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    Golf ball cores made from plasticized thermoplastic compositions containing non-acid polymers
    231.
    发明授权
    Golf ball cores made from plasticized thermoplastic compositions containing non-acid polymers 有权

    公开(公告)号：US10328314B2

    公开(公告)日：2019-06-25

    申请号：US15818894

    申请日：2017-11-21

    Applicant: Acushnet Company

    Inventor： Michael J. Sullivan ,  Robert Blink ,  David A. Bulpett ,  Mark L. Binette ,  Brian Comeau

    IPC: A63B37/06 ,  A63B37/00

    Abstract: Multi-layered golf balls containing a two-layered core assembly are provided. Preferably, at least one of the core layers is formed from a thermoplastic composition that comprises: a) thermoplastic non-acid polymer, and b) plasticizer. In one preferred embodiment, the inner core is made of a first thermoplastic composition comprising the non-acid polymer and plasticizer; and the outer core layer is made of a second thermoplastic composition. For example, an ethylene acid copolymer may be used to form the outer core layer. A fatty acid ester such as ethyl oleate is preferably used as the plasticizer. Suitable non-acid polymers include, for example, polyesters, polyamides, polyolefins, and polyurethanes. The core assembly has a relatively high resiliency at given compressions.

    GOLF BALLS INCORPORATING THERMOPLASTIC BLEND(S) OF IONOMER(S), THERMOPLASTIC POLYMER(S), AND PEPA
    234.
    发明申请
    GOLF BALLS INCORPORATING THERMOPLASTIC BLEND(S) OF IONOMER(S), THERMOPLASTIC POLYMER(S), AND PEPA 审中-公开

    公开(公告)号：US20190083856A1

    公开(公告)日：2019-03-21

    申请号：US16188127

    申请日：2018-11-12

    Applicant: Acushnet Company

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

    IPC: A63B37/00

    Abstract: Golf ball incorporating thermoplastic blend of (i) ionomer(s); (ii) different thermoplastic polymer(s) selected from thermoplastic polyurethane(s), thermoplastic urea(s), and/or thermoplastic urea-urethane hybrid(s); and (iii) polyester elastomer(s) and/or polyamide elastomer(s) (“PEPA”). Ionomer is present in amount of about 45 wt % or greater and PEPA present in amount of from about 2 wt % to about 35 wt %. Thermoplastic polymer(s) may be present in amount of from about 8 wt % to about 50 wt %; or from about 25 wt % to about 45 wt %; or from about 35 wt % to about 50 wt %. Ionomer amount may be greater than amount of thermoplastic polymer. Thermoplastic polymer may be a polyurethane present in amount of greater than 20 wt % and to about 40 wt %; while the PEPA is present in amount of from about 5 wt % to about 30 wt %. PEPA is sometimes present in an amount of from about 15 wt % to about 35 wt %.

    Golf balls having core structures with iron-containing centers
    236.
    发明授权
    Golf balls having core structures with iron-containing centers 有权

    公开(公告)号：US10143893B2

    公开(公告)日：2018-12-04

    申请号：US15593678

    申请日：2017-05-12

    Applicant: Acushnet Company

    Inventor： Michael J. Sullivan ,  Mark L. Binette

    IPC: A63B37/06 ,  A63B37/00

    Abstract: Multi-piece golf balls having a solid core and cover are provided. The ball contains a small, heavy inner core and surrounding outer core layer. The inner core preferably contains metal powder such as copper, steel, brass, tungsten, titanium, nickel, iron, tin, and bronze particles dispersed in a thermoset or thermoplastic polymeric matrix. For example, a polybutadiene rubber matrix may be used. In one preferred embodiment, the inner core contains elemental iron powder. Preferably, the particles have a weight average size in the range of about 10 μm to about 450 μm. In one embodiment, the outer surface of the inner core has a structure with projecting members. For example, the outer surface may contain multiple projecting ribs with gaps located between the ribs. The ball includes a cover surrounding the core structure. The cover may be multi-layered.

    Golf ball incorporating positive hardness gradient thermoset polyurethane outer cover layer
    239.
    发明授权
    Golf ball incorporating positive hardness gradient thermoset polyurethane outer cover layer 有权

    公开(公告)号：US10112081B2

    公开(公告)日：2018-10-30

    申请号：US15805174

    申请日：2017-11-07

    Applicant: Acushnet Company

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

    IPC: A63B37/06 ,  A63B37/00

    Abstract: Golf ball comprising a positive hardness gradient core and an outer cover layer having a microhardness gradient and being formed from a thermoset polyurethane material throughout, and having: i) a treated region that is contacted with a thermoset polyurethane microhardness-increasing solution consisting of an isocyanate portion and at least one non-aqueous solvent; and ii) an untreated region that is not contacted with the thermoset polyurethane microhardness-increasing solution. The treated region comprises the isocyanate portion, whereas the untreated region does not comprise the isocyanate portion. Treated region has a microhardness M1 that is greater than microhardness M2 of untreated region to define the outer cover layer positive microhardness gradient ΔM=M1−M2. The treated region may have a depth Dtr that extends inward from the cover outer surface and in some embodiments is less than a thickness of the untreated region. Treated region may alternatively extend from the inner surface toward outer surface.

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