JP5258263B2 - ゴルフボール - Google Patents
ゴルフボール Download PDFInfo
- Publication number
- JP5258263B2 JP5258263B2 JP2007291125A JP2007291125A JP5258263B2 JP 5258263 B2 JP5258263 B2 JP 5258263B2 JP 2007291125 A JP2007291125 A JP 2007291125A JP 2007291125 A JP2007291125 A JP 2007291125A JP 5258263 B2 JP5258263 B2 JP 5258263B2
- Authority
- JP
- Japan
- Prior art keywords
- mass
- cover
- golf ball
- less
- hardness
- 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.)
- Expired - Fee Related
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- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- 229920003307 DuPont™ Surlyn® 8150 Polymers 0.000 description 1
- 229920003304 DuPont™ Surlyn® 8320 Polymers 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 239000005058 Isophorone diisocyanate Substances 0.000 description 1
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 1
- 239000004472 Lysine Substances 0.000 description 1
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- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
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- 239000007983 Tris buffer Substances 0.000 description 1
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- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
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- 125000002723 alicyclic group Chemical group 0.000 description 1
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- 238000005282 brightening Methods 0.000 description 1
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- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- ARUKYTASOALXFG-UHFFFAOYSA-N cycloheptylcycloheptane Chemical compound C1CCCCCC1C1CCCCCC1 ARUKYTASOALXFG-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
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- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
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- ACCCMOQWYVYDOT-UHFFFAOYSA-N hexane-1,1-diol Chemical compound CCCCCC(O)O ACCCMOQWYVYDOT-UHFFFAOYSA-N 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
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- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- XCPCSFWIASFZOP-UHFFFAOYSA-N isocyanic acid;nonane Chemical compound N=C=O.CCCCCCCCC XCPCSFWIASFZOP-UHFFFAOYSA-N 0.000 description 1
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 1
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- QATBRNFTOCXULG-UHFFFAOYSA-N n'-[2-(methylamino)ethyl]ethane-1,2-diamine Chemical compound CNCCNCCN QATBRNFTOCXULG-UHFFFAOYSA-N 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- OEIJHBUUFURJLI-UHFFFAOYSA-N octane-1,8-diol Chemical compound OCCCCCCCCO OEIJHBUUFURJLI-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical compound CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000011417 postcuring Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical compound CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- 235000013772 propylene glycol Nutrition 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000010112 shell-mould casting Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920006027 ternary co-polymer Polymers 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920006345 thermoplastic polyamide Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- AVWRKZWQTYIKIY-UHFFFAOYSA-N urea-1-carboxylic acid Chemical compound NC(=O)NC(O)=O AVWRKZWQTYIKIY-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
- 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 1
Images
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/0023—Covers
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
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- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/708—Isocyanates or isothiocyanates containing non-reactive high-molecular-weight compounds
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- 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
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
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- A—HUMAN NECESSITIES
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- A63B37/0003—Golf balls
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Polyurethanes Or Polyureas (AREA)
Description
ポリイソシアネート−(ポリオール−ポリイソシアネート)n (1)
式(1)中、連結数nは、1以上10以下の整数である。
ポリイソシアネート−(ポリオール−ポリイソシアネート)n (1)
(1)スラブ硬度(ショアD硬度)
カバー用組成物または中間層用組成物を用いて、熱プレス成形により、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。
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、センターまたはコアの表面部において測定したショアD硬度をセンター表面硬度Hs1、コア表面硬度Hsとした。また、センターまたはコアを半球状に切断し、切断面の中心において測定したショアD硬度をセンター中心硬度Ho1、コア中心硬度Hoとした。
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(SRIスポーツ社製XXIO S 11度)を取り付け、ヘッドスピード45m/秒でゴルフボールを打撃し、打撃直後のゴルフボールの速度(m/s)およびスピン速度(rpm)並びに飛距離(発射始点から静止地点までの距離(m))を測定した。測定は、各ゴルフボールについて10回ずつ行って、その平均値をそのゴルフボールの飛距離とした。なお、打撃直後のゴルフボールの速度およびスピン速度は、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スピン速度およびボール初速度を測定した。
ゴルフラボラトリー社製スイングロボットM/Cに市販のサンドウエッジ(シャフトS)を取り付け、ヘッドスピード36m/秒でボールの2箇所を各1回打撃し、打撃部を観察して、4段階で評価した。
耐擦過傷性の評価基準
◎:ゴルフボール表面に傷がない。
○:ゴルフボール表面に傷がわずかに残るがほとんど気にならない。
△:ゴルフボール表面に傷がくっきり残り若干毛羽立ちが見られる。
×:ゴルフボール表面がかなり削れ、毛羽立ちが目立つ。
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(SRIスポーツ社製XXIO S 11度)を取り付け、各ゴルフボールをヘッドスピード45m/秒で打撃して衝突板に衝突させた。これを繰り返して、ゴルフボールが壊れるまでの打撃回数を測定した。各ゴルフボールの耐久性は、No.10のゴルフボールの打撃回数を100として、各ゴルフボールについての打撃回数を指数化した値で示した。指数化された値が大きいほど、ゴルフボールが耐久性に優れていることを示す。
表1に示したポリイソシアネートとポリオールとを所定量用いて、80℃、2時間、乾燥窒素雰囲気下で反応させて、イソシアネート基末端ウレタンプレポリマー(b−1)を得た。
H12MDI:東京化成社製4,4’−ジシクロヘキシルメタンジイソシアネート
PTMG1000:三菱化学社製ポリオキシテトラメチレングリコール、数平均分子量1000
PTMG2000:三菱化学社製ポリオキシテトラメチレングリコール、数平均分子量2000
(1)コアの作製
表2に示す配合のセンター用組成物を混練し、半球状キャビティを有する上下金型内で、160℃で13分間加熱プレスすることにより球状センターを得た。ツーピースゴルフボールを作製する場合には、球状センターをそのままコアとした。
アクリル酸亜鉛:日本蒸留製、「ZNDA−90S」
酸化亜鉛:東邦亜鉛製、「銀嶺R」
硫酸バリウム:堺化学製、「硫酸バリウムBD」
ジフェニルジスルフィド:住友精化製
ジクミルパーオキサイド:日本油脂製、「パークミル(登録商標)D」
ハイミラン1705:三井デュポンポリケミカル社製の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
ラバロンT3339C:三菱化学社製の熱可塑性ポリスチレンエラストマー
表5および表6に示した(A)熱可塑性ポリウレタン(BASF社製、エラストラン(登録商標)ET858D、ET864D、1174D、HM76D)のペレットと(B)ポリイソシアネート混合物のペレット、および、カバー用充填剤(酸化チタン)を、タンブラー型混合機を用いてドライブレンドしてカバー用組成物を調製した。なお、(A)熱可塑性ポリウレタンに対する(B)ポリイソシアネート混合物の配合比率は、(A)熱可塑性ポリウレタン100質量部に対するイソシアネート基量が略同一となるようにした。
得られたカバー用組成物をコア上に直接射出成形することにより、カバーを成形した。カバー成形用上下金型は、半球状キャビティを有し、ピンプル付きで、ピンプルの一部が進退可能なホールドピンを兼ねている。上記ホールドピンを突き出し、コアを投入後ホールドさせ、80トンの圧力で型締めした金型に210℃に加熱した樹脂を0.3秒で注入し、30秒間冷却して型開きしてゴルフボール本体を取り出した。
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分間、および、成形圧力2.94MPaで行った。上記で得られたコアを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150℃、成形時間2分、成形圧力9.8MPaで行い、ゴルフボール本体を得た。
Claims (6)
- コアと、前記コアを被覆するカバーとを有するゴルフボールであって、
前記カバーは、樹脂成分として、熱可塑性ポリウレタン(A)と、
少なくともイソシアネート基を2個以上有するウレタンプレポリマー(b−1)を、イソシアネート基と実質的に反応しない熱可塑性樹脂(b−2)中に分散させたポリイソシアネート混合物(B)とを含有するカバー用組成物により形成されており、
前記カバー用組成物を構成する樹脂成分中の前記熱可塑性ポリウレタン(A)と前記ポリイソシアネート混合物(B)の含有率は、前記熱可塑性ポリウレタン(A)と前記ポリイソシアネート混合物(B)とを合わせて70質量%以上であり、
前記ウレタンプレポリマー(b−1)を構成するポリオール成分の数平均分子量は、650以上であり、
前記ウレタンプレポリマー(b−1)のイソシアネート基量(NCO%)は、0.5質量%以上、15.0質量%以下であり、
前記カバー用組成物のスラブ硬度は、ショアD硬度で、60超75以下であり、
前記カバーの厚みは、2.5mm以下であることを特徴とするゴルフボール。 - 前記ポリイソシアネート混合物(B)のイソシアネート基量(NCO%)は、0.1質量%以上、10.0質量%以下である請求項1に記載のゴルフボール。
- 前記ウレタンプレポリマー(b−1)は、下記式(1)で表される2官能のイソシアネート基末端ウレタンプレポリマーである請求項1または2に記載のゴルフボール。
ポリイソシアネート−(ポリオール−ポリイソシアネート)n (1)
式(1)中、連結数nは、1以上10以下の整数である。 - 前記イソシアネート基と実質的に反応しない熱可塑性樹脂(b−2)は、ポリエステルエラストマー、アクリルエラストマー、スチレンエラストマー、オレフィンエラストマー、塩化ビニルエラストマーよりなる群から選択される少なくとも1種である請求項1〜3のいずれか一項に記載のゴルフボール。
- 前記カバー用組成物は、
熱可塑性ポリウレタン(A)100質量部に対して、
ポリイソシアネート混合物(B)を1質量部〜50質量部含有するものである請求項1〜4のいずれか一項に記載のゴルフボール。 - 前記ポリイソシアネート混合物(B)中のウレタンプレポリマー(b−1)と熱可塑性樹脂(b−2)の配合比率(合計100質量%)は、ウレタンプレポリマー(b−1)/熱可塑性樹脂(b−2)=5質量%〜50質量%/50質量%〜95質量%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。
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| US8349952B2 (en) * | 2006-12-28 | 2013-01-08 | Dunlop Sports Co. Ltd. | Golf ball |
| JP5258262B2 (ja) * | 2007-11-08 | 2013-08-07 | ダンロップスポーツ株式会社 | ゴルフボール |
| JP5258263B2 (ja) | 2007-11-08 | 2013-08-07 | ダンロップスポーツ株式会社 | ゴルフボール |
| JP5258363B2 (ja) * | 2008-04-18 | 2013-08-07 | ダンロップスポーツ株式会社 | ゴルフボール |
| JP5686450B2 (ja) | 2010-07-21 | 2015-03-18 | ナイキ イノベイト セー. フェー. | ゴルフボールおよびゴルフボールの製造方法 |
| JP6328887B2 (ja) * | 2013-04-30 | 2018-05-23 | 住友ゴム工業株式会社 | ゴルフボール |
| JP7290189B2 (ja) * | 2018-03-01 | 2023-06-13 | 住友ゴム工業株式会社 | ゴルフボール |
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