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    MULTI-LAYER GOLF BALLS WITH INCREASED INTERLAYER ADHESION
    103.
    发明公开
    MULTI-LAYER GOLF BALLS WITH INCREASED INTERLAYER ADHESION 审中-公开

    公开(公告)号：US20240278086A1

    公开(公告)日：2024-08-22

    申请号：US18108322

    申请日：2023-02-10

    Applicant: Acushnet Company

    Inventor： Michael Michalewich ,  Shawn Ricci

    IPC: A63B45/00 ,  A63B37/00

    CPC classification number: A63B45/00 ,  A63B37/0023 ,  A63B37/0038 ,  B29L2031/546

    Abstract: Casing compositions including carboxylic acid groups, cover compositions including an adhesion promoter with functional groups that crosslink with carboxylic acid groups, and golf balls made from such compositions that have crosslinks between functional groups of the cover compositions and the carboxylic acid groups. The type and concentration of the components in the casing and cover compositions, including the adhesion promoter, affect the adhesion between golf balls having components made from such compositions and, thus, can be used to produce a golf ball having increased durability. Additionally, methods of crosslinking casing and cover layers made from such casing and cover compositions to increase interlayer adhesion are disclosed.

    METHODS FOR FORMING HEAT-RESISTANT POLYURETHANE COVERS FOR GOLF BALLS
    105.
    发明申请
    METHODS FOR FORMING HEAT-RESISTANT POLYURETHANE COVERS FOR GOLF BALLS 有权

    公开(公告)号：US20220193965A1

    公开(公告)日：2022-06-23

    申请号：US17540300

    申请日：2021-12-02

    Applicant: Acushnet Company

    Inventor： Shawn Ricci ,  Michael Michalewich ,  Brian Comeau

    IPC: B29C45/14 ,  A63B37/00 ,  C09D175/04

    Abstract: The present invention provides methods for producing golf balls having polyurethane covers and the resultant balls. Multi-piece golf balls having an inner core and outer cover with one or more intermediate layers disposed between the core and cover can be formed. The methods involve producing hydroxyl-terminated adducts and isocyanate-terminated prepolymers. Thermoset and thermoplastic polyurethane compositions can be prepared. The resulting polyurethane compositions and golf ball covers have high thermal stability and good wear-resistance and durability.

    METHOD OF MAKING GOLF BALL AND RESULTING GOLF BALL
    106.
    发明申请
    METHOD OF MAKING GOLF BALL AND RESULTING GOLF BALL 有权

    公开(公告)号：US20210317332A1

    公开(公告)日：2021-10-14

    申请号：US17203148

    申请日：2021-03-16

    Applicant: Acushnet Company

    Inventor： Michael Michalewich ,  Brian Comeau ,  Shawn Ricci

    IPC: C09D175/12

    Abstract: Method of making golf ball comprising providing subassembly and forming at least one layer thereabout comprised of a thermoset polyurethane created using prepolymer prepared by: reacting stoichiometric excess of first isocyanate with at least one long chain polyol and/or polyamine soft segment to create first isocyanate-terminated first prepolymer with (% NCO)FIRST PREPOLYMER; and adding stoichiometric excess of additional isocyanate to the first isocyanate-terminated first prepolymer to produce modified-first prepolymer with (% NCO)MODIFIED-FIRST PREPOLYMER; wherein (% NCO)MODIFIED-FIRST PREPOLYMER>(% NCO)FIRST PREPOLYMER. Reacting a stoichiometric excess of isocyanate in multiple steps and staggering addition of total amount of free, reactive, and unreacted isocyanate functional groups into the isocyanate-functional final prepolymer produces an improved final prepolymer as well as a resulting thermoset polyurethane with better physical properties compared with conventional thermoset polyurethanes based on conventional prepolymers wherein the total % NCO is added in a single step or not at all until well into the prepolymer formation process.

    Golf balls having a foam inner core with thermal barrier
    109.
    发明授权
    Golf balls having a foam inner core with thermal barrier 有权

    公开(公告)号：US10525309B2

    公开(公告)日：2020-01-07

    申请号：US16257145

    申请日：2019-01-25

    Applicant: Acushnet Company

    Inventor： Michael J. Sullivan ,  Mark L. Binette ,  Douglas S. Goguen ,  Brian Comeau ,  Michael Michalewich ,  Shawn Ricci ,  John D. Farrell

    IPC: A63B37/06 ,  A63B37/00 ,  A63B45/00

    Abstract: Golf balls having a multi-layered core made of a foamed composition are provided. The core assembly preferably includes a foam inner core (center) and surrounding outer core layer. Preferably, a polyurethane foam composition is used to form the foam center. The core layers have different hardness gradients and specific gravity values. The foamed inner core assembly includes a geometric center, outer surface (skin), and thermal barrier layer that helps protect the foamed center region from the negative effects of high temperatures used during the ball-manufacturing process. Non-foamed thermoset materials such as polybutadiene rubber may be used to form the thermal barrier layer. 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.

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