WO2017115416A1 - 衝撃緩衝材、靴底用部材、靴、及び、スポーツ用保護具 - Google Patents
衝撃緩衝材、靴底用部材、靴、及び、スポーツ用保護具 Download PDFInfo
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- WO2017115416A1 WO2017115416A1 PCT/JP2015/086507 JP2015086507W WO2017115416A1 WO 2017115416 A1 WO2017115416 A1 WO 2017115416A1 JP 2015086507 W JP2015086507 W JP 2015086507W WO 2017115416 A1 WO2017115416 A1 WO 2017115416A1
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- foam
- phase
- shoe
- absorbing material
- cross
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
- A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid materials
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/023—Soles with several layers of the same material
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/04—Plastics, rubber or vulcanised fibre
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/02—Soles; Sole-and-heel integral units characterised by the material
- A43B13/12—Soles with several layers of different materials
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/18—Resilient soles
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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
-
- 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
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- 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
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/22—Thermoplastic resins
-
- 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
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/26—Elastomers
Definitions
- the present invention relates to an impact cushioning material, a member for a shoe sole, shoes, and a protective equipment for sports. More specifically, the shoe sole member and the shoe, for example, a shoe sole member used as an inner sole, a sock liner, a midsole, an outer sole, and the shoe including such a shoe sole member. About. More specifically, the present invention relates to a sport protector used as, for example, a glove, a protector, an exercise mat or the like.
- Sports shoes used in various competitions and the like are composed of many members.
- the shoe is composed of members for a sole such as an inner sole, a sock liner, a midsole, and an outer sole. .
- a conventional shoe sole member is formed of a foam obtained by crosslinking and foaming a blend of rubber or ethylene-butene copolymer (EBM) with ethylene-vinyl acetate copolymer (EVA) and / or polyethylene.
- EBM ethylene-butene copolymer
- EVA ethylene-vinyl acetate copolymer
- Patent Document 1 those formed from a crosslinked foamed ethylene-vinyl acetate copolymer are widely used (see Patent Document 1 below).
- the member for the sole is excellent in impact resistance.
- a thin member may be desired for the sole member depending on the use of the shoe.
- the foaming ratio is lowered, the weight of the shoe sole member increases. There is.
- shoe sole member not only the shoe sole member, but also an impact cushioning material used for a sports protector, etc., it may be desirable to have excellent impact cushioning properties even if the thickness is reduced.
- the present invention provides an impact cushioning material that is excellent in impact cushioning even if it is thinned.
- a shoe sole member having the impact cushioning material, and the impact cushioning material are provided. It is an object of the present invention to provide a sporting protective equipment having a comfort, and to provide a shoe having comfort even when the sole member is thinned.
- the present inventor has intensively studied, and regarding the content ratio of the phase (S phase) in which the spin-spin relaxation time is observed short in the measurement by the pulse method NMR such as the crystal phase, the pulse method NMR at 20 ° C. It has been found that the above problem can be solved by using a crosslinked foam having a large value obtained by subtracting the S phase content obtained by pulsed NMR measurement at 40 ° C. from the S phase content obtained by measurement. .
- the shock absorbing material according to the present invention is a shock absorbing material that is partially or wholly formed of a crosslinked foam formed by crosslinking and foaming a polymer composition
- the cross-linked foam has a value obtained by subtracting the S phase content obtained by pulsed NMR measurement at 40 ° C. from the S phase content obtained by pulsed NMR measurement at 20 ° C. to be 0.10 or more. .
- the cross-linked foam has a value obtained by subtracting the S phase content obtained by pulsed NMR measurement at 40 ° C. from the S phase content obtained by pulsed NMR measurement at 20 ° C. Greater than .15.
- the polymer composition contains a styrenic thermoplastic elastomer.
- the polymer composition contains an amide-based thermoplastic elastomer.
- the cross-linked foam has a negative acceleration applied to the weight when it is allowed to collide with the cross-linked foam by free-falling a 10 kg weight from a position 50 mm above the cross-linked foam at 23 ° C. Is preferably 20 G or less at a thickness of 10 mm.
- the member for the sole according to the present invention has the above-mentioned shock absorbing material.
- the shoe according to the present invention includes the above-mentioned member for the sole.
- the sports equipment according to the present invention has the above-mentioned shock absorbing material.
- an impact cushioning material that is excellent in impact cushioning even if it is thinned.
- a member for a shoe sole having the impact cushioning material, and a sports protector having the impact cushioning material are provided. Furthermore, it is possible to provide a shoe having comfort even if the sole member is thinned.
- FIG. 1 The schematic side view which showed the one aspect
- FIG. 1 The figure which shows the result of having performed the pulse-method NMR measurement about the crosslinked foam of the comparative example 3.
- FIG. 1 The schematic side view which showed the one aspect
- FIG. 1 shows a shoe formed using the shoe sole member of the present embodiment.
- the shoe 1 includes an upper material 2 and shoe sole members 3 and 4.
- the shoe 1 includes a midsole 3 and an outer sole 4 as the sole member.
- the shock absorbing material of the present embodiment is formed by a crosslinked foam formed by crosslinking and foaming a polymer composition.
- the crosslinked foam of the present embodiment has an S phase content ratio (F S20 ) determined by pulse method NMR measurement at 40 ° C. from an S phase content ratio (F S20 ) determined by pulse method NMR measurement at 20 ° C.
- the value obtained by subtracting S40 ) is 0.10 or more.
- the crosslinked foam of the present embodiment satisfies the following relational expression.
- the crosslinked foam of the present embodiment has an S phase content ratio (F S20 ) determined by pulse method NMR measurement at 40 ° C. from an S phase content ratio (F S20 ) determined by pulse method NMR measurement at 20 ° C.
- the value obtained by subtracting S40 ) is preferably larger than 0.15.
- the crosslinked foam of this embodiment preferably satisfies the following relational expression. F S20 -F S40 > 0.15 (2)
- the shoe sole member of the present embodiment preferably has an F S20 of 0.15 to 0.80. Further, the shoe sole member of the present embodiment preferably has a FS40 of 0.05 to 0.60.
- the phase in which the spin-spin relaxation time is less than 0.02 ms (S phase), the phase in which the spin-spin relaxation time is 0.02 ms or more and less than 0.1 ms (M phase), spin- Dividing into phases (L phase) having a spin relaxation time of 0.1 ms or more, the content ratio of each phase is determined.
- the spin-spin relaxation time can be determined, for example, by performing measurement by the Solid Echo method using a pulse method NMR measurement apparatus manufactured by Bruker Optics, model name “minispec mq20”.
- the Weibull coefficient of the i component is W i.
- Such a method for obtaining the relaxation time is disclosed in S. Yamazaki et al Polymer 48 4793 (2007) and the like.
- the spin-spin relaxation time (T 2S , T 2M , T 2L ) and the content ratio of each phase (F S , F M , F L ) may vary greatly before and after crosslinking. No. Therefore, if a pulsed NMR measurement is carried out in a non-crosslinked state to investigate a polymer that satisfies the relationship shown in the above inequality, and the polymer is employed as a polymer in a polymer composition for forming a crosslinked foam, A crosslinked foam satisfying the relationship shown in the above inequality can be obtained with a high probability.
- the spin-spin relaxation time and the content ratio of each phase do not vary greatly depending on whether or not foaming occurs. Therefore, if it is necessary to more reliably predict whether or not a crosslinked foam satisfying the relationship shown in the above inequality can be obtained, a non-foamed crosslinked sample with a polymer is prepared, On the other hand, the prediction may be performed by performing pulsed NMR measurement.
- the crystalline phase is mainly observed as the S phase in the pulsed NMR measurement
- the amorphous phase is mainly the M phase.
- L phase observed as L phase.
- the hard segment portion is mainly observed as an S phase in pulsed NMR measurement
- the soft segment portion is mainly observed as an M phase or an L phase. Is done.
- the shock-absorbing material has a larger [F S20 -F S40 ] of the cross-linked foam, it tends to be excellent in impact resistance while being thinned. That is, the shock-absorbing material according to the present embodiment is excellent in impact resistance while being thinned because the crosslinked foam satisfies the following relational expression.
- F S20 -F S40 ⁇ 0.10 (1)
- the crosslinked foam has a negative acceleration applied to the weight when it is allowed to collide with the crosslinked foam by dropping a 10 kg weight freely from a position 50 mm above the crosslinked foam at 23 ° C. Is preferably 20 G or less at a thickness of 10 mm.
- the maximum value (A10) of this negative acceleration can be measured as follows. First, a cross-linked foam of 50 mm (vertical) ⁇ 50 mm (horizontal) ⁇ 10 mm (thickness) is placed on a horizontal base (material: iron).
- the cross-linked foam is obtained by freely dropping a weight (mass: 10 kg, material: iron, indenter tip portion shape: diameter 50 mm cylinder, indenter tip surface shape: diameter 50 mm circle) from a position 50 mm above the cross-linked foam.
- the maximum value (A10) of the negative acceleration applied to the weight when colliding with the body is measured.
- the specific gravity of the crosslinked foam is preferably 0.10 to 0.40.
- the specific gravity of the crosslinked foam means a value measured under a temperature condition of 23 ° C. according to JIS K7112 Method A “submersion method”.
- the C hardness of the crosslinked foam is preferably 70 or less, more preferably 60 or less, and 55 or less. It is particularly preferred.
- the C hardness of the crosslinked foam is preferably 10 or more.
- the C hardness of the cross-linked foam means a value 5 seconds after pressurization when measured with an Asker rubber hardness meter C type manufactured by Kobunshi Keiki Co., Ltd. at 23 ° C.
- the C hardness is measured by, for example, preparing a plate-shaped measurement sample having a thickness of 10 mm or more by removing the skin portion from a cross-linked foam having a predetermined shape by in-mold foam molding or the like. It can obtain
- the crosslinked foam is preferably a crosslinked foam that satisfies the following formula. E100 / E1 ⁇ 2.0
- the cross-linked foam has the advantage that it becomes highly rigid when an impact occurs, and as a result, excessive deformation is suppressed.
- the above equation is obtained by measuring the complex elastic modulus of the crosslinked foam by dynamic viscoelasticity measurement (temperature: 23 ° C., strain: 0.025%, temperature increase rate: 2 ° C./min). It is. “E100” in the above formula represents a complex elastic modulus at a frequency of 100 Hz. Further, the above formula “E1” represents the complex elastic modulus at a frequency of 1 Hz.
- the complex elastic modulus means a value measured according to JIS K7244-4: 1999 “Plastics—Testing method of dynamic mechanical properties—Part 4: Tensile vibration—Non-resonance method”.
- the polymer as the main component of the polymer composition is not particularly limited in the present embodiment, and is a conventional shock-absorbing material formation (for example, a conventional shoe sole member or sports protection device). It can be the same as the polymer used in the above.
- polyethylene for example, linear low density polyethylene (LLDPE), high density polyethylene (HDPE)
- polypropylene for example, linear low density polyethylene (LLDPE), high density polyethylene (HDPE)
- polypropylene ethylene-propylene copolymer, propylene-1- Hexene copolymer, propylene-4-methyl-1-pentene copolymer, propylene-1-butene copolymer, ethylene-1-hexene copolymer, ethylene-4-methyl-pentene copolymer, ethylene-butene Copolymer (EBM), 1-butene-1-hexene copolymer, 1-butene-4-methyl-pentene, ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-ethyl methacrylate Copolymer, ethylene-butyl methacrylate copolymer, ethylene-methyl acrylate copolymer Polymer, ethylene-eth
- the polymer may be urethane polymer such as ester polyurethane or ether polyurethane; styrene-ethylene-butylene copolymer (SEB), styrene-butadiene-styrene copolymer ( SBS), hydrogenated product of SBS (styrene-ethylene-butylene-styrene copolymer (SEBS)), styrene-isoprene-styrene copolymer (SIS), hydrogenated product of SIS (styrene-ethylene-propylene-styrene copolymer) Polymer (SEPS)), styrene-isobutylene-styrene copolymer (SIBS), styrene-butadiene-styrene-butadiene (SBSB), styrene-butadiene-styrene-butadiene-styrene-butadiene
- polymers that can be used as the polymer in the present embodiment include, for example, fluorine-based polymers such as fluororesin and fluororubber; polyamide-based materials such as polyamide 6, polyamide 11, polyamide 12, polyamide 6, 6, and polyamide 610.
- Polyamide polymers such as resins and polyamide elastomers; polyester resins such as polyethylene terephthalate and polybutylene terephthalate; polyvinyl chloride resins; acrylic resins such as polymethyl methacrylate; silicone elastomers; butadiene rubber (BR); isoprene rubber (IR); chloroprene (CR); natural rubber (NR); styrene butadiene rubber (SBR); acrylonitrile butadiene rubber (NBR); butyl rubber (IIR).
- BR butadiene rubber
- IR isoprene rubber
- CR chloroprene
- NR natural rubber
- SBR styrene butadiene rubber
- NBR acrylonitrile butadiene rubber
- IIR butyl rubber
- the said polymer composition contains a styrene-type thermoplastic elastomer (TPS).
- TPS styrene-type thermoplastic elastomer
- the styrenic thermoplastic elastomer (TPS) is preferably contained in an amount of 10 to 100% by mass, particularly 20 to 70% by mass. preferable.
- the polymer composition preferably contains an amide-based thermoplastic elastomer (TPA) from the viewpoint of suppressing molding shrinkage.
- TPA polyamide-based thermoplastic elastomer
- the polymer preferably contains 2-30% by mass of an amide-based thermoplastic elastomer (TPA), and particularly preferably contains 4-20% by mass. preferable.
- the molding shrinkage rate is preferably 4.0% or less.
- Mold shrinkage means the mold shrinkage described in the examples.
- the method of crosslinking and foaming such a polymer is not particularly limited, and a crosslinking agent and a foaming agent that are used for forming a general crosslinked foam can also be used in this embodiment.
- a crosslinking agent and a foaming agent that are used for forming a general crosslinked foam can also be used in this embodiment.
- the crosslinking agent for example, organic peroxides, maleimide crosslinking agents, sulfur, phenolic crosslinking agents, oximes, polyamines and the like can be adopted, and among them, organic peroxides are preferable.
- it is also possible to form a crosslinked structure using an electron beam and when carrying out an electron beam crosslinking, an electron beam crosslinking agent can also be used.
- organic peroxide examples include dicumyl peroxide, di-t-butyl peroxide, 2,5-dimethyl-2,5-di- (t-butylperoxy) hexane, 2,5-dimethyl-2,5.
- the organic peroxide is used for forming a crosslinked foam at a ratio of 0.01 parts by mass or more and 10 parts by mass or less with respect to 100 parts by mass in total of the polymers contained in the polymer composition of the present embodiment. It is preferable.
- the said crosslinked foam can adjust a crosslinking density by using together a crosslinking adjuvant with the said crosslinking agent.
- the crosslinking aid include divinylbenzene, trimethylolpropane trimethacrylate, 1,6-hexanediol methacrylate, 1,9-nonanediol dimethacrylate, 1,10-decanediol dimethacrylate, trimellitic acid triallyl ester.
- the crosslinked foam may be formed by blending inorganic particles having high surface energy such as clay, talc, silica, and carbon black into the polymer composition, and forming pseudo-crosslinking points in the polymer composition by the inorganic particles. Good.
- the method for foaming the polymer is not particularly limited, and foam molding can be performed by a chemical foaming method using an organic or inorganic chemical foaming agent or a physical foaming method using a physical foaming agent.
- foaming agent include azodicarbonamide (ADCA), 1,1′-azobis (1-acetoxy-1-phenylethane), dimethyl-2,2′-azobisbutyrate, dimethyl-2,2 ′.
- foaming agent examples include bicarbonates such as sodium bicarbonate and ammonium bicarbonate, carbonates such as sodium carbonate and ammonium carbonate; nitrites such as ammonium nitrite, and inorganic pyrolytic foaming agents such as hydrogen compounds.
- bicarbonates such as sodium bicarbonate and ammonium bicarbonate
- carbonates such as sodium carbonate and ammonium carbonate
- nitrites such as ammonium nitrite
- inorganic pyrolytic foaming agents such as hydrogen compounds.
- the 1 type (s) or 2 or more types selected can be employ
- organic foaming agents such as various aliphatic hydrocarbons such as methanol, ethanol, propane, butane, pentane and hexane, and inorganic foaming agents such as air, carbon dioxide, nitrogen, argon and water are also used as the crosslinked foam. It can be used as a foaming agent when forming.
- additives to be contained in the crosslinked foam include dispersants, processing aids, anti-mold agents, flame retardants, pigments, mold release agents, antistatic agents, antibacterial agents, and deodorants.
- the method for forming such a crosslinked foam is not particularly limited, and a conventionally known method can be employed.
- the shoe sole member according to the present embodiment has the shock absorbing material according to the present embodiment. Further, the shoe according to the present embodiment includes the shoe sole member according to the present embodiment.
- the shock-absorbing material according to the present embodiment may be used in a sports protector that protects a user.
- the sports protector according to the present embodiment includes the shock absorbing material according to the present embodiment.
- the sport protector include exercise mats provided on walls and floors to protect the user, gloves and protectors used by the user.
- the shock absorbing material according to the present embodiment is not limited to the exercise mat, and may be used for a mat used for other purposes.
- the shock absorbing material according to the present embodiment may be used as a core material or a base provided inside a wall or a floor for the purpose of buffering a shock during exercise.
- the impact cushioning material, the shoe sole member, the shoe, and the sports protector according to the present invention are not limited to the above embodiment. Further, the shock absorbing material, the shoe sole member, the shoe, and the sports protector according to the present invention are not limited to the above-described effects. Various changes can be made to the shock-absorbing material, the shoe sole member, the shoe, and the sports equipment according to the present invention without departing from the gist of the present invention.
- the shock-absorbing material of the present invention may be formed of only the above-mentioned crosslinked foam, or other materials such as fabrics and resin sheets may be used in combination as long as the effects of the present invention are not impaired. May be formed.
- TPS-A Styrenic thermoplastic elastomer having hard segment and soft segment
- TPO-B three types of olefinic thermoplastic resins
- EVA-A ethylene-vinyl acetate copolymer resin
- T 2S spin-spin relaxation time
- Preliminary study 2 The styrene-based thermoplastic elastomer (TPS-A) of Preliminary Study 1 and the first olefin-based thermoplastic resin (TPO-A) in the mass ratio (“TPS-A” / “TPO-A”)
- TPS-A styrene-based thermoplastic elastomer
- TPO-A first olefin-based thermoplastic resin
- a cross-linked foam was prepared from a mixed resin blended at a ratio of “80/20”, “70/30”, and “60/40”. Then, the crosslinked foamed product was measured by pulse method NMR, spin at 25 ° C. - spin relaxation time (T 2S, T 2M, T 2L) and phase (S-phase, M-phase, L phase), the amount of the (F S , F M , F L ).
- weighted average values were similarly calculated for other predicted values of the spin-spin relaxation time (T 2S , T 2M ) and the ratio of each phase (F S , F M , F L ).
- the predicted values based on this weighted average and the values obtained by actually measuring the crosslinked foam are shown in Table 2 below.
- styrene in which the spin-spin relaxation time (T 2S , T 2M , T 2L ) and the ratio of each phase (F S , F M , F L ) are values shown in Table 3 below in a non-crosslinked state.
- TPS-B thermoplastic elastomer
- TPO-A olefinic thermoplastic resin
- styrene thermoplastic elastomer (TPS1, TPS2, TPS3, TPS4), an olefin resin (PE1, PE2, PE3, PE4), and an amide thermoplastic elastomer (TPA) were prepared.
- stearic acid, zinc oxide, chemical foaming agent, cross-linking agent, and cross-linking aid were prepared.
- the specific gravity of the obtained crosslinked foam was changed by changing the compounding ratio of a chemical foaming agent and zinc oxide.
- the chemical foaming agent is in the range of 0.5 to 10 parts by mass and the zinc oxide is in the range of 0.25 to 5 parts by mass with respect to 100 parts by mass of the polymer. I made it. Moreover, the polymer of the reference example of a mixing
- hardness there are those with “A”, “C”, “D” before the numerical value, but “A” before the numerical value means A hardness. What is described as “C” before the numerical value means C hardness, and what is described as “D” before the numerical value means D hardness.
- the A hardness means an instantaneous value when a spring hardness test according to JIS K7312 type A is performed at 23 ° C.
- the D hardness means an instantaneous value when a spring hardness test according to JIS K7312 type D is performed at 23 ° C.
- the cross-linked foams of the Examples had smaller values of A10 than the cross-linked foams of Comparative Examples having the same specific gravity and hardness.
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Abstract
Description
また、靴底用部材は、靴の用途等によって薄肉なものが望まれることがある。
薄肉化させながらも耐衝撃性を満足させるには、発泡倍率を低くすること(比重を小さくすること)が考えられるが、発泡倍率を低下させると靴底用部材の重量が増してしまうという問題がある。
従って、薄肉化しても快適性に優れる架橋発泡体が望まれうる。
前記架橋発泡体は、20℃でのパルス法NMR測定で求められるS相の含有割合から40℃でのパルス法NMR測定で求められるS相の含有割合を引いた値が0.10以上である。
図1は、本実施形態の靴底用部材を用いて形成される靴を示したものである。
該靴1は、アッパー材2と靴底用部材3,4とを有している。
該靴1は、前記靴底用部材として、ミッドソール3、及び、アウターソール4を有している。
また、本実施形態の架橋発泡体は、20℃でのパルス法NMR測定で求められるS相の含有割合(FS20)から40℃でのパルス法NMR測定で求められるS相の含有割合(FS40)を引いた値が0.10以上である。
言いかえれば、本実施形態の架橋発泡体は、以下の関係式を満たす。
FS20 - FS40 ≧ 0.10 (1)
言いかえれば、本実施形態の架橋発泡体は、以下の関係式を満たすことが好ましい。
FS20 - FS40 > 0.15 (2)
スピン-スピン緩和時間は、例えば、ブルカーオプティクス社製のパルス法NMR測定装置、型名「minispec mq20」を用い、Solid Echo法による測定を実施することなどで求めることができる。
なお、下記式中の「W」はワイブル係数を表す。
例えば、ワイブル係数Wiは、WS=2、WM=1、WL=1を用いることができる。
このような緩和時間の求め方については、S.Yamasaki et al Polymer48 4793 (2007)などに開示されている。
そのため、非架橋な状態でパルス法NMR測定を実施して前記の不等式に示した関係を満足するポリマーを調査し、該ポリマーを架橋発泡体を形成させるためのポリマー組成物のポリマーとして採用すれば、前記の不等式に示した関係を満足する架橋発泡体を高い確率で得ることができる。
そのため前記の不等式に示した関係を満足する架橋発泡体が得られるか否かをより確実に予測することが必要な場合であれば、ポリマーによる非発泡な架橋体試料を作製し、該試料に対してパルス法NMR測定を実施して前記予測を行えば良い。
また、ハードセグメントとソフトセグメントとを有するブロック共重合体であれば、主としてハードセグメント部分がパルス法NMR測定においてS相となって観測され、主としてソフトセグメント部分がM相やL相となって観測される。
即ち、架橋発泡体のポリマーをポリエチレンとするような場合には、必ずしも、用いるポリエチレンのパルス法NMR測定を予め実施しなくても、他のポリエチレンについて実施したパルス法NMR測定の結果から架橋発泡体のスピン-スピン緩和時間や各相の含有割合を予測することができる。
すなわち、本実施形態に係る衝撃緩衝材は、架橋発泡体が以下の関係式を満たすことで、薄肉化させながらも耐衝撃性に優れたものとなる。
FS20 - FS40 ≧ 0.10 (1)
この負の加速度の最大値(A10)は以下のようにして測定することができる。
まず、水平な台(材質:鉄)の上に50mm(縦)×50mm(横)×10mm(厚み)の架橋発泡体を載置する。
そして、23℃において架橋発泡体の上方50mmの位置から重り(質量:10kg、材質:鉄、圧子先端部分形状:直径50mm円柱、圧子先端面形状:直径50mm円)を自由落下させることにより架橋発泡体に衝突させた際の重りに加わる負の加速度の最大値(A10)を測定する。
なお、より詳しい測定方法は、「スポーツ産業学研究,Vol.9,No.1(1999),1~7. 西脇,奈迫」や「ジョイント・シンポジウムジョイント・シンポジウム2009 スポーツ工学シンポジウム シンポジウム:ヒューマン・ダイナミクス(2009)457-460. 立石,原野,森,西脇」に記載されている。
なお、架橋発泡体の比重とは、JIS K7112のA法「水中置換法」によって、23℃の温度条件下において測定される値を意味する。
ただし、靴底用部材は、過度に低硬度な架橋発泡体で形成されると、当該靴底用部材を備えたシューズの履き心地を低下させるおそれを有する。
従って、前記架橋発泡体のC硬度は、10以上であることが好ましい。
なお、架橋発泡体のC硬度とは、23℃において高分子計器株式会社製アスカーゴム硬度計C型)によって測定した際の,加圧後5秒後の値を意味する。
より具体的には、C硬度は、例えば、型内発泡成形などによって所定形状とされた架橋発泡体から表皮部分を除去して10mm以上の厚みを有する板状の測定試料を作製し、該測定試料に対して上述の硬度計を用いて測定することで求めることができる。
E100/E1≧2.0
前記架橋発泡体は、上記式の条件を満足することにより、衝撃が生じた際に高剛性化し、その結果、過度な変形が抑制されるという利点を有する。
ここで、上記式は、動的粘弾性測定(温度:23℃、ひずみ:0.025%、昇温速度:2℃/min)で架橋発泡体の複素弾性率を測定することにより求められるものである。そして、上記式の「E100」は、周波数100Hzでの複素弾性率を表している。また、上記式「E1」は、周波数1Hzでの複素弾性率を表している。
なお、複素弾性率は、JIS K7244-4:1999「プラスチック-動的機械特性の試験方法-第4部:引張振動-非共振法」に従って測定したものを意味する。
また、前記ポリマーとしてその他には、エステル系熱可塑性エラストマー(TPEE)、アミド系熱可塑性エラストマー(TPA)等も採用することもできる。
前記ポリマーは、スチレン系熱可塑性エラストマー(TPS)を含有する場合には、スチレン系熱可塑性エラストマー(TPS)を、10~100質量%含有することが好ましく、20~70質量%含有することが特に好ましい。
前記ポリマーは、ポリアミド系熱可塑性エラストマー(TPA)を含有する場合には、アミド系熱可塑性エラストマー(TPA)を、2~30質量%含有することが好ましく、4~20質量%含有することが特に好ましい。
成形収縮率は、実施例に記載の成形収縮率を意味する。
該架橋剤としては、例えば、有機過酸化物、マレイミド系架橋剤、硫黄、フェノール系架橋剤、オキシム類、ポリアミン等を採用することが可能であるが、なかでも有機過酸化物が好ましい。また、電子線を用いて架橋構造を形成させることも可能であり、電子線架橋を実施する場合には、電子線架橋剤を用いることもできる。
この架橋助剤としては、例えば、ジビニルベンゼン、トリメチロールプロパントリメタクリレート、1,6-ヘキサンジオールメタクリレート、1,9-ノナンジオールジメタクリレート、1,10-デカンジオールジメタクリレート、トリメリット酸トリアリルエステル、トリアリルイソシアネート、ネオペンチルグリコールジメタクリレート、1,2,4-ベンゼントリカルボン酸トリアリルエステル、トリシクロデカンジメタクリレート、ポリエチレングリコールジアクリレート等から選択される1種又は2種以上を採用することができる。
前記発泡剤としては、例えば、アゾジカルボンアミド(ADCA)、1,1’-アゾビス(1-アセトキシ-1-フェニルエタン)、ジメチル-2,2’-アゾビスブチレート、ジメチル-2,2’-アゾビスイソブチレート、2,2’-アゾビス(2,4,4-トリメチルペンタン)、1,1’-アゾビス(シクロヘキサン-1-カルボニトリル)、2,2’-アゾビス[N-(2-カルボキシエチル)-2-メチル-プロピオンアミジン]等のアゾ化合物;N,N’-ジニトロソペンタメチレンテトラミン(DPT)等のニトロソ化合物;4,4’-オキシビス(ベンゼンスルホニルヒドラジド)、ジフェニルスルホン-3,3’-ジスルホニルヒドラジド等のヒドラジン誘導体;p-トルエンスルホニルセミカルバジド等のセミカルバジド化合物;トリヒドラジノトリアジンなどの有機系熱分解型発泡剤から選択される1種又は2種以上を採用することができる。
該スポーツ用保護具としては、壁や床に備えられて使用者を保護する運動用マット、使用者が装着して使用されるグローブやプロテクターが挙げられる。
さらに、本実施形態に係る衝撃緩衝材は、運動用マットに限らず、他の目的で用いられるマットに用いられてもよい。
また、本実施形態に係る衝撃緩衝材は、運動時の衝撃を緩衝する目的で、壁や床の内部に設けられる芯材や下地として用いられてもよい。
例えば、本発明の衝撃緩衝材は、上記のような架橋発泡体のみによって形成させてもよく、或いは、本発明の効果が損なわれない範囲内において布帛や樹脂シート等の他の素材を併用して形成させてもよい。
ハードセグメントとソフトセグメントとを有するスチレン系熱可塑性エラストマー(以下「TPS-A」ともいう)、3種類のオレフィン系熱可塑性樹脂(以下「TPO-A」、「TPO-B」、「TPO-C」ともいう)、及び、エチレン-酢酸ビニル共重合樹脂(以下「EVA-A」ともいう)を用意し、非架橋な状態でパルス法NMRを用いて25℃におけるスピン-スピン緩和時間(T2S、T2M、T2L)と各相(S相、M相、L相)の含有割合(FS、FM、FL)とを測定した。
また、これらのポリマーを使って作製した架橋発泡体についてもパルス法NMRでスピン-スピン緩和時間と各相の含有割合とを測定した。
結果を、下記表1に示す。
前記予備検討1のスチレン系熱可塑性エラストマー(TPS-A)と1番目のオレフィン系熱可塑性樹脂(TPO-A)とを質量比(「TPS-A」/「TPO-A」)で、それぞれ「80/20」、「70/30」、「60/40」となる割合でブレンドした混合樹脂で架橋発泡体を作製した。
そして、この架橋発泡体をパルス法NMRで測定し、25℃におけるスピン-スピン緩和時間(T2S、T2M、T2L)及び各相(S相、M相、L相)の割合(FS、FM、FL)を求めた。
また、この混合樹脂による架橋発泡体をパルス法NMRで測定した結果を予測すべく、表1の架橋発泡体のデータ(No.1-2、No.2-2)に基づいた加重平均値を計算により求めた。
即ち、「80/20」の架橋発泡体の「T2L」の値は、表1における「TPS-A」の「T2L」の値が「0.245」で、「TPO-A」の「T2L」の値が「0.220」であることから、「(0.245×80+0.220×20)/100」の式を計算して「0.240」となるものと予測した。
また、その他のスピン-スピン緩和時間(T2S、T2M)や各相の割合(FS、FM、FL)の予測値についても同様に加重平均値を計算により求めた。
この加重平均による予測値と架橋発泡体を実測した値とを下記表2に示す。
この架橋発泡体をパルス法NMRで測定し、25℃におけるスピン-スピン緩和時間(T2S、T2M、T2L)及び各相の割合(FS、FM、FL)を求めた。
また、この架橋発泡体をパルス法NMRで測定した結果を予測すべく、表1におけるオレフィン系熱可塑性樹脂(TPO-A)の非架橋な状態でのデータ(No.2-1)と、下記表3に示したスチレン系熱可塑性エラストマー(TPS-B)の非架橋な状態でのデータ(No.6-1)に基づいた加重平均値を計算により求めた。
この予測値を架橋発泡体の実測値とともに表3に併せて示す。
即ち、上記表に示された結果から、架橋発泡体が下記不等式を満たすか否かを事前に予測することが容易であることがわかる。
FS20 - FS40 ≧ 0.10 (1)
ポリマーとして、スチレン系熱可塑性エラストマー(TPS1、TPS2、TPS3、TPS4)、オレフィン系樹脂(PE1、PE2、PE3、PE4)、及び、アミド系熱可塑性エラストマー(TPA)を用意した。また、その他の成分として、ステアリン酸、酸化亜鉛、化学発泡剤、架橋剤、及び、架橋助剤を用意した。
そして、下記表5~7に示すような配合のポリマー100質量部、ステアリン酸1質量部、架橋剤0.5質量部、架橋助剤0.15質量部、酸化亜鉛、及び、化学発泡剤を混練することにより混練物を得、該混練物を165℃で15分加熱することにより1次発泡体を得た。
次に、1次発泡体を250mm(縦)(A)×250mm(横)(B)×12mm(高さ)に切り出し、切り出した1次発泡体を高さが8mmとなるように23℃下で圧縮させた。そして、圧縮させたまま160℃で5分間加熱した後、圧縮状態を維持したまま常温(23℃)になるまで冷却プレス成形することで2次発泡体を得た。
そして、この2次発泡体を、実施例及び比較例の架橋発泡体とした。
また、2次発泡体を得た後、室温下に2週間静置した後、2次発泡体の縦の長さ(A’)及び横の長さ(B’)を測定した。
そして、下記式により、成形収縮率(S)を算出した。
S = ((A-A’)×100/A +(B-B’)×100/B)/2
なお、化学発泡剤及び酸化亜鉛の配合割合を変えることにより、得られる架橋発泡体の比重を変化させた。実施例及び比較例においては、具体的には、ポリマー100質量部に対して、化学発泡剤を0.5~10質量部の範囲内にし、酸化亜鉛を0.25~5質量部の範囲内にした。
また、下記表4に示すような配合の参考例のポリマーを作製した。
なお、比較例1では架橋発泡体が得られなかった。
また、実施例及び比較例の架橋発泡体、並びに、参考例のポリマーのパルス法NMRによる測定を行った。この結果を表4~7に示す。また、図2は、実施例11の架橋発泡体についてパルス法NMR測定を行った結果を示す。さらに、図3には、比較例3の架橋発泡体についてパルス法NMR測定を行った結果を示す。
なお、硬度については、数値の前に“A”、“C”、“D”を記載しているものがあるが、数値の前に“A”と記載しているものは、A硬度を意味し、数値の前に“C”と記載しているものは、C硬度を意味し、数値の前に“D”と記載しているものは、D硬度を意味する。
A硬度とは、JIS K7312のタイプAによるスプリング硬さ試験を23℃において実施した際の瞬時値を意味する。また、D硬度とは、JIS K7312のタイプDによるスプリング硬さ試験を23℃において実施した際の瞬時値を意味する。
Claims (8)
- ポリマー組成物を架橋発泡させることで形成される架橋発泡体によって一部又は全部が形成されている衝撃緩衝材であって、
前記架橋発泡体は、20℃でのパルス法NMR測定で求められるS相の含有割合から40℃でのパルス法NMR測定で求められるS相の含有割合を引いた値が0.10以上である、衝撃緩衝材。 - 前記架橋発泡体は、20℃でのパルス法NMR測定で求められるS相の含有割合から40℃でのパルス法NMR測定で求められるS相の含有割合を引いた値が0.15よりも大きい、請求項1に記載の衝撃緩衝材。
- 前記ポリマー組成物がスチレン系熱可塑性エラストマーを含有する、請求項1又は2に記載の衝撃緩衝材。
- 前記ポリマー組成物がアミド系熱可塑性エラストマーを含有する、請求項1~3の何れか1項に記載の衝撃緩衝材。
- 前記架橋発泡体は、23℃において架橋発泡体の上方50mmの位置から10kgの重りを自由落下させることにより架橋発泡体に衝突させた際に、重りに加わる負の加速度の最大値が、10mmの厚みにおいて20G以下となる、請求項1~4の何れか1項に記載の衝撃緩衝材。
- 請求項1~5の何れか1項に記載の衝撃緩衝材を有する靴底用部材。
- 請求項6に記載の靴底用部材を備える靴。
- 請求項1~5の何れか1項に記載の衝撃緩衝材を有するスポーツ用保護具。
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11206406A (ja) | 1998-01-27 | 1999-08-03 | Asics Corp | 靴底用発泡体 |
JP2012052106A (ja) * | 2010-08-06 | 2012-03-15 | Sumitomo Chemical Co Ltd | 熱可塑性重合体製架橋発泡成形体の架橋密度の測定方法、および架橋発泡成形体 |
JP5719980B1 (ja) * | 2014-09-30 | 2015-05-20 | 株式会社アシックス | 靴底用部材、及び、靴 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5126140A (en) | 1974-08-23 | 1976-03-03 | Shinhachiro Nishizawa | Kisekaeningyoyono chakui akusesarii tono seizohoho |
JP2773943B2 (ja) * | 1990-01-18 | 1998-07-09 | 鐘紡株式会社 | 耐熱ポリウレタン弾性糸 |
BR9610784A (pt) * | 1995-09-29 | 1999-07-13 | Dow Chemical Co | Processo de cura duplo produzir um artigo espumado poliole finico e artigo espumado |
US6864315B1 (en) | 1999-03-16 | 2005-03-08 | Mitsui Chemicals, Inc. | Crosslinkable rubber compositions and use thereof |
CN1197907C (zh) | 1999-03-16 | 2005-04-20 | 三井化学株式会社 | 可交联的橡胶组合物及其应用 |
KR20030073086A (ko) * | 2002-03-08 | 2003-09-19 | 박호삼 | 숯성분을 함유하는 에틸렌비닐아세트산 합성수지 및 그제조 방법 |
JP4043992B2 (ja) * | 2003-04-25 | 2008-02-06 | 積水化成品工業株式会社 | スチレンブタジエン系軟質樹脂架橋発泡体の製造方法 |
TWI382918B (zh) * | 2005-04-19 | 2013-01-21 | Sulzer Chemtech Ag | 液態聚矽氧烷橡膠之發泡成形的聚合物元件之製法 |
JP5330691B2 (ja) | 2005-12-09 | 2013-10-30 | 三井化学株式会社 | 振動制御用材料 |
JP5142406B2 (ja) * | 2007-02-20 | 2013-02-13 | 旭化成ケミカルズ株式会社 | 衝撃吸収体組成物 |
US20130184362A1 (en) * | 2010-09-06 | 2013-07-18 | Hiroshi Yamauchi | Foamable resin composition and foam molded body |
JP6009917B2 (ja) * | 2012-03-30 | 2016-10-19 | 積水化学工業株式会社 | 電子機器用熱伝導性発泡体シート |
JP5690983B1 (ja) * | 2013-05-31 | 2015-03-25 | 株式会社アシックス | 靴底用部材、及び、靴 |
WO2014192145A1 (ja) | 2013-05-31 | 2014-12-04 | 株式会社アシックス | 靴底用部材 |
US10004292B2 (en) | 2014-04-09 | 2018-06-26 | Nike, Inc. | Selectively applied adhesive particulate on nonmetallic substrates |
-
2015
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11206406A (ja) | 1998-01-27 | 1999-08-03 | Asics Corp | 靴底用発泡体 |
JP2012052106A (ja) * | 2010-08-06 | 2012-03-15 | Sumitomo Chemical Co Ltd | 熱可塑性重合体製架橋発泡成形体の架橋密度の測定方法、および架橋発泡成形体 |
JP5719980B1 (ja) * | 2014-09-30 | 2015-05-20 | 株式会社アシックス | 靴底用部材、及び、靴 |
Non-Patent Citations (4)
Title |
---|
NISHIWAKI; NASAKO, JOURNAL OF SPORTS INDUSTRY, vol. 9, no. 1, 1999, pages 1 - 7 |
S.YAMASAKI ET AL., POLYMER, vol. 48, 2007, pages 4793 |
See also references of EP3399210A4 |
TATEISHI; HARANO; MORI; NISHIWAKI: "Joint symposium 2009", SPORTS ENGINEERING SYMPOSIUM, SYMPOSIUM: HUMAN DYNAMICS, 2009, pages 457 - 460 |
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JP2020157429A (ja) * | 2019-03-27 | 2020-10-01 | 富士紡ホールディングス株式会社 | 研磨パッド |
JP2020157432A (ja) * | 2019-03-27 | 2020-10-01 | 富士紡ホールディングス株式会社 | 研磨パッド、研磨パッドの製造方法、光学材料又は半導体材料の表面を研磨する方法、及び研磨パッドの評価方法 |
JP2020157431A (ja) * | 2019-03-27 | 2020-10-01 | 富士紡ホールディングス株式会社 | 研磨パッド、研磨パッドの製造方法、光学材料又は半導体材料の表面を研磨する方法、及び研磨パッドの評価方法 |
JP7137504B2 (ja) | 2019-03-27 | 2022-09-14 | 富士紡ホールディングス株式会社 | 研磨パッド、研磨パッドの製造方法、光学材料又は半導体材料の表面を研磨する方法、及び研磨パッドの評価方法 |
JP7137505B2 (ja) | 2019-03-27 | 2022-09-14 | 富士紡ホールディングス株式会社 | 研磨パッド、研磨パッドの製造方法、光学材料又は半導体材料の表面を研磨する方法、及び研磨パッドの評価方法 |
JP7137503B2 (ja) | 2019-03-27 | 2022-09-14 | 富士紡ホールディングス株式会社 | 研磨パッド |
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AU2015418967B2 (en) | 2019-09-19 |
CN108474438B (zh) | 2021-04-20 |
EP3399210A4 (en) | 2019-10-16 |
US10681959B2 (en) | 2020-06-16 |
US20190021443A1 (en) | 2019-01-24 |
AU2015418967A1 (en) | 2018-08-02 |
JPWO2017115416A1 (ja) | 2018-09-20 |
EP3399210A1 (en) | 2018-11-07 |
CN108474438A (zh) | 2018-08-31 |
JP6395344B2 (ja) | 2018-09-26 |
EP3399210B1 (en) | 2021-04-14 |
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