WO2015002217A1 - プロピレン系重合体組成物からなる自動二輪車用リアグリップ - Google Patents
プロピレン系重合体組成物からなる自動二輪車用リアグリップ Download PDFInfo
- Publication number
- WO2015002217A1 WO2015002217A1 PCT/JP2014/067617 JP2014067617W WO2015002217A1 WO 2015002217 A1 WO2015002217 A1 WO 2015002217A1 JP 2014067617 W JP2014067617 W JP 2014067617W WO 2015002217 A1 WO2015002217 A1 WO 2015002217A1
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- WIPO (PCT)
- Prior art keywords
- propylene polymer
- rear grip
- weight
- parts
- motorcycle
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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
- C08L23/12—Polypropene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J7/00—Luggage carriers
- B62J7/02—Luggage carriers characterised by the arrangement thereof on cycles
- B62J7/04—Luggage carriers characterised by the arrangement thereof on cycles arranged above or behind the rear wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K19/00—Cycle frames
- B62K19/02—Cycle frames characterised by material or cross-section of frame members
- B62K19/16—Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly of plastics
-
- 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
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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
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
Definitions
- the present invention relates to a motorcycle rear grip made of a propylene polymer composition containing glass fibers.
- the fiber reinforced resin molded body is lightweight and highly rigid, it is used in various fields including electric equipment, automobiles, housing equipment, and medical equipment.
- a fiber reinforced resin molded article a fiber reinforced resin molded article formed by using glass fiber as a reinforcing fiber and polyamide or polypropylene as a thermoplastic resin as a resin is known.
- Such a fiber reinforced resin molded body is applied to a fan shroud or the like in an engine room in the motorcycle field.
- a glass fiber reinforced polyamide resin is used for the rear grip for a motorcycle because of the mechanical performance required by the product and the design.
- Glass fiber reinforced polyamide resin is a product that uses glass fiber reinforced polypropylene resin, which has less water absorption than polyamide resin, from the viewpoints of changes in physical properties before and after water absorption, improved fuel economy due to weight reduction of parts, and economy. Is required.
- the surface of the resulting molded product may have surface irregularities due to floating of the reinforcing fibers, etc. It is not used for products that require such design.
- Patent Document 1 proposes to add a polypropylene resin having a syndiotactic structure.
- a polypropylene resin having a syndiotactic structure.
- the effect of improving the surface appearance is slight, and conversely, the mechanical strength is reduced.
- Patent Documents 2 and 3 propose to improve the appearance of the fiber-reinforced polypropylene resin molded body by a special molding method. If these molding methods are adopted, the surface appearance of the fiber-reinforced polypropylene resin molded body is improved, but if the fiber content exceeds 30%, the appearance improvement effect cannot be said to be sufficient. In addition, the manufacturing equipment becomes complicated and the cost is high, so that the economic advantage of polypropylene resin may be impaired.
- An object of the present invention is to provide a rear grip for a motorcycle having an excellent surface appearance made of a propylene polymer composition containing glass fibers.
- the present invention relates to a propylene polymer (A) of 52 to 74.5 parts by weight, a glass fiber (B) of 25 to 45 parts by weight, and a modified propylene polymer (C ) 0.5-3 parts by weight (provided that the total of (A), (B) and (C) is 100 parts by weight)
- the present invention relates to a motorcycle rear grip characterized by being in a range of 4 mm or more and less than 20 mm.
- the rear grip for motorcycles of the present invention has a small surface roughness of the exposed surface, high strength and good appearance.
- FIG. 1 is an external view of a motorcycle provided with a rear grip for a motorcycle according to the present invention.
- FIG. 2 is an enlarged top view of the motorcycle rear grip (part II) of FIG.
- FIG. 3 is an external view of a motorcycle rear grip according to the present invention.
- FIG. 4 is a partial cross-sectional view (IV-IV) of the part (a) of FIG.
- FIG. 5 is a sectional view (VV) of the part (b) of FIG. 6 is a cross-sectional view (VI-VI) of the portion (c) of FIG.
- FIG. 7 is a partial cross-sectional view (VII-VII) of part (d) of FIG.
- Propylene polymer (A) which is one of the components of the propylene polymer composition forming the rear grip for a motorcycle of the present invention, is a heavy polymer composed mainly of propylene, which is generally manufactured and sold under the name of polypropylene.
- the density is 0.890 to 0.930 g / cm 3
- the MFR (ASTM D1238 load 2160 g, temperature 230 ° C.) is 1 to 20 g / 10 minutes, preferably 2 to 10 g / 10 minutes, more preferably 5 Homopolymer of propylene up to 10 g / 10 min or other small amounts of ⁇ -olefin such as 5 mol% or less, such as ethylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 4-methyl Random copolymers with -1-pentene or the like, or propylene / ⁇ -olefin containing propylene homopolymer and a small amount of ⁇ -olefin
- a block copolymer is a composition of the emissions random copolymer.
- these propylene polymers a motorcycle rear grip from which a propylene homopolymer is obtained is preferable because of excellent heat resistance and rigidity.
- Glass fiber (B) which is one of the components of the propylene polymer composition forming the rear grip for a motorcycle of the present invention, is a glass fiber that is manufactured and sold for reinforcing a thermoplastic resin, although there is no restriction
- the length of the glass fiber (B) according to the present invention may be broken when mixed with the propylene polymer by an extruder or the like, and is not particularly limited, but is preferably 0.3 mm to 10 mm from the viewpoint of workability. Is preferably 2 mm to 7 mm.
- the length of the glass fiber (B) in the propylene polymer composition according to the present invention is 2 mm to 5 mm.
- the thickness of the glass fiber (B) is not particularly limited, but the average fiber diameter is 1 to 25 ⁇ m, preferably 5 to 17 ⁇ m.
- the aspect ratio (average fiber length / fiber diameter) is preferably 25 or less, but glass fibers having different aspect ratios can be mixed and used at an appropriate ratio.
- the cross-sectional shape of the glass fiber is not particularly limited, and a polygon such as a circle, eyebrows, gourds, an ellipse, a cylinder, or a rectangle can be used.
- the glass fiber (B) according to the present invention may be surface-treated with a silane coupling agent, a titanate coupling agent, an aluminate coupling agent, or the like.
- silane coupling agent here include vinyltrichlorosilane, vinyltriethoxysilane, vinyltrimethoxysilane, ⁇ -methacryloxypropyltrimethoxysilane, ⁇ - (3,4-epoxycyclohexyl) ethyltrimethoxysilane, ⁇ -Glycidoxypropyltrimethoxysilane, N- ⁇ (aminoethyl) ⁇ -aminopropyltrimethoxysilane, ⁇ -aminopropyltriethoxysilane, N-phenyl- ⁇ -aminopropyltrimethoxysilane, ⁇ -mercaptopropyltrimethoxy Examples thereof include silane and ⁇ -chloropropyltrimethoxysilane.
- the glass fiber (B) according to the present invention may be converged with an olefin resin, a styrene resin, an acrylic resin, a polyester resin, an epoxy resin, a urethane resin, or the like.
- the olefin resin or urethane resin used for the bundling treatment is used in a range that does not affect the physical properties of the entire composition.
- the glass fiber (B) according to the present invention may be coated with a metal such as nickel, copper, cobalt, silver, aluminum, iron, or an alloy thereof by a plating method or a vapor deposition method.
- a metal such as nickel, copper, cobalt, silver, aluminum, iron, or an alloy thereof by a plating method or a vapor deposition method.
- the modified propylene polymer (C) which is one of the components of the propylene polymer composition forming the rear grip for a motorcycle of the present invention, is a polymer graft-modified with an unsaturated carboxylic acid or a derivative thereof.
- the intrinsic viscosity [ ⁇ ] measured in decalin at 135 ° C. is usually in the range of 0.2 to 2.0 dl / g, more preferably 0.4 to 1.0 dl / g.
- the graft amount of the unsaturated carboxylic acid or derivative thereof in the modified propylene polymer (C) according to the present invention is usually in the range of 0.01 to 10% by weight, preferably 0.02 to 5% by weight. If the graft amount is too low, the adhesive strength may not be sufficient, and if it is too high, the crosslinking reaction tends to occur and the quality of the modified propylene polymer that can be obtained becomes difficult to stabilize.
- Examples of the unsaturated carboxylic acid or derivative thereof according to the present invention include acrylic acid, maleic acid, fumaric acid, tetrahydrophthalic acid, itaconic acid, citraconic acid, crotonic acid, isocrotonic acid, nadic acid (endocis-bicyclo [2. 2.1] unsaturated carboxylic acids such as hept-5-ene-dicarboxylic acid); or derivatives thereof such as acid halides, amides, imides, anhydrides, esters and the like.
- Specific examples of such derivatives include maleyl chloride, maleimide, maleic anhydride, citraconic anhydride, monomethyl maleate, dimethyl maleate, glycidyl maleate and the like.
- unsaturated dicarboxylic acids or acid anhydrides thereof are suitable, and maleic acid, nadic acid or acid anhydrides thereof are particularly preferably used.
- the modified propylene polymer (C) according to the present invention is prepared by various known methods, for example, by dissolving the propylene polymer in an organic solvent, and then adding the unsaturated carboxylic acid or its derivative and, if necessary, the resulting solution.
- an extruder for 0.5 to 15 hours, preferably 1 to 10 hours, or an extruder
- a solvent-free propylene-based polymer an unsaturated carboxylic acid or a derivative thereof and, if necessary, a radical initiator such as an organic peroxide, usually above the melting point of the propylene-based polymer
- a method of reacting at 180 to 350 ° C. for 0.5 to 10 minutes can be employed.
- the propylene polymer used as the base of the modified propylene polymer (C) according to the present invention may be a propylene polymer in the same category as the propylene polymer (A), but measured in decalin at 135 ° C.
- the intrinsic viscosity [ ⁇ ] is usually in the range of 0.2 to 2.0 dl / g, more preferably 0.4 to 1.0 dl / g.
- the ethylene / ⁇ -olefin random copolymer (D) which is one of the components of the propylene polymer composition forming the rear grip for a motorcycle of the present invention, is ethylene and has 3 or more carbon atoms, preferably 4 to 10 carbon atoms.
- a random copolymer of ⁇ -olefin preferably having a density of 865 to 910 kg / m 3 , more preferably 875 to 900 kg / m 3 , and preferably an ethylene content of 70 to 95 mol%, more preferably 80 93 mol%, preferably X-ray crystallinity 5-40%, more preferably 7-30%, preferably molecular weight distribution (Mw / Mn) measured by GPC is 3 or less, more preferably 2.5
- the melting point is 40 to 100 ° C., more preferably 60 to 90 ° C., as determined from the endothermic curve at a heating rate of 10 ° C./min by DSC.
- M D1238 load 2160 g, temperature 190 ° C.
- the propylene-based polymer composition forming the rear grip for a motorcycle according to the present invention comprises 52 to 74.5 parts by weight of the propylene-based polymer (A), preferably 58 to 69.5 parts by weight, and the glass fiber ( B) is 25 to 45 parts by weight, preferably 30 to 40 parts by weight, and the modified propylene polymer (C) is 0.5 to 3 parts by weight, preferably 0.5 to 2 parts by weight (provided that (A ), (B) and (C) are 100 parts by weight.)
- a composition having a glass fiber (B) content of less than 25 parts by weight has a small rigidity of the obtained molded article, and a sense of rigidity necessary as product characteristics cannot be obtained.
- the composition having a glass fiber (B) content of more than 45 parts by weight the glass fiber floats on the surface of the resulting molded article, and the good surface appearance is impaired.
- a composition having a modified propylene polymer (C) content of less than 0.5 parts by weight has insufficient adhesion to glass fibers, and a predetermined mechanical strength cannot be obtained.
- the content of the modified propylene polymer (C) exceeds 3 parts by weight, the compatibility with the polypropylene resin is lowered, and the mechanical strength may be lowered.
- the propylene polymer composition according to the present invention includes the ethylene / ⁇ -olefin random copolymer.
- (D) is included, a copolymer excellent in paintability can be obtained, which is preferable.
- the propylene polymer composition according to the present invention contains the ethylene / ⁇ -olefin random copolymer (D), the total of (A), (B) and (C) is usually 100 parts by weight. On the other hand, it contains 10 to 25 parts by weight, preferably 12 to 20 parts by weight.
- the antioxidant in the propylene polymer composition according to the present invention, the antioxidant, weathering stabilizer, antistatic agent, antifogging agent, anti-blocking agent, lubricant, nucleating agent, and the like that are usually used within the range not impairing the object of the present invention.
- Additives such as pigments or other polymers can be blended as necessary.
- the propylene polymer composition according to the present invention includes the propylene polymer (A), the glass fiber (B), the modified propylene polymer (C), and, if necessary, the ethylene / ⁇ -olefin random copolymer.
- the rear grip for a motorcycle of the present invention is a molded body made of the propylene-based polymer composition according to the present invention, wherein the surface exposed portion has a thickness of 4 mm or more and less than 20 mm, preferably 5 to 17 mm.
- the surface exposed portion refers to a portion where the motorcycle rear grip attached to the motorcycle main body can be confirmed by human visibility without being hidden by the motor vehicle main body.
- FIG. 1 shows an external view of a motorcycle provided with a motorcycle rear grip 1 according to the present invention.
- FIG. 2 is an enlarged view of the attached motorcycle rear grip 1.
- the motorcycle rear grip 1 according to the present invention is mounted between a seat 2 and a rear fender 4 as shown in FIGS. 1 and 2.
- FIG. 3 is an external view of the rear grip 1 for a motorcycle according to the present invention.
- the mounting portion (d) of the motorcycle rear grip 1 according to the present invention is mounted between the seat 2 and the rear fender 4, so that it cannot be confirmed by the human field of view.
- the peripheral parts including the parts (a), (b), and (c) except for the attachment part (d) can be confirmed by the human field of view without being hidden by the motorcycle body.
- the motorcycle rear grip of the present invention can be molded using an injection molding machine equipped with a motorcycle rear grip mold.
- the propylene polymer composition according to the present invention is melted, preferably in the range of 180 to 250 ° C. Melted and injected.
- the resulting rear grip for a motorcycle is further made of glass. An excellent surface appearance with suppressed fiber floating and the like can be obtained. Further, after injection molding into a motorcycle rear grip mold maintained in a temperature range of 110 ° C. or higher and lower than 150 ° C., the mold may be cooled to a temperature at which it can be taken out.
- the physical properties of propylene polymer compositions, motorcycle rear grips and the like in Examples and Comparative Examples of the present invention were measured by the following methods.
- Melt flow rate (MFR) MFR was measured according to ISO 1133 at 230 ° C. and a load of 2.16 kg.
- Tensile fracture strength (TS: MPa) TS was measured according to ISO 527.
- Flexural modulus (FM: MPa) FM was measured according to ISO 178.
- Rz Ten-point average surface roughness
- the propylene polymer compositions in Examples and Comparative Examples of the present invention were obtained by the following method.
- the resulting propylene polymer composition had an MFR of 3 g / 10 min, a TS of 74 MPa, and an FM of 6500 MPa.
- a propylene polymer composition was obtained in the same manner as in Production Example 1 except that the amount of the propylene polymer (A) was 52 parts by weight and the amount of the glass fiber (B) was 47 parts by weight.
- the resulting propylene polymer composition had an MFR of 3 g / 10 min, a TS of 80 MPa, and an FM of 7700 MPa.
- Example 1 A test piece was obtained in the same manner as in Example 1 except that a test piece having a thickness of 2 mm was formed. The results are shown in Table 1.
- Example 2 A test piece was obtained in the same manner as in Example 1 except that a test piece having a thickness of 3 mm was formed. The results are shown in Table 1.
- the surface roughness (Rz) of a test piece having a glass fiber content of 35% by weight and a thickness of 4 mm and a thickness of 38 ⁇ m is 38 ⁇ m and the surface is smooth.
- Test pieces of 2 mm or less than 3 mm and less than 4 mm have a surface roughness (Rz) of 60 ⁇ m and 49 ⁇ m, respectively, and the surface is rough.
- the glass fiber content is 40 wt% in the propylene polymer composition. It can be seen that the surface roughness (Rz) is 48 ⁇ m and the surface is rough.
- Example 1 The propylene-based polymer composition obtained in Production Example 1 was injection molded using an injection molding machine (NADEM8500, manufactured by Meiki Seisakusho Co., Ltd.) at a heating temperature of 220 ° C. and a cooling temperature of 55 ° C., as shown in FIG. A rear grip for motorcycles that shows a unique shape was molded.
- NADEM8500 manufactured by Meiki Seisakusho Co., Ltd.
- the surface roughness (Rz) of the exposed surface of the rear grip for a motorcycle having a product thickness including the parts (a), (b) and (c) in the range of 5 to 15 mm is The surface roughness (Rz) of the mounting portion (d) of the rear grip for a motorcycle that is 26-29 ⁇ m and has a smooth surface, but is attached to a seat having a thickness of 20 mm and the surface is not exposed is 58 ⁇ m, The surface was rough.
Abstract
Description
本発明の自動二輪車用リアグリップを形成するプロピレン系重合体組成物の成分の一つであるプロピレン系重合体(A)は、一般にポリプロピレンの名称で製造・販売されているプロピレンを主体とした重合体で、通常、密度が0.890~0.930g/cm3、MFR(ASTM D1238 荷重2160g、温度230℃)が1~20g/10分、好ましくは2~10g/10分、更に好ましくは5~10g/10分のプロピレンの単独重合体若しくはプロピレンと他の少量例えば、5モル%以下のα-オレフィン、例えばエチレン、1-ブテン、1-ペンテン、1-ヘキセン、1-オクテン、4-メチル-1-ペンテン等とのランダム共重合体、あるいは、プロピレン単独重合体と少量のα‐オレフィンを含むプロピレン・α‐オレフィンランダム共重合体との組成物であるブロック共重合体である。これらプロピレン系重合体の中でも、プロピレンの単独重合体が得られる自動二輪車用リアグリップの耐熱性、剛性が優れるので好ましい。
本発明の自動二輪車用リアグリップを形成するプロピレン系重合体組成物の成分の一つであるガラス繊維(B)は、熱可塑性樹脂の補強用として、製造・販売されているガラス繊維であり、その種類は特に制限がないが、ロービングガラス、チョップドストランドガラス、ミルドガラスなどを用いることができる。また、これらは1種類でも、2種類以上を混合して用いてもよい。
本発明の自動二輪車用リアグリップを形成するプロピレン系重合体組成物の成分の一つである変性プロピレン系重合体(C)は、不飽和カルボン酸もしくはその誘導体でグラフト変性された重合体であり、135℃デカリン中で測定される固有粘度[η]が、通常0.2~2.0dl/g、より好ましくは0.4~1.0dl/gの範囲にある。
本発明の自動二輪車用リアグリップを形成するプロピレン系重合体組成物の成分の一つであるエチレン・α-オレフィンランダム共重合体(D)は、エチレンと炭素数3以上、好ましくは4~10のα-オレフィンとのランダム共重合体で、好ましくは、密度が865~910kg/m3、更に好ましくは875~900kg/m3、好ましくはエチレン含有量が70~95モル%、更に好ましくは80~93モル%、好ましくはX線による結晶化度が5~40%、更に好ましくは7~30%、好ましくはGPCで測定した分子量分布(Mw/Mn)が3以下、更に好ましくは2.5以下であり、好ましくはDSCによる昇温速度10℃/分での吸熱曲線から求めた融点が40~100℃、更に好ましくは60~90℃であり、MFR(ASTM D1238 荷重2160g、温度190℃)が好ましくは0.01~20g/10分、更には0.1~5g/10分の範囲にある。
本発明の自動二輪車用リアグリップを形成するプロピレン系重合体組成物は、前記プロピレン系重合体(A)を52~74.5重量部、好ましくは58~69.5重量部、前記ガラス繊維(B)を25~45重量部、好ましくは30~40重量部、及び前記変性プロピレン系重合体(C)を0.5~3重量部、好ましくは0.5~2重量部(但し、(A)、(B)及び(C)の合計を100重量部とする。)含む組成物である。
本発明の自動二輪車用リアグリップは、前記本発明に係るプロピレン系重合体組成物からなる、表面露出箇所の厚さが4mm以上20mm未満、好ましくは5~17mmの範囲にある成形体である。
本発明の自動二輪車用リアグリップは自動二輪車用リアグリップ用金型を備えた射出成型機を用いて成形し得る。前記本発明に係るプロピレン系重合体組成物を用いて自動二輪車用リアグリップ用金型内に、射出成形する場合は、前記プロピレン系重合体組成物を溶融、好ましくは180~250℃の範囲で溶融して射出される。
また、110℃以上~150℃未満の温度範囲に保持した自動二輪車用リアグリップ用金型に射出成形した後、取り出し可能な温度まで金型を冷却しても構わない。
(1)メルトフローレート(MFR)
MFRは、ISO 1133に従って、230℃、荷重2.16kgで測定した。
(2)引張破壊強度(TS:MPa)
TSは、ISO 527に従って測定した。
(3)曲げ弾性率(FM:MPa)
FMは、ISO 178に従って測定した。
(4)十点平均表面粗さ(Rz)
超深度形状測定顕微鏡(株式会社キーエンス社製、商標;VK-8500)を用いて、成形体表面を画像処理し、得られた画像にレーザを照射することにより、Rzを測定した。
プロピレン系重合体(A)として、MFRが10g/10分のプロピレン単独重合体を58重量部、エチレン・α-オレフィンランダム共重合体(D)として、密度=900kg/m3、エチレン含量=80モル%、及びMFR=6.5g/10分のエチレン・1-ブテンランダム共重合体を18重量部、変性プロピレン系重合体(C)として、[η]=0.8dl/g、及び無水マレイン酸グラフト量=0.5重量%の無水マレイン酸変性ポリプロピレンを1重量部、及びフェノール系酸化防止剤(ベンゼンプロパノイックアシッド,3,5-ビス(1,1-ジメチルエチル)-4-ヒドロキシ,2,2-ビス[[3-[3,5-ビス(1,1-ジメチルエチル)-4-ヒドロキシフェニル]-1-オキソプロポキシ]メチル]-1,3-プロパンジルエステル)0.1重量部、イオウ系酸化防止剤(ジステアリルチオジプロピオネート)0.1重量部をタンブラーミキサーで均一に混合した後、230℃に設定した同方向二軸混練機(日本製鋼所(株)製 TEX-30α)に重量式フィーダに供給し、ガラス繊維(B)として、長さ3mm、径13μmのガラス繊維41重量部を重量式フィーダにて供給し、加熱混合してプロピレン系重合体組成物を得た。得られたプロピレン系重合体組成物のMFRは3g/10分、TSは74MPa、及びFMは6500MPaであった。
プロピレン系重合体(A)の量を52重量部、及びガラス繊維(B)の量を47重量部にする以外は製造例1と同様にしてプロピレン系重合体組成物を得た。得られたプロピレン系重合体組成物のMFRは3g/10分、TSは80MPa、及びFMは7700MPaであった。
製造例1で得たプロピレン系重合体組成物を射出成形機(東芝機械(株)製 EC100)を用いて、加熱温度240℃、冷却温度40℃の条件で射出成形し、厚さ4mmの試験片を成形し、その性状を測定した。結果を表1に示す。
厚さ2mmの試験片を成形する以外は、実施例1と同様にして、試験片を得た。結果を表1に示す。
厚さ3mmの試験片を成形する以外は、実施例1と同様にして、試験片を得た。結果を表1に示す。
製造例2で得たプロピレン系重合体組成物を用いて、実施例1と同様にして厚さが4mmの成形しその性状を測定した。結果を表1に示す。
製造例1で得たプロピレン系重合体組成物を射出成形機(株式会社名機製作所製 NADEM8500)用いて、加熱温度220℃、冷却温度55℃の条件で射出成形し、図3に示したような形状を示す自動二輪車用リアグリップを成形した。
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Claims (4)
- MFRが1~20g/10分の範囲にあるプロピレン系重合体(A)52~74.5重量部、ガラス繊維(B)25~45重量部、及び変性プロピレン系重合体(C)0.5~3重量部(但し、(A)、(B)及び(C)の合計を100重量部とする。)を含むプロピレン系重合体組成物からなり、表面露出箇所の厚さが4mm以上20mm未満の範囲にあることを特徴とする自動二輪車用リアグリップ。
- 前記プロピレン系重合体組成物がさらに、エチレン・α-オレフィンランダム共重合体を(D)を、(A)、(B)及び(C)の合計量100重量部に対して、10~25重量部含むことを特徴とする請求項1記載の自動二輪車用リアグリップ。
- 請求項1または2に記載のプロピレン系重合体組成物を、110℃以上~150℃未満の温度範囲に保持した金型に射出成形することにより得られる、請求項1または2に記載の自動二輪車用リアグリップ。
- 自動二輪車用リアグリップの少なくとも一部の表面が塗装されてなる請求項1~3のいずれか1項に記載の自動二輪車用リアグリップ。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018203297A (ja) * | 2017-05-31 | 2018-12-27 | 株式会社プライムポリマー | 滅菌容器 |
WO2020091051A1 (ja) | 2018-11-02 | 2020-05-07 | 株式会社プライムポリマー | 長繊維強化プロピレン系樹脂組成物および長繊維強化成形体 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002020560A (ja) * | 2000-07-10 | 2002-01-23 | Grand Polymer Co Ltd | 無機フィラー強化ポリプロピレン樹脂組成物 |
JP2003266536A (ja) * | 2002-03-12 | 2003-09-24 | Sumitomo Chem Co Ltd | 繊維強化樹脂成形体の製造方法および繊維強化樹脂成形体 |
JP2010106263A (ja) * | 2008-09-30 | 2010-05-13 | Mitsui Chemicals Inc | 長繊維強化熱可塑性樹脂粒子 |
JP2013136345A (ja) * | 2011-12-28 | 2013-07-11 | Yamaha Motor Co Ltd | 自動二輪車 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06239274A (ja) * | 1993-02-12 | 1994-08-30 | Suzuki Motor Corp | リアフェンダとリアグリップとの取付構造 |
EP2402392B1 (en) * | 2004-11-25 | 2013-09-18 | Mitsui Chemicals, Inc. | Propylene resin composition and use thereof |
JP5358870B2 (ja) * | 2005-07-07 | 2013-12-04 | 三菱化学株式会社 | 水性樹脂分散体及びその製造方法、塗料、積層体及びその製造方法 |
JP2009144064A (ja) * | 2007-12-14 | 2009-07-02 | Sumitomo Chemical Co Ltd | 成形体の製造方法 |
JP2009196236A (ja) * | 2008-02-22 | 2009-09-03 | Sumitomo Chemical Co Ltd | 熱可塑性樹脂成形体の製造方法及び熱可塑性樹脂成形体 |
JP2009275081A (ja) * | 2008-05-13 | 2009-11-26 | Japan Polypropylene Corp | プロピレン系樹脂組成物 |
JP5532712B2 (ja) * | 2009-07-10 | 2014-06-25 | 三菱化学株式会社 | 樹脂分散体組成物、及びそれを含有してなるプライマー、塗料、及びその積層体 |
JP2011046758A (ja) * | 2009-08-25 | 2011-03-10 | Japan Polypropylene Corp | 熱可塑性樹脂組成物及びその成形体 |
JP5584594B2 (ja) * | 2010-11-15 | 2014-09-03 | 株式会社プライムポリマー | ポリプロピレン系樹脂組成物 |
JP2012167250A (ja) * | 2011-01-28 | 2012-09-06 | Toray Ind Inc | 成形品 |
JP5938958B2 (ja) * | 2011-03-15 | 2016-06-22 | 住友化学株式会社 | 樹脂組成物及びこれからなる放熱部品 |
JP5703202B2 (ja) * | 2011-12-05 | 2015-04-15 | 日本ポリプロ株式会社 | 射出成形用ポリプロピレン系樹脂組成物及びそれからなる射出成形体 |
JP2013053316A (ja) * | 2012-12-03 | 2013-03-21 | Mitsubishi Engineering Plastics Corp | レーザー溶着用熱可塑性樹脂組成物、成形品及び成形品の製造方法 |
-
2014
- 2014-07-02 WO PCT/JP2014/067617 patent/WO2015002217A1/ja active Application Filing
- 2014-07-02 JP JP2015525249A patent/JP6378678B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002020560A (ja) * | 2000-07-10 | 2002-01-23 | Grand Polymer Co Ltd | 無機フィラー強化ポリプロピレン樹脂組成物 |
JP2003266536A (ja) * | 2002-03-12 | 2003-09-24 | Sumitomo Chem Co Ltd | 繊維強化樹脂成形体の製造方法および繊維強化樹脂成形体 |
JP2010106263A (ja) * | 2008-09-30 | 2010-05-13 | Mitsui Chemicals Inc | 長繊維強化熱可塑性樹脂粒子 |
JP2013136345A (ja) * | 2011-12-28 | 2013-07-11 | Yamaha Motor Co Ltd | 自動二輪車 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018203297A (ja) * | 2017-05-31 | 2018-12-27 | 株式会社プライムポリマー | 滅菌容器 |
JP7055598B2 (ja) | 2017-05-31 | 2022-04-18 | 株式会社プライムポリマー | 滅菌容器 |
WO2020091051A1 (ja) | 2018-11-02 | 2020-05-07 | 株式会社プライムポリマー | 長繊維強化プロピレン系樹脂組成物および長繊維強化成形体 |
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