JPH0145378B2 - - Google Patents
Info
- Publication number
- JPH0145378B2 JPH0145378B2 JP57169144A JP16914482A JPH0145378B2 JP H0145378 B2 JPH0145378 B2 JP H0145378B2 JP 57169144 A JP57169144 A JP 57169144A JP 16914482 A JP16914482 A JP 16914482A JP H0145378 B2 JPH0145378 B2 JP H0145378B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- ionomer resin
- hardness
- shore
- 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
Links
- 229920005989 resin Polymers 0.000 claims description 26
- 239000011347 resin Substances 0.000 claims description 26
- 229920000554 ionomer Polymers 0.000 claims description 23
- 239000007787 solid Substances 0.000 claims description 19
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000005060 rubber Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 239000003431 cross linking reagent Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 235000021122 unsaturated fatty acids Nutrition 0.000 claims description 6
- 150000004670 unsaturated fatty acids Chemical class 0.000 claims description 6
- 239000011787 zinc oxide Substances 0.000 claims description 5
- 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 claims description 3
- BMFMTNROJASFBW-UHFFFAOYSA-N 2-(furan-2-ylmethylsulfinyl)acetic acid Chemical compound OC(=O)CS(=O)CC1=CC=CO1 BMFMTNROJASFBW-UHFFFAOYSA-N 0.000 claims description 2
- 229920003193 cis-1,4-polybutadiene polymer Polymers 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 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 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 150000002763 monocarboxylic acids Chemical class 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 150000005673 monoalkenes Chemical class 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920002857 polybutadiene Polymers 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 150000003751 zinc Chemical class 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Description
本発明はツウーピースソリツドゴルフボールに
関する。
糸巻きゴルフボールの耐久性の悪さを改良する
ために開発されたツウーピースソリツドゴルフボ
ールは一体成形したソリツドコアとそれを被覆す
るカバーから構成される。カバーの材質として
は、機械的強度に優れ、特に打撃時の耐カツト性
と適度の弾力性に優れているという理由から、エ
チレンの共重合体に金属イオンを化学結合させた
アイオノマー樹脂が天然ゴム等のかわりに利用さ
れるようになつている。
しかしながら従来のこの種のツウーピースソリ
ツドゴルフボールも反撥弾性（インパクト時のボ
ール初速度）と耐久性、特に低温耐久性の点でな
お改良すべき余地があり、本発明はこのような観
点からなされたものであつてその要旨は、基材ゴ
ム100重量部、不飽和脂肪酸の金属塩10〜60重量
部、酸化亜鉛40〜70重量部および架橋剤１〜５重
量部含有する組成物を加熱硬化して得られるソリ
ツドコアを、シヨアーＤ硬度65以上、引張強度
250〜300Kg／cm2および脆化温度−100〜−110℃、
MI（Melt Index）＝0.7〜2.0、融点88℃のアイオ
ノマー樹脂40〜45重量部、シヨアーＤ硬度65以
上、引張強度275〜320Kg／cm2および脆化温度−
100〜−110℃、MI＝2.3〜3.0、融点90℃のアイオ
ノマー樹脂40〜45重量部、シヨアーＤ硬度60〜
64、引張強度200〜230Kg／cm2および脆化温度−70
〜−80℃、MI＝８〜12、融点96℃のアイオノマ
ー樹脂５〜10重量部およびシヨアーＤ硬度60〜
64、引張強度190〜220Kg／cm2および脆化温度−75
〜−85℃、MI＝4.5〜8.0、融点94℃のアイオノマ
ー樹脂５〜10重量部を主材とするカバーで被覆し
て成るツウーピースソリツドゴルフボールに存す
る。
本発明に用いる基材ゴムとしてはポリブタジエ
ンゴム、スチレンブタジエンゴム、天然ゴム、ハ
イスチレン樹脂等が例示されるが、ポリブタジエ
ンゴム、就中シス１，４―ポリブタジエンゴムが
好ましい。
本発明に用いる不飽和脂肪酸の金属塩としては
炭素原子数３〜８の不飽和脂肪酸、例えばアクリ
ル酸、メタクリル酸等の亜鉛塩、マグネシウム塩
等が例示されるが、特にアクリル酸亜鉛および／
またはメタクリル酸亜鉛が好ましい。
不飽和脂肪酸の金属塩は基材ゴム100重量部に
対して10〜60重量部使用する。該金属塩が10重量
部よりも少ないと十分な硬さが得られず、インパ
クト時のボールの初速度も小さくなり、また60重
量部以上になるとボールが硬くなりすぎて初速度
が低下する。
酸化亜鉛は重量調整剤として使用するもので、
その配合量は通常基材ゴム100重量部に対して40
〜70重量部とする。
重量調整剤としては他の常套の充填剤、例えば
硫酸バリウム、炭酸カルシウム、シリカ等を適宜
使用してもよい。
ソリツドコアに最適硬度を付与するために使用
する架橋剤としてはジクミルパーオキサイドのよ
うな過酸化物およびアゾビスイソブチルニトリル
のようなアゾ化合物が例示されるが、特にジクミ
ルパーオキサイドが好ましい。
架橋剤の配合量は基材ゴム100重量部に対して
通常１〜５重量部であり、この範囲外の架橋剤を
使用すると最適硬度のコアは得難い。
上記成分を配合して得られるコア用組成物は常
套の混練機、例えばバンバリーミキサーやロール
等を用いて混練し、常法によつて約140〜170℃で
プレス成形して規格の一体成形ソリツドコアとす
る。
一体成形ソリツドコアを被覆するカバーは、ア
イオノマー樹脂を主材とし、必要により着色等の
目的で無機充填剤、例えば二酸化チタン、酸化亜
鉛等を適宜配合させてもよい。
本発明に使用するアイオノマー樹脂はモノオレ
フインと不飽和モノまたはジカルボン酸およびそ
れらのエステルから成る群から選択される少なく
とも１種との重合体に交叉金属結合を付与した熱
可塑性樹脂、好ましくはモノオレフインと炭素原
子数３〜８の不飽和モノまたはジカルボン酸およ
びそれらのエステルから成る群から選択される少
なくとも１種との重合体（不飽和モノまたはジカ
ルボン酸および／またはそれらのエステル４〜30
重量％含有）に交叉金属結合を付与した熱可塑性
樹脂、から選ばれる下記４種のタイプの混合樹脂
である。
即ち、シヨアーＤ硬度65以上、引張強度250〜
300Kg／cm2および脆化温度−100〜−110℃、MI＝
0.7〜2.0、融点88℃の特性を有するアイオノマー
樹脂（以下、アイオノマー樹脂という）、40〜
45重量部、シヨアーＤ硬度65以上、引張強度275
〜320Kg／cm2および脆化温度−100〜−110℃、MI
＝2.3〜3.3、融点90℃の特性を有するアイオノマ
ー樹脂（以下、アイオノマー樹脂という）40〜
45重量部、シヨアーＤ硬度60〜64、引張強度200
〜230Kg／cm2および脆化温度−70〜−80℃、MI＝
８〜12、融点96℃の特性を有するアイオノマー樹
脂（以下、アイオノマー樹脂という）５〜10重
量部およびシヨアーＤ硬度60〜64、引張強度190
〜220Kg／cm2および脆化温度−75〜−85℃、MI＝
4.5〜8.0、融点94℃の特性を有するアイオノマー
樹脂（以下、アイオノマー樹脂という）５〜10
重量部から成る混合樹脂である。
アイオノマー樹脂，，およびの配合割
合が上記範囲をはずれると本発明の所期の目的は
達成し難い。アイオノマー樹脂が40重量部以下
ではボール初速度が低下し、耐久性も低下し、ま
た45重量部以上になると低温耐久性が悪化する。
アイオノマー樹脂が40重量部以下ではボール初
速度が低下し、また45重量部以上になると成型性
が悪化し、融着力が低下する。アイオノマー樹脂
が５重量部以下では融着力が低下し、また10重
量部以上になるとボール初速度が低下する。アイ
オノマー樹脂が５重量部以下では成型性が悪化
し、また10重量部以上になるとボール初速度が低
下する。
カバーをソリツドコアに被覆する方法は特に限
定的ではないが、通常は予め半球殻状に成形した
２枚のカバーでソリツドコアを包み、約170℃で
２分間加圧成形する。また、カバー用組成物を射
出成形してソリツドコアを包みこんでもよい。
以上のようにして得られるツウーピースソリツ
ドゴルフボールは、従来の同種の製品においては
不十分だつた反撥弾性（初速度）および耐久性、
特に低温耐久性並びに打撃時のフイーリングの悪
さを改良したゴルフボールである。
以下、本発明を実施例によつて説明する。
実施例１および比較例１〜６
表―１の配合処方によるコア用組成物をモール
ド内で150℃、30分間加圧成形して直径37.1mmの
コアを製造した。
得られたコアを、表―１の配合処方によるカバ
ーを用い常法によつて被覆してスモールサイズツ
ーピースゴルフボールを製造した。
得られたボールの物性を表―１に示す。
The present invention relates to two-piece solid golf balls. The two-piece solid golf ball, which was developed to improve the poor durability of thread-wound golf balls, consists of an integrally molded solid core and a cover that covers it. The material for the cover is natural rubber, which is an ionomer resin made by chemically bonding metal ions to an ethylene copolymer, because it has excellent mechanical strength, especially cut resistance when struck, and moderate elasticity. It has come to be used instead of etc. However, there is still room for improvement in this kind of conventional two-piece solid golf ball in terms of rebound resilience (initial velocity of the ball at impact) and durability, especially low-temperature durability. The gist is that a composition containing 100 parts by weight of base rubber, 10 to 60 parts by weight of a metal salt of an unsaturated fatty acid, 40 to 70 parts by weight of zinc oxide, and 1 to 5 parts by weight of a crosslinking agent is heated. The solid core obtained by hardening has a Shore D hardness of 65 or more and a tensile strength of
250~300Kg/ cm2 and embrittlement temperature -100~-110℃,
MI (Melt Index) = 0.7 to 2.0, 40 to 45 parts by weight of ionomer resin with melting point of 88°C, Shore D hardness of 65 or more, tensile strength of 275 to 320 Kg/cm 2 and embrittlement temperature -
100~-110℃, MI=2.3~3.0, melting point 90℃ ionomer resin 40~45 parts by weight, Shore D hardness 60~
64, tensile strength 200-230Kg/ cm2 and embrittlement temperature -70
~-80℃, MI=8-12, 5-10 parts by weight of ionomer resin with melting point 96℃ and Shore D hardness 60~
64, tensile strength 190-220Kg/ cm2 and embrittlement temperature -75
The present invention relates to a two-piece solid golf ball coated with a cover mainly composed of 5 to 10 parts by weight of an ionomer resin having a temperature of -85°C, an MI of 4.5 to 8.0, and a melting point of 94°C. Examples of the base rubber used in the present invention include polybutadiene rubber, styrene-butadiene rubber, natural rubber, and high styrene resin, but polybutadiene rubber, particularly cis-1,4-polybutadiene rubber, is preferred. Examples of metal salts of unsaturated fatty acids used in the present invention include zinc salts and magnesium salts of unsaturated fatty acids having 3 to 8 carbon atoms, such as acrylic acid and methacrylic acid, but in particular zinc acrylate and/or
Or zinc methacrylate is preferred. The metal salt of unsaturated fatty acid is used in an amount of 10 to 60 parts by weight based on 100 parts by weight of the base rubber. If the metal salt is less than 10 parts by weight, sufficient hardness will not be obtained and the initial velocity of the ball at impact will be low, and if it is more than 60 parts by weight, the ball will become too hard and the initial velocity will decrease. Zinc oxide is used as a weight adjuster.
Its compounding amount is usually 40 parts by weight per 100 parts by weight of the base rubber.
~70 parts by weight. Other conventional fillers, such as barium sulfate, calcium carbonate, silica, etc., may be used as appropriate weight regulators. Examples of the crosslinking agent used to impart optimum hardness to the solid core include peroxides such as dicumyl peroxide and azo compounds such as azobisisobutylnitrile, with dicumyl peroxide being particularly preferred. The amount of crosslinking agent blended is usually 1 to 5 parts by weight per 100 parts by weight of the base rubber, and if a crosslinking agent outside this range is used, it will be difficult to obtain a core with optimum hardness. The core composition obtained by blending the above components is kneaded using a conventional kneading machine, such as a Banbury mixer or roll, and press-molded at about 140 to 170°C by a conventional method to form a standard integrally molded solid core. shall be. The cover that covers the integrally molded solid core is mainly made of an ionomer resin, and if necessary, an inorganic filler such as titanium dioxide, zinc oxide, etc. may be appropriately blended for the purpose of coloring. The ionomer resin used in the present invention is a thermoplastic resin obtained by imparting a cross-metallic bond to a polymer of monoolefin and at least one selected from the group consisting of unsaturated mono- or dicarboxylic acids and esters thereof, preferably monoolefin. and at least one member selected from the group consisting of unsaturated mono- or dicarboxylic acids having 3 to 8 carbon atoms and their esters (unsaturated mono- or dicarboxylic acids and/or their esters 4 to 30
The following four types of mixed resins are selected from the following four types of thermoplastic resins with cross-metallic bonds added (% by weight). That is, Shore D hardness is 65 or more and tensile strength is 250 or more.
300Kg/ cm2 and embrittlement temperature -100~-110℃, MI=
Ionomer resin having the characteristics of 0.7~2.0 and a melting point of 88°C (hereinafter referred to as ionomer resin), 40~
45 parts by weight, Shore D hardness 65 or more, tensile strength 275
~320Kg/ cm2 and embrittlement temperature −100 to −110℃, MI
= 2.3 to 3.3, ionomer resin having a melting point of 90°C (hereinafter referred to as ionomer resin) 40 to
45 parts by weight, Shore D hardness 60-64, tensile strength 200
~230Kg/ cm2 and embrittlement temperature −70 to −80℃, MI=
5 to 10 parts by weight of an ionomer resin (hereinafter referred to as ionomer resin) having a melting point of 96°C, a Shore D hardness of 60 to 64, and a tensile strength of 190
~220Kg/ cm2 and embrittlement temperature −75 to −85℃, MI=
4.5 to 8.0 and a melting point of 94°C (hereinafter referred to as ionomer resin) 5 to 10
It is a mixed resin consisting of parts by weight. If the blending ratio of the ionomer resin, , and is outside the above range, it will be difficult to achieve the intended purpose of the present invention. If the amount of ionomer resin is less than 40 parts by weight, the initial velocity of the ball will decrease and durability will also be reduced, and if it is more than 45 parts by weight, low temperature durability will deteriorate.
If the ionomer resin is less than 40 parts by weight, the initial velocity of the ball will decrease, and if it is more than 45 parts by weight, the moldability will deteriorate and the fusion strength will decrease. If the amount of ionomer resin is less than 5 parts by weight, the fusing force will decrease, and if it is more than 10 parts by weight, the initial ball speed will decrease. If the amount of ionomer resin is less than 5 parts by weight, moldability will deteriorate, and if it is more than 10 parts by weight, the initial ball speed will decrease. The method of covering the solid core with the cover is not particularly limited, but usually the solid core is wrapped with two covers that have been previously formed into a hemispherical shell shape, and the solid core is press-molded at about 170° C. for 2 minutes. Alternatively, the cover composition may be injection molded to enclose the solid core. The two-piece solid golf ball obtained as described above has excellent rebound resilience (initial velocity) and durability, which were insufficient in conventional products of the same type.
This is a golf ball with improved low-temperature durability and poor feel when hit. Hereinafter, the present invention will be explained with reference to Examples. Example 1 and Comparative Examples 1 to 6 The core compositions according to the formulations shown in Table 1 were pressure-molded in a mold at 150°C for 30 minutes to produce cores with a diameter of 37.1 mm. The obtained core was covered in a conventional manner using a cover having the formulation shown in Table 1 to produce a small size two-piece golf ball. Table 1 shows the physical properties of the obtained ball.
【表】【table】
Claims (1)
10〜60重量部、酸化亜鉛40〜70重量部および架橋
剤１〜５重量部含有する組成物を加熱硬化して得
られるソリツドコアを、シヨアーＤ硬度65以上、
引張強度250〜300Kg／cm2および脆化温度−100〜
−110℃、MI＝0.7〜2.0、融点約88℃のアイオノ
マー樹脂40〜45重量部、シヨアーＤ硬度65以上、
引張強度275〜320Kg／cm2および脆化温度−100〜
−110℃、MI＝2.3〜3.3、融点90℃のアイオノマ
ー樹脂40〜45重量部、シヨアーＤ硬度60〜64、引
張強度200〜230Kg／cm2および脆化温度−70〜−80
℃、MI＝８〜12、融点96℃のアイオノマー樹脂
５〜10重量部およびシヨアーＤ硬度60〜64、引張
強度190〜220Kg／cm2および脆化温度−75〜−85
℃、MI＝4.5〜8.0、融点94℃のアイオノマー樹脂
５〜10重量部を主材とするカバーで被覆して成る
ツウーピースソリツドゴルフボール。 ２ 基材ゴムがシス１，４―ポリブタジエンゴム
である第１項記載のソリツドゴルフボール。 ３ 不飽和脂肪酸の金属塩がアクリル酸亜鉛およ
び／またはメタクリル酸亜鉛である第１項記載の
ソリツドゴルフボール。 ４ 架橋剤がジクミルパーオキサイドである第１
項記載のソリツドゴルフボール。[Claims] 1. 100 parts by weight of base rubber, metal salt of unsaturated fatty acid
A solid core obtained by heating and curing a composition containing 10 to 60 parts by weight of zinc oxide, 40 to 70 parts by weight of zinc oxide, and 1 to 5 parts by weight of a crosslinking agent has a Shore D hardness of 65 or more,
Tensile strength 250~300Kg/ cm2 and embrittlement temperature -100~
-110℃, MI=0.7~2.0, 40~45 parts by weight of ionomer resin with melting point of about 88℃, Shore D hardness 65 or more,
Tensile strength 275~320Kg/ cm2 and embrittlement temperature -100~
-110℃, MI=2.3~3.3, melting point 90℃ ionomer resin 40~45 parts by weight, Shore D hardness 60~64, tensile strength 200~230Kg/ cm2 and embrittlement temperature -70~-80
°C, MI = 8-12, 5-10 parts by weight of ionomer resin with melting point 96 °C and Shore D hardness 60-64, tensile strength 190-220 Kg/cm 2 and embrittlement temperature -75--85
℃, MI=4.5 to 8.0, and a two-piece solid golf ball coated with a cover whose main material is 5 to 10 parts by weight of an ionomer resin with a melting point of 94℃. 2. The solid golf ball according to item 1, wherein the base rubber is cis-1,4-polybutadiene rubber. 3. The solid golf ball according to item 1, wherein the metal salt of unsaturated fatty acid is zinc acrylate and/or zinc methacrylate. 4 The first one in which the crosslinking agent is dicumyl peroxide
The solid golf ball described in Section 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57169144A JPS5957675A (en) | 1982-09-27 | 1982-09-27 | Two-piece solid golf ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57169144A JPS5957675A (en) | 1982-09-27 | 1982-09-27 | Two-piece solid golf ball |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5957675A JPS5957675A (en) | 1984-04-03 |
| JPH0145378B2 true JPH0145378B2 (en) | 1989-10-03 |
Family
ID=15881097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57169144A Granted JPS5957675A (en) | 1982-09-27 | 1982-09-27 | Two-piece solid golf ball |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5957675A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6279072A (en) * | 1985-09-30 | 1987-04-11 | 住友ゴム工業株式会社 | Golf ball |
| JPS62181069A (en) * | 1986-02-04 | 1987-08-08 | キャスコ株式会社 | Solid three-piece golf ball |
| JPH02107275A (en) * | 1988-10-17 | 1990-04-19 | Sumitomo Rubber Ind Ltd | Golf ball |
-
1982
- 1982-09-27 JP JP57169144A patent/JPS5957675A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5957675A (en) | 1984-04-03 |
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