JP5003869B2 - ゴルフボールの製造方法 - Google Patents
ゴルフボールの製造方法 Download PDFInfo
- Publication number
- JP5003869B2 JP5003869B2 JP2006276308A JP2006276308A JP5003869B2 JP 5003869 B2 JP5003869 B2 JP 5003869B2 JP 2006276308 A JP2006276308 A JP 2006276308A JP 2006276308 A JP2006276308 A JP 2006276308A JP 5003869 B2 JP5003869 B2 JP 5003869B2
- Authority
- JP
- Japan
- Prior art keywords
- component
- mass
- carboxylic acid
- unsaturated carboxylic
- 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.)
- Expired - Fee Related
Links
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0869—Acids or derivatives thereof
- C08L23/0876—Neutralised polymers, i.e. ionomers
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- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
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- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/12—Special coverings, i.e. outer layer material
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- A—HUMAN NECESSITIES
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- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B45/00—Apparatus or methods for manufacturing balls
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
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- B32B25/16—Layered products comprising a layer of natural or synthetic rubber comprising polydienes homopolymers or poly-halodienes homopolymers
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
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- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
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- C08L23/04—Homopolymers or copolymers of ethene
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Description
〔1〕コアの周囲に複数層からなるカバーを被覆したゴルフボールの製造方法において、上記カバーのうち少なくとも1層を、
(A)オレフィン−不飽和カルボン酸共重合体の金属イオン中和物及び/又はオレフィン−不飽和カルボン酸−不飽和カルボン酸エステル共重合体の金属イオン中和物 60〜90質量%(但し、上記(A)成分の40〜80質量%がアルカリイオン金属により中和されたアイオノマーである。)、
(B)少なくとも1種類の(A)成分の不飽和カルボン酸含量と同じ酸含量を有するオレフィン−不飽和カルボン酸共重合体及び/又はオレフィン−不飽和カルボン酸−不飽和カルボン酸エステル共重合体 5〜20質量%、
(C)熱可塑性ポリウレタンエラストマー 2〜30質量%
の加熱混合物を主成分として形成し、この加熱混合物を、上記(B)成分と上記(C)成分とを予め混合した後、上記(A)成分を後添加して得るものであるゴルフボールの製造方法。
〔2〕上記(B)成分と上記(C)成分の混合する温度を、上記(A)成分を後添加する時の温度よりも高く設定した〔1〕記載のゴルフボールの製造方法。
〔3〕上記加熱混合物の製造する際に二軸押出機が用いられるものであり、この二軸押出機の第1投入口にて(B)成分と(C)成分とを投入し、次いで、第2投入口で(A)成分を添加して上記加熱混合物を得る〔1〕又は〔2〕記載のゴルフボールの製造方法。
〔4〕第1投入口から第2投入口の手前のゾーンの設定最高温度が200〜230℃であり、第2投入口から排出口のゾーンの設定最高温度が150〜200℃である〔1〕〜〔3〕のいずれか1項記載のゴルフボールの製造方法。
本発明のゴルフボール用材料は、(A)成分としてオレフィン−不飽和カルボン酸共重合体及び/又はオレフィン−不飽和カルボン酸−不飽和カルボン酸エステル共重合体の金属イオン中和物を配合してなるものである。
なお、混練時間は、いずれの投入の場合も10秒〜5分の範囲内とすることが好適である。
下記表1に示したコア材料を用いて、直径37.3mm、重量32.0g、100kg荷重負荷時の変形量3.1mmに調整したコアAを得た。
カバー材又は中間層材料を1mmのシート状に成形し、その硬度をASTM D−2240に準じて測定したショアD硬度である。
100kg荷重負荷時のボールの変形量(mm)である。
ゴルフボール公認機関R&A(USGA)と同タイプの初速度計を使用し、R&A(USGA)ルールに従い測定したときの初速度である。
JIS−K7210(試験温度190℃、試験荷重21N(2.16kgf))に従い測定した材料のメルトインデックス(MI)である。なお、滞留品については、230℃で10分間加熱したサンプルを上記の条件に従い測定を行った。
COR測定機を用い、入射速度50m/sにてゴルフボールを繰り返し打撃し、ボールが破壊するまでの打撃回数を調べた。表2では比較例1を100とした場合、表3では比較例6を100とした場合の相対値をそれぞれ示した。
ハイミラン1605:三井・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のナトリウムイオン中和物
ハイミラン1706:三井・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の亜鉛イオン中和物
ニュクレル1560:三井・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
パンデックスT−R3080:DICバイエルポリマー社製熱可塑性ポリウレタンエラストマー
パンデックスT−8295:DICバイエルポリマー社製熱可塑性ポリウレタンエラストマー
アミンABT:日本油脂社製硬化牛脂アルキルアミン
表1に示したコア材料を用いて、直径35.3mm、重量27.1g、100kg荷重負荷時の変形量4.0mmに調整したコアBを得た。次いで、下記の表2に示す組成の中間層材料(熱可塑性ポリエステルエラストマー)を上記コアBを配備した金型内に射出成形して、コアBに中間層が被覆された球体(直径38.6mm,重量35.3g,100kg荷重負荷時の変形量3.9mm)を得た。
ハイミラン1601:三井・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のナトリウムイオン中和アイオノマー
ハイミラン1557:三井・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の亜鉛イオン中和アイオノマー
ハイミラン1554:三井・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の亜鉛イオン中和アイオノマー
ハイトレル4047:東レ・デュポンポリケミカル社製 熱可塑性ポリエステルエラストマー
Claims (4)
- コアの周囲に複数層からなるカバーを被覆したゴルフボールの製造方法において、上記カバーのうち少なくとも1層を、
(A)オレフィン−不飽和カルボン酸共重合体の金属イオン中和物及び/又はオレフィン−不飽和カルボン酸−不飽和カルボン酸エステル共重合体の金属イオン中和物 60〜90質量%(但し、上記(A)成分の40〜80質量%がアルカリイオン金属により中和されたアイオノマーである。)、
(B)少なくとも1種類の(A)成分の不飽和カルボン酸含量と同じ酸含量を有するオレフィン−不飽和カルボン酸共重合体及び/又はオレフィン−不飽和カルボン酸−不飽和カルボン酸エステル共重合体 5〜20質量%、
(C)熱可塑性ポリウレタンエラストマー 2〜30質量%
の加熱混合物を主成分として形成し、この加熱混合物を、上記(B)成分と上記(C)成分とを予め混合した後、上記(A)成分を後添加して得るものであるゴルフボールの製造方法。 - 上記(B)成分と上記(C)成分の混合する温度を、上記(A)成分を後添加する時の温度よりも高く設定した請求項1記載のゴルフボールの製造方法。
- 上記加熱混合物の製造する際に二軸押出機が用いられるものであり、この二軸押出機の第1投入口にて(B)成分と(C)成分とを投入し、次いで、第2投入口で(A)成分を添加して上記加熱混合物を得る請求項1又は2記載のゴルフボールの製造方法。
- 第1投入口から第2投入口の手前のゾーンの設定最高温度が200〜230℃であり、第2投入口から排出口のゾーンの設定最高温度が150〜200℃である請求項1〜3のいずれか1項記載のゴルフボールの製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US11/265,255 US7550535B2 (en) | 2005-11-03 | 2005-11-03 | Golf ball and method of manufacture |
US11/265,255 | 2005-11-03 |
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JP2011175736A Division JP5170480B2 (ja) | 2005-11-03 | 2011-08-11 | ゴルフボール |
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JP5003869B2 true JP5003869B2 (ja) | 2012-08-15 |
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JP2011175736A Expired - Fee Related JP5170480B2 (ja) | 2005-11-03 | 2011-08-11 | ゴルフボール |
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JP5031064B2 (ja) * | 2010-04-27 | 2012-09-19 | ダンロップスポーツ株式会社 | ゴルフボール用樹脂組成物およびゴルフボール |
JP5031063B2 (ja) | 2010-04-27 | 2012-09-19 | ダンロップスポーツ株式会社 | ゴルフボール用樹脂組成物およびゴルフボール |
JP5473800B2 (ja) * | 2010-06-29 | 2014-04-16 | ダンロップスポーツ株式会社 | ゴルフボール中間層用樹脂組成物およびゴルフボール |
JP5475571B2 (ja) * | 2010-06-29 | 2014-04-16 | ダンロップスポーツ株式会社 | ゴルフボールカバー用樹脂組成物およびゴルフボール |
US8920264B2 (en) | 2010-07-21 | 2014-12-30 | Nike, Inc. | Golf ball and method of manufacturing a golf ball |
JP5875342B2 (ja) | 2011-11-25 | 2016-03-02 | ダンロップスポーツ株式会社 | ゴルフボール用材料、および、これを用いたゴルフボール |
JP5600843B2 (ja) * | 2012-01-18 | 2014-10-08 | エルジー・ケム・リミテッド | 光学フィルム用樹脂組成物、それを含む偏光子保護フィルム及び液晶表示装置 |
US8623960B2 (en) | 2012-01-20 | 2014-01-07 | Lg Chem, Ltd. | Resin composition for optical film, and polarizer protective film and liquid crystal display including the same |
US10500443B2 (en) * | 2017-11-15 | 2019-12-10 | Acushnet Company | Golf balls incorporating thermoplastic blend(s) of ionomer(s), thermoplastic polymer(s), and polymethyl methacrylate-based polymer(s) |
JP6763299B2 (ja) * | 2016-12-28 | 2020-09-30 | ブリヂストンスポーツ株式会社 | ゴルフボール |
JP6965592B2 (ja) * | 2017-06-22 | 2021-11-10 | ブリヂストンスポーツ株式会社 | ゴルフボール用樹脂組成物及びゴルフボール |
JP7074740B2 (ja) * | 2018-11-12 | 2022-05-24 | アクシュネット カンパニー | 熱可塑性ブレンドを組み込んだゴルフボール |
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US3395109A (en) * | 1962-10-08 | 1968-07-30 | Spalding A G & Bros Inc | Golf ball cover composition comprising a blend of polyesterurethane elastomers |
JPS5160529A (en) * | 1974-11-22 | 1976-05-26 | Konishiroku Photo Ind | Denshishashinkankozairyo |
US4248432A (en) | 1979-07-16 | 1981-02-03 | The B. F. Goodrich Company | Golf ball |
US4442282A (en) * | 1983-06-20 | 1984-04-10 | The B. F. Goodrich Company | Polyurethane covered golf balls |
US4674751A (en) * | 1984-12-10 | 1987-06-23 | Spalding & Evenflo Companies, Inc. | Golf ball having improved playability properties |
EP0540165A1 (en) | 1991-10-03 | 1993-05-05 | Zeneca Limited | Alkanoic acid derivatives |
AU663359B2 (en) * | 1992-01-31 | 1995-10-05 | E.I. Du Pont De Nemours And Company | High-resilience ionomeric compositions for golf ball covers |
JP3772251B2 (ja) * | 2000-02-10 | 2006-05-10 | ブリヂストンスポーツ株式会社 | マルチピースゴルフボールの製造方法 |
JP3767683B2 (ja) * | 2000-11-22 | 2006-04-19 | ブリヂストンスポーツ株式会社 | ゴルフボール用材料の製造方法 |
JP4873111B2 (ja) * | 2001-08-08 | 2012-02-08 | ブリヂストンスポーツ株式会社 | ゴルフボール用材料及びゴルフボール |
JP2003339910A (ja) | 2002-05-30 | 2003-12-02 | Bridgestone Sports Co Ltd | ゴルフボール |
JP4117466B2 (ja) * | 2002-11-29 | 2008-07-16 | ブリヂストンスポーツ株式会社 | ゴルフボール |
JP2004180801A (ja) * | 2002-11-29 | 2004-07-02 | Bridgestone Sports Co Ltd | マルチピースソリッドゴルフボール |
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2005
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2006
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2009
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2011
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US20070100075A1 (en) | 2007-05-03 |
JP2007125377A (ja) | 2007-05-24 |
JP5170480B2 (ja) | 2013-03-27 |
US20090203841A1 (en) | 2009-08-13 |
US7550535B2 (en) | 2009-06-23 |
US8022141B2 (en) | 2011-09-20 |
JP2011251154A (ja) | 2011-12-15 |
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