JP2021053381A5 - - Google Patents
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- JP2021053381A5 JP2021053381A5 JP2020159454A JP2020159454A JP2021053381A5 JP 2021053381 A5 JP2021053381 A5 JP 2021053381A5 JP 2020159454 A JP2020159454 A JP 2020159454A JP 2020159454 A JP2020159454 A JP 2020159454A JP 2021053381 A5 JP2021053381 A5 JP 2021053381A5
- Authority
- JP
- Japan
- Prior art keywords
- hardness
- shore
- layer
- outer cover
- cover 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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- 239000010410 layer Substances 0.000 claims 10
- 229920001187 thermosetting polymer Polymers 0.000 claims 4
- 229920001971 elastomer Polymers 0.000 claims 3
- 229920002803 Thermoplastic polyurethane Polymers 0.000 claims 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims 2
- 238000000465 moulding Methods 0.000 claims 2
- 230000001070 adhesive Effects 0.000 claims 1
- 239000000853 adhesive Substances 0.000 claims 1
- 239000011247 coating layer Substances 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 150000001993 dienes Chemical class 0.000 claims 1
- 229920000554 ionomer Polymers 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 229920002635 polyurethane Polymers 0.000 claims 1
- 239000004814 polyurethane Substances 0.000 claims 1
- 229920001169 thermoplastic Polymers 0.000 claims 1
- 239000004416 thermosoftening plastic Substances 0.000 claims 1
Claims (1)
ジエンゴム組成物から形成された熱硬化性ゴムコアであって、その直径が３．８８６ｃｍ（１．５３０インチ）から４．０１３ｃｍ（１．５８０インチ）であり、その圧縮が５５から７０であり、その中心ショアＣ硬度が６０から７０であり、その外側表面ショアＣ硬度が７５から８５であり、上記コアの外側表面ショアＣ硬度と上記コアの中心のショアＣ硬度との間の差が１０から２０である正の硬度勾配を有する、上記熱硬化性ゴムコアと、
アイオノマー組成物から形成され、その厚さが、０．０５０８ｃｍ（０．０２０インチ）から０．１０１６ｃｍ（０．０４０インチ）であり、外側表面ショアＤ硬度は６５を超える熱硬化性中間層と、
４８から５５ショアＤの材料硬度を有する熱硬化性ポリウレタン組成物から形成され、その厚さが０．０７６２ｃｍ（０．０３０インチ）から０．１０１６ｃｍ（０．０４０インチ）である熱可塑性外側カバー層と、
上記中間層および上記外側カバー層の間に配置されるオプションの接着剤層と、
上記外側カバー層の周りに配置される１つまたは複数のコーティング層とを有し、
上記外側カバー層を成形する前の熱可塑性ポリウレタン組成物の分子量の、上記外側カバー層を成形した後の熱可塑性ポリウレタン組成物の分子量に対する比が、３から５０であり、
上記ゴルフボールは、球形外側表面に複数のディンプルを有し、上記複数のディンプルが、正方形両錐体の８つの面をボールの球形の外面に投影することによって定義される８つの三角形のディンプルセクションに配置され、上記８つの三角形のディンプルセクションは、サイズおよびディンプル配置が実質的に同一であることを特徴とする三層ゴルフボール。
In a three-layer golf ball
A thermosetting rubber core formed from a diene rubber composition, the diameter of which is 3.886 cm (1.530 inches) to 4.013 cm (1.580 inches) , the compression of which is 55 to 70. The central shore C hardness is 60 to 70, the outer surface shore C hardness is 75 to 85, and the difference between the outer surface shore C hardness of the core and the central shore C hardness of the core is 10 to 20. With the thermosetting rubber core having a positive hardness gradient,
Formed from an ionomer composition, the thickness thereof ranges from 0.0508 cm (0.020 inch) to 0.1016 cm (0.040 inch) , with a thermosetting intermediate layer having an outer surface shore D hardness of more than 65.
A thermoplastic outer cover layer formed from a thermosetting polyurethane composition having a material hardness of 48 to 55 Shore D, the thickness of which is 0.0762 cm (0.030 inch) to 0.1016 cm (0.040 inch). When,
With an optional adhesive layer placed between the intermediate layer and the outer cover layer,
Having one or more coating layers arranged around the outer cover layer,
The ratio of the molecular weight of the thermoplastic polyurethane composition before molding the outer cover layer to the molecular weight of the thermoplastic polyurethane composition after molding the outer cover layer is 3 to 50.
The golf ball has a plurality of dimples on the outer surface of the sphere, the plurality of dimples having eight triangular dimple sections defined by projecting eight faces of a square pyramid onto the spherical outer surface of the ball. The eight triangular dimple sections are arranged in a three-layer golf ball, characterized in that the size and dimple arrangement are substantially the same.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16/590,317 | 2019-10-01 | ||
| US16/590,317 US20210093929A1 (en) | 2019-10-01 | 2019-10-01 | Golf balls |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2021053381A JP2021053381A (en) | 2021-04-08 |
| JP2021053381A5 true JP2021053381A5 (en) | 2021-05-20 |
| JP7090675B2 JP7090675B2 (en) | 2022-06-24 |
Family
ID=75163517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020159454A Active JP7090675B2 (en) | 2019-10-01 | 2020-09-24 | Golf ball |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20210093929A1 (en) |
| JP (1) | JP7090675B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230415001A1 (en) * | 2022-06-22 | 2023-12-28 | Acushnet Company | Golf balls with increased shear durability |
Family Cites Families (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60111665A (en) * | 1983-11-21 | 1985-06-18 | 住友ゴム工業株式会社 | Golf ball |
| JP2710332B2 (en) * | 1988-03-03 | 1998-02-10 | 住友ゴム工業株式会社 | Golf ball |
| US5830087A (en) * | 1995-06-26 | 1998-11-03 | Lisco, Inc. | Multi-layer golf ball |
| JP2940565B2 (en) * | 1991-02-04 | 1999-08-25 | 住友ゴム工業株式会社 | Golf ball |
| JPH0928830A (en) * | 1995-07-13 | 1997-02-04 | Sumitomo Rubber Ind Ltd | Solid golf ball |
| US5653648A (en) * | 1996-07-09 | 1997-08-05 | Wilson Sporting Goods Co. | Golf ball with elliptical cross-section dimples |
| JP3546713B2 (en) * | 1998-08-26 | 2004-07-28 | ブリヂストンスポーツ株式会社 | Golf ball |
| JP4092097B2 (en) * | 2001-10-31 | 2008-05-28 | Ｓｒｉスポーツ株式会社 | Multi-piece solid golf ball |
| US6843735B2 (en) * | 2002-02-27 | 2005-01-18 | Sumitomo Rubber Industries, Ltd. | Golf ball |
| JP4184107B2 (en) * | 2003-02-04 | 2008-11-19 | Ｓｒｉスポーツ株式会社 | Golf ball |
| US6939924B2 (en) * | 2003-03-10 | 2005-09-06 | Hyun Jin Kim | Golf ball incorporating urethane composition |
| US7422529B2 (en) * | 2004-03-10 | 2008-09-09 | Acushnet Company | Mold for a golf ball |
| US20060111542A1 (en) * | 2004-11-19 | 2006-05-25 | Callaway Golf Company | Polyurethane Material For a Golf Ball |
| US7503856B2 (en) * | 2005-08-26 | 2009-03-17 | Acushnet Company | Dimple patterns for golf balls |
| US9381403B2 (en) * | 2012-09-12 | 2016-07-05 | Acushnet Company | Golf balls having a foam center |
| US9126083B2 (en) * | 2013-06-10 | 2015-09-08 | Acushnet Company | Golf balls having foam inner core and thermoplastic outer core |
| US10449420B2 (en) * | 2008-01-10 | 2019-10-22 | Acushnet Company | Multi-layer core golf ball |
| US8834297B2 (en) * | 2008-01-10 | 2014-09-16 | Acushnet Company | Multi-layer core golf ball |
| US7988571B2 (en) * | 2008-09-15 | 2011-08-02 | Acushnet Company | Golf ball with polygonal dimple groupings |
| US20100240473A1 (en) * | 2009-03-20 | 2010-09-23 | Steven Aoyama | Golf ball with improved symmetry |
| JP5507305B2 (en) * | 2009-08-26 | 2014-05-28 | ダンロップスポーツ株式会社 | Golf ball |
| US8696494B1 (en) * | 2010-02-25 | 2014-04-15 | Callaway Golf Company | Method for treating thermoplastic polyurethane golf ball covers |
| JP5662488B2 (en) * | 2010-03-10 | 2015-01-28 | ナイキ イノベイト セー． フェー． | Hydrophobic thermoplastic polyurethanes as compatibilizers for polymer blends for golf balls |
| JP5703107B2 (en) * | 2011-04-18 | 2015-04-15 | ダンロップスポーツ株式会社 | Golf ball |
| US20130225330A1 (en) * | 2012-02-27 | 2013-08-29 | Nike, Inc. | Golf Ball Having Larger Lower Density Inner Core And Thinner Higher Density Outer Core |
| US20150165276A1 (en) * | 2013-12-16 | 2015-06-18 | Acushnet Company | Golf ball incorporating casing layer for core having steep hardness gradient and methods relating thereto |
| US9566473B2 (en) * | 2013-12-30 | 2017-02-14 | Acushnet Company | Dimple patterns for golf balls |
| TW201538205A (en) * | 2014-04-07 | 2015-10-16 | Nike Innovate Cv | Golf ball with rubber core, layer, or both and method |
| US10653922B2 (en) * | 2014-12-17 | 2020-05-19 | Bridgestone Sports Co., Ltd. | Multi-piece solid golf ball |
| US9750982B2 (en) * | 2014-12-26 | 2017-09-05 | Dunlop Sports Co. Ltd. | Golf ball |
| US20160250522A1 (en) * | 2015-02-27 | 2016-09-01 | Nike, Inc. | Multi-Layer Golf Ball |
| US10765917B2 (en) * | 2017-04-24 | 2020-09-08 | Bridgestone Sports Co., Ltd. | Multi-piece solid golf ball |
| JP2019093116A (en) * | 2017-11-21 | 2019-06-20 | アクシュネット カンパニーＡｃｕｓｈｎｅｔ Ｃｏｍｐａｎｙ | Durable large and regulation-weight golf ball incorporating foamed intermediate layer |
-
2019
- 2019-10-01 US US16/590,317 patent/US20210093929A1/en not_active Abandoned
-
2020
- 2020-09-24 JP JP2020159454A patent/JP7090675B2/en active Active
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