Golf balls having foam center containing clay particulate

    公开(公告)号:US10376746B2

    公开(公告)日:2019-08-13

    申请号:US15600991

    申请日:2017-05-22

    Abstract: Multi-piece golf balls having a solid core made of a foamed composition and a cover are provided. Preferably, the core is dual-layered having has a foam inner core (center) and surrounding thermoset or thermoplastic outer core layer. Preferably, a polyurethane foam composition containing mineral filler particulate, for example, nanoclay particles, is used to form the foam center. The concentration of clay particulate is preferably in a range of 0.1 to 60% by weight. The surrounding outer core layer may be made from non-foamed or foamed compositions. For example, polybutadiene rubber or highly neutralized olefin acid copolymers may be used in the outer core layer. The core layers have different hardness gradients and specific gravity values.

    GOLF BALL DISPLAYING IMPROVED ADHESION BETWEEN TiO2-PIGMENTED LAYER INCORPORATING SILANE-CONTAINING ADHESION PROMOTER AND AN ADJACENT DIFFERING LAYER

    公开(公告)号:US20190038940A1

    公开(公告)日:2019-02-07

    申请号:US16158552

    申请日:2018-10-12

    Abstract: Golf ball comprising first layer of first polymeric composition, and second layer adjacent to first layer and comprising second polymeric composition different than first polymeric composition and comprising throughout: (i) passivated TiO2 particulates amount of from about 1 wt. %-10 wt. % based on total weight of second polymeric composition; and (ii) silane-containing adhesion promoter(s), for example, organosilanes and/or organosiloxanes, such that a given amount thereof within the range of from about 0.1 wt. % to about 5.0 wt. % has a first required amount of free functional groups to bond the second layer and the first layer at an interface in addition to a second required amount of functional groups bonding and/or crosslinking ingredients within the second polymeric composition of the second layer. Neither layer is surface treated with at least one silane-containing adhesion promoter, nor is a tie layer disposed there between. Excellent dual interlayer/intralayer bonding is thereby created within the second layer and with adjacent layer(s).

    Golf balls having a foam inner core with thermal barrier

    公开(公告)号:US10188909B2

    公开(公告)日:2019-01-29

    申请号:US15140613

    申请日:2016-04-28

    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.

    GOLF BALLS HAVING AN INNER CORE MADE OF VISCOELASTIC POLYURETHANE

    公开(公告)号:US20180280765A1

    公开(公告)日:2018-10-04

    申请号:US15472348

    申请日:2017-03-29

    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 viscoelastic polyurethane foam composition is used to form the inner core. The foam composition has shape-memory properties. The core has good durability and thermal stability. In other instances, the viscoelastic polyurethane foam composition can be used to make the outer core layer. The core layers can have different hardness gradients and specific gravity values. The ball further includes a cover that can be multi-layered.

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