JP2016013195A - ゴルフボール - Google Patents
ゴルフボール Download PDFInfo
- Publication number
- JP2016013195A JP2016013195A JP2014135408A JP2014135408A JP2016013195A JP 2016013195 A JP2016013195 A JP 2016013195A JP 2014135408 A JP2014135408 A JP 2014135408A JP 2014135408 A JP2014135408 A JP 2014135408A JP 2016013195 A JP2016013195 A JP 2016013195A
- Authority
- JP
- Japan
- Prior art keywords
- mass
- golf ball
- olefin
- core
- meth
- 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.)
- Granted
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 81
- 239000005060 rubber Substances 0.000 claims abstract description 79
- 239000000203 mixture Substances 0.000 claims abstract description 69
- 229920001577 copolymer Polymers 0.000 claims abstract description 47
- 238000004132 cross linking Methods 0.000 claims abstract description 17
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 14
- 239000003999 initiator Substances 0.000 claims abstract description 12
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 5
- 229920006225 ethylene-methyl acrylate Polymers 0.000 claims description 4
- QYMGIIIPAFAFRX-UHFFFAOYSA-N butyl prop-2-enoate;ethene Chemical compound C=C.CCCCOC(=O)C=C QYMGIIIPAFAFRX-UHFFFAOYSA-N 0.000 claims description 3
- 229920006245 ethylene-butyl acrylate Polymers 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 25
- 229920005989 resin Polymers 0.000 description 23
- 239000011347 resin Substances 0.000 description 23
- 229910052751 metal Chemical class 0.000 description 22
- 239000002184 metal Chemical class 0.000 description 22
- 150000003839 salts Chemical class 0.000 description 20
- 239000011701 zinc Substances 0.000 description 16
- 229920000554 ionomer Polymers 0.000 description 14
- 150000007934 α,β-unsaturated carboxylic acids Chemical class 0.000 description 14
- 125000004432 carbon atom Chemical group C* 0.000 description 13
- 238000000465 moulding Methods 0.000 description 13
- 239000011734 sodium Substances 0.000 description 13
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 12
- 238000004898 kneading Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 12
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- 229920003182 Surlyn® Polymers 0.000 description 11
- 230000000694 effects Effects 0.000 description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 239000011777 magnesium Substances 0.000 description 9
- 229940114077 acrylic acid Drugs 0.000 description 8
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- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 7
- 229910021645 metal ion Inorganic materials 0.000 description 7
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- 239000012463 white pigment Substances 0.000 description 7
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 6
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical group C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 238000000748 compression moulding Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 239000002356 single layer Substances 0.000 description 6
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical class CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 5
- 150000001336 alkenes Chemical class 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 5
- 239000011787 zinc oxide Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- 239000001055 blue pigment Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 150000001451 organic peroxides Chemical class 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 229920002554 vinyl polymer Polymers 0.000 description 4
- ZEYHEAKUIGZSGI-UHFFFAOYSA-N 4-methoxybenzoic acid Chemical compound COC1=CC=C(C(O)=O)C=C1 ZEYHEAKUIGZSGI-UHFFFAOYSA-N 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-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
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000001530 fumaric acid Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 3
- 239000011976 maleic acid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229920001897 terpolymer Polymers 0.000 description 3
- XKMZOFXGLBYJLS-UHFFFAOYSA-L zinc;prop-2-enoate Chemical compound [Zn+2].[O-]C(=O)C=C.[O-]C(=O)C=C XKMZOFXGLBYJLS-UHFFFAOYSA-L 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 206010000496 acne Diseases 0.000 description 2
- 229940048053 acrylate Drugs 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 2
- 125000000217 alkyl group Chemical group 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
- 230000003712 anti-aging effect Effects 0.000 description 2
- 229910052788 barium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 150000001868 cobalt Chemical class 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 2
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 2
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- ZGEGCLOFRBLKSE-UHFFFAOYSA-N methylene hexane Natural products CCCCCC=C ZGEGCLOFRBLKSE-UHFFFAOYSA-N 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
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- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000001057 purple pigment Substances 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 229920006027 ternary co-polymer Polymers 0.000 description 2
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 2
- 150000003752 zinc compounds Chemical class 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- NALFRYPTRXKZPN-UHFFFAOYSA-N 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane Chemical compound CC1CC(C)(C)CC(OOC(C)(C)C)(OOC(C)(C)C)C1 NALFRYPTRXKZPN-UHFFFAOYSA-N 0.000 description 1
- LGXISKQYIKXYTC-UHFFFAOYSA-N 1,2,3,4,5-pentabromo-6-[(2,3,4,5,6-pentabromophenyl)disulfanyl]benzene Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1SSC1=C(Br)C(Br)=C(Br)C(Br)=C1Br LGXISKQYIKXYTC-UHFFFAOYSA-N 0.000 description 1
- ULKSDPXEXXZFQY-UHFFFAOYSA-N 1,3-dibromo-2-[(2,6-dibromophenyl)disulfanyl]benzene Chemical compound BrC1=CC=CC(Br)=C1SSC1=C(Br)C=CC=C1Br ULKSDPXEXXZFQY-UHFFFAOYSA-N 0.000 description 1
- LSMZVCLPPFOFNM-UHFFFAOYSA-N 1,3-dichloro-2-[(2,6-dichlorophenyl)disulfanyl]benzene Chemical compound ClC1=CC=CC(Cl)=C1SSC1=C(Cl)C=CC=C1Cl LSMZVCLPPFOFNM-UHFFFAOYSA-N 0.000 description 1
- CCFAKBRKTKVJPO-UHFFFAOYSA-N 1-anthroic acid Chemical compound C1=CC=C2C=C3C(C(=O)O)=CC=CC3=CC2=C1 CCFAKBRKTKVJPO-UHFFFAOYSA-N 0.000 description 1
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- JBISHCXLCGVPGW-UHFFFAOYSA-N 2,6-dichlorobenzenethiol Chemical compound SC1=C(Cl)C=CC=C1Cl JBISHCXLCGVPGW-UHFFFAOYSA-N 0.000 description 1
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- 229920003307 DuPont™ Surlyn® 8150 Polymers 0.000 description 1
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Abstract
【解決手段】ゴルフボールは、球状コア4と球状コア4を被覆する少なくとも一層のカバー12とを有し、球状コア12の少なくとも一部が、(a)基材ゴム、(b)共架橋剤、(c)架橋開始剤および(x)オレフィン−(メタ)アクリル酸アルキルエステル共重合体を含有するゴム組成物から形成されており、前記ゴム組成物中の前記(x)オレフィン−(メタ)アクリル酸アルキルエステル共重合体の含有量が、(a)基剤ゴム100質量部に対して0.5質量部〜7.0質量部である。
【選択図】図1
Description
(1)コア硬度分布(JIS−C硬度)
スプリング式硬度計JIS−C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、コアの表面部において測定したJIS−C硬度をコア表面硬度とした。また、コアを半球状に切断し、切断面の中心において硬度を測定した。
コアに初期荷重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(圧縮方向にコアが縮む量)を測定した。
各コアに198.4gの金属製円筒物を40m/秒の速度で衝突させ、衝突前後の前記円筒物およびコアの速度を測定し、それぞれの速度および質量から各コアの反発係数を算出した。測定は各コアについて12個ずつ行って、その平均値をそのコアの反発係数とした。なお、各コアの反発係数は、コアNo.1の反発係数との差で示した。
カバー用組成物を用いて、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、ASTM−D2240に規定する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。
各コアを10個ずつ、エアガンを用いて金属板に50m/秒の速度で衝突させて、コアが壊れるまでの繰返し回数を測定し、10個の平均値を算出した。各コアの耐久性は、コアNo.1の衝突回数を100として、各コアについての回数を指数化した値で示した。
(1)コアの作製
コアNo.1〜13
ニーダーを用いて、基材ゴム(ポリブタジエンゴム)を素練りし、これに表1の配合となるようにエチレン−アクリル酸エチル共重合体(EEA)を添加し、混練(材料温度:100℃、混練時間:3分間)した。さらに、表1に示す配合となるように架橋剤(アクリル酸亜鉛)、架橋助剤(酸化亜鉛)、充填剤(硫酸バリウム)および開始剤(ジクミルパーオキサイド)を添加し、混練ロールにより混練してゴム組成物を調製した。得られたゴム組成物を、半球状キャビティを有する上下金型内で加熱プレス(170℃、20分間)することにより球状コアを得た。
表2に示す配合のゴム組成物を混練ロールにより混練し、半球状キャビティを有する上下金型内で加熱プレス(170℃、20分間)することにより球状の内層コアを得た。
ポリブタジエンゴム:JSR社製、「BR730(ハイシスポリブタジエン(シス−1,4−結合含有量=96質量%、1,2−ビニル結合含有量=1.3質量%、ムーニー粘度(ML1+4(100℃))=55、分子量分布(Mw/Mn)=3))」
EEA1:NUC社製、「NUC−6220(エチレン−アクリル酸エチル共重合体)」(引張弾性率(−25℃);70〜400MPa、脆化温度;−75℃未満、SP値8.6〜9.1)
EEA2:NUC社製、「DPDJ−6169(エチレン−アクリル酸エチル共重合体)」(引張弾性率(−25℃);250MPa、脆化温度;−75℃未満、SP値8.6〜9.1)
EEA3:NUC社製、「NUC−6520(エチレン−アクリル酸エチル共重合体)」(引張弾性率(−25℃);70〜400MPa、脆化温度−75℃未満、SP値8.6〜9.1)
アクリル酸亜鉛:三新化学工業社製、「サンセラー(登録商標)SR」
硫酸バリウム:堺化学社製、「硫酸バリウムBD」
酸化亜鉛:東邦亜鉛社製、「銀嶺R」
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)」
次に、表3に示した配合のカバー用材料を、二軸混練型押出機により押し出して、ペレット状のカバー用組成物を調製した。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/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。得られたカバー用組成物を上述のようにして得られた球状コア上に射出成形して、球状コアと前記コアを被覆するカバーを有するゴルフボールを作製した。
Claims (7)
- 球状コアと前記球状コアを被覆する少なくとも一層のカバーとを有するゴルフボールであって、
前記球状コアの少なくとも一部が、(a)基材ゴム、(b)共架橋剤、(c)架橋開始剤および(x)オレフィン−(メタ)アクリル酸アルキルエステル共重合体を含有するゴム組成物から形成されており、
前記ゴム組成物中の前記(x)オレフィン−(メタ)アクリル酸アルキルエステル共重合体の含有量が、(a)基剤ゴム100質量部に対して0.5質量部〜7.0質量部であることを特徴とするゴルフボール。 - 前記(x)オレフィン−(メタ)アクリル酸アルキルエステル共重合体のメルトフローレイト(2.16kg、190℃)が、1.0g/10min以上である請求項1に記載のゴルフボール。
- 前記(x)オレフィン−(メタ)アクリル酸アルキルエステル共重合体の引張弾性率(−25℃)が、500MPa以下である請求項1または2に記載のゴルフボール。
- 前記(x)オレフィン−(メタ)アクリル酸アルキルエステル共重合体のビカット軟化点が、40℃以上である請求項1〜3のいずれか一項に記載のゴルフボール。
- 前記(x)オレフィン−(メタ)アクリル酸アルキルエステル共重合体の融点が、100℃以下である請求項1〜4のいずれか一項に記載のゴルフボール。
- 前記(x)オレフィン−(メタ)アクリル酸アルキルエステル共重合体の脆化温度が、−50℃以下である請求項1〜5のいずれか一項に記載のゴルフボール。
- 前記(x)オレフィン−(メタ)アクリル酸アルキルエステル共重合体が、エチレン−アクリル酸メチル共重合体、エチレン−アクリル酸エチル共重合体およびエチレン−アクリル酸ブチル共重合体よりなる群から選択される少なくとも一種である請求項1〜6のいずれか一項に記載のゴルフボール。
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US20190344126A1 (en) * | 2016-08-05 | 2019-11-14 | Wilson Sporting Goods Co. | Low compression golf ball |
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US5591803A (en) * | 1994-12-20 | 1997-01-07 | Lisco, Inc. | Golf ball cover compositions |
US6120390A (en) * | 1999-03-01 | 2000-09-19 | Acushnet Company | Golf ball cores with improved durability |
US20070252276A1 (en) * | 2006-04-28 | 2007-11-01 | Ian Lloyd-George | Thin film for vertical form fill and seal packaging of flowable materials |
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GB2174998B (en) * | 1985-03-20 | 1989-01-05 | Dainichi Nippon Cables Ltd | Flame-retardant resin compositions |
US6277920B1 (en) * | 1992-04-24 | 2001-08-21 | Spalding Sports Worldwide, Inc. | Golf ball cores formed from ultra-high mooney viscosity butadiene rubber |
JPH09239067A (ja) * | 1996-03-01 | 1997-09-16 | Bridgestone Sports Co Ltd | ツーピースソリッドゴルフボール |
US7276560B2 (en) * | 2004-12-15 | 2007-10-02 | Bridgestone Sports Co., Ltd. | Solid golf ball |
CN102526995B (zh) * | 2010-12-03 | 2015-04-15 | 住胶体育用品株式会社 | 高尔夫球 |
US20130172120A1 (en) | 2011-12-30 | 2013-07-04 | Bridgestone Sports Co., Ltd. | Solid golf ball |
US9005049B2 (en) | 2011-12-30 | 2015-04-14 | Bridgestone Sports Co., Ltd. | Solid golf ball |
US9044644B2 (en) | 2011-12-30 | 2015-06-02 | Bridgestone Sports Co., Ltd. | Solid golf ball |
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US5591803A (en) * | 1994-12-20 | 1997-01-07 | Lisco, Inc. | Golf ball cover compositions |
US6120390A (en) * | 1999-03-01 | 2000-09-19 | Acushnet Company | Golf ball cores with improved durability |
US20070252276A1 (en) * | 2006-04-28 | 2007-11-01 | Ian Lloyd-George | Thin film for vertical form fill and seal packaging of flowable materials |
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