GOLF BALLS INCORPORATING THERMOPLASTIC BLEND(S) OF IONOMER(S), THERMOPLASTIC POLYMER(S), AND POLYMETHYL METHACRYLATE-BASED POLYMER(S)

    公开(公告)号:US20190143179A1

    公开(公告)日:2019-05-16

    申请号:US16186856

    申请日:2018-11-12

    Abstract: Golf ball incorporating thermoplastic blend of (i) ionomer(s); (ii) different thermoplastic polymer(s) selected from thermoplastic polyurethane(s), thermoplastic urea(s), thermoplastic urea-urethane hybrid(s), or combinations thereof; and (iii) polymethyl (meth)acrylate-based copolymer(s) and/or core-shell polymer(s) having a core and/or a shell containing polymethyl (meth)acrylate-based copolymer(s). Ionomer(s) are present in thermoplastic blend in amount of about 45 wt % or greater. Different thermoplastic polymer present in blend in amount of: from about 8 wt % to about 50 wt %; or greater than 20 wt %, or from about 25 wt % to about 45 wt %; or from about 35 wt % to about 50 wt %. In a particular embodiment, amount of ionomer(s) is greater than thermoplastic polyurethane amount. Component (iii) may be present in an amount of about 2 wt % to about 35 wt %, and in a specific embodiments, polymethyl (meth)acrylate-based copolymer(s) and/or core-shell polymer(s) included in blend in amount of from about 15 wt % to about 35 wt %.

    GOLF BALLS INCORPORATING THERMOPLASTIC BLEND(S) OF IONOMER(S), THERMOPLASTIC POLYMER(S), AND POLYMETHYL METHACRYLATE-BASED POLYMER(S)

    公开(公告)号:US20190143178A1

    公开(公告)日:2019-05-16

    申请号:US16186806

    申请日:2018-11-12

    Abstract: Golf ball incorporating thermoplastic blend of (i) ionomer(s); (ii) different thermoplastic polymer(s) selected from thermoplastic polyurethane(s), thermoplastic urea(s), thermoplastic urea-urethane hybrid(s), or combinations thereof; and (iii) polymethyl (meth)acrylate-based copolymer(s) and/or core-shell polymer(s) having a core and/or a shell containing polymethyl (meth)acrylate-based copolymer(s). Ionomer(s) are present in thermoplastic blend in amount of about 45 wt % or greater. Different thermoplastic polymer present in blend in amount of: from about 8 wt % to about 50 wt %; or greater than 20 wt %, or from about 25 wt % to about 45 wt %; or from about 35 wt % to about 50 wt %. In a particular embodiment, amount of ionomer(s) is greater than thermoplastic polyurethane amount. Component (iii) may be present in an amount of about 2 wt % to about 35 wt %, and in a specific embodiments, polymethyl (meth)acrylate-based copolymer(s) and/or core-shell polymer(s) included in blend in amount of from about 15 wt % to about 35 wt %.

    Golf ball incorporating positive hardness gradient thermoset polyurethane outer cover layer

    公开(公告)号:US10252115B2

    公开(公告)日:2019-04-09

    申请号:US16033299

    申请日:2018-07-12

    Abstract: Golf ball comprising a core having a hardness gradient 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.

    Methods for applying polyurethane coatings to golf balls having a thermoplastic polyurethane cover

    公开(公告)号:US10252113B1

    公开(公告)日:2019-04-09

    申请号:US15710866

    申请日:2017-09-21

    Abstract: Golf balls having covers made of thermoplastic polyurethane compositions are provided. Multi-piece golf balls can be made. Polyurethane primer coatings and polyurethane top-coatings are applied to the thermoplastic polyurethane cover. Different coating methods can be used. Isocyanate-rich and polyol-rich polyurethane coatings can be applied. In one embodiment, the golf ball can be treated with a multi-functional isocyanate prior to applying the coatings. The polyurethane cover composition and surface coatings can further include catalysts, ultraviolet (UV)-light stabilizers, and other additives. Heat is used to cure the coatings. The coating methods have many benefits and the finished balls have good physical properties.

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

    公开(公告)号:US10238921B2

    公开(公告)日:2019-03-26

    申请号:US15628716

    申请日:2017-06-21

    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.

    GOLF BALLS HAVING PARTICLE-BASED FOAM CENTER
    28.
    发明申请

    公开(公告)号:US20190054351A1

    公开(公告)日:2019-02-21

    申请号:US16167782

    申请日:2018-10-23

    Abstract: Multi-layered, golf balls having a core made of a particle-based polyurethane foam composition are provided. The ball includes a dual-layered core having a foam inner core (center) and surrounding outer core layer. The surrounding outer core layer is preferably made from a foamed composition. In one embodiment, pre-expanded thermoplastic polyurethane foam beads containing a blowing agent are used to form the foam center and outer core. In another embodiment, pre-formed polyurethane foam particles are used in both core layers. The foam cores have good resiliency, thermal stability, and durability over a wide temperature range. The ball further includes a cover that may be multi-layered.

Patent Agency Ranking