Golf balls having dual-layered cores with metal-containing centers and dual-layered covers

    公开(公告)号:US10709938B2

    公开(公告)日:2020-07-14

    申请号:US16361379

    申请日:2019-03-22

    Abstract: Multi-piece golf balls containing a dual-layered core and dual-layered cover are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, and a surrounding outer core layer. The core layers may have different hardness gradients. The center of the core comprises a metal material such as copper, steel, brass, tungsten, titanium, aluminum, and combinations and alloys thereof preferably dispersed in a thermoplastic polymeric matrix. The outer core layer is preferably formed from a thermoset composition such as polybutadiene. The multi-layered cores and covers have selective specific gravity relationships between the different layers. This helps provide the ball with good flight distance and spin control. The resulting balls have good resiliency and other playing performance properties.

    NON-CONFORMING GOLF BALLS MADE FROM PLASTICIZED THERMOPLASTIC MATERIALS

    公开(公告)号:US20200215394A1

    公开(公告)日:2020-07-09

    申请号:US16812467

    申请日:2020-03-09

    Abstract: Golf balls having a single or dual-layered solid core are provided. In one embodiment, the golf ball has dimensions and properties that do not conform to the rules of the United States Golf Association (USGA). For example, the ball weight; ball size; ball spherical symmetry; ball initial velocity; and/or ball overall distance may fall outside of the USGA standards. The dual-layered core can have an inner core comprising a thermoplastic composition and surrounding outer core comprising a thermoset composition. In another embodiment, the dual-layered core has an inner core comprising a thermoplastic composition and outer core comprising a thermoset composition. The thermoplastic composition preferably comprises an ethylene acid copolymer ionomer and plasticizer. The thermoset composition preferably comprises polybutadiene rubber. The ball further includes a cover of at least one layer.

    Golf balls having multi-layered cores with thermoset outer layer

    公开(公告)号:US10675511B2

    公开(公告)日:2020-06-09

    申请号:US16270701

    申请日:2019-02-08

    Abstract: Multi-piece golf balls containing a multi-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, an intermediate core layer, and a surrounding outer core layer. The layers of the core structure may have different hardness gradients. In one preferred embodiment, each core layer has a positive hardness gradient. The center of the core comprises a metal material such as copper, steel, brass, tungsten, titanium, aluminum, and alloys thereof. The intermediate core layer is preferably formed from a first thermoset composition such as polybutadiene rubber, and the outer core layer is preferably formed from a second thermoset composition. The resulting ball has high resiliency and good spin control.

    A GOLF BALL COMPRISING A VERY-LOW MELT FLOW INNER COVER LAYER COMPOSITION

    公开(公告)号:US20200086174A1

    公开(公告)日:2020-03-19

    申请号:US16686598

    申请日:2019-11-18

    Abstract: A golf ball including a core; an inner cover layer formed from a first thermoplastic composition and having a thickness of about 0.005 inches to 0.40 inches and a surface hardness of about 60 Shore D or greater; and an outer cover layer formed from a thermoplastic polyurethane material and having a thickness of about 0.01 inches to 0.075 inches and a surface hardness of about 60 Shore D or less. The thermoplastic composition has a first melt flow index at 280° C. under a 10-kg load of less than about 35 g/10 min and a second melt flow index at 265° C. under a 5-kg load of less than about 10 g/10 min.

    Golf balls having metal-containing plasticized thermoplastic inner cores and thermoset outer cores

    公开(公告)号:US10561904B2

    公开(公告)日:2020-02-18

    申请号:US16139080

    申请日:2018-09-23

    Abstract: Multi-piece golf balls containing a dual-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, and a surrounding outer core layer. The layers of the core structure may have different hardness gradients. The center of the core comprises a metal material such as copper, steel, brass, tungsten, titanium, aluminum, and alloys thereof preferably dispersed in a thermoplastic polymeric matrix. Different plasticizers such as fatty acid esters may be used. The outer core layer is preferably formed from a thermoset composition such as polybutadiene. The resulting ball has high resiliency and good spin.

    GOLF BALLS HAVING MULTI-LAYERED CORE WITH METAL-CONTAINING CENTER AND THERMOPLASTIC OUTER LAYERS

    公开(公告)号:US20190381365A1

    公开(公告)日:2019-12-19

    申请号:US16554752

    申请日:2019-08-29

    Abstract: Multi-piece golf balls containing a multi-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, an intermediate core layer, and a surrounding outer core layer. The layers of the core structure may have different hardness gradients. The center of the core comprises a metal material such as copper, steel, brass, tungsten, titanium, aluminum, and alloys thereof dispersed in a thermoset polymeric matrix. The intermediate core layer is preferably formed from a first thermoplastic composition such as an ethylene acid copolymer ionomer resin; and the outer core layer is preferably formed from a second thermoplastic composition. The resulting ball has high resiliency and good spin control.

Patent Agency Ranking