WO2023080109A1 - シューズソール用ブロックポリマー、シューズソール用樹脂組成物及びシューズソール - Google Patents
シューズソール用ブロックポリマー、シューズソール用樹脂組成物及びシューズソール Download PDFInfo
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- WO2023080109A1 WO2023080109A1 PCT/JP2022/040685 JP2022040685W WO2023080109A1 WO 2023080109 A1 WO2023080109 A1 WO 2023080109A1 JP 2022040685 W JP2022040685 W JP 2022040685W WO 2023080109 A1 WO2023080109 A1 WO 2023080109A1
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- WIPO (PCT)
- Prior art keywords
- block polymer
- shoe sole
- acid
- polyamide
- parts
- Prior art date
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- SEIUOYFQDIJJEO-UHFFFAOYSA-N hexane-1,1,1-tricarboxylic acid Chemical compound CCCCCC(C(O)=O)(C(O)=O)C(O)=O SEIUOYFQDIJJEO-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229960000310 isoleucine Drugs 0.000 description 1
- AGPKZVBTJJNPAG-UHFFFAOYSA-N isoleucine Natural products CCC(C)C(N)C(O)=O AGPKZVBTJJNPAG-UHFFFAOYSA-N 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 150000002763 monocarboxylic acids Chemical class 0.000 description 1
- IOQPZZOEVPZRBK-UHFFFAOYSA-N octan-1-amine Chemical compound CCCCCCCCN IOQPZZOEVPZRBK-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229960000969 phenyl salicylate Drugs 0.000 description 1
- COLNVLDHVKWLRT-UHFFFAOYSA-N phenylalanine Natural products OC(=O)C(N)CC1=CC=CC=C1 COLNVLDHVKWLRT-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 239000004474 valine Substances 0.000 description 1
Classifications
-
- 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
- A43B13/14—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D35/00—Producing footwear
- B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
- B29D35/122—Soles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/40—Polyamides containing oxygen in the form of ether groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
-
- 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
-
- 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
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- 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
- C08J9/16—Making expandable particles
- C08J9/18—Making expandable particles by impregnating polymer particles with the blowing agent
-
- 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
- C08K3/011—Crosslinking or vulcanising agents, e.g. accelerators
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L87/00—Compositions of unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
- C08L87/005—Block or graft polymers not provided for in groups C08L1/00 - C08L85/04
-
- 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
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- 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
- C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2371/02—Polyalkylene oxides
-
- 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
- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams 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
- C08J2387/00—Characterised by the use of unspecified macromolecular compounds, obtained otherwise than by polymerisation reactions only involving unsaturated carbon-to-carbon bonds
-
- 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
- C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
- C08J2477/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Definitions
- the present invention relates to block polymers for shoe soles, resin compositions for shoe soles, and shoe soles.
- EVA resin ethylene vinyl acetate resin
- shoe soles a resin for shoe soles.
- Patent Document 1 a sports shoe sole composed of a plurality of members using EVA resin has been proposed.
- An object of the present invention is to provide a shoe sole having a small compressive strain.
- the present invention provides a block polymer for shoe soles (X ), the block polymer (X) for shoe sole having a crosslinked structure in which the crosslinker (K) and the block of polyalkylene glycol (b) are bonded; the block polymer for shoe sole (X) and the block for shoe sole A resin composition (Y) for shoe soles containing a thermoplastic resin (E) other than the polymer (X); a foam-molded product of the block polymer (X) for shoe soles or the resin composition (Y) for shoe soles A certain shoe sole (Z).
- the shoe sole (Z) using the block polymer (X) for shoe sole or the resin composition (Y) for shoe sole of the present invention has a small compressive strain, excellent durability, and excellent resilience. It has the effect of
- the polyamide (am) in the present invention includes a polyamide (am1) having a dicarboxylic acid or an amide-forming derivative thereof and a diamine as essential constituent monomers, a polyamide obtained by subjecting a dicarboxylic acid or a monocarboxylic acid to ring-opening polymerization of a lactam ( am2), polyamide (am3) obtained by ring-opening polymerization of lactam with water, diamine or monoamine, polyamide (am4) obtained by polycondensation of aminocarboxylic acid, and two or more of (am1) to (am4) in one shot Polyamide (am5) obtained by synthesizing with and the like.
- the block of polyamide (am) in the present invention contains one or more of the above polyamides (am).
- Dicarboxylic acids used in the polyamides (am1) and (am2) include dicarboxylic acids having 2 to 20 carbon atoms [aliphatic dicarboxylic acids having 2 to 20 carbon atoms (succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid , azelaic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, maleic acid, fumaric acid and itaconic acid, etc.), aromatic dicarboxylic acids having 8 to 20 carbon atoms (terephthalic acid, phthalic acid, 2,6- or 2, 7-naphthalenedicarboxylic acid, diphenyl-4,4'-dicarboxylic acid, diphenoxyethanedicarboxylic acid, tolylenedicarboxylic acid, xylylenedicarboxylic acid and 5-sulfoisophthalic acid) and alicyclic dicarboxylic acids having 5 to 20 carbon
- Amide-forming derivatives of dicarboxylic acids include alkyl (alkyl having 1 to 4 carbon atoms) esters (methyl esters, ethyl esters, etc.) of the above dicarboxylic acids and acid anhydrides of the above dicarboxylic acids.
- Dicarboxylic acids and amide-forming derivatives thereof may be used alone or in combination of two or more.
- dicarboxylic acids and their amide-forming derivatives used in the polyamide (am1) aliphatic dicarboxylic acids having 2 to 20 carbon atoms and aromatic dicarboxylic acids having 8 to 20 carbon atoms are preferable from the viewpoint of compression strain and resilience.
- Dicarboxylic acids and amide-forming derivatives thereof more preferred are aliphatic dicarboxylic acids having 2 to 20 carbon atoms and amide-forming derivatives thereof, and particularly preferred are aliphatic dicarboxylic acids having 6 to 12 carbon atoms.
- amide-forming derivatives thereof especially preferred are adipic acid, undecanedioic acid, dodecanedioic acid and amide-forming derivatives thereof, most preferred adipic acid and its amide-forming derivatives.
- dicarboxylic acids and their amide-forming derivatives used in the polyamide (am2) aliphatic dicarboxylic acids having 2 to 20 carbon atoms and aromatic dicarboxylic acids having 8 to 20 carbon atoms are preferable from the viewpoint of compressive strain and resilience.
- dicarboxylic acids more preferably aromatic dicarboxylic acids having 8 to 20 carbon atoms (terephthalic acid, phthalic acid, 2,6- or 2,7-naphthalenedicarboxylic acid, diphenyl-4,4'-dicarboxylic acid, diphenoxyethanedicarboxylic acid, tolylenedicarboxylic acid, xylylenedicarboxylic acid and 5-sulfoisophthalic acid), particularly preferred are terephthalic acid, 2,6- or 2,7-naphthalenedicarboxylic acid.
- Diamines used in the polyamides (am1) and (am3) include diamines having 2 to 12 carbon atoms [aliphatic diamines having 2 to 12 carbon atoms (ethylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine and decamethylenediamine etc.) etc.]. Of these, aliphatic diamines having 6 and 10 carbon atoms are preferred, 1,6-diaminohexane and 1,10-diaminodecane are more preferred, and 1,6-diaminohexane is particularly preferred. be.
- a diamine may be used individually by 1 type, or may use 2 or more types together.
- the monocarboxylic acid used in the polyamide (am2) includes monocarboxylic acids having 1 to 20 carbon atoms (capric acid, lauric acid, myristic acid, benzoic acid, t-butylbenzoic acid, 2-naphthalenecarboxylic acid, etc.). be done.
- Monoamines used in the polyamide (am3) include monoamines having 1 to 20 carbon atoms (methylamine, ethylamine, propylamine, hexylamine, octylamine, decylamine, dodecylamine, etc.).
- aminocarboxylic acid used in the polyamide (am4) examples include aminocarboxylic acids having 2 to 12 carbon atoms (preferably 4 to 12, more preferably 6 to 12 carbon atoms). Specifically, amino acids (glycine, alanine, valine, leucine, isoleucine and phenylalanine, etc.), ⁇ -aminocaproic acid, ⁇ -aminoenanthic acid, ⁇ -aminocaprylic acid, ⁇ -aminopelargonic acid, ⁇ -aminocapric acid, 11-aminoundecanoic acid and 12-amino dodecanoic acid and the like.
- amino acids glycine, alanine, valine, leucine, isoleucine and phenylalanine, etc.
- amino acids glycine, alanine, valine, leucine, isoleucine and phenylalanine, etc.
- amino acids glycine, alanine, valine, le
- aminocarboxylic acids glycine, leucine, 8-aminocaprylic acid, 11-aminoundecanoic acid and 12-aminododecanoic acid are preferred from the viewpoint of compression set and resilience, and 8 is more preferred.
- -aminocaprylic acid, 11-aminoundecanoic acid and 12-aminododecanoic acid particularly preferred are 11-aminoundecanoic acid and 12-aminododecanoic acid, most preferred is 12-aminododecanoic acid.
- the content of carboxyl groups in blocks of polyamide (am) is represented by an acid value (unit: mgKOH/g), and the content of amino groups in the polyamide (am) is represented by an amine value (unit: mgKOH/g ).
- the acid value in the present invention is measured by titration using a KOH/methanol solution containing phenolphthalein as an indicator. measured as a value.
- the polyamide (am) preferably has a carboxyl group.
- the acid value of the polyamide (am) having carboxyl groups is preferably 20 to 220 mgKOH/g, more preferably 25 to 150 mgKOH/g, particularly preferably 30 to 120 mgKOH/g, from the viewpoint of compression set and resilience.
- the number average molecular weight (hereinafter abbreviated as Mn) of the polyamide (am) is preferably 500 to 5,000, more preferably 750 to 4,000, particularly preferably 1, from the viewpoint of compression strain and resilience. ,000 to 4,000.
- the number average molecular weight (Mn) of the polymer in the invention can be measured using gel permeation chromatography (GPC) under the following conditions.
- Sample solution 0.3 wt% ortho-dichlorobenzene solution
- Solution injection amount 100 ⁇ l
- Flow rate 1 ml/min
- ⁇ Measurement temperature 135°C
- Detector Refractive index detector
- a general method for producing polyamide can be applied as it is.
- the polyamidation reaction is carried out, for example, under reduced pressure in a temperature range of 150 to 300° C., preferably for a reaction time of 0.5 to 20 hours.
- a catalyst generally used for a polyamidation reaction may be used.
- the polyalkylene glycol (b) in the present invention contains an alkylene glycol having 3 to 4 carbon atoms as a constituent monomer. It is preferred that the alkylene glycol has 4 carbon atoms.
- Polyalkylene glycol (b) includes, for example, polytetramethylene glycol, polypropylene glycol, and terminal-modified products thereof (amino group-modified products, glycidyl etherified products).
- the block of polyalkylene glycol (b) in the present invention contains one or more of the above polyalkylene glycols (b).
- Mn of the polyalkylene glycol (b) is preferably 500 to 4,000, more preferably 750 to 3,000, particularly preferably 1,000 to 3,000, from the viewpoint of compression strain and resilience. .
- block polymer (X) for shoe soles of the present invention comprises blocks of the polyamide (am) and blocks of the polyalkylene glycol (b) as constituent units. have as
- Mn of the polyamide (am) block is preferably 500 to 5,000, more preferably 750 to 4,000, particularly preferably 1,000 to 4,000, from the viewpoint of compressive strain and resilience. .
- Mn of the block of polyalkylene glycol (b) is preferably 500 to 4,000, more preferably 750 to 3,000, particularly preferably 1,000 to 3,000, from the viewpoint of compression strain and resilience. is.
- the structure in which the block of polyamide (am) and the block of polyolefin (b) that constitute the block polymer (X) are bonded includes (a)-(b) type, (a)-(b)-(a) type, (b)-(a)-(b) type and [(a)-(b)] n type (where n represents the average number of repetitions).
- the block polymer (X) can be produced, for example, by reacting the polyamide (am) and the polyalkylene glycol (b).
- the block polymer (X) has a structure in which a polyamide (am) block and a polyalkylene glycol (b) block are bonded via an amide bond, an imide bond or an ester bond, for example, a polyamide ( am) and polyalkylene glycol (b) are put into a reaction vessel, and under stirring, at a reaction temperature of 100 to 250° C. and a pressure of 0.1 MPa or less, the water produced by the amidation reaction, imidization reaction or esterification reaction is removed. It can be produced by a method of reacting for 1 to 50 hours while removing it from the reaction system.
- the block polymer (X) has the below-described crosslinking agent (K) as a structural unit.
- the block polymer (X) has a crosslinked structure in which the crosslinker (K) and the block of the polyalkylene glycol (b) are bonded.
- the cross-linking agent (K) and the block of the polyalkylene glycol (b) are preferably bonded via 3 or more bonds, and 3 or more ester bonds and/or amide bonds. It is more preferable to bind via.
- Mn of the block polymer (X) is preferably 10,000 to 150,000, more preferably 10,000 to 100,000, particularly preferably 20,000 to 80,000.
- the block polymer (X) for shoe soles of the present invention can be suitably used as a raw material resin for various shoe soles (outsoles, midsoles).
- the cross-linking agent (K) in the present invention is a compound capable of cross-linking the polyalkylene glycol (b) and having at least three functional groups capable of reacting with the terminal functional groups of the polyalkylene glycol (b). is preferred.
- the cross-linking agent (K) is preferably a compound having at least three functional groups (eg, carboxyl group, amino group, epoxy group, hydroxyl group) capable of reacting with a hydroxyl group and/or an amino group.
- a carboxyl group is preferable from the viewpoint of reactivity with the polyalkylene glycol (b).
- the cross-linking agent (K) is not particularly limited as long as it reacts with the polyalkylene glycol (b). and polyols (K4) having a valence of 3 or more.
- Trivalent or higher polycarboxylic acids (K1) include, for example, trimesic acid, trimellitic acid, pyromellitic acid, hexanetricarboxylic acid, decanetricarboxylic acid, their acid anhydrides, and their alkyls (where the alkyl has 1 to 2) esters;
- Trivalent or higher polyepoxides (K2) include, for example, triglycidyl ether of trimethylolpropane.
- Examples of trivalent or higher polyamines (K3) include triethylenetetramine.
- trivalent or higher polyols (K4) include triethanolamine.
- the crosslinking agent (K) When introducing a crosslinked structure into the block polymer (X), the crosslinking agent (K) may be added at any time before, during, or after the reaction between the polyamide (am) and the polyalkylene glycol (b). good.
- the amount of the cross-linking agent (K) is such that the molar ratio [(K)/(am)] between the cross-linking agent (K) and the polyamide (am) is preferably 3/97 to 35 from the viewpoint of compression set and resilience. /65, more preferably 5/95 to 20/80.
- the resin composition (Y) for shoe soles of the present invention is the block polymer (X) for shoe soles of the present invention and a block polymer other than the block polymer (X). It contains a thermoplastic resin (E).
- the thermoplastic resin (E) include polyolefin resin (E1), polystyrene resin (E2), acrylic resin (E3), polyamide resin (E4), polyester resin (E5), polyacetal resin (E6), polycarbonate resin ( E7) and polyurethane resins (E8).
- the polyamide resin (E4) is preferable from the viewpoint of compressive strain and resilience.
- Mn of the thermoplastic resin (E) is preferably 7,000 to 500,000, more preferably 10,000 to 200,000. Further, the weight ratio [(X)/(E)] between the block polymer (X) for shoe sole and the thermoplastic resin (E) other than the block polymer (X) is preferably 60/40 to 95/5, It is more preferably 70/30 to 90/10.
- the total content of the additive (D) based on the weight of the shoe sole block polymer (X) and the shoe sole resin composition (Y) is generally 45% by weight or less.
- the content of each additive (D) is preferably 0.001 to 40% by weight, more preferably 0.01 to 35% by weight; 0.1 to 3% by weight, more preferably 0.2 to 2% by weight; release agent (D2) is preferably 0.01 to 3% by weight, more preferably 0.05 to 1% by weight; antioxidant (D3) is preferably 0.01-3% by weight, more preferably 0.05-1% by weight; flame retardant (D4) is preferably 0.5-20% by weight, more preferably 1-10% by weight; UV absorber (D5) is preferably 0.01 to 3 wt%, more preferably 0.05 to 1 wt%; antibacterial agent (D6) is preferably 0.5 to 20 wt%, more preferably 1 to 10 % by weight; compatibilizer (D7) is preferably 0.5 to 10% by weight, more preferably 1 to 5% by
- the shoe sole (Z) of the present invention is a foam-molded article of the block polymer (X) for shoe sole or the resin composition (Y) for shoe sole.
- the density of the shoe sole (Z) is preferably 0.20-0.90 g/cm 3 , more preferably 0.30-0.80 g/cm 3 .
- density is a value measured at 23° C. according to ASTM D1505.
- the shoe sole (Z) of the present invention can be produced by mixing the shoe sole block polymer (X) or the shoe sole resin composition (Y) with, for example, an open roll, followed by foam molding. After foam molding, if necessary, further processing may be performed.
- the molding temperature during foam molding is, for example, 150°C to 220°C.
- a foaming agent (C) may be used in the foam molding.
- foaming agents (C) include azodicarbonamide (ADCA), azobisisobutyronitrile (AIBN), and dinitrosopentamethylenetetramine (DPT).
- Weight ratio of block polymer (X) to blowing agent (C) [(X)/(C)] and weight ratio of resin composition (Y) to blowing agent (C) [(Y)/(C)] is preferably 90/10 to 99/1, more preferably 93/7 to 99/2, depending on the desired density.
- the block polymer (X) for shoe soles of the present invention can be suitably used as a raw material resin for various shoe soles (outsoles, midsoles).
- the shoe sole (Z) using the block polymer (X) for shoe soles has a small compressive strain, excellent durability, and excellent resilience (low loss factor, temperature-dependent change in resilience). small), so it is useful as a midsole or outsole.
- a block polymer (X) for shoe soles comprising a block of polyamide (am) and a block of polyalkylene glycol (b) containing an alkylene glycol having 3 to 4 carbon atoms as a constituent monomer as constituent units.
- a block polymer (X) for shoe soles having a crosslinked structure in which a crosslinker (K) and blocks of polyalkylene glycol (b) are bonded.
- the weight ratio [(am)/(b)] of the block of the polyamide (am) to the block of the polyalkylene glycol (b) is 15/85 to 90/10 [1] to [3]
- the block polymer (X) for shoe soles according to any one of the above.
- a shoe sole (Z) which is a foamed molding of the block polymer (X) for shoe soles according to any one of [1] to [6] or the resin composition (Y) for shoe soles according to [7].
- Example 1 92 parts of polyamide (am-1), 205 parts of polytetramethylene glycol (b-1) (PTMG, Mn: 2,000), and trimellitic anhydride are placed in a reaction vessel equipped with a stirrer, thermometer and heating/cooling device. 1.9 parts of zirconium acetate and 0.6 parts of zirconium acetate were added, the temperature was raised to 240° C. while stirring, and polymerized at the same temperature for 6 hours under reduced pressure (0.13 kPa or less) to obtain a shoe sole block polymer (X -1) (Mn: 43,000) was obtained.
- X -1 shoe sole block polymer
- Example 2 71 parts of polyamide (am-1), 229 parts of polytetramethylene glycol (b-1), 5.7 parts of trimellitic anhydride and 0.1 part of zirconium acetate were placed in a reaction vessel equipped with a stirrer, thermometer and heating/cooling device. 6 parts were added, the temperature was raised to 240° C. while stirring, and polymerization was performed at the same temperature for 6 hours under reduced pressure (0.13 kPa or less) to obtain block polymer for shoe sole (X-2) (Mn: 60,000). ).
- Example 3 190 parts of polyamide (am-2), 107 parts of polytetramethylene glycol (b-2) (PTMG, Mn: 1,000), trimellitic anhydride were placed in a reaction vessel equipped with a stirrer, thermometer and heating/cooling device. 2.0 parts of zirconium acetate and 0.6 parts of zirconium acetate were added, the temperature was raised to 240° C. while stirring, and polymerized at the same temperature for 6 hours under reduced pressure (0.13 kPa or less) to obtain a shoe sole block polymer (X -3) (Mn: 52,000) was obtained.
- X -3 shoe sole block polymer
- Example 4 177 parts of polyamide (am-2), 118 parts of polytetramethylene glycol (b-2), 4.1 parts of trimellitic anhydride and 0.1 part of zirconium acetate were placed in a reaction vessel equipped with a stirrer, thermometer and heating/cooling device. 6 parts were added, the temperature was raised to 240° C. while stirring, and polymerization was performed at the same temperature for 6 hours under reduced pressure (0.13 kPa or less) to obtain block polymer for shoe sole (X-4) (Mn: 58,000). ).
- Example 5 163 parts of polyamide (am-2), 118 parts of polytetramethylene glycol (b-2), 6.3 parts of trimellitic anhydride and 0.2 parts of zirconium acetate were placed in a reaction vessel equipped with a stirrer, thermometer and heating/cooling device. 6 parts were added, the temperature was raised to 240° C. while stirring, and polymerization was performed at the same temperature for 6 hours under reduced pressure (0.13 kPa or less) to obtain block polymer for shoe sole (X-5) (Mn: 65,000). ).
- Example 6 191 parts of polyamide (am-3), 130 parts of polytetramethylene glycol (b-1), 1.0 part of trimellitic anhydride and 0.2 parts of zirconium acetate were placed in a reaction vessel equipped with a stirrer, thermometer and heating/cooling device. 6 parts were added, the temperature was raised to 240° C. while stirring, and polymerization was performed at the same temperature for 6 hours under reduced pressure (0.13 kPa or less) to obtain block polymer for shoe sole (X-6) (Mn: 57,000). ).
- Example 7 233 parts of polyamide (am-3), 66 parts of polytetramethylene glycol (b-2), 1.2 parts of trimellitic anhydride and 0.2 parts of zirconium acetate were placed in a reaction vessel equipped with a stirrer, thermometer and heating/cooling device. 6 parts were added, the temperature was raised to 240° C. while stirring, and polymerization was performed at the same temperature for 6 hours under reduced pressure (0.13 kPa or less) to obtain block polymer for shoe sole (X-7) (Mn: 54,000). ).
- Example 8 92 parts of polyamide (am-1), 205 parts of polypropylene glycol (b-3) (PPG, Mn: 2,000) and 1.5 parts of trimellitic anhydride were added to a reaction vessel equipped with a stirrer, thermometer and heating/cooling device. 9 parts of zirconium acetate and 0.6 parts of zirconium acetate were added, the temperature was raised to 240° C. while stirring, and polymerized at the same temperature for 6 hours under reduced pressure (0.13 kPa or less) to obtain a block polymer for shoe soles (X-8 ) (Mn: 42,000).
- Example 9 190 parts of polyamide (am-2), 108 parts of polypropylene glycol (b-4) (PPG, Mn: 1,000), trimellitic anhydride 2.0. 0 part and 0.6 part of zirconium acetate were added, the temperature was raised to 240° C. while stirring, and polymerized at the same temperature for 6 hours under reduced pressure (0.13 kPa or less) to obtain a block polymer for shoe sole (X-9 ) (Mn: 50,000).
- Example 10 139 parts of polyamide (am-2), 159 parts of polytetramethylene glycol (b-1) (Mn: 2,000) and 1.6 parts of trimesic acid were placed in a reaction vessel equipped with a stirrer, thermometer and heating/cooling device. and 0.6 parts of zirconium acetate are added, the temperature is raised to 240° C. while stirring, and polymerization is performed at the same temperature for 6 hours under reduced pressure (0.13 kPa or less) to obtain a shoe sole block polymer (X-10) ( Mn: 53,000).
- Example 11 139 parts of polyamide (am-2), 159 parts of polypropylene glycol diamine (b-5), 1.6 parts of trimesic acid and 0.6 parts of zirconium acetate were placed in a reaction vessel equipped with a stirrer, thermometer and heating/cooling device. The temperature was raised to 240° C. while stirring, and polymerized at the same temperature for 6 hours under reduced pressure (0.13 kPa or less) to obtain a block polymer for shoe sole (X-11) (Mn: 62,000). rice field.
- Example 12 70 parts of block polymer (X-3) for shoe sole obtained in Example 3 and polyamide resin (E-1) [6 nylon resin, trade name "UBE nylon 1013B", manufactured by UBE Corporation, Mn 13,000] Thirty parts of the mixture was kneaded with a twin-screw extruder under conditions of 240° C. and a residence time of 30 seconds, and pelletized to obtain a shoe sole resin composition (Y-12).
- E-1 6 nylon resin, trade name "UBE nylon 1013B", manufactured by UBE Corporation, Mn 13,000
- Example 13 90 parts of block polymer (X-3) for shoe sole obtained in Example 3 and polyamide resin (E-2) [12 nylon resin, trade name "UBE nylon 3014U", manufactured by UBE Corporation, Mn 14,000] Ten parts were kneaded with a twin-screw extruder under conditions of 200° C. and a residence time of 30 seconds, and pelletized to obtain a resin composition for shoe soles (Y-13).
- Example 14 70 parts of the block polymer for shoe soles (X-3) obtained in Example 3 and 30 parts of the polyamide resin (E-2) [above "UBE nylon 3014U”] were biaxially molded under the conditions of 200°C and a residence time of 30 seconds. The mixture was kneaded by an extruder and pelletized to obtain a shoe sole resin composition (Y-14).
- Example 15 90 parts of the block polymer for shoe soles (X-5) obtained in Example 5 and 10 parts of the polyamide resin (E-2) [above "UBE Nylon 3014U”] were biaxially molded under conditions of 200°C and a residence time of 30 seconds. The mixture was kneaded by an extruder and pelletized to obtain a shoe sole resin composition (Y-15).
- Example 16 70 parts of the block polymer for shoe soles (X-5) obtained in Example 5 and 30 parts of the polyamide resin (E-2) [above "UBE nylon 3014U”] were biaxially molded under the conditions of 200°C and a residence time of 30 seconds. The mixture was kneaded by an extruder and pelletized to obtain a shoe sole resin composition (Y-16).
- Example 17 After mixing 100 parts of the block polymer for shoe sole (X-1) and 4 parts of the foaming agent (C-1) in an open roll, foam molding is performed at 200° C. and 15 MPa to obtain a shoe sole (Z-1 ). The resulting shoe sole (Z-1) was evaluated.
- Example 18 to 32 Comparative Examples 4 to 6> Each shoe sole (Z) was obtained in the same manner as in Example 17, except that the raw material composition (parts) in Table 1 was followed. Table 1 shows the results.
- Compressive strain (L0-L5) x 100/L0 ⁇ Evaluation Criteria> ⁇ : Compressive strain less than 10% ⁇ : Compressive strain 10% or more to less than 15% ⁇ : Compressive strain 15% or more to less than 20% ⁇ : Compressive strain 20% or more
- ⁇ Sample shape 40 ⁇ 3 mm long, 5 ⁇ 0.3 mm wide, 3 ⁇ 0.3 mm thick strip
- ⁇ Measurement mode Tensile mode with sinusoidal strain ⁇ Distance between chucks: 30 ⁇ 0.2 mm ⁇ Temperature: -50 to 200°C ⁇ Frequency: 10Hz ⁇ Load: Automatic static load ⁇ Dynamic strain: 3 ⁇ m
- each raw material is as follows.
- EVA resin manufactured by Mitsui Chemicals, Inc., trade name "Evaflex 270"
- Cross-linking agent dicumyl peroxide (DCP) [manufactured by NOF Corporation, trade name “Percumyl D”]
- the shoe sole (Z) using the block polymer (X) for shoe soles of the present invention has a smaller compressive strain, superior durability, and better resilience than the comparative ones. It can be seen that it is excellent (loss factor is small and change in resilience due to temperature is small).
- the block polymer (X) for shoe soles of the present invention can be suitably used as a raw material resin for various shoe soles (outsoles, midsoles). Further, the shoe sole (Z) using the block polymer (X) for shoe sole has a small compressive strain, excellent durability, and excellent resilience, and thus is useful as a midsole and an outsole.
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Abstract
Description
本発明の目的は、圧縮歪みが小であるシューズソールを提供することにある。
本発明におけるポリアミド(am)としては、ジカルボン酸又はそのアミド形成性誘導体とジアミンとを必須構成単量体とするポリアミド(am1)、ジカルボン酸又はモノカルボン酸にラクタムを開環重合させたポリアミド(am2)、水、ジアミン又はモノアミンにラクタムを開環重合させたポリアミド(am3)、アミノカルボン酸を重縮合させたポリアミド(am4)及び(am1)~(am4)の内の2種以上をワンショットで合成して得られるポリアミド(am5)等が挙げられる。
本発明におけるポリアミド(am)のブロックは、1種以上の上記ポリアミド(am)を含む。
ジカルボン酸及びそのアミド形成性誘導体は、それぞれ1種を単独で用いても2種以上を併用してもよい。
これらのうち、好ましいのは、炭素数6及び炭素数10の脂肪族ジアミン、更に好ましいのは、1,6-ジアミノヘキサン及び1,10-ジアミノデカン、特に好ましいのは1,6-ジアミノヘキサンである。
ジアミンは、1種を単独で用いても2種以上を併用してもよい。
上記アミノカルボン酸のうち、圧縮歪み及び反発性の観点から、好ましいのは、グリシン、ロイシン、8-アミノカプリル酸、11-アミノウンデカン酸及び12-アミノドデカン酸であり、更に好ましいのは、8-アミノカプリル酸、11-アミノウンデカン酸及び12-アミノドデカン酸、特に好ましいのは11-アミノウンデカン酸及び12-アミノドデカン酸、最も好ましいのは12-アミノドデカン酸である。
本発明における酸価は、指示薬としてフェノールフタレインを含むKOH/メタノール溶液を用いた滴定によって測定され、酸基がカルボン酸無水物基の場合、メタノールによりハーフエステル化された後のハーフエステル化酸価として測定される。
・装置:「HLC-8120」[東ソー(株)製]
・カラム:「TSKgelGMHXL」[東ソー(株)製](2本)、及び、「TSKgelMultiporeHXL-M」[東ソー(株)製](1本)
・試料溶液:0.3重量%のオルトジクロロベンゼン溶液
・溶液注入量:100μl
・流量:1ml/分
・測定温度:135℃
・検出装置:屈折率検出器
・基準物質:標準ポリスチレン(TSKstandardPOLYSTYRENE)
12点(分子量:500、1,050、2,800、5,970、9,100、18,100、37,900、96,400、190,000、355,000、1,090,000、2,890,000)[東ソー(株)製]
本発明におけるポリアルキレングリコール(b)は、炭素数が3~4のアルキレングリコールを構成単量体として含む。アルキレングリコールの炭素数が4であることが好ましい。
ポリアルキレングリコール(b)としては、例えば、ポリテトラメチレングリコール、ポリプロピレングリコール、それらの末端変性物(アミノ基変性物、グリシジルエーテル化物)が挙げられる。
本発明におけるポリアルキレングリコール(b)のブロックは、1種以上の上記ポリアルキレングリコール(b)を含む。
これらのうち、ブロックポリマーの生産性の観点から、ポリマー主鎖の少なくとも一方の末端に水酸基又はアミノ基を有するものが好ましい。
ポリアルキレングリコール(b)は、公知の製造方法(触媒下でテトラヒドロフラン、プロピレンオキサイドを重合)で得られる。また、その変性物も公知の製造方法で得られる。ポリアルキレングリコール(b)は、上記方法で得ても、市販品を使用してもよい。
本発明のシューズソール用ブロックポリマー(X)[以下、ブロックポリマー(X)と略記することがある]は、上記ポリアミド(am)のブロックと、上記ポリアルキレングリコール(b)のブロックとを構成単位として有する。
本発明のシューズソール用ブロックポリマー(X)は、種々のシューズソール(アウトソール、ミッドソール)の原料樹脂として好適に使用できる。
本発明における架橋剤(K)は、ポリアルキレングリコール(b)を架橋し得る化合物であり、ポリアルキレングリコール(b)の末端の官能基と反応し得る官能基を少なくとも3個有する化合物であることが好ましい。
架橋剤(K)としては、水酸基及び/又はアミノ基と反応し得る官能基(例えば、カルボキシル基、アミノ基、エポキシ基、水酸基)を少なくとも3個有する化合物が好ましい。これらの官能基のうち、ポリアルキレングリコール(b)との反応性の観点から好ましいのは、カルボキシル基である。
3価以上のポリカルボン酸(K1)としては、例えば、トリメシン酸、トリメリット酸、ピロメリット酸、ヘキサントリカルボン酸、デカントリカルボン酸及びそれらの酸無水物とそれらのアルキル(アルキルの炭素数1~2)エステルが挙げられる。
3価以上のポリエポキシド(K2)としては、例えば、トリメチロールプロパンのトリグリシジルエーテルが挙げられる。
3価以上のポリアミン(K3)としては、例えば、トリエチレンテトラミンが挙げられる。
3価以上のポリオール(K4)としては、例えば、トリエタノールアミンが挙げられる。
架橋剤(K)の量は、圧縮歪み及び反発性の観点から、架橋剤(K)とポリアミド(am)とのモル比[(K)/(am)]が、好ましくは3/97~35/65、更に好ましくは5/95~20/80である。
本発明のシューズソール用樹脂組成物(Y)[以下、樹脂組成物(Y)と略記することがある]は、本発明のシューズソール用ブロックポリマー(X)と上記ブロックポリマー(X)以外の熱可塑性樹脂(E)とを含有する。
熱可塑性樹脂(E)としては、例えば、ポリオレフィン樹脂(E1)、ポリスチレン樹脂(E2)、アクリル樹脂(E3)、ポリアミド樹脂(E4)、ポリエステル樹脂(E5)、ポリアセタール樹脂(E6)、ポリカーボネート樹脂(E7)、ポリウレタン樹脂(E8)が挙げられる。
上記熱可塑性樹脂(E)のうち、圧縮歪み及び反発性の観点から、好ましいのはポリアミド樹脂(E4)である。
また、シューズソール用ブロックポリマー(X)と上記ブロックポリマー(X)以外の熱可塑性樹脂(E)との重量比[(X)/(E)]は、好ましくは60/40~95/5、更に好ましくは70/30~90/10である。
本発明のシューズソール(Z)は、上記シューズソール用ブロックポリマー(X)又は上記シューズソール用樹脂組成物(Y)の発泡成形体である。
シューズソール(Z)の密度は、好ましくは0.20~0.90g/cm3であり、更に好ましくは0.30~0.80g/cm3である。
本発明において、密度は、ASTMD1505に従い、23℃で測定した値である。
発泡成形時の成形温度は、例えば、150℃~220℃である。
発泡剤(C)としては、例えば、アゾジカルボンアミド(ADCA)、アゾビスイソブチロニトリル(AIBN)、ジニトロソペンタメチレンテトラミン(DPT)が挙げられる。
ブロックポリマー(X)と発泡剤(C)との重量比[(X)/(C)]及び樹脂組成物(Y)と発泡剤(C)との重量比[(Y)/(C)]は、所望の密度によって異なるが、いずれも好ましくは90/10~99/1、更に好ましくは93/7~99/2である。
[ポリアミド(am-1)の製造]
耐圧反応容器に、12-ラウロラクタム82.5部、テレフタル酸16.3部、酸化防止剤[商品名「イルガノックス1010」、BASFジャパン(株)製]0.3部及び水10部を投入し、窒素置換後、密閉下、撹拌しながら220℃まで昇温し、220℃、0.2~0.3MPaの圧力下で4時間撹拌し、両末端にカルボキシル基を有するポリアミド(am-1)を得た。
ポリアミド(am-1)の酸価は109、Mnは1,000であった。
[ポリアミド(am-2)の製造]
製造例1と同様の耐圧反応容器に、12-ラウロラクタム89.9部、テレフタル酸8.9部、酸化防止剤[上記「イルガノックス1010」]0.3部及び水10部を投入し、窒素置換後、密閉下、撹拌しながら220℃まで昇温し、220℃、0.2~0.3MPaの圧力下で4時間撹拌し、両末端にカルボキシル基を有するポリアミド(am-2)を得た。
ポリアミド(am-2)の酸価は54.5、Mnは2,000であった。
[ポリアミド(am-3)の製造]
製造例1と同様の耐圧反応容器に、12-ラウロラクタム95.9部、テレフタル酸4.1部、酸化防止剤[上記「イルガノックス1010」]0.3部及び水10部を投入し、窒素置換後、密閉下、撹拌しながら220℃まで昇温し、220℃、0.2~0.3MPaの圧力下で4時間撹拌し、両末端にカルボキシル基を有するポリアミド(am-3)を得た。
ポリアミド(am-3)の酸価は27.4、Mnは4,100であった。
撹拌機、温度計及び加熱冷却装置を備えた反応容器に、ポリアミド(am-1)92部、ポリテトラメチレングリコール(b-1)(PTMG、Mn:2,000)205部、無水トリメリット酸1.9部および酢酸ジルコニウム0.6部を投入し、撹拌しながら240℃に昇温し、減圧下(0.13kPa以下)、同温度で6時間重合させて、シューズソール用ブロックポリマー(X-1)(Mn:43,000)を得た。
撹拌機、温度計及び加熱冷却装置を備えた反応容器に、ポリアミド(am-1)71部、ポリテトラメチレングリコール(b-1)229部、無水トリメリット酸5.7部および酢酸ジルコニウム0.6部を投入し、撹拌しながら240℃に昇温し、減圧下(0.13kPa以下)、同温度で6時間重合させて、シューズソール用ブロックポリマー(X-2)(Mn:60,000)を得た。
撹拌機、温度計及び加熱冷却装置を備えた反応容器に、ポリアミド(am-2)190部、ポリテトラメチレングリコール(b-2)(PTMG、Mn:1,000)107部、無水トリメリット酸2.0部および酢酸ジルコニウム0.6部を投入し、撹拌しながら240℃に昇温し、減圧下(0.13kPa以下)、同温度で6時間重合させて、シューズソール用ブロックポリマー(X-3)(Mn:52,000)を得た。
撹拌機、温度計及び加熱冷却装置を備えた反応容器に、ポリアミド(am-2)177部、ポリテトラメチレングリコール(b-2)118部、無水トリメリット酸4.1部および酢酸ジルコニウム0.6部を投入し、撹拌しながら240℃に昇温し、減圧下(0.13kPa以下)、同温度で6時間重合させて、シューズソール用ブロックポリマー(X-4)(Mn:58,000)を得た。
撹拌機、温度計及び加熱冷却装置を備えた反応容器に、ポリアミド(am-2)163部、ポリテトラメチレングリコール(b-2)118部、無水トリメリット酸6.3部および酢酸ジルコニウム0.6部を投入し、撹拌しながら240℃に昇温し、減圧下(0.13kPa以下)、同温度で6時間重合させて、シューズソール用ブロックポリマー(X-5)(Mn:65,000)を得た。
撹拌機、温度計及び加熱冷却装置を備えた反応容器に、ポリアミド(am-3)191部、ポリテトラメチレングリコール(b-1)130部、無水トリメリット酸1.0部および酢酸ジルコニウム0.6部を投入し、撹拌しながら240℃に昇温し、減圧下(0.13kPa以下)、同温度で6時間重合させて、シューズソール用ブロックポリマー(X-6)(Mn:57,000)を得た。
撹拌機、温度計及び加熱冷却装置を備えた反応容器に、ポリアミド(am-3)233部、ポリテトラメチレングリコール(b-2)66部、無水トリメリット酸1.2部および酢酸ジルコニウム0.6部を投入し、撹拌しながら240℃に昇温し、減圧下(0.13kPa以下)、同温度で6時間重合させて、シューズソール用ブロックポリマー(X-7)(Mn:54,000)を得た。
撹拌機、温度計及び加熱冷却装置を備えた反応容器に、ポリアミド(am-1)92部、ポリプロピレングリコール(b-3)(PPG、Mn:2,000)205部、無水トリメリット酸1.9部および酢酸ジルコニウム0.6部を投入し、撹拌しながら240℃に昇温し、減圧下(0.13kPa以下)、同温度で6時間重合させて、シューズソール用ブロックポリマー(X-8)(Mn:42,000)を得た。
撹拌機、温度計及び加熱冷却装置を備えた反応容器に、ポリアミド(am-2)190部、ポリプロピレングリコール(b-4)(PPG、Mn:1,000)108部、無水トリメリット酸2.0部および酢酸ジルコニウム0.6部を投入し、撹拌しながら240℃に昇温し、減圧下(0.13kPa以下)、同温度で6時間重合させて、シューズソール用ブロックポリマー(X-9)(Mn:50,000)を得た。
撹拌機、温度計及び加熱冷却装置を備えた反応容器に、ポリアミド(am-2)139部、ポリテトラメチレングリコール(b-1)(Mn:2,000)159部、トリメシン酸1.6部および酢酸ジルコニウム0.6部を投入し、撹拌しながら240℃に昇温し、減圧下(0.13kPa以下)、同温度で6時間重合させて、シューズソール用ブロックポリマー(X-10)(Mn:53,000)を得た。
撹拌機、温度計及び加熱冷却装置を備えた反応容器に、ポリアミド(am-2)139部、ポリプロピレングリコールジアミン(b-5)159部、トリメシン酸1.6部および酢酸ジルコニウム0.6部を投入し、撹拌しながら240℃に昇温し、減圧下(0.13kPa以下)、同温度で6時間重合させて、シューズソール用ブロックポリマー(X-11)(Mn:62,000)を得た。
実施例3で得られたシューズソール用ブロックポリマー(X-3)70部とポリアミド樹脂(E-1)[6ナイロン樹脂、商品名「UBEナイロン1013B」、UBE(株)製、Mn13,000]30部を240℃、滞留時間30秒の条件で二軸押し出し機によって混練し、ペレット化して、シューズソール用樹脂組成物(Y-12)を得た。
実施例3で得られたシューズソール用ブロックポリマー(X-3)90部とポリアミド樹脂(E-2)[12ナイロン樹脂、商品名「UBEナイロン3014U」、UBE(株)製、Mn14,000]10部を200℃、滞留時間30秒の条件で二軸押し出し機によって混練し、ペレット化して、シューズソール用樹脂組成物(Y-13)を得た。
実施例3で得られたシューズソール用ブロックポリマー(X-3)70部とポリアミド樹脂(E-2)[上記「UBEナイロン3014U」]30部を200℃、滞留時間30秒の条件で二軸押し出し機によって混練し、ペレット化して、シューズソール用樹脂組成物(Y-14)を得た。
実施例5で得られたシューズソール用ブロックポリマー(X-5)90部とポリアミド樹脂(E-2)[上記「UBEナイロン3014U」]10部を200℃、滞留時間30秒の条件で二軸押し出し機によって混練し、ペレット化して、シューズソール用樹脂組成物(Y-15)を得た。
実施例5で得られたシューズソール用ブロックポリマー(X-5)70部とポリアミド樹脂(E-2)[上記「UBEナイロン3014U」]30部を200℃、滞留時間30秒の条件で二軸押し出し機によって混練し、ペレット化して、シューズソール用樹脂組成物(Y-16)を得た。
撹拌機、温度計及び加熱冷却装置を備えた反応容器に、ポリアミド(am-2)202部、ポリテトラメチレングリコール(b-2)98部および酢酸ジルコニウム0.6部を投入し、撹拌しながら240℃に昇温し、減圧下(0.13kPa以下)、同温度で6時間重合させて、シューズソール用ブロックポリマー(比X-1)(Mn:40,000)を得た。
撹拌機、温度計及び加熱冷却装置を備えた反応容器に、ポリアミド(am-2)206部、ポリテトラメチレングリコール(b-2)93部、グリセリン1.0部および酢酸ジルコニウム0.6部を投入し、撹拌しながら240℃に昇温し、減圧下(0.13kPa以下)、同温度で6時間重合させて、シューズソール用ブロックポリマー(比X-2)(Mn:45,000)を得た。
比較のためのブロックポリマーとして市販のEVA樹脂:三井化学株式会社製、商品名「エバフレックス270」を使用した。
シューズソール用ブロックポリマー(X-1)100部と、発泡剤(C-1)4部とをオープンロールで混合した後、200℃、15MPaの条件で発泡成形して、シューズソール(Z-1)を得た。得られたシューズソール(Z-1)について、評価を行った。
表1の原料組成(部)に従った以外は、実施例17と同様にして、各シューズソール(Z)を得た。結果を表1に示す。
(1)密度
密度(g/cm3)は、ASTMD1505に従い、23℃にて求めた。
得られたソール(タテ5cm×ヨコ5cm×高さ5cm)に、50℃の条件下、10kgf/cm2で20時間荷重をかけ、4時間開放する試験を1回として、試験を合計5回行い、試験前の高さをL0、試験後の高さをL5として、下記(式)により、圧縮歪みを求めて、以下の<評価基準>で評価した。
圧縮歪み(%)=(L0-L5)×100/L0
<評価基準>
◎:圧縮歪みが10%未満
〇:圧縮歪みが10%以上~15%未満
△:圧縮歪みが15%以上~20%未満
×:圧縮歪みが20%以上
得られたソールから試料を採取し、JIS K7244-4に準拠して下記(測定条件)で動的粘弾性を測定し、23℃における損失係数[tanδ]を求めて、以下の<評価基準>で評価した。
(測定条件)
・測定機器:(株)ユービーエム製、動的粘弾性測定装置Rheogel-E4000
・サンプル形状:長さ40±3mm、幅5±0.3mm、厚さ3±0.3mmの短冊状
・測定モード:正弦波歪みの引張モード
・チャック間距離:30±0.2mm
・温度:-50~200℃
・周波数:10Hz
・荷重:自動静荷重
・動歪み:3μm
◎:0.06未満
〇:0.06以上0.1未満
△:0.1以上0.15未満
×:0.15以上
上記(3)と同様に、動的粘弾性の測定データから、-20℃における損失係数(-20℃[tanδ])と、25℃における損失係数(25℃[tanδ])を求めて、-20℃[tanδ]/25℃[tanδ]を、以下の<評価基準>で評価した。
◎:0.75以上~1.25未満
〇:0.6以上0.75未満、または1.25以上1.4未満
△:0.4以上0.6未満、または1.4以上1.6未満
×:0.4未満、または1.6以上
得られたソールを(タテ25cm×ヨコ10cm×厚さ3cm)に裁断して試験片を得た。試験片を20℃、50%RH(相対湿度)の室内に載置し、24時間、温度調節した。
試験片の上部から、50cmの高さから直径2cmのアルミニウム球を落下させて、最も反発した時の試験片からアルミニウム球の底部までの距離を測定し、反発した距離をL20とした。
また、試験片を-20℃、50%RHの室内に載置し、24時間温度調節したのちに同様の試験を行い、反発した距離をL-20とした。
上記で測定したL20と、L-20とから、下記式でソール反発の温度依存性を算出し、以下の評価基準で評価した。
(ソール反発の温度依存性)=L-20×100/L20
◎:90以上
〇:80以上、90未満
△:70以上、80未満
×:70未満
EVA樹脂:三井化学(株)製、商品名「エバフレックス270」
架橋剤:ジクミルパーオキサイド(DCP)[日油(株)製、商品名「パークミルD」]
発泡剤(C-1):アゾジカルボンアミド[永和化成工業(株)製、商品名「ビニホールDW♯6」]
Claims (11)
- ポリアミド(am)のブロックと、炭素数3~4のアルキレングリコールを構成単量体として含むポリアルキレングリコール(b)のブロックとを構成単位とするシューズソール用ブロックポリマー(X)であって、架橋剤(K)とポリアルキレングリコール(b)のブロックとが結合した架橋構造を有するシューズソール用ブロックポリマー(X)。
- 前記ポリアミド(am)のブロックの数平均分子量が、500~5,000である請求項1記載のシューズソール用ブロックポリマー(X)。
- 前記ポリアルキレングリコール(b)のブロックの数平均分子量が、500~4,000である請求項1記載のシューズソール用ブロックポリマー(X)。
- 前記ポリアミド(am)のブロックと前記ポリアルキレングリコール(b)のブロックとの重量比[(am)/(b)]が15/85~90/10である請求項1記載のシューズソール用ブロックポリマー(X)。
- 前記架橋剤(K)とポリアルキレングリコール(b)のブロックとが3個以上のエステル結合及び/又はアミド結合を介して結合している請求項1記載のシューズソール用ブロックポリマー(X)。
- 数平均分子量が10,000~150,000である請求項1記載のシューズソール用ブロックポリマー(X)。
- 請求項1~6のいずれか記載のシューズソール用ブロックポリマー(X)と前記シューズソール用ブロックポリマー(X)以外の熱可塑性樹脂(E)とを含有するシューズソール用樹脂組成物(Y)。
- 請求項1~6のいずれか記載のシューズソール用ブロックポリマー(X)の発泡成形体であるシューズソール(Z)。
- 請求項7記載のシューズソール用樹脂組成物(Y)の発泡成形体であるシューズソール(Z)。
- 密度が0.20~0.90g/cm3である請求項8記載のシューズソール(Z)。
- 密度が0.20~0.90g/cm3である請求項9記載のシューズソール(Z)。
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Citations (6)
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JPS62285920A (ja) * | 1986-06-04 | 1987-12-11 | Mitsui Petrochem Ind Ltd | 改質されたポリアミド系エラストマ−および製法 |
JP2004352789A (ja) * | 2003-05-27 | 2004-12-16 | Ube Ind Ltd | 樹脂組成物及び成形物 |
WO2005032817A1 (ja) * | 2003-10-03 | 2005-04-14 | Daicel-Degussa Ltd. | 複合成形体及びその製造方法、並びに接合用樹脂 |
JP2008093412A (ja) | 2006-10-16 | 2008-04-24 | Stilflex Srl | スポーツシューズ用インソール |
WO2011027703A1 (ja) * | 2009-09-04 | 2011-03-10 | 宇部興産株式会社 | ポリエーテルポリアミドエラストマー及びポリアミド積層体 |
JP2020506275A (ja) * | 2017-02-08 | 2020-02-27 | アルケマ フランス | ポリアミドブロックとポリエーテルブロックとを有する非架橋性共重合体の発泡性組成物 |
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JPS62285920A (ja) * | 1986-06-04 | 1987-12-11 | Mitsui Petrochem Ind Ltd | 改質されたポリアミド系エラストマ−および製法 |
JP2004352789A (ja) * | 2003-05-27 | 2004-12-16 | Ube Ind Ltd | 樹脂組成物及び成形物 |
WO2005032817A1 (ja) * | 2003-10-03 | 2005-04-14 | Daicel-Degussa Ltd. | 複合成形体及びその製造方法、並びに接合用樹脂 |
JP2008093412A (ja) | 2006-10-16 | 2008-04-24 | Stilflex Srl | スポーツシューズ用インソール |
WO2011027703A1 (ja) * | 2009-09-04 | 2011-03-10 | 宇部興産株式会社 | ポリエーテルポリアミドエラストマー及びポリアミド積層体 |
JP2020506275A (ja) * | 2017-02-08 | 2020-02-27 | アルケマ フランス | ポリアミドブロックとポリエーテルブロックとを有する非架橋性共重合体の発泡性組成物 |
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