as “PPS”) resin, has high heat resistance, mechanical properties, chemical resistance and dimensional stability. And flame retardancy. For this reason, PAS resin is widely used for electrical / electronic equipment component materials, automotive equipment component materials, chemical equipment component materials, and the like, and is particularly used for applications with a high use environment temperature.
• PAS resin has high heat resistance, mechanical properties, chemical resistance, dimensional stability, and flame retardancy, but has poor toughness and is fragile. Therefore, in general, PAS resin is often used as a composite material (resin composition) to which a filler such as glass fiber is added, and the mechanical strength such as toughness is improved by adding the filler. it is conceivable that.
• an embodiment of the present invention is a resin composition
• a resin composition comprising a PAS resin, a filler having a high concentration of 65 to 300% by weight with respect to 100 parts by mass of the PAS resin, and carbon black, and has a black color tone, And it makes it a subject to provide the resin composition in which the fall of performance, such as a bending fracture distortion characteristic, was suppressed, and the method of suppressing the fall of the bending fracture distortion of a resin composition.
• Embodiments of the present invention relate to the following resin composition.
• the content of the (C) carbon black is 0.2 to 6 parts by mass with respect to 100 parts by mass of the (A) polyarylene sulfide resin, according to any one of (1) to (3) Resin composition.
• a resin comprising (A) polyarylene sulfide resin, 65 to 300 parts by mass of (B) filler with respect to 100 parts by mass of (A) polyarylene sulfide resin, and (C) carbon black.
• the resin by using 0.2 parts by mass or more of carbon black having an arithmetic average particle diameter of 10 to 15 nm as the (C) carbon black with respect to 100 parts by mass of the (A) polyarylene sulfide resin, the resin A method for suppressing a decrease in bending fracture strain of a composition.
• the content of the (C) carbon black is 0.2 to 6 parts by mass with respect to 100 parts by mass of the (A) polyarylene sulfide resin, according to any one of (9) to (11) the method of.
• a specific carbon black is selected in a resin composition containing a PAS resin, a filler having a high concentration of 65 to 300% by weight with respect to 100 parts by mass of the PAS resin, and carbon black.
• a decrease in performance such as bending fracture strain characteristics can be suppressed, and a black color tone can be provided.
• strain of a resin composition can be suppressed.
• the resin composition of the embodiment of the present invention comprises (A) polyarylene sulfide resin, 65 to 300 parts by mass of (B) filler with respect to 100 parts by mass of (A) polyarylene sulfide resin, and (A And (C) carbon black having an arithmetic average particle size of 10 to 15 nm and not less than 0.2 parts by mass with respect to 100 parts by mass of the polyarylene sulfide resin.
• the molded body obtained using the above resin composition can be used for electrical / electronic equipment part materials, automotive equipment part materials, chemical equipment part materials, watering equipment parts, and the like. It can be preferably used for parts around engines related to automobiles and vehicles. Moreover, the said resin composition can be preferably used also for insert molding.
• the polyarylene sulfide resin used in the present invention has a repeating unit — (Ar—S) — (“Ar” represents an arylene group) as a main constituent component.
• a PAS resin having a generally known molecular structure can be used.
• the arylene group is not particularly limited.
• the PAS resin may be a homopolymer consisting of only one type of repeating unit or a copolymer containing a plurality of types of repeating units.
• an arylene group having a p-phenylene sulfide group as a repeating unit is preferably used.
• a homopolymer having a p-phenylene sulfide group as a repeating unit has high heat resistance, high strength, high rigidity, and high dimensional stability in a wide temperature range.
• arylene sulfide groups containing an arylene group a combination of two or more arylene sulfide groups having different arylene groups can be used.
• a combination containing a p-phenylene sulfide group and an m-phenylene sulfide group is preferable from the viewpoint of physical properties such as heat resistance, moldability, and mechanical properties.
• a polymer containing a p-phenylene sulfide group in a proportion of 70 mol% or more is more preferable, and a polymer containing a proportion of 80 mol% or more is more preferable.
• the PAS resin having a phenylene sulfide group is a PPS resin.
• the PAS resin can be produced by a conventionally known polymerization method.
• a PAS resin produced by a general polymerization method is usually washed several times with water or acetone in order to remove by-product impurities and the like, and then washed with acetic acid, ammonium chloride or the like.
• the end of the PAS resin contains a carboxyl end group in a predetermined amount.
• the weight average molecular weight (Mw) of the PAS resin used in the present invention is not particularly limited, but is preferably 15000 or more and 40000 or less, and more preferably 20000 or more and 38000 or less. By being in such a range, it becomes a resin composition having a better balance between mechanical properties and fluidity.
• the weight average molecular weight (Mw) was measured by high-temperature gel permeation chromatography (measuring device; Senshu Science “SSC-7000”, UV detector (detection wavelength: 360 nm)), and the weight average molecular weight was calculated in terms of standard polystyrene. It is a calculated value.
• the resin composition in the embodiment of the present invention includes 65 to 300 parts by mass of a filler with respect to 100 parts by mass of the polyarylene sulfide resin.
• the filler may be either an inorganic or organic filler, or a combination thereof.
• any of a fibrous shape, a granular shape, and a plate shape may be used, and these can be selected according to the purpose.
• fibrous fillers include glass fibers, carbon fibers, silica fibers, silica / alumina fibers, zirconia fibers, boron nitride fibers, boron fibers, potassium titanate fibers, and metal fibers such as stainless steel, aluminum, titanium, copper, and brass.
• Inorganic fibrous substances such as the like.
• High melting point organic fiber materials such as polyamide, fluororesin, and acrylic resin can also be used.
• the granular fillers include silica, quartz powder, glass beads, glass powder, calcium silicate, aluminum silicate, kaolin, talc, clay, diatomaceous earth, wollastonite, silicate, iron oxide, titanium oxide, zinc oxide, etc.
• Examples include metal oxides, metal carbonates such as calcium carbonate and magnesium carbonate, metal sulfates such as calcium sulfate and barium sulfate, silicon carbide, silicon nitride, boron nitride, and various metal powders.
• Examples of the plate-like filler include mica and glass flakes.
• a filler may be used individually by 1 type, or may use 2 or more types together.
• the filler glass fiber, calcium carbonate, or a combination thereof is preferably used.
• the filler preferably includes glass fibers.
• the fiber diameter of the glass fiber is not particularly limited, but may be, for example, 9 ⁇ m or more and 13 ⁇ m or less.
• the fiber diameter of glass fiber means the long diameter of the fiber cross section of glass fiber.
• the cross-sectional shape of the glass fiber may be, for example, a perfect circle or an ellipse. Moreover, it does not specifically limit about the kind of glass fiber, For example, although A glass, C glass, E glass, etc. can be used, it is preferable to use E glass (non-alkali glass) among them. Further, the glass fiber may be subjected to surface treatment or not. Examples of the surface treatment for glass fiber include treatment with a coating agent such as epoxy, acrylic, urethane, or a sizing agent, and treatment with a silane coupling agent such as aminosilane or epoxysilane.
• a coating agent such as epoxy, acrylic, urethane, or a sizing agent
• silane coupling agent such as aminosilane or epoxysilane.
• chopped glass fibers obtained by cutting a plurality of these fibers into a predetermined length.
• the cut length of the chopped glass fiber is not particularly limited, and can be, for example, about 1 to 10 mm.
• the average particle diameter may be, for example, 10 ⁇ m or more and 50 ⁇ m or less.
• calcium carbonate Although it does not specifically limit as calcium carbonate, for example, heavy calcium carbonate, precipitated calcium carbonate (light calcium carbonate, colloidal calcium carbonate) etc. can be used. Moreover, you may use the calcium carbonate (surface treatment calcium carbonate) which surface-treated these calcium carbonates, for example with the fatty acid, fatty acid ester, resin acid, a higher alcohol addition isocyanate compound, etc.
• the filler is preferably contained in an amount of 65 to 300 parts by mass, more preferably 65 to 200 parts by mass, and still more preferably 100 parts by mass of the polyarylene sulfide resin. 68 to 160 parts by mass are included.
• the amount of the glass fiber is not particularly limited, but for example, from the viewpoint of physical properties such as mechanical properties, it is preferably contained by 50% by mass or more based on the total amount of the filler.
• the resin composition according to the embodiment of the present invention includes carbon black having an arithmetic average particle diameter of 10 to 15 nm and 0.2 parts by mass or more with respect to 100 parts by mass of the polyarylene sulfide resin.
• Examples of the carbon black include furnace black, thermal black, channel black, ketjen black and the like according to manufacturing method, and gas black, oil black, acetylene black and the like according to raw materials. These carbon blacks may be used alone or in combination with a plurality of carbon blacks.
• the arithmetic average particle size of carbon black is preferably 10 to 15 nm.
• the arithmetic average particle diameter of carbon black is an arithmetic average diameter obtained by observing 1000 carbon black particles with an electron microscope.
• the black color tone is excellent, and when it is 15 nm or less, it is excellent in suppressing deterioration in performance such as bending fracture strain characteristics.
• the arithmetic average particle diameter of carbon black is more preferably 13 to 15 nm from the viewpoint of the balance between the black color tone and the effect of suppressing the deterioration in performance such as bending fracture strain characteristics.
• the carbon black is preferably contained in an amount of 0.2 parts by mass or more, more preferably 0.2 to 6 parts by mass with respect to 100 parts by mass of the polyarylene sulfide resin in the resin composition.
• carbon black is 0.2 part by mass or more with respect to 100 parts by mass of the polyarylene sulfide resin, the resulting composition is excellent in black color tone.
• the carbon black is 6 parts by mass or less with respect to 100 parts by mass of the polyarylene sulfide resin, the mechanical properties such as bending fracture strain characteristics are excellent.
• the carbon black content is more preferably 0.2 to 4 parts by mass, and still more preferably 0.004 parts by mass with respect to 100 parts by mass of the polyarylene sulfide resin, from the viewpoint of balance of performance such as black color tone and bending fracture strain characteristics. 3 to 2.5 parts by mass, particularly preferably 0.3 to 2.0 parts by mass is contained.
• the nitrogen adsorption specific surface area (NSA) of carbon black is not particularly limited, but is preferably 160 to 600 m 2 / g.
• the nitrogen adsorption specific surface area of carbon black is a specific surface area determined by the S-BET formula from the nitrogen adsorption amount in JISK6217. In general, the smaller the particle size, the greater the specific surface area.
• DBP (dibutyl phthalate) absorption amount of carbon black is not particularly limited, but is preferably 45 ⁇ 200cm 2 / 100g.
• the DBP absorption amount of carbon black is the amount of DBP (dibutyl phthalate) absorbed by 100 g of carbon black, and is a value measured according to the method described in JIS K6221.
• the volatile content of carbon black is not particularly limited, but is preferably 7% or less.
• the volatile content of carbon black is the volatile (weight loss) content when carbon black is heated at 950 ° C. for 7 minutes (ratio of the volatile content to the original weight).
• the resin composition of the embodiment of the present invention preferably contains an elastomer in order to further improve toughness and heat shock resistance.
• the elastomer include an epoxy group-containing olefin copolymer.
• An elastomer can be used individually by 1 type or in combination of 2 or more types.
• the epoxy group-containing olefin copolymer is preferably an olefin copolymer containing a structural unit derived from an ⁇ -olefin and a structural unit derived from a glycidyl ester of an ⁇ , ⁇ -unsaturated acid.
• the epoxy group-containing olefin copolymer is composed of ⁇ -olefin-derived structural units, and ⁇
• a structural unit derived from a glycidyl ester of .beta.-unsaturated acid it is also preferable to include a structural unit derived from a (meth) acrylic acid ester.
• (meth) acrylic acid ester is also referred to as (meth) acrylate.
• glycidyl (meth) acrylate is also referred to as glycidyl (meth) acrylate.
• (meth) acrylic acid” means both acrylic acid and methacrylic acid
• (meth) acrylate” means both acrylate and methacrylate.
• the ⁇ -olefin is not particularly limited, and examples thereof include ethylene, propylene, butylene and the like, and ethylene is particularly preferable.
• the ⁇ -olefin can be used alone or in combination of two or more.
• the epoxy group-containing olefin copolymer contains an ⁇ -olefin-derived structural unit, flexibility is easily imparted to a molded product formed using the polyarylene sulfide resin composition.
• the molded product has flexibility, it is easy to increase the bonding strength between the insert member, particularly the metal insert member and the resin member, when the insert molded product is manufactured.
• the glycidyl ester of ⁇ , ⁇ -unsaturated acid is not particularly limited, and examples thereof include glycidyl acrylate, glycidyl methacrylate, glycidyl ethacrylate, and the like, and glycidyl methacrylate is particularly preferable.
• the glycidyl esters of ⁇ , ⁇ -unsaturated acid can be used alone or in combination of two or more.
• the epoxy group-containing olefin copolymer contains a glycidyl ester of ⁇ , ⁇ -unsaturated acid, it is easy to increase the bonding strength between the insert member and the resin member when manufacturing an insert molded product.
• the (meth) acrylic acid ester is not particularly limited.
• methyl acrylate is particularly preferable.
• the (meth) acrylic acid ester can be used alone or in combination of two or more.
• the epoxy group-containing olefin copolymer includes a structural unit derived from (meth) acrylic acid ester, it is easy to increase the bonding strength between the insert member and the resin member when manufacturing an insert molded product.
• the epoxy group-containing olefin copolymer can be produced by performing copolymerization by a known method.
• the copolymer can be obtained by performing copolymerization by a generally well-known radical polymerization reaction.
• the type of copolymer is not particularly limited, and may be, for example, a random copolymer or a block copolymer.
• olefin copolymer examples include polymethyl methacrylate, polyethyl methacrylate, polymethyl acrylate, polyethyl acrylate, polybutyl acrylate, poly-2-ethylhexyl acrylate, polystyrene, polyacrylonitrile.
• An olefin-based graft copolymer in which acrylonitrile / styrene copolymer, butyl acrylate / styrene copolymer, or the like is chemically bonded in a branched or cross-linked structure may be used.
• An epoxy group-containing olefin copolymer containing a structural unit derived from an ⁇ -olefin and a structural unit derived from a glycidyl ester of an ⁇ , ⁇ -unsaturated acid may be a structural unit derived from another copolymer component, if necessary. Can be contained.
• examples of the epoxy group-containing olefin copolymer include a glycidyl methacrylate-modified ethylene copolymer, a glycidyl ether-modified ethylene copolymer, and the like, and among them, a glycidyl methacrylate-modified ethylene copolymer. Is preferred.
• examples of the glycidyl methacrylate-modified ethylene copolymer include glycidyl methacrylate graft-modified ethylene polymer, ethylene-glycidyl methacrylate copolymer, and ethylene-glycidyl methacrylate-methyl acrylate copolymer.
• an ethylene-glycidyl methacrylate copolymer and an ethylene-glycidyl methacrylate-methyl acrylate copolymer are preferable, and an ethylene-glycidyl methacrylate-methyl acrylate copolymer is preferable because a particularly excellent metal resin composite molded body can be obtained.
• Specific examples of the ethylene-glycidyl methacrylate copolymer and the ethylene-glycidyl methacrylate-methyl acrylate copolymer include “Bond First (registered trademark)” (manufactured by Sumitomo Chemical Co., Ltd.).
• Examples of the glycidyl ether-modified ethylene copolymer include glycidyl ether graft-modified ethylene copolymer and glycidyl ether-ethylene copolymer.
• the resin composition of the embodiment of the present invention preferably contains 3 to 35 parts by mass, and preferably 7 to 25 parts by mass of the elastomer with respect to 100 parts by mass of the polyarylene sulfide resin. More preferred.
• the resin composition of embodiment of this invention may contain other resin in the range which does not impair the effect of this invention.
• a nucleating agent for example, pigments other than carbon black (for example, inorganic calcined pigments), antioxidants, stabilizers, plasticizers, lubricants, mold release agents,
• additives such as a flame retardant may be added.
• the resin composition which provided the desired characteristic is also contained in the PAS type-resin composition used by this invention.
• the resin composition of the embodiment of the present invention can be prepared by a conventionally known method. Specifically, for example, after mixing the above-described components, a method of preparing a pellet by kneading and extruding with an extruder, once preparing a pellet having a different composition, mixing the pellet in a predetermined amount, and providing for molding, Any method such as a method of obtaining a molded product having a desired composition after molding or a method of directly charging one or more of each component into a molding machine can be suitably used.
• the method for suppressing the decrease in bending fracture strain is (A) polyarylene sulfide resin and (B) 65 to 300 parts by mass of (B) with respect to 100 parts by mass of (A) polyarylene sulfide resin.
• a resin composition containing a filler and (C) carbon black (C) carbon black having an arithmetic average particle diameter of 10 to 15 nm is used as (C) carbon black, and (A) 100 parts by mass of polyarylene sulfide resin.
• Bending fracture strain (F ⁇ ) is a characteristic that is considered to be an index of heat shock resistance.
• “suppressing a decrease in the bending rupture strain of the resin composition” means that the bending rupture strain of the resin composition is A, and the bending rupture strain of the resin composition to which no carbon black is added is B. Then, as expressed by the following formula, the ratio of A to B (F ⁇ ratio) ((A / B) ⁇ 100) is 96.0% or more. (A / B) ⁇ 100 (%) ⁇ 96.0% The ratio of A to B (F ⁇ ratio) is more preferably 97.0% or more.
• Bending fracture strain is a test piece (width 10 mm, thickness 4 mmt) according to ISO316 at a cylinder temperature of 320 ° C. and a mold temperature of 150 ° C. by injection molding using a resin composition. It is a value measured according to ISO178.
• PAS resin PPS resin (polymerization average molecular weight Mw: 20000), “Fortron KPS” manufactured by Kureha Corporation
• the rotational speed of the stirrer was immediately increased to 400 rpm, and 340 g of water was injected.
• the temperature was raised to 260 ° C. over 1 hour, and the reaction was carried out at that temperature for 5 hours to carry out post polymerization.
• the reaction mixture is cooled to near room temperature, and the contents are sieved using a 100-mesh screen, and then the acetone is washed three times, washed three times with water, and 0.3%. Washing with acetic acid was performed, followed by washing with water four times to obtain a washed granular polymer.
• the granulated polymer was dried at 105 ° C. for 13 hours. This operation was repeated 5 times to obtain a necessary amount of polymer (PPS resin).
• the weight average molecular weight of the PAS resin was measured. Specifically, 1-chloronaphthalene was used as a solvent, heated and dissolved in an oil bath at 230 ° C./10 minutes, and purified by high-temperature filtration as necessary to prepare a 0.05 mass% concentration solution. A high-temperature gel permeation chromatographic method (measuring device: Senshu Scientific “SSC-7000”, UV detector (detection wavelength: 360 nm)) was performed, and the weight average molecular weight was calculated in terms of standard polystyrene. As a result of the calculation, as described above, the weight average molecular weight of the PAS resin was Mw: 20000.
• (B) Filler (B-1) Glass fiber: “Chopped Strand ECS03T-747H” manufactured by Nippon Electric Glass Co., Ltd. (fiber diameter: 10.5 ⁇ m)
• Olefin copolymer “Bond First (registered trademark) 7M” manufactured by Sumitomo Chemical Co., Ltd. (glycidyl methacrylate (GMA) content: 6 mass%)
• Pentaerythritol stearate ester “Unistar (registered trademark) H476” manufactured by NOF Corporation
• each raw material component shown in Table 1 was dry blended, and then melt-kneaded with a twin-screw extruder having a cylinder temperature of 320 ° C. to be pelletized. Glass fiber and calcium carbonate (both fillers) were introduced into an extruder using a side feeder and melt kneaded.
• Table 1 the compounding quantity of each component is a mass part. The following evaluation was performed about the obtained resin composition. The results are shown in Table 2.
• CB means carbon black.
• the reference resin composition to which no carbon black is added is shown in Tables 1 and 2 as reference examples. The following evaluation items are similarly shown as reference examples.
• the ratio of the bending rupture strain to the bending rupture strain (F ⁇ ratio (%)) when the carbon black content is 0 is 96% or more. It can also be seen that the decrease in bending fracture strain is suppressed. It can also be seen that the tensile strength, tensile elongation, flexural strength, flexural modulus, and Charpy impact strength maintain substantially the same physical property values as compared with the case where the carbon black content is 0. . It can also be seen that the resin compositions of Examples 1 to 9 all show a good black color tone (blackness (L value)).

Landscapes

• Chemical & Material Sciences (AREA)
• Health & Medical Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Medicinal Chemistry (AREA)
• Polymers & Plastics (AREA)
• Organic Chemistry (AREA)
• Compositions Of Macromolecular Compounds (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=58239421

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (3)

Citations (3)

Family Cites Families (6)

• 2015
  • 2015-09-11 JP JP2015179254A patent/JP6203221B2/ja active Active
• 2016
  • 2016-07-14 CN CN201680052630.0A patent/CN108026369B/zh active Active
  • 2016-07-14 KR KR1020187009862A patent/KR101939186B1/ko active IP Right Grant
  • 2016-07-14 WO PCT/JP2016/070797 patent/WO2017043176A1/ja active Application Filing
  • 2016-07-22 TW TW105123177A patent/TWI670307B/zh active

Patent Citations (3)

Also Published As

Similar Documents

Legal Events