JP5415389B2 - ゴルフボール - Google Patents
ゴルフボール Download PDFInfo
- Publication number
- JP5415389B2 JP5415389B2 JP2010236173A JP2010236173A JP5415389B2 JP 5415389 B2 JP5415389 B2 JP 5415389B2 JP 2010236173 A JP2010236173 A JP 2010236173A JP 2010236173 A JP2010236173 A JP 2010236173A JP 5415389 B2 JP5415389 B2 JP 5415389B2
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- Prior art keywords
- less
- golf ball
- cover
- mass
- intermediate layer
- 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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- XATSGKXHVKZFKL-UHFFFAOYSA-N cyclohexylmethylcyclohexane;methanediimine Chemical compound N=C=N.C1CCCCC1CC1CCCCC1 XATSGKXHVKZFKL-UHFFFAOYSA-N 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
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
- ZZTCPWRAHWXWCH-UHFFFAOYSA-N diphenylmethanediamine Chemical compound C=1C=CC=CC=1C(N)(N)C1=CC=CC=C1 ZZTCPWRAHWXWCH-UHFFFAOYSA-N 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000021323 fish oil Nutrition 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
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- 238000010438 heat treatment Methods 0.000 description 1
- 150000002429 hydrazines Chemical class 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229940035429 isobutyl alcohol Drugs 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical group 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- DZBOAIYHPIPCBP-UHFFFAOYSA-L magnesium;2-methylprop-2-enoate Chemical compound [Mg+2].CC(=C)C([O-])=O.CC(=C)C([O-])=O DZBOAIYHPIPCBP-UHFFFAOYSA-L 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- DWLAVVBOGOXHNH-UHFFFAOYSA-L magnesium;prop-2-enoate Chemical compound [Mg+2].[O-]C(=O)C=C.[O-]C(=O)C=C DWLAVVBOGOXHNH-UHFFFAOYSA-L 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
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- 239000004014 plasticizer Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 102000007739 porin activity proteins Human genes 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- LMCILKQUBHEOPB-UHFFFAOYSA-M sodium;ethene;prop-2-enoate Chemical compound [Na+].C=C.[O-]C(=O)C=C LMCILKQUBHEOPB-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- VOZKAJLKRJDJLL-UHFFFAOYSA-N tolylenediamine group Chemical group CC1=C(C=C(C=C1)N)N VOZKAJLKRJDJLL-UHFFFAOYSA-N 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical group [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
100質量部のハイシスポリブタジエン(JSR社の商品名「BR−730」)、25質量部のアクリル酸亜鉛、10質量部の酸化亜鉛、適量の硫酸バリウム、0.5質量部のジフェニルジスルフィド(住友精化社製)及び0.8質量部のジクミルパーオキサイド(日本油脂社製)を混練し、タイプxのゴム組成物を得た。このゴム組成物を共に半球状キャビティを備えた上型及び下型からなる金型に投入し、170℃の温度下で20分間加熱して、直径が39.2mmであるコアを得た。
コアの直径及び中間層の厚みを下記の表3に示される通りとした他は実施例1と同様にして、実施例3から4のゴルフボールを得た。
中間層の樹脂組成物のタイプを下記の表3に示される通りとした他は実施例1と同様にして、実施例2、5及び6並びに比較例1のゴルフボールを得た。樹脂組成物の詳細が、下記の表2に示されている。
カバーの樹脂組成物のタイプを下記の表4に示される通りとした他は実施例1と同様にして、比較例2のゴルフボールを得た。樹脂組成物の詳細が、下記の表2に示されている。
コアの直径及びカバーの厚みを下記の表4に示される通りとした他は実施例1と同様にして、実施例7から8のゴルフボールを得た。コアのゴム組成物のタイプ及び直径並びにカバーの厚みを下記の表4に示される通りとした他は実施例1と同様にして、比較例3のゴルフボールを得た。ゴム組成物の詳細が、下記の表1に示されている。
補強層の形成に、二液硬化型エポキシ樹脂を基材ポリマーとする塗料組成物(神東塗料社の商品名「ポリン750LE」)を用いた他は実施例1と同様にして、実施例9のゴルフボールを得た。この塗料組成物は、100質量部の主剤と100質量部の硬化剤との混合によって調製された。この主剤は、30質量%のビスフェノールA型エポキシ樹脂と、70質量%の溶剤とを含む。この硬化剤は、40質量%の変性ポリアミドアミンと、5質量%の二酸化チタンと、55質量%の溶剤とを含む。
補強層を設けなかった他は実施例1と同様にして、比較例4のゴルフボールを得た。
コア、中間層及びカバーの仕様を下記の表4に示される通りとした他は実施例1と同様にして、実施例10から11のゴルフボールを得た。
上記コアの圧縮変形量の測定と同様の方法で、ゴルフボールの圧縮変形量を測定した。この結果が、下記の表3及び表4に示されている。
ツルテンパー社のスイングマシンに、メタルヘッドを備えたドライバーを装着した。ヘッド速度が45m/secとなるようにマシン条件を設定し、ゴルフボールを打撃して、
衝突板に衝突させた。ゴルフボールが破壊されるまでの打撃回数をカウントし、6個のゴルフボールについての平均値を算出した。この結果が、比較例4が100とされたときの指数として、下記の表3及び表4に示されている。
上記のスイングマシンに、メタルヘッドを備えたドライバーを装着した。ヘッド速度が45m/secとなるようにマシン条件を設定し、ゴルフボールを打撃して、発射地点から静止地点までの距離を測定した。10回の測定の平均値が、下記の表3及び表4に示されている。
ゴルファーにドライバーでゴルフボールを打撃させ、打球感を「A」から「D」の4段階に格付けさせた。
A:極めて良好
B:良好
C:やや不良
D:不良
この結果が、下記の表3及び表4に示されている。
4・・・コア
6・・・中間層
8・・・補強層
10・・・カバー
12・・・ディンプル
14・・・ランド
Claims (8)
- その直径が42.67mm以上42.80mm以下であり、
球状のコアと、このコアの外側に位置する中間層と、この中間層の外側に位置する補強層と、この補強層の外側に位置するカバーとを備えており、
このコアの直径が39.2mm以上であり、
この中間層の、ショアD型硬度計で測定された硬度Hmが54以下であり、
このカバーの基材ポリマーの主成分がアイオノマー樹脂であり、
このカバーの、ショアD型硬度計で測定された硬度Hcが55以上であり、
このカバーの質量Wcが1.5g以上5.7g以下であり、
このカバーの、硬度Hcに対する質量Wcの比(Wc/Hc)が0.080以下であるゴルフボール。 - 上記中間層の基材ポリマーが、10質量%以上60質量%以下のスチレンブロック含有熱可塑性エラストマーと、40質量%以上90質量%以下のアイオノマー樹脂とを含んでいる請求項1に記載のゴルフボール。
- 上記カバーの基材ポリマーが、スチレンブロック含有熱可塑性エラストマーを含んでいる請求項1又は2に記載のゴルフボール。
- 上記カバーの厚みTcが1.2mm以下である請求項1から3のいずれかに記載のゴルフボール。
- 上記中間層の厚みTmが0.5mm以上1.6mm以下である請求項1から4のいずれかに記載のゴルフボール。
- 上記補強層が水系接着剤からなる請求項1から5のいずれかに記載のゴルフボール。
- 上記水系接着剤の基材ポリマーが、カルボキシル基含有ポリウレタンとポリカルボジイミドとの反応生成物である請求項6に記載のゴルフボール。
- 上記補強層の厚みが0.003mm以上0.050mm以下である請求項1から7のいずれかに記載のゴルフボール。
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