JP6531467B2 - ゴルフボール - Google Patents
ゴルフボール Download PDFInfo
- Publication number
- JP6531467B2 JP6531467B2 JP2015071842A JP2015071842A JP6531467B2 JP 6531467 B2 JP6531467 B2 JP 6531467B2 JP 2015071842 A JP2015071842 A JP 2015071842A JP 2015071842 A JP2015071842 A JP 2015071842A JP 6531467 B2 JP6531467 B2 JP 6531467B2
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- Japan
- Prior art keywords
- resin
- component
- resin composition
- less
- golf ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920005989 resin Polymers 0.000 claims description 222
- 239000011347 resin Substances 0.000 claims description 222
- 239000011342 resin composition Substances 0.000 claims description 99
- 150000007934 α,β-unsaturated carboxylic acids Chemical class 0.000 claims description 63
- 229920001577 copolymer Polymers 0.000 claims description 48
- 150000001336 alkenes Chemical class 0.000 claims description 47
- 125000004432 carbon atom Chemical group C* 0.000 claims description 40
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 39
- 229920006122 polyamide resin Polymers 0.000 claims description 36
- 229910021645 metal ion Inorganic materials 0.000 claims description 32
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 30
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 26
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 22
- 229920001897 terpolymer Polymers 0.000 claims description 21
- 238000005452 bending Methods 0.000 claims description 15
- 239000002253 acid Substances 0.000 claims description 6
- 239000010410 layer Substances 0.000 description 186
- 229920000554 ionomer Polymers 0.000 description 77
- 239000000203 mixture Substances 0.000 description 38
- 229920001971 elastomer Polymers 0.000 description 32
- -1 undecane lactam Chemical class 0.000 description 31
- 239000000047 product Substances 0.000 description 26
- 229920006027 ternary co-polymer Polymers 0.000 description 25
- 239000011701 zinc Substances 0.000 description 21
- 229910052751 metal Inorganic materials 0.000 description 20
- 239000002184 metal Substances 0.000 description 20
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 19
- 230000000694 effects Effects 0.000 description 19
- 238000000465 moulding Methods 0.000 description 19
- 239000011734 sodium Substances 0.000 description 19
- 239000005060 rubber Substances 0.000 description 18
- 239000000463 material Substances 0.000 description 17
- 150000003839 salts Chemical class 0.000 description 17
- 235000014113 dietary fatty acids Nutrition 0.000 description 15
- 239000000194 fatty acid Substances 0.000 description 15
- 229930195729 fatty acid Natural products 0.000 description 15
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 14
- 239000000806 elastomer Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 11
- 239000005977 Ethylene Substances 0.000 description 11
- 238000000748 compression moulding Methods 0.000 description 11
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 10
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 10
- 150000004760 silicates Chemical class 0.000 description 10
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 9
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 9
- 239000011777 magnesium Substances 0.000 description 9
- 238000006386 neutralization reaction Methods 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 150000001733 carboxylic acid esters Chemical class 0.000 description 8
- 229910052725 zinc Inorganic materials 0.000 description 8
- 150000004665 fatty acids Chemical class 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 7
- 239000004953 Aliphatic polyamide Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 229920003298 Nucrel® Polymers 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 6
- 229920003231 aliphatic polyamide Polymers 0.000 description 6
- 238000005341 cation exchange Methods 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 description 6
- 229910052902 vermiculite Inorganic materials 0.000 description 6
- 239000010455 vermiculite Substances 0.000 description 6
- 235000019354 vermiculite Nutrition 0.000 description 6
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
- 229920002292 Nylon 6 Polymers 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 5
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 150000001768 cations Chemical class 0.000 description 5
- 239000003431 cross linking reagent Substances 0.000 description 5
- 229920005648 ethylene methacrylic acid copolymer Polymers 0.000 description 5
- 229910052618 mica group Inorganic materials 0.000 description 5
- 239000003607 modifier Substances 0.000 description 5
- 150000004010 onium ions Chemical class 0.000 description 5
- 229920002647 polyamide Polymers 0.000 description 5
- 229920000098 polyolefin Polymers 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 229920001169 thermoplastic Polymers 0.000 description 5
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 5
- 239000004416 thermosoftening plastic Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910001868 water Inorganic materials 0.000 description 5
- 239000011787 zinc oxide Substances 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 4
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 4
- 229920000571 Nylon 11 Polymers 0.000 description 4
- 229920000299 Nylon 12 Polymers 0.000 description 4
- 229920002302 Nylon 6,6 Polymers 0.000 description 4
- 239000004793 Polystyrene Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 125000001931 aliphatic group Chemical group 0.000 description 4
- 239000004760 aramid Substances 0.000 description 4
- 229920003235 aromatic polyamide Polymers 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000013329 compounding Methods 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 239000003999 initiator Substances 0.000 description 4
- 238000005342 ion exchange Methods 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- 229910052901 montmorillonite Inorganic materials 0.000 description 4
- 150000002898 organic sulfur compounds Chemical class 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 229920002223 polystyrene Polymers 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 229910000275 saponite Inorganic materials 0.000 description 4
- 229920006012 semi-aromatic polyamide Polymers 0.000 description 4
- 229920006132 styrene block copolymer Polymers 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 4
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 3
- WWZKQHOCKIZLMA-UHFFFAOYSA-N Caprylic acid Natural products CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 3
- GUUVPOWQJOLRAS-UHFFFAOYSA-N Diphenyl disulfide Chemical class C=1C=CC=CC=1SSC1=CC=CC=C1 GUUVPOWQJOLRAS-UHFFFAOYSA-N 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000003712 anti-aging effect Effects 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 3
- 239000001055 blue pigment Substances 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
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- 239000013078 crystal Substances 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000004611 light stabiliser Substances 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 150000002736 metal compounds Chemical class 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- PZRHRDRVRGEVNW-UHFFFAOYSA-N milrinone Chemical compound N1C(=O)C(C#N)=CC(C=2C=CN=CC=2)=C1C PZRHRDRVRGEVNW-UHFFFAOYSA-N 0.000 description 3
- 229960003574 milrinone Drugs 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000012463 white pigment Substances 0.000 description 3
- PXGZQGDTEZPERC-UHFFFAOYSA-N 1,4-cyclohexanedicarboxylic acid Chemical compound OC(=O)C1CCC(C(O)=O)CC1 PXGZQGDTEZPERC-UHFFFAOYSA-N 0.000 description 2
- PBLZLIFKVPJDCO-UHFFFAOYSA-N 12-aminododecanoic acid Chemical compound NCCCCCCCCCCCC(O)=O PBLZLIFKVPJDCO-UHFFFAOYSA-N 0.000 description 2
- SDJHPPZKZZWAKF-UHFFFAOYSA-N 2,3-dimethylbuta-1,3-diene Chemical compound CC(=C)C(C)=C SDJHPPZKZZWAKF-UHFFFAOYSA-N 0.000 description 2
- YCGKJPVUGMBDDS-UHFFFAOYSA-N 3-(6-azabicyclo[3.1.1]hepta-1(7),2,4-triene-6-carbonyl)benzamide Chemical compound NC(=O)C1=CC=CC(C(=O)N2C=3C=C2C=CC=3)=C1 YCGKJPVUGMBDDS-UHFFFAOYSA-N 0.000 description 2
- WRDNCFQZLUCIRH-UHFFFAOYSA-N 4-(7-azabicyclo[2.2.1]hepta-1,3,5-triene-7-carbonyl)benzamide Chemical compound C1=CC(C(=O)N)=CC=C1C(=O)N1C2=CC=C1C=C2 WRDNCFQZLUCIRH-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000005063 High cis polybutadiene Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 229920000305 Nylon 6,10 Polymers 0.000 description 2
- 229920000572 Nylon 6/12 Polymers 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 125000002723 alicyclic group Chemical group 0.000 description 2
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- YZXBAPSDXZZRGB-DOFZRALJSA-N arachidonic acid Chemical compound CCCCC\C=C/C\C=C/C\C=C/C\C=C/CCCC(O)=O YZXBAPSDXZZRGB-DOFZRALJSA-N 0.000 description 2
- 150000004984 aromatic diamines Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- VNSBYDPZHCQWNB-UHFFFAOYSA-N calcium;aluminum;dioxido(oxo)silane;sodium;hydrate Chemical compound O.[Na].[Al].[Ca+2].[O-][Si]([O-])=O VNSBYDPZHCQWNB-UHFFFAOYSA-N 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 150000004985 diamines Chemical class 0.000 description 2
- 150000001993 dienes Chemical group 0.000 description 2
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 2
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- TVIDDXQYHWJXFK-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O TVIDDXQYHWJXFK-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000001530 fumaric acid Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- KWLMIXQRALPRBC-UHFFFAOYSA-L hectorite Chemical compound [Li+].[OH-].[OH-].[Na+].[Mg+2].O1[Si]2([O-])O[Si]1([O-])O[Si]([O-])(O1)O[Si]1([O-])O2 KWLMIXQRALPRBC-UHFFFAOYSA-L 0.000 description 2
- 229910000271 hectorite Inorganic materials 0.000 description 2
- KEMQGTRYUADPNZ-UHFFFAOYSA-N heptadecanoic acid Chemical compound CCCCCCCCCCCCCCCCC(O)=O KEMQGTRYUADPNZ-UHFFFAOYSA-N 0.000 description 2
- XMHIUKTWLZUKEX-UHFFFAOYSA-N hexacosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O XMHIUKTWLZUKEX-UHFFFAOYSA-N 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 2
- 229910052622 kaolinite Inorganic materials 0.000 description 2
- CYPPCCJJKNISFK-UHFFFAOYSA-J kaolinite Chemical compound [OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3].[O-][Si](=O)O[Si]([O-])=O CYPPCCJJKNISFK-UHFFFAOYSA-J 0.000 description 2
- 150000003951 lactams Chemical class 0.000 description 2
- 229910052629 lepidolite Inorganic materials 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
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- ZGEGCLOFRBLKSE-UHFFFAOYSA-N methylene hexane Natural products CCCCCC=C ZGEGCLOFRBLKSE-UHFFFAOYSA-N 0.000 description 2
- 229910052627 muscovite Inorganic materials 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical compound CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 2
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- 150000001451 organic peroxides Chemical class 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- SECPZKHBENQXJG-FPLPWBNLSA-N palmitoleic acid Chemical compound CCCCCC\C=C/CCCCCCCC(O)=O SECPZKHBENQXJG-FPLPWBNLSA-N 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- 229910052628 phlogopite Inorganic materials 0.000 description 2
- 229920006111 poly(hexamethylene terephthalamide) Polymers 0.000 description 2
- 229920006128 poly(nonamethylene terephthalamide) Polymers 0.000 description 2
- 229920003225 polyurethane elastomer Polymers 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 150000004671 saturated fatty acids Chemical class 0.000 description 2
- 235000003441 saturated fatty acids Nutrition 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 238000010112 shell-mould casting Methods 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- SFVFIFLLYFPGHH-UHFFFAOYSA-M stearalkonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 SFVFIFLLYFPGHH-UHFFFAOYSA-M 0.000 description 2
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 description 2
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- 239000006097 ultraviolet radiation absorber Substances 0.000 description 2
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- PDSVZUAJOIQXRK-UHFFFAOYSA-N trimethyl(octadecyl)azanium Chemical compound CCCCCCCCCCCCCCCCCC[N+](C)(C)C PDSVZUAJOIQXRK-UHFFFAOYSA-N 0.000 description 1
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- 229910052721 tungsten Inorganic materials 0.000 description 1
- KLNPWTHGTVSSEU-UHFFFAOYSA-N undecane-1,11-diamine Chemical compound NCCCCCCCCCCCN KLNPWTHGTVSSEU-UHFFFAOYSA-N 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
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Images
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Description
まず、前記第一樹脂組成物について説明する。前記第一樹脂組成物は、樹脂成分として、(A)ポリアミド樹脂と、(B)(b−1)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸との二元共重合体、(b−2)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸との二元共重合体の金属イオン中和物、(b−3)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸とα,β−不飽和カルボン酸エステルとの三元共重合体、および、(b−4)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸とα,β−不飽和カルボン酸エステルとの三元共重合体の金属イオン中和物より成る群から選択される少なくとも1種と、(C)前記(A)成分および前記(B)成分とは異なる熱可塑性エラストマーとを含有し、曲げ弾性率(MPa)とスラブ硬度(ショアD硬度)との比(曲げ弾性率/スラブ硬度)が3〜5である。
前記(A)成分として使用されるポリアミド樹脂は、主鎖にアミド結合(−NH−CO−)を複数有する重合体であれば特に限定されない。前記ポリアミド樹脂としては、例えば、ラクタムの開環重合、アミノ酸の縮合反応、ジアミン成分とジカルボン酸成分との縮合反応により、アミド結合が分子内に形成された生成物が挙げられる。
X={dc(d−da)}/{d(dc−da)}
ここで、dc:結晶質の密度、da:非晶質の密度、d:試料の密度
前記(B)成分は、(b−1)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸との二元共重合体(以下、「(b−1)二元共重合体」と称する場合がある。)、(b−2)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸との二元共重合体の金属イオン中和物(以下、「(b−2)二元系アイオノマー樹脂」と称する場合がある。)、(b−3)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸とα,β−不飽和カルボン酸エステルとの三元共重合体(以下、「(b−3)三元共重合体」と称する場合がある。)、および、(b−4)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸とα,β−不飽和カルボン酸エステルとの三元共重合体の金属イオン中和物(以下、「(b−4)三元系アイオノマー樹脂」と称する場合がある。)より成る群から選択される少なくとも1種を含有する。なお、前記(b−1)二元共重合体、(b−2)二元系アイオノマー樹脂、(b−3)三元共重合体、および、(b−4)三元系アイオノマー樹脂は、それぞれ単独または二種以上を組み合わせて使用しても良い。
アイオノマー樹脂の中和度(モル%)=100×アイオノマー樹脂中の中和されているカルボキシル基のモル数/アイオノマー樹脂中のカルボキシル基の総モル数
前記(C)成分は、前記(A)ポリアミド樹脂、並びに、前記(B)成分としての(b−1)二元共重合体、(b−2)二元系アイオノマー樹脂、(b−3)三元共重合体および(b−4)三元系アイオノマー樹脂とは異なる熱可塑性エラストマーである。
次に、前記第二樹脂組成物について説明する。前記第二樹脂組成物は、樹脂成分として、(D)ポリアミド樹脂と、(E)(e−1)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸との二元共重合体、(e−2)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸との二元共重合体の金属イオン中和物、(e−3)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸とα,β−不飽和カルボン酸エステルとの三元共重合体、および、(e−4)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸とα,β−不飽和カルボン酸エステルとの三元共重合体の金属イオン中和物より成る群から選択される少なくとも1種とを含有する第二樹脂組成物から形成されている。
前記(D)成分としては、前記第一樹脂組成物に使用される(A)ポリアミド樹脂と同様のポリアミド樹脂が挙げられる。
前記(E)成分は、(e−1)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸との二元共重合体(以下、「(e−1)二元共重合体」と称する場合がある。)、(e−2)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸との二元共重合体の金属イオン中和物(以下、「(e−2)二元系アイオノマー樹脂」と称する場合がある。)、(e−3)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸とα,β−不飽和カルボン酸エステルとの三元共重合体(以下、「(e−3)三元共重合体」と称する場合がある。)、および、(e−4)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸とα,β−不飽和カルボン酸エステルとの三元共重合体の金属イオン中和物(以下、「(e−4)三元系アイオノマー樹脂」と称する場合がある。)より成る群から選択される少なくとも1種を含有する。なお、前記(e−1)二元共重合体、(e−2)二元系アイオノマー樹脂、(e−3)三元共重合体、および、(e−4)三元系アイオノマー樹脂は、それぞれ単独または二種以上を組み合わせて使用しても良い。
本発明のゴルフボールは、球状コアと、前記コアを被覆する2層以上の包囲層とを有し、前記包囲層が、少なくとも1層の第一樹脂層と、少なくとも1層の第二樹脂層とを有する。前記包囲層とは、いわゆる中間層およびカバー層である。
樹脂組成物を用いて、射出成形により、厚み約2mmのシートを作製し、23℃で2週間保存した。このシートを、測定基板などの影響が出ないように、3枚以上重ねた状態で、スプリング式硬度計ショアD型を備えた高分子計器社製自動ゴム硬度計P1型を用いて測定した。
樹脂組成物の曲げ弾性率はISO178(2001)に準じて測定した。具体的には、樹脂組成物を用いて、射出成形により、長さ80.0±2mm、幅10.0±0.2mm、厚み4.0±0.2mmの試験片を作製し、直ちに防湿容器中で23℃±2℃で24時間以上保持した。この試験片を防湿容器から取り出した後、速やか(15分以内)に、精密万能試験機(島津製作所製、オートグラフ(登録商標))を用いて、曲げ試験を行った。圧子の半径を5.0mm、支持台の半径を2mm、支点間距離を64mm、試験速度2mm/min、試験温度23℃、湿度50%RHとした。そして、下記式により曲げ弾性率を算出した。
曲げ弾性率=(σf2−σf1)/(0.0025−0.0005)
[式中、σf1は、ひずみ0.0005に対応する応力、σf2はひずみ0.0025に対応する応力を表す。]
ゴルフボールに初期荷重98Nを負荷した状態から終荷重1275Nを負荷したときまでの圧縮方向の変形量(圧縮方向にゴルフボールが縮む量)を測定した。
ゴルフラボラトリー社製のスイングロボットM/Cに、メタルヘッド製W#1ドライバー(ダンロップスポーツ社製、XXIO S ロフト10.5°)を取り付け、ヘッドスピード50m/秒でゴルフボールを打撃し、スピン速度、ならびに飛距離(発射始点から静止地点までの距離)を測定した。測定は、各ゴルフボールについて12回ずつ行って、その平均値をそのゴルフボールの測定値とした。なお、打撃直後のゴルフボールのスピン速度は、打撃されたゴルフボールを連続写真撮影することによって測定した。
アマチュアゴルファー(上級者)10人により、メタルヘッド製W#1ドライバー(ダンロップスポーツ社製、XXIO S ロフト10.5°)を用いた実打テストを行った。各ゴルファーに打球感を採点させ、その平均値を求めた。なお、採点は、最も打球感が良い場合を5.0点、最も打球感が悪い場合を0点とした。
Na型モンモリロナイト(クニミネ工業:クニピアF、陽イオン交換容量120m当量/100g)100gを温水10リットルに撹拌分散し、ここにベンジルジメチルオクタデシルアンモニウムクロライド51g(陽イオン交換容量と等量)を溶解させた温水2Lを添加して1時間撹拌した。生じた沈殿を濾別した後、温水で洗浄した。この洗浄と濾別の操作を3回行い、得られた固体を80℃で真空乾燥して、乾燥した有機化層状珪酸塩を得た。メタノールで5時間ソックスレー抽出をして、有機化層状珪酸塩中に含まれるベンジルジメチルオクタデシルアンモニウムクロライドを定量したところ、有機化層状珪酸塩の0.1質量%以下であることが分かった。
表1、表2に示した配合材料を、二軸混練型押出機により押し出して、ペレット状のゴルフボール用樹脂組成物を調製した。押出は、スクリュー径45mm、スクリュー回転数200rpm、スクリューL/D35で行った。配合物は、押出機のダイの位置で160〜230℃に加熱された。
ポリアミド6:東レ社製、アミラン(登録商標)CM1017K(結晶化度:7%、相対粘度:2.65、MFR(260℃×325g荷重):8.27g/min、曲げ弾性率:3.1GPa(23℃絶乾)、ショアD硬度:65〜90)
ハイミランAM7329:三井・デュポン・ポリケミカル社製、亜鉛イオン中和エチレン−メタクリル酸共重合体アイオノマー樹脂(MFR(190℃×2.16kg荷重):5g/10min、曲げ弾性率:240MPa、ショアD硬度:62)
ハイミランAM7337:三井・デュポン・ポリケミカル社製、ナトリウムイオン中和エチレン−メタクリル酸共重合体アイオノマー樹脂(MFR(190℃×2.16kg荷重):5g/10min、曲げ弾性率:254MPa、ショアD硬度:64)
サーリン9150:デュポン社製、亜鉛イオン中和エチレン−メタクリル酸共重合体アイオノマー樹脂(酸成分含有率:17質量%以上、MFR(190℃×2.16kg荷重):4.5g/10min、曲げ弾性率:270MPa、ショアD硬度:64)
サーリン8150:デュポン社製、ナトリウムイオン中和エチレン−メタクリル酸共重合体アイオノマー樹脂(酸成分含有率:17質量%以上、MFR(190℃×2.16kg荷重):4.5g/10min、曲げ弾性率:390MPa、ショアD硬度:68)
ニュクレルN1050H:三井・デュポン・ポリケミカル社製、エチレン−メタクリル酸共重合体
ラバロンT3221C:三菱化学社製、熱可塑性スチレンエラストマー(SBS、SIS、SIBS、SEBS、SEPS及びSEEPS、並びに、これらの水添物からなる群から選択された1種又は2種以上と、ポリオレフィンとのアロイ)(曲げ弾性率:1〜160MPa、ショアD硬度:3〜50)
プリマロイA1400:三菱化学社製、熱可塑性ポリエステルエラストマー(曲げ弾性率:1〜160MPa、ショアD硬度:3〜50)
(1)コアの作製
表3に示す配合のゴム組成物を混練し、半球状キャビティを有する上下金型内で、170℃で30分間加熱プレスすることによりコアを得た。
アクリル酸亜鉛:日本蒸溜工業社製、「ZNDA−90S」
酸化亜鉛:東邦亜鉛社製、「銀嶺(登録商標)R」
ジフェニルジスルフィド:住友精化社製、ジフェニルジスルフィド
ジクミルパーオキサイド:日油社製、「パークミル(登録商標)D(ジクミルパーオキサイド)」
硫酸バリウム:堺化学社製、「硫酸バリウムBD」
前記ゴルフボール用樹脂組成物を上述のようにして得られたコア上に射出成形して、内中間層(厚み:1.0mm)を成形した。また、前記ゴルフボール用樹脂組成物を上述のようにして得られた内中間層上に射出成形して、外中間層(厚み:1.0mm)を成形した。
表4に示したポリウレタンエラストマー100質量部に対して酸化チタン4質量部をドライブレンドし、二軸混練型押出機によりミキシングして、ペレット状のカバー用組成物を得た。押出は、スクリュー径45mm、スクリュー回転数200rpm、スクリューL/D=35で行った。配合物は、押出機のダイの位置で150〜230℃に加熱された。ハーフシェルの圧縮成形は、得られたペレット状のカバー用組成物をハーフシェル成形用金型の下型の凹部ごとに1つずつ投入し、加圧してハーフシェルを成形した。圧縮成形は、成形温度170℃、成形時間5分、成形圧力2.94MPaの条件で行った。
(2)で得られた中間層を(3)で得られた2枚のハーフシェルで同心円状に被覆して、圧縮成形によりカバー(厚み0.5mm)を成形した。圧縮成形は、成形温度145℃、成形時間2分、成形圧力9.8MPaの条件で行った。得られたゴルフボール本体の表面をサンドブラスト処理して、マーキングを施した後、クリアーペイントを塗布し、40℃のオーブンで塗料を乾燥させ、ゴルフボールを得た。得られたゴルフボールついて評価した結果を表4、5に示した。
Claims (13)
- 球状コアと、前記球状コアを被覆する2層以上の包囲層とを有し、
前記包囲層が、少なくとも1層の第一樹脂層と、少なくとも1層の第二樹脂層とを有し、
前記第一樹脂層が、樹脂成分として、(A)ポリアミド樹脂と、(B)(b−1)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸との二元共重合体、(b−2)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸との二元共重合体の金属イオン中和物、(b−3)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸とα,β−不飽和カルボン酸エステルとの三元共重合体、および、(b−4)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸とα,β−不飽和カルボン酸エステルとの三元共重合体の金属イオン中和物より成る群から選択される少なくとも1種と、(C)前記(A)成分および前記(B)成分とは異なる熱可塑性エラストマーとを含有し、曲げ弾性率(MPa)とスラブ硬度(ショアD硬度)との比(曲げ弾性率/スラブ硬度)が3〜5である第一樹脂組成物から形成されており、
前記第二樹脂層が、樹脂成分として、(D)ポリアミド樹脂と、(E)(e−1)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸との二元共重合体、(e−2)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸との二元共重合体の金属イオン中和物、(e−3)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸とα,β−不飽和カルボン酸エステルとの三元共重合体、および、(e−4)オレフィンと炭素数3〜8個のα,β−不飽和カルボン酸とα,β−不飽和カルボン酸エステルとの三元共重合体の金属イオン中和物より成る群から選択される少なくとも1種とを含有する第二樹脂組成物から形成されており、
前記第一樹脂層を形成する第一樹脂組成物の曲げ弾性率と前記第二樹脂層を形成する第二樹脂組成物の曲げ弾性率との差(第二樹脂組成物−第一樹脂組成物)が、300MPa〜900MPaであることを特徴とするゴルフボール。 - 前記第一樹脂組成物は、スラブ硬度(ショアD硬度)と曲げ弾性率(MPa)との積と、樹脂成分中の(A)成分の含有率(質量%)との比(スラブ硬度×曲げ弾性率/(A)成分含有率)が、1050以下である請求項1に記載のゴルフボール。
- 前記第一樹脂組成物のスラブ硬度が、ショアD硬度で、45〜65である請求項1または2に記載のゴルフボール。
- 前記第一樹脂組成物の曲げ弾性率が、130MPa〜400MPaである請求項1〜3のいずれか一項に記載のゴルフボール。
- 前記第一樹脂組成物中の前記(A)成分、(B)成分および(C)成分の質量比((A):(B):(C))が、10〜60:5〜80:5〜50((A)成分、(B)成分および(C)成分の合計を100とする)である請求項1〜4のいずれか一項に記載のゴルフボール。
- 前記第一樹脂組成物の前記(C)成分が、スチレン系熱可塑性エラストマーを含有する請求項1〜5のいずれか一項に記載のゴルフボール。
- 前記第二樹脂組成物が、さらに(F)有機化層状珪酸塩を含有する請求項1〜6のいずれか一項に記載のゴルフボール。
- 前記第二樹脂組成物中の前記(D)成分および(E)成分の質量比((D):(E))が、15〜80:85〜20((D)成分および(E)成分の合計を100とする)である請求項1〜7のいずれか一項に記載のゴルフボール。
- 前記第二樹脂組成物のスラブ硬度が、ショアD硬度で、65〜80である請求項1〜8のいずれか一項に記載のゴルフボール。
- 前記第二樹脂組成物の曲げ弾性率が、400MPa〜4000MPaである請求項1〜9のいずれか一項に記載のゴルフボール。
- 球状コアと、前記球状コアの外側に配置される内中間層と、前記内中間層の外側に配置される外中間層と、前記外中間層の外側に配置されるカバーとを有し、
前記内中間層が、前記第一樹脂組成物から形成された前記第一樹脂層であり、
前記外中間層が、前記第二樹脂組成物から形成された前記第二樹脂層である請求項1〜10のいずれか一項に記載のゴルフボール。 - 球状コアと、前記球状コアの外側に配置される内中間層と、前記内中間層の外側に配置される外中間層と、前記外中間層の外側に配置されるカバーとを有し、
前記内中間層が、前記第二樹脂組成物から形成された前記第二樹脂層であり、
前記外中間層が、前記第一樹脂組成物から形成された前記第一樹脂層である請求項1〜10のいずれか一項に記載のゴルフボール。 - 前記第一樹脂層を形成する第一樹脂組成物のスラブ硬度と前記第二樹脂層を形成する第二樹脂組成物のスラブ硬度との差(第二樹脂組成物−第一樹脂組成物)が、ショアD硬度で、12〜25である請求項1〜12のいずれか一項に記載のゴルフボール。
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