201223594 六、發明說明： ϋ發明所屬_^技術領域】 相關申請案之交互參照 本申請案依據35 U.S.C. §119(e)請求名稱為“具有高初 始速度之南爾夫球(Golf Ball Having High Initial Velocity)，， 且在2010年8月20曰申請之美國暫時專利申請案第 61/375,775號的優先權，該申請案在此加入作為參考。 領域 本發明係大致有關於一種具有多數層之高爾夫球。該 等層係設計成具有恢復係數與壓縮之一特定關係以便得到 一南初始速度。201223594 VI. INSTRUCTIONS: ϋInvention _^Technical Fields] Cross-Reference of Related Applications This application is based on 35 USC §119(e) requesting the name "Golf Ball Having High Initial" </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> </ RTI> <RTIgt; The layers are designed to have a specific relationship between the recovery factor and the compression to obtain a south initial velocity.
L· ittr J 背景 製造具有多數層之高爾夫球在工業中是標準的。個人 設計者在該工業巾會感覺到某些特性比其他的特性更重 要’且會設計-高_夫球以使某純性最適當化。個人設 什者亦會感覺到某些特性比其他的特性更重要或更需要。 在許多情形下，高爾夫球員需要提供儘可能長之一開 球的高爾夫球。除了高爾夫球員之控制以外，開球長度亦 ，到許多因素控制’例如該發球區(tee bQx)及該球道之相對 高度，在或靠近該球道之障礙物，風速，及氣候等。開球 長度亦受_夫球員之揮桿參數控制，例如他或她的 球桿頭速度，他或她的健康狀態，及他或她 選擇使用之球桿。開球長度亦受該離開該開球木桿 201223594 時之初始速度控制。 在其他情形巾，例如，在打短桿(short game)時，高爾 夫球員需要在擊球時具有—良好傳感（㈣及良好旋轉/旋 轉性之高爾夫球…高®夫球之傳感經常受到製成-或多 數覆蓋層之材料控制。該覆蓋材料之選擇亦可依據耐用 性、耐擦性、及顏色等決定。 許多高爾夫球員需要在該球軌跡之長度與該球之傳感 之間的一平衡。雖然某些高爾夫球員只想要其中一個或另 一個，但是更可能的是一高爾夫球員將會想要這些特徵之 一平衡。 因此，需要發展包括一良好傳感及一最大初始速度之 特徵之組合的一球。一高爾夫球員在擊球時通常認為這些 特徵之組合是必要的。L·ittr J Background Manufacturing golf balls with most layers is standard in the industry. Individual designers will feel that certain characteristics are more important than other characteristics in the industrial towel' and will be designed to make the purity most appropriate. Individuals will also feel that certain characteristics are more important or needed than others. In many cases, a golfer needs to provide a golf ball that is as long as possible. In addition to the golfer's control, the length of the tee shot is controlled by a number of factors, such as the tee bQx and the relative height of the fairway, obstacles at or near the fairway, wind speed, and climate. The length of the tee shot is also controlled by the swing parameters of the player, such as his or her club head speed, his or her health status, and the club he or she chooses to use. The length of the tee shot is also controlled by the initial speed of the departure of the tee shot 201223594. In other situations, for example, when playing a short game, the golfer needs to have good sensing ((4) and good rotation/rotation of the golf ball... Made from - or a majority of the overlay material control. The choice of cover material can also be determined by durability, rub resistance, and color, etc. Many golfers need to be between the length of the ball track and the sensing of the ball. A balance. Although some golfers only want one or the other, it is more likely that a golfer will want to balance one of these features. Therefore, development needs to include a good sensing and a maximum initial speed. A ball of a combination of features. A golfer typically considers a combination of these features necessary when hitting the ball.
C 明内J 概要 在一實施例中’提供一高爾夫球。該高爾夫球町具有 一球心及一包圍該球心之覆蓋物。該覆蓋物包含一高度中 和化聚合物。該球心可包含一和緩化材料。該球心玎具有 一第一恢復係數且該球可具有一第二恢復係數。在該第/ 恢復係數與該第二恢復係數之間的差小於大約〇. 〇 3 2。 在另一實施例中，提供一高爾夫球。該高爾夫球玎具 有一球心及一包圍該球心之覆蓋物。該球心可具有一壓縮 X。該球之恢復係數可用該式.6511-0.〇24χ2+〇.1165χ表示。 該球心之恢復係數可用該式0.7951-〇.〇121χ2+〇 416χ表禾。 4 201223594 依據這趨勢線製成之任何球的恢復係數可定上限以產生— 合格球。使用該和緩化材料作為該覆蓋物可容許一設計者 產生使用一高能球心之一合格球。 —高爾夫球可設計成在壓縮、恢復係數、及初始速度 之間有一特殊關係。該球心之材料及恢復係數可設計成產 生一高於一球之預期初始速度及/或一球之旋轉性者。該球 〜之材料及恢復係數可設計成產生一與所預期者不同之該 球整體的恢復係數。特騎，對—給定恢復係數而言依 據本發明製成之球將傾向於具有—比所預期者高之初始速 度。這表示—高爾夫球員可具有足夠之初始速度以便獲得 一良好開球距離同時由於在打短桿時，特別是在半挖起桿 打擊時之低恢復係數而具有更大之旋轉性。 在。亥球心中包括例如高度中和化聚合物之高能材料， 及在該覆蓋物中包括例如熱塑性聚胺基曱_之和緩化或 —具有一給定高能球心之 擇以便得到所需之球性能 緩衝材料的球可得到這些好處。 球可給予一設計者更多覆蓋物選 參數。 在檢視以下圖式及詳細說明後，所屬技術領域中具有 通*知識者將或將會了解本發明之其他系統、方法、特徵 及優點。企圖的是所有這些另外的系統、方法、特徵及優 點應包括錢朗錢概⑼，應在本發明之料内，且 應文以下申請專利範圍保護。 圖式簡單說明 本發明可參照以下圖式及㈣更佳地了解。在圖中之 201223594 組件不一定依照比例，而是著重在顯示本發明之原理。此 外，在圖中，類似符號在全部不同圖中表示對應部件。 第1圖是依據本發明之一高爾夫球之側視圖； 第2圖是依據本發明之一球之—實施例的橫截面圖； 第3圖是依據本發明之一球之另一實施例的橫截面圖； 第4圖是依據本發明之一球之另一實施例的橫截面圖； 第5圖是比較當以—開球木桿測試時之初始速度與該 球之恢復係數的圖； 第ό圖是比較兩球及它們之對應球心之恢復係數及壓 縮的圖，及 第7圖是顯示來自第5與6圖之各種球心之各種趨勢線 的圖。C Ming J Summary In one embodiment, a golf ball is provided. The golf course has a center of the ball and a covering surrounding the center of the ball. The cover comprises a highly neutralizing polymer. The core may comprise a mildening material. The ball core has a first recovery factor and the ball can have a second recovery factor. The difference between the first/recovery coefficient and the second recovery coefficient is less than about 〇. 〇 3 2 . In another embodiment, a golf ball is provided. The golf club has a ball center and a cover that surrounds the ball. The center of the ball can have a compression X. The recovery coefficient of the ball can be expressed by the formula .6511-0.〇24χ2+〇.1165χ. The recovery coefficient of the center of the sphere can be expressed by the formula 0.7951-〇.〇121χ2+〇 416χ. 4 201223594 The recovery factor of any ball made from this trend line can be capped to produce a qualified ball. The use of the tempered material as the cover allows a designer to produce a qualified ball that uses a high energy center. - Golf balls can be designed to have a special relationship between compression, recovery factor, and initial speed. The material of the core and the coefficient of restitution can be designed to produce an expected initial velocity above one ball and/or a rotation of a ball. The material and recovery factor of the ball can be designed to produce a recovery factor that is different from the expected one of the ball. Special riding, for a given recovery factor, a ball made in accordance with the present invention will tend to have an initial velocity that is higher than expected. This means that the golfer may have sufficient initial speed to achieve a good tee shot distance and greater rotatability due to the low recovery factor when hitting the short rod, particularly at the time of the half-tap strike. in. The core of the globe includes, for example, a high-energy material that highly neutralizes the polymer, and includes, for example, a thermoplastic polyamine oxime in the cover, or a choice of a given high energy center to achieve the desired ball performance. The ball of cushioning material can get these benefits. The ball gives a designer more coverage options. Other systems, methods, features and advantages of the present invention will be or become apparent to those skilled in the <RTIgt; It is intended that all such additional systems, methods, features, and advantages should be included in the scope of the present invention and should be protected by the following claims. BRIEF DESCRIPTION OF THE DRAWINGS The invention can be better understood with reference to the following drawings and (d). The 201223594 components in the figures are not necessarily to scale, but rather to illustrate the principles of the invention. In the drawings, like reference characters refer to the 1 is a side view of a golf ball according to the present invention; FIG. 2 is a cross-sectional view of an embodiment of a ball according to the present invention; and FIG. 3 is a view of another embodiment of the ball according to the present invention. Cross-sectional view; Figure 4 is a cross-sectional view of another embodiment of the ball in accordance with the present invention; Figure 5 is a graph comparing the initial velocity of the ball when tested with a kick-off wood and the recovery factor of the ball; The figure is a comparison of the recovery coefficients and compression of the two spheres and their corresponding spheres, and the figure 7 is a diagram showing various trend lines from the various spheres of the 5th and 6th diagrams.
【實施方式；J 詳細說明 本發明揭露一種多層球。雖然在此所述之實施例限定 於高爾夫球，但是本發明不是要如此限定。在此所述之技 術可應用於任何多層物品，特別是一拋射體、球、娛樂裝 置、或其組件。 第1圖是一依據在此揭露之技術製造之球100的側視 圖。第1圖顯示施加在球100之一外表面102上的一般凹坑圖 案:雖然在球100上之凹坑圖案會影響球1〇〇之飛行路徑， 但是沒有特定凹坑圖案對於使用所揭露之實施例是重要 . 又。十者可由欲施加至球100上之任何適當凹坑圖案選 201223594 第2圖是沿第1圖之線2-2所截取之球1 〇〇之一第一實施 例的橫截面圖。如第2圖所示’一球200可具有兩層。球2〇〇 可包括一球心204及一包圍球心204之覆蓋物2〇6。任一在此 所述之南爾夫球的貫施例可依據任何習知技術製造，例如 壓縮及射出模製該球心，射出模製任何外層，任選地以一 黏著劑將該高爾夫球之多數層黏在一起，及例如藉喷塗、 塗刷、浸潰、及移印等塗裝或塗覆該球。 球心204可由一高能量效率材料製成。一高能量效率材 料係會以一南彈性方式碰撞之材料。在某些實施例中，球 心204可主要或完全由一高度中和化聚合物製成。在某些實 施例中，該高度中和化聚合物可以是由E.I. DuPont de Nemours and Company取得之HPF 1000或HPF 2000。在某些 實施例中’球心204可具有一在大約38與大約41mm之間的 直徑。在某些實施例中’覆蓋物206可由一較低能量效率或 和緩化材料製成。一較低能量效率材料係會以一較小彈性 方式碰撞之材料。在某些實施例中，覆蓋物206可主要或完 全由一熱塑性胺基曱酸酯樹脂製成。在某些實施例中，覆 蓋物206可具有一至少2.1mm之厚度。 在某些實施例中，可包括一或多個另外之外層，但是 未顯示在第2圖或任一剩餘圖中。在第2圖中之覆蓋物206外 可以一頂塗層。該頂塗層可以是一被塗布成改善或調整球 200之外觀的塗層。例如，該頂塗層可被塗布成改變球200 之顏色或改變在球200上之光澤度。在另一實施例中，一另 外之塗層可採用將一標誌或其他印刷物施加在球200之外 7 201223594 表面202上的形式。所屬技術領域中具有通常知識者應了解 的是這些外部塗層可以施加至任一在此所述之實施例，且 因此，這任選之塗層將不再連同以下實施例一起說明。應 注意的是高爾夫球通常是經塗覆的。在這申請案中所述之 所有經測試的球均具有塗層，例如塗裝及保護塗層◊雖然 該等塗層會對該球之恢復係數有某些影響，但是—般相信 這影響對於這些實施例之考慮是可忽略的。但是，如果該 等塗層被作成足夠厚或由一非常硬或非常軟之材料製成， 這影響對於依據本發明之實施例之設計目的會是明顯的。 第3圖是沿第1圖之線2-2所截取之球100之一第二實施 例的橫截面圖。如第3圖所示，一球300可具有三層。球3〇〇 可包括一球心304，一包圍球心304之内覆蓋層308，及—包 圍内覆蓋層308之外覆蓋層310。 球心304可由一高能量效率材料製成。一高能量效率材 料係會以一高彈性方式碰撞之材料。在某些實施例中，球 心304可主要或完全由一高度中和化聚合物製成。在某些實 施例中，該高度中和化聚合物可以是由E.I. DuPont de Nemours and Company取得之HPF 1000或HPF 2000。在某此 實施例中，球心304可具有一在大約38mm與大約41mm之間 的直徑。在某些實施例中’該（等）覆蓋層以外之任何層可包 括一高度中和化離子聚合物。在某些實施例中，該（等）覆蓋 層以外之所有層可聚集為一在大約38mm與41mm之間的尺 寸。在某些實施例中，該（等）覆蓋層以外之所有層可聚集為 大約 38.6mm 〇 201223594 在某些實施例中’内覆蓋層308與外覆蓋層310可由一 或多個較低能量效率或和緩化材料製成。在某些實施例 中’内覆蓋層308 ’外覆蓋層31〇，或兩者可主要或完全由 一熱塑性胺基曱酸酯樹脂或一熱塑性聚胺基甲酸酯樹脂製 成。在其他實施例中’内覆蓋層308，外覆蓋層310，或兩 者可主要或完全由一離子聚合樹脂製成。在某些實施例 中’該離子聚合樹脂可以是由E.I. DuPont de Nemours and Company購得SURLYN®。在某些實施例中，内覆蓋層3〇8 與外覆蓋層310之合併厚度可以是大約2.imm。 第4圖是沿第1圖之線2-2所載取之球1〇〇的橫截面圖。 如第4圖所示，一球400可具有四層。_第一層412可以是一 内球心層，一弟二層414可以是一外球心層且可包圍第一層 412。一第三層416可以是一内覆蓋層且可包圍第二層414。 一第四層418可以是一外覆蓋層且可包圍第三層416。第一 或内球心層412及第二或外球心層414可一起被視為且被稱 為球心420。第三或内覆蓋層416及第四或外覆蓋層414可一 起被視為且被稱為覆蓋物422。 球心420可由一或多個高能量效率材料製成，且第一層 412及第二層414之各層可由一不同配方之高效率材料製 成。在某些實施例中，至少一層球心420可主要或完全由一 高度中和化聚合物製成。在某些實施例中，該高度中和化 聚合物可以是由E.I. DuPont de Nemours and Company取得 之HPF 1000或HPF 2000。覆蓋物422可由一較低效率或和緩 化材料製成。在某些實施例中，第三層416，第四層418， 201223594 或兩者可主要或完全由一熱塑性胺基曱酸酯樹脂製成。在 其他貫施例中，第三層416，第四層418，或兩者可主要或 完全由一離子聚合樹脂製成。在某些實施例中，該離子聚 合樹月日可以是由E.I. DuPont de Nemours and Company購得 SURLYN®。在某些實施财，内覆蓋層416與外覆蓋層4i8 之合併厚度可以是大約2.1mm。在某些實施例中，該（等） 覆蓋層以外之任何層可包括—高度巾和化離子聚合物。在 某些實施例中’該（等）覆蓋層以外之所有層可聚集為一在大 約38mm與41咖之_尺寸。在某些實施财，該（等）覆蓋 層以外之所有層可聚集為大約38 6mm。 在第4圖中，球侧已被說明及顯示為具有多數層。在 某些實施例中’可添加另—層。例如，在某些實施例中， 可在球心42G與覆蓋物422之間添加—綠層4其他實施 例中，可在内覆蓋層416與外覆蓋層418之間***—中間覆 蓋層。在其他實施例中，可在内球心層412與外球心層叫 之間***一中間球心層。 所屬技術領域中具有通常知識者亦可了解的是在不偏 離這些實施例之情形下，可依據-設計者之特定需要對該 等實施例之任進行多數類似修改。例如，一四層 球可包括-内球心層，—中間球心層…外球心層，及一 皁-覆蓋層。類似地’ 一球四層可包括一單一覆蓋層及一 内覆蓋層’一中間覆蓋層’及—外覆蓋層。所屬技術領域 中具有通常知識者亦可了解具有其他數目中間層之球。因 此，所示實施例在本f上是示範的，而不是要限制。 201223594 以下請參閱第5圖，顯示說明在所揭露之實施例與目前 市面上販售之球之間之差異的一圖。這些球將在以下更今羊 細地說明。在左側y軸上的值是當以一開球木桿測試時該球 之初始速度。各球係以相同條件（頭速度、打擊之角度等） 以一9.5桿面傾角Nike SQ開球木桿打擊。 初始速度係藉在長條圖上之各長條高度顯示在該圖 中。如在該長條圖中顯示之初始速度係以英哩每小時顯 示。150英哩每小時之初始速度等於大約220英呎每秒。大 約170英哩每小時之初始速度等於大約250英呎每秒。 在該圖右側上之值表示該球整體之恢復係數 (coefficient of restitution)。為了測量一物體之恢復係數，今 物體由一空氣砲以一大約40公尺每秒之初始速度發射。一 鋼板定位在距離該炮大約1.2公尺處，且一速度監測裝置μ 置在距離該炮大約0.6至大約0.9公尺之一距離處。該物體由 該空氣炮發射’通過該速度監測裝置以便決定一初始速 度。接著該物體撞擊該鋼板且反彈回來通過該速度監測裝 置以便決定一返回速度。該恢復係數是該返回速度對該初 始速度之比例。各球之恢復係數係由出現在該圖上之線544 顯示。 該X轴表示受測試之球。各受測試之球係經初始速度及 恢復係數之測試。前九個球（編號1-9)係市面上販售之高爾 夫球。這些高爾夫球各具有由一丁二烯橡膠化合物製成之 一球心，該球心具有一大約4〇mm之直徑。對各球而言，該 球心之精確配方稍微不同。各球之球心係由具有產生不同 11 201223594 壓縮及恢復係數之不同添加劑或不同尺寸的丁二烯橡膠製 成。一般相信在恢復係數與球心尺寸之間有一關連性，且 可能有一強大關連性，使得球心尺寸之微小變化會對恢復 係數具有一不可忽略之影響。各球之覆蓋物是大約1.4mm 厚且主要是由SURLYN®製成。 另一方面，標記為10之球是一依據本實施例製成之 球。標記為10之球改為具有一主要由高度中和化聚合物樹 脂製成之球心，該球心之直徑大約為38mm。該球心之直徑 可如大約41mm—般大。該球之覆蓋物是大約2.imm厚，但 可為如大約〇.9mm—般薄之厚度。如有需要，可包括一外 殼層以碟使該球符合42.67mm(1.680英叫·）之最小USGA尺 寸規定。 在比較初始速度與恢復係數之關係時，應注意的是對 球1-9而言，在恢復係數與初始速度之間有一大致關連性。 例如，對恢復係數低於0.795之球1、2、4與5而言，該初始 速度下降至低於大約150.2。對恢復係數高於0.800之球3、 6、7與8而言’該初始速度高於大約150_8。對恢復係數為 大約0.800之球9而言，該初始速度是大約150.5。因此，該 圖顯示在該恢復係數與該初始速度之間的一大致關連性。 但是，在第5圖中顯示之圖顯示球1〇之初始速度偏離具 有一0.774之恢復係數之一習知球的預期初始速度。對球1〇 而言，該恢復係數具有一大約0.774之值。初始速度不是如 由習知球1-9所預測地低於150英哩每小時，球10之初始速 度維持在150.8，這初始速度幾乎與具有一甚高於球10之恢 12 201223594 得到較長距離 復係數之球的初始速度—樣高。因此，藉使用上述球結構， 為球恢復純可_比較低以便在打短桿時得到較 及旋轉性，同時保持-適#高初始速度以便以_開球木^ 讀+挖起桿打擊制重要。利用_較低恢復係數 球，南爾夫球員將傾向於較硬地，即，以—較高球桿頭速 度打擊該球，叫顺—具錢高恢復係數之球相同之距 離。該較硬之打擊(較高球制速度)對該球㈣更多旋轉。 因此…高爾夫球員可具有—在打短桿時有良好初始速度 及開球距離域轉性較高之較低恢復係數球。 可在現有球與本發明之球之間比較之另—特徵可在第 6圖中看到第6圖疋一顯示在各種球及球心之壓縮與恢復 係數之間之關係的圖。在_上之值表示該球之内球心層之 壓縮。該壓縮係以一在所屬技術領域中習知之方式決定。 該球形球d或球被放在_1Qkg之初始魄下。通常是毫 米之該球直徑的測量值係在一或多點取得，例如在該（等） 極，接縫，或一任意點。記錄一單一值或該等值之平均。 該負載增加至130kg且亦是毫米之該球直徑的第二測量值 係在一相同點或多數相同點取得。記錄在該較大負載下之 單一值或該等值之平均。在毫米之該等記錄值之間的差是 該壓縮。 在y轴上之值表示所考慮之四個物件之各物件的恢復 係數(coefficient of restitution)。線650代表在一直徑大約 38mm且由丁二烯橡膠化合物製成之球心之壓縮與恢復係 13 201223594 數之間的關係。這橡膠球心趨勢線之式是用下式表示 y=0.7531-0.0128x2+0.055x 式 1 其中X是該内球心壓縮且y是該對應恢復係數。 線6 60代表在包括覆蓋線6 5 0中所示球心之一覆蓋物之 一球之該壓縮與恢復係數之間的關係。這線之式是用下式 表示 y=0.6794-0.0179x2+0.083 lx 式 2 其中χ是該球心之壓縮且y是該球整體之恢復係數。在 該球心之相對恢復係數與該球之恢復係數之間的差係在大 約0.035與大約0.037之間的範圍内。 但是，包括主要或完全由一高度中和化聚合物製成之 一球心之該球之相對恢復係數的比較顯示一不同之差。線 670代表在直徑大約38mm且主要或完全由一高度中和化聚 合物製成之一球心之該壓縮與恢復係數之間的關係。這線 之式是用下式表示 y=0.7951-0.0121x2+0.0416x 式 3 其中χ是該球心之壓縮且y是該對應恢復係數。 線680代表在包括覆蓋線670中所示球心之一覆蓋物之 一球之該壓縮與恢復係數之間的關係。該覆蓋物是與由線 650決定之球之覆蓋物相同的覆蓋物結構。這線之式是用下 式表示 y=0.6511-0.024x2+0.1165x 式 4 其中χ是該球心之壓縮且y是該球整體之恢復係數。在 該球心之相對恢復係數與該球之恢復係數之間的差係在大 14 201223594 約0.026與大約0.031之間的範圍内。 因此，如在第6圖中清楚所示，對一給定内球心壓縮而 言’具有一橡膠球心之一球將具有比具有一 HNP球心之一 球更低的一恢復係數。此外，為使該和緩化材料之效果達 到最大，在該球心之恢復係數與該球之恢復係數之間的差 應為至少0.026，但是可顯著地更高，例如0.037，〇.〇5，〇. 1 或甚至更高。該球之恢復係數越低，該球越會旋轉，因此 會需要具有例如至少0.037或至少〇·〇5之一較高恢復係數差 的一球。由於當設有一和緩化覆蓋物時該球整體之恢復係 數可仍在最高性能範圍内，所以如上所述地依據本發明製 成之球心之比較高恢復係數可使在選擇覆蓋物材料方面有 顯著彈性。 這些好處係更簡單地顯示在第7圖中，其中橡膠球心趨 勢線762顯示對一給定恢復係數而言，比ΗΝΡ球心趨勢線 760—致地更低之内球心壓縮。ΗΝΡ球心球趨勢線764(具有 一 ΗΝΡ球心之一完整球的趨勢線)係顯示供參考。 因此，用具有一特定恢復係數之一樹脂球心取代具有 相同特定恢復係數之一橡膠球心可使該球及該球心之相對 恢復係數有很大的差。這在該樹脂球心恢復係數超過由該 橡膠球心趨勢線所給予之恢復係數且其中該球具有一小於 用下式表示之恢復係數之恢復係數時特別為真 y=-0.0103x+0.8419 式 5 其中y是該恢復係數且X是一内球心壓縮。 這通常可藉使至少一内/非覆蓋層由一高度中和化離 15 201223594 子聚合物/聚合物來達成。該覆蓋物之性質摘丁 球心與該高度中和化聚合物球心之間不必改變。卜在 該球心與該球之間之恢復係數的差在使用該高度中=化聚 合物球心時是少至少。這使具有一較高恢復係數 之一球可用相同之覆蓋物材料製成。 當遵循高度中和化聚合物球心及以高度中和化聚合物 球心製成之球之上述恢復係數趨勢線時，會需要觀察其他 限制。例如，-合格球將具有低於用式5或，更保守地，、用 下式表示之趨勢的一恢復係數 y=-0.0103x+0.8299 式6 其中y是該恢復係數且味一内球心壓縮。因此一設計 者會想要給遵循式4之-球之恢復倾定上限，使得該恢復 係數不會超過用式6表示之恢復係數。 在以上揭露之範圍内製成的—球被認為具有較佳性 質。這種球被認為具有比可預期者更高之初始迷度。這種 球亦可使用更多種覆蓋物材料，特別地包括具有較低成本 者。這種球可提供一高爾夫球員一較不昂貴之球，且該球 具有比其他球更長之軌跡。 該多層物品之其他構造亦可增進這些好處。例如，一 高爾夫球可依據本發明與在名稱為“具有有特定模數及硬 度之多數層的高爾夫球（Golf Ball Having Layers with Specified Moduli and Hardnesses)”且在2010年8月 2〇 日申請 之目前美國申請案第12/860,785號，美國專利第 號 t所述之物品的教示製成，且該美國申請案之揭露在此全 16 201223594 部加入作為參考。 雖然本發明之各種實施例已說明過了，但是該說明是 用來示範，而不是限制且所屬技術領域中具有通常知識者 將了解的是在本發明之範疇内可有更多實施例及實施方 式。因此，除了依據附加申請專利範圍及其等效物以外， 本發明不受限制。此外，可在附加申請專利範圍之範缚内 進行各種修改及變化。 【圖式簡單說明3 第1圖是依據本發明之一高爾夫球之側視圖； 第2圖是依據本發明之一球之一實施例的橫截面圖； 第3圖是依據本發明之一球之另一實施例的橫截面圖； 第4圖是依據本發明之一球之另一實施例的橫截面圖； 第5圖是比較當以一開球木桿測試時之初始速度與該 球之恢復係數的圖； 第6圖是比較兩球及它們之對應球心之恢復係數及壓 縮的圖；及 第7圖是顯示來自第5與6圖之各種球心之各種趨勢線 的圖。 【主要元件符號說明】 100.. .球 102.. .外表面 200···球 202.. .外表面 204…球心 206.. .覆蓋物 300.. .球 304…球心 308.. .内覆蓋層 310.. .外覆蓋層 17 201223594 400.. .球 412.. .第一層 414.. .第二層 416.. .第三層 418.. .第四層 420.. .球心 422.. .覆蓋物 18[Embodiment; J Detailed Description The present invention discloses a multilayer ball. While the embodiments described herein are limited to golf balls, the invention is not so limited. The techniques described herein are applicable to any multi-layer article, particularly a projectile, ball, entertainment device, or component thereof. Figure 1 is a side elevational view of a ball 100 made in accordance with the techniques disclosed herein. Figure 1 shows a general pit pattern applied to one of the outer surfaces 102 of the ball 100: although the pit pattern on the ball 100 affects the flight path of the ball 1 , there is no specific pit pattern for use. The embodiment is important. Again. Ten may be selected from any suitable dimple pattern to be applied to the ball 100. 201223594 Figure 2 is a cross-sectional view of the first embodiment of the ball 1 taken along line 2-2 of Figure 1. As shown in Fig. 2, a ball 200 can have two layers. The ball 2〇〇 may include a ball 204 and a cover 2〇6 surrounding the ball 204. Any of the embodiments of the Nalph ball described herein can be made according to any conventional technique, such as compression and injection molding the core, injection molding any outer layer, optionally with an adhesive. Most of the layers are bonded together and coated or coated, for example by spraying, painting, dipping, and pad printing. The core 204 can be made of a high energy efficient material. A high energy efficiency material will collide with the material in a resilient manner. In certain embodiments, the core 204 can be made primarily or entirely of a highly neutralizing polymer. In certain embodiments, the highly neutralized polymer can be HPF 1000 or HPF 2000 available from E.I. DuPont de Nemours and Company. In some embodiments, the center of the ball 204 can have a diameter of between about 38 and about 41 mm. In some embodiments, the cover 206 can be made of a lower energy efficiency or mildening material. A lower energy efficient material will collide with the material in a less flexible manner. In certain embodiments, the cover 206 can be made primarily or entirely of a thermoplastic amine phthalate resin. In certain embodiments, the cover 206 can have a thickness of at least 2.1 mm. In some embodiments, one or more additional outer layers may be included, but are not shown in Figure 2 or any of the remaining figures. A top coat may be provided on the outside of the cover 206 in Fig. 2. The top coat can be a coating that is applied to improve or adjust the appearance of the ball 200. For example, the top coat can be applied to change the color of the ball 200 or to change the gloss on the ball 200. In another embodiment, an additional coating may take the form of applying a logo or other print to the surface 202 of the 201202594. It will be understood by those of ordinary skill in the art that these outer coatings can be applied to any of the embodiments described herein, and thus, such optional coatings will not be described in conjunction with the following examples. It should be noted that golf balls are usually coated. All of the tested balls described in this application have coatings, such as coatings and protective coatings. Although such coatings may have some effect on the recovery factor of the ball, it is generally believed that this effect is The considerations of these embodiments are negligible. However, if the coatings are made thick enough or made of a very hard or very soft material, this effect will be apparent for the design purposes in accordance with embodiments of the present invention. Figure 3 is a cross-sectional view of a second embodiment of a ball 100 taken along line 2-2 of Figure 1. As shown in Fig. 3, a ball 300 can have three layers. The ball 3 can include a core 304, an inner cover 308 surrounding the core 304, and a cover 310 surrounding the inner cover 308. The core 304 can be made of a high energy efficient material. A high energy efficiency material will collide with the material in a highly elastic manner. In certain embodiments, the core 304 can be made primarily or entirely of a highly neutralized polymer. In certain embodiments, the highly neutralized polymer can be HPF 1000 or HPF 2000 available from E.I. DuPont de Nemours and Company. In some such embodiments, the core 304 can have a diameter of between about 38 mm and about 41 mm. In some embodiments, any layer other than the (equal) cover layer can comprise a highly neutralized ionic polymer. In some embodiments, all of the layers other than the (equal) overlay may be gathered into a size between about 38 mm and 41 mm. In some embodiments, all of the layers other than the (or the) cover layer may aggregate to approximately 38.6 mm 〇 201223594. In certain embodiments, 'the inner cover layer 308 and the outer cover layer 310 may be one or more of lower energy efficiencies. Or made with a mildening material. In some embodiments, the inner cover layer 308' outer cover layer 31, or both may be formed primarily or entirely of a thermoplastic amine phthalate resin or a thermoplastic polyurethane resin. In other embodiments, the inner cover layer 308, the outer cover layer 310, or both may be made primarily or entirely of an ionic polymeric resin. In certain embodiments, the ionic polymeric resin may be SURLYN® available from E.I. DuPont de Nemours and Company. In some embodiments, the combined thickness of inner cover 3〇8 and outer cover 310 can be about 2.imm. Figure 4 is a cross-sectional view of the ball taken along line 2-2 of Figure 1 taken. As shown in Fig. 4, a ball 400 can have four layers. The first layer 412 may be an inner core layer, and the second layer 414 may be an outer core layer and may surround the first layer 412. A third layer 416 can be an inner cover layer and can surround the second layer 414. A fourth layer 418 can be an outer cover layer and can surround the third layer 416. The first or inner core layer 412 and the second or outer core layer 414 may be considered together and referred to as a center 420. The third or inner cover layer 416 and the fourth or outer cover layer 414 can be considered together and referred to as a cover 422. The core 420 can be made of one or more high energy efficient materials, and the layers of the first layer 412 and the second layer 414 can be made of a highly formulated material of a different formulation. In some embodiments, at least one of the cores 420 can be made primarily or entirely of a highly neutralized polymer. In certain embodiments, the highly neutralized polymer can be HPF 1000 or HPF 2000 available from E.I. DuPont de Nemours and Company. Cover 422 can be made of a less efficient or slower material. In certain embodiments, the third layer 416, the fourth layer 418, 201223594, or both may be made primarily or entirely of a thermoplastic amine phthalate resin. In other embodiments, the third layer 416, the fourth layer 418, or both may be made primarily or entirely of an ionic polymeric resin. In certain embodiments, the ionic polymerization tree may be SURLYN® available from E.I. DuPont de Nemours and Company. In some implementations, the combined thickness of inner cover 416 and outer cover 4i8 can be about 2.1 mm. In certain embodiments, any layer other than the (etc.) cover layer can include a height towel and a ionic polymer. In some embodiments, all of the layers other than the overlay may be aggregated to a size of about 38 mm and 41 Å. In some implementations, all of the layers other than the (or) overlay may be aggregated to approximately 38 6 mm. In Figure 4, the ball side has been illustrated and shown as having a plurality of layers. In some embodiments, another layer may be added. For example, in some embodiments, a green layer 4 may be added between the core 42G and the cover 422. In other embodiments, an intermediate cover layer may be interposed between the inner cover 416 and the outer cover 418. In other embodiments, an intermediate core layer can be inserted between the inner core layer 412 and the outer core layer. It will also be appreciated by those of ordinary skill in the art that many similar modifications may be made to the embodiments depending on the particular needs of the designer without departing from the embodiments. For example, a four-layer ball may include an inner core layer, an intermediate core layer, an outer core layer, and a soap-cover layer. Similarly, a ball and four layers may include a single cover layer and an inner cover layer 'an intermediate cover layer' and an outer cover layer. Those of ordinary skill in the art will also be aware of balls having other numbers of intermediate layers. Accordingly, the illustrated embodiment is exemplary in this f, and is not intended to be limiting. 201223594 Please refer to Figure 5 below for a diagram illustrating the difference between the disclosed embodiment and the currently available ball on the market. These balls will be explained in detail below. The value on the left y-axis is the initial velocity of the ball when tested with a tee shot. Each ball system is struck with a 9.5 loft Nike SQ kicking wood under the same conditions (head speed, angle of impact, etc.). The initial speed is shown in the figure by the height of each strip on the bar graph. The initial speed as shown in the bar graph is displayed in miles per hour. The initial speed of 150 miles per hour is equal to approximately 220 inches per second. The initial speed of about 170 miles per hour is equal to about 250 inches per second. The value on the right side of the figure indicates the coefficient of restitution of the ball as a whole. In order to measure the recovery factor of an object, the object is now launched by an air cannon at an initial velocity of about 40 meters per second. A steel plate is positioned about 1.2 meters from the gun, and a speed monitoring device μ is placed at a distance of about 0.6 to about 0.9 meters from the gun. The object is launched by the air cannon' through the speed monitoring device to determine an initial velocity. The object then strikes the steel plate and bounces back through the speed monitoring device to determine a return speed. The recovery factor is the ratio of the return speed to the initial speed. The recovery factor for each ball is shown by line 544 appearing on the graph. The X axis represents the ball being tested. Each tested ball was tested for initial speed and recovery factor. The first nine balls (numbers 1-9) are the golf balls sold in the market. Each of these golf balls has a core made of a butadiene rubber compound having a diameter of about 4 mm. The exact formulation of the ball is slightly different for each ball. The ball cores of each ball are made of different additives or different sizes of butadiene rubber which produce different compression and recovery coefficients of 201223594. It is generally believed that there is a correlation between the recovery factor and the size of the core, and there may be a strong correlation such that small changes in the size of the core have a non-negligible effect on the recovery factor. The cover of each ball is approximately 1.4 mm thick and is primarily made of SURLYN®. On the other hand, the ball labeled 10 is a ball made in accordance with this embodiment. The ball labeled 10 was changed to have a core made mainly of highly neutralized polymer resin having a diameter of about 38 mm. The diameter of the center of the ball can be as large as about 41 mm. The cover of the ball is about 2. imm thick, but may be as thin as about 〇.9 mm. If necessary, a shell may be included to allow the ball to meet the minimum USGA size specification of 42.67 mm (1.680 inches). In comparing the relationship between the initial velocity and the recovery factor, it should be noted that for the balls 1-9 there is a substantial correlation between the recovery factor and the initial velocity. For example, for balls 1, 2, 4, and 5 with a recovery factor below 0.795, the initial velocity drops below about 150.2. For balls 3, 6, 7 and 8 with a recovery factor above 0.800, the initial speed is above about 150_8. For a ball 9 with a recovery factor of approximately 0.800, the initial velocity is approximately 150.5. Thus, the graph shows a general correlation between the recovery factor and the initial velocity. However, the graph shown in Figure 5 shows that the initial velocity of the ball 1偏离 deviates from the expected initial velocity of a conventional ball having a recovery factor of 0.774. For the ball 1〇, the coefficient of restitution has a value of approximately 0.774. The initial speed is not less than 150 inches per hour as predicted by conventional balls 1-9, and the initial speed of the ball 10 is maintained at 150.8. This initial speed is almost a long distance from having a recovery of 12 or more 201223594. The initial velocity of the ball of the coefficient - the height of the sample. Therefore, by using the above ball structure, the ball can be restored to a purely low level so as to obtain a more rotatability when the short rod is hit, while maintaining the - high initial speed for the _ kicking wood ^ reading + wedge hitting system important. With the _lower recovery factor ball, the Nanlf player will tend to hit the ball harder, that is, at a higher club head speed, called the same distance as the ball with a high recovery coefficient. The harder strike (higher ball speed) rotates more for the ball (four). Therefore, the golfer can have a lower recovery coefficient ball that has a good initial speed and a higher range of kick-off distance when the short shot is hit. Another feature that can be compared between the existing ball and the ball of the present invention can be seen in Figure 6 which shows the relationship between the compression and recovery coefficients of various balls and centers. The value at _ indicates the compression of the center of the sphere within the ball. This compression is determined in a manner well known in the art. The spherical ball d or ball is placed under the initial armpit of _1Qkg. The measurement of the diameter of the ball, usually in millimeters, is taken at one or more points, such as at the (equal) pole, seam, or an arbitrary point. Record a single value or an average of the values. The second measurement of the diameter of the ball, which is increased to 130 kg and is also millimeters, is taken at the same point or at most the same point. Record a single value or an average of the values under the larger load. The difference between these recorded values in millimeters is the compression. The value on the y-axis represents the coefficient of restitution of each object of the four objects under consideration. Line 650 represents the relationship between the compression and recovery system 13 201223594 in a sphere made of a butadiene rubber compound having a diameter of about 38 mm. The formula of the rubber core trend line is expressed by the following formula: y=0.7531-0.0128x2+0.055x Formula 1 where X is the inner core compression and y is the corresponding recovery coefficient. Line 6 60 represents the relationship between the compression and recovery coefficients of a ball including one of the cores shown in the cover line 600. The formula of this line is expressed by the following formula: y=0.6794-0.0179x2+0.083 lx Equation 2 where χ is the compression of the center of the sphere and y is the recovery coefficient of the sphere as a whole. The difference between the relative recovery coefficient of the center of the sphere and the recovery factor of the sphere is in the range of between about 0.035 and about 0.037. However, a comparison of the relative recovery coefficients of the sphere comprising a sphere made primarily or entirely of a highly neutralized polymer shows a different difference. Line 670 represents the relationship between this compression and recovery factor at a core of approximately 38 mm in diameter and which is made primarily or entirely of a highly neutralized polymer. The formula of this line is expressed by the following formula: y=0.7951-0.0121x2+0.0416x Equation 3 where χ is the compression of the center of the sphere and y is the corresponding recovery coefficient. Line 680 represents the relationship between the compression and recovery coefficients of a ball including one of the cores shown in cover line 670. The cover is the same cover structure as the cover of the ball determined by line 650. The formula of this line is expressed by the following formula: y = 0.6511 - 0.024x2 + 0.1165x Equation 4 where χ is the compression of the center of the sphere and y is the recovery coefficient of the sphere as a whole. The difference between the relative recovery coefficient of the center of the sphere and the recovery factor of the sphere is in the range between about 0.026 and about 0.031. Therefore, as clearly shown in Fig. 6, for a given inner core compression, a ball having a rubber core will have a lower recovery coefficient than a ball having a HNP center. Moreover, in order to maximize the effect of the retarding material, the difference between the coefficient of recovery of the center of the sphere and the coefficient of recovery of the sphere should be at least 0.026, but can be significantly higher, such as 0.037, 〇.〇5, 〇. 1 or even higher. The lower the coefficient of recovery of the ball, the more the ball will rotate, so a ball having a higher recovery coefficient difference of, for example, at least 0.037 or at least 〇·〇5 may be required. Since the overall coefficient of recovery of the ball can still be within the highest performance range when a gentle and grading cover is provided, the relatively high recovery factor of the spherical core made in accordance with the present invention as described above can be used in selecting the covering material. Significantly flexible. These benefits are more simply shown in Figure 7, where the rubber core trend line 762 shows a lower core compression for a given recovery factor, which is lower than the ΗΝΡ heart trend line 760. The Ryukyu Heart Trend Line 764 (a trend line with one complete ball of a ball) is shown for reference. Therefore, replacing a rubber core having one of the same specific recovery coefficients with a resin core having a specific recovery coefficient can make the relative recovery coefficient of the ball and the center of the ball greatly different. This is especially true when the resin spherical center recovery coefficient exceeds the recovery coefficient given by the rubber core trend line and the ball has a recovery coefficient smaller than the recovery coefficient expressed by the following formula: y=-0.0103x+0.8419 5 where y is the recovery factor and X is an inner spherical compression. This can usually be achieved by at least one inner/non-coating layer being neutralized by a high degree of neutralization of 15 201223594 subpolymer/polymer. The nature of the cover does not have to be changed between the center of the sphere and the center of the highly neutralized polymer. The difference in the coefficient of restitution between the center of the sphere and the sphere is at least less when using the height of the polymer sphere. This allows one of the balls having a higher recovery factor to be made of the same covering material. Other limitations may need to be observed when following the above-mentioned coefficient of recovery trend line of highly neutralized polymer spheres and spheres made of highly neutralized polymer spheres. For example, a qualified ball will have a recovery coefficient y=-0.0103x+0.8299 below the trend of Equation 5 or, more conservatively, expressed by the following formula: where y is the recovery coefficient and tastes the inner core compression. Therefore, a designer would like to impose an upper limit on the recovery of the ball following Equation 4 so that the recovery factor does not exceed the recovery factor expressed by Equation 6. Balls made within the scope of the above disclosure are considered to be of superior quality. Such a ball is considered to have a higher initial ambience than expected. Such balls can also use a wider variety of covering materials, particularly those with lower cost. Such a ball can provide a golfer with a less expensive ball and the ball has a longer trajectory than the other balls. Other configurations of the multilayer article may also enhance these benefits. For example, a golf ball may be applied in accordance with the present invention and in the name "Golf Ball Having Layers with Specified Moduli and Hardnesses" and applied on August 2, 2010. The teachings of the articles described in U.S. Patent Application Serial No. 12/860,785, the entire disclosure of which is incorporated herein by reference. Although various embodiments of the invention have been described, the description is illustrative, and not restrictive, and those of ordinary skill in the art will understand that many embodiments and implementations are possible within the scope of the invention. the way. Therefore, the invention is not limited except in the scope of the appended claims and their equivalents. In addition, various modifications and changes can be made within the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a golf ball according to the present invention; FIG. 2 is a cross-sectional view of an embodiment of a ball according to the present invention; FIG. 3 is a ball according to the present invention A cross-sectional view of another embodiment of the ball; Figure 4 is a cross-sectional view of another embodiment of the ball in accordance with the present invention; Figure 5 is a comparison of the initial speed of the ball when tested with a tee shot Figure of the recovery coefficient; Figure 6 is a comparison of the recovery coefficients and compression of the two spheres and their corresponding spheres; and Figure 7 is a diagram showing the various trend lines from the various spheres of Figures 5 and 6. [Description of main component symbols] 100.. . Ball 102.. . Outer surface 200··· Ball 202.. Outer surface 204...Ball 206.. Cover 300.. .Ball 304...Ball 308.. Inner cover layer 310.. . outer cover layer 17 201223594 400.. . ball 412.. . first layer 414.. . second layer 416.. . third layer 418.. . fourth layer 420.. Sphere 422.. . Cover 18