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    Golf balls having metal-containing plasticized thermoplastic inner cores and thermoplastic outer cores
    201.
    发明授权
    Golf balls having metal-containing plasticized thermoplastic inner cores and thermoplastic outer cores 有权

    公开(公告)号：US10150010B2

    公开(公告)日：2018-12-11

    申请号：US15387922

    申请日：2016-12-22

    Applicant: Acushnet Company

    Inventor： Michael J. Sullivan ,  Mark L. Binette

    IPC: A63B37/04 ,  A63B37/06 ,  A63B37/00

    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 plasticized thermoplastic polymeric matrix. Different plasticizer such as fatty acid esters may be used. The outer core layer also is preferably formed from a thermoplastic composition such as an ethylene acid copolymer ionomer resin. The resulting ball has high resiliency and good spin.

    Golf ball multilayer core having a gradient quotient
    204.
    发明授权
    Golf ball multilayer core having a gradient quotient 有权

    公开(公告)号：US10130848B2

    公开(公告)日：2018-11-20

    申请号：US15391897

    申请日：2016-12-28

    Applicant: Acushnet Company

    Inventor： Michael J. Sullivan ,  Mark L. Binette ,  Brian Comeau

    IPC: A63B37/06 ,  A63B37/00

    Abstract: A golf ball including a dual core comprising an inner core having a first outer surface, a geometric center, and a soft transition region adjacent to the outer surface, and an outer core layer having a second outer surface disposed about the inner core. An inner cover layer and an outer cover layer are formed over the core. The second outer surface is greater than the first outer surface to define a dual core overall positive hardness gradient of about 25 Shore C to 35 Shore C and has a secondary gradient quotient, GQ′, defined by the equation: 6 ≤ G ′ + T 10 × COR ≤ 7 where G′ is the overall positive hardness gradient in Shore C, T is the percent of trans-polybutadiene isomer at the core outer surface, and COR is the coefficient of restitution measured at an incoming velocity of 125 ft/s.

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