GOLF BALL WITH EXCELLENT INTERLAYER ADHESION BETWEEN ADJACENT DIFFERING LAYERS

    公开(公告)号:US20170136311A1

    公开(公告)日:2017-05-18

    申请号:US14943314

    申请日:2015-11-17

    Abstract: Golf ball and method for making it, comprising a first layer that comprises a first polymeric composition and is surrounded by and adjacent to a second layer comprising a second polymeric composition different than the first polymeric composition; with one of these layers further comprising at least one silane-containing adhesion promoter such as organosilanes and/or organosiloxanes throughout in an amount of from about 0.1 wt. % to about 5.0 wt. % of the entire layer. Neither layer is surface treated with at least one silane-containing adhesion promoter. The second layer may be the layer comprising the silane-containing adhesion promoter throughout, surrounded by a third layer that comprises a third polymeric composition that differs from the second polymeric composition and does not incorporate any silane-containing adhesion promoter. Strong interlayer bonding is therefore created both between the second layer and the first layer and between the second layer and the third layer.

    GOLF BALLS COMPRISING MEDIUM HARDNESS GRADIENT CORE
    340.
    发明申请
    GOLF BALLS COMPRISING MEDIUM HARDNESS GRADIENT CORE 有权
    高尔夫球包括中等硬度梯度核心

    公开(公告)号:US20160236040A1

    公开(公告)日:2016-08-18

    申请号:US15138371

    申请日:2016-04-26

    Abstract: A golf ball includes a core having an outer surface and a geometric center. The core is formed from a substantially homogenous rubber composition. An ionomeric inner cover layer is formed about the core and has a material hardness of about 60 Shore D or greater. The golf ball includes an outer cover layer formed from a polyurea or a polyurethane and having a material hardness of about 60 Shore D or less. The outer surface of the core has a trans content of about 12% or less and a hardness of about 71 to 88 Shore C. The geometric center of the core has a trans content of about 10% or less and a hardness of about 60 to 80 Shore C. The core has an outer surface hardness greater than a geometric center hardness by about 5 to 19 Shore C to define a positive hardness gradient.

    Abstract translation: 高尔夫球包括具有外表面和几何中心的芯。 芯由基本均匀的橡胶组合物形成。 离型聚合物内覆盖层围绕芯形成,并且具有约60肖氏D或更高的材料硬度。 高尔夫球包括由聚脲或聚氨酯形成并且材料硬度为约60肖氏D或更低的外覆盖层。 芯的外表面的反式含量为约12%或更低,硬度为约71至88肖氏C。芯的几何中心的反式含量为约10%或更低,硬度为约60至 80肖氏C.芯具有大于几何中心硬度的外表面硬度约5至19肖氏C以确定正硬度梯度。

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