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    • 8. 发明授权
    • Thermoplastic/thermoset hybrid golf club shafts and methods of
manufacturing the same
    • 热塑性/热固性混合高尔夫球棒杆及其制造方法
    • US6132323A
    • 2000-10-17
    • US221208
    • 1998-12-22
    • Brian S. SmithHerbert ReyesJames M. Murphy
    • Brian S. SmithHerbert ReyesJames M. Murphy
    • A63B53/10B29C35/02B29C70/08B29C70/44
    • A63B53/10B29C35/02B29C70/086B29C70/446A63B60/06A63B60/08A63B60/10A63B60/54B29C2791/001B29K2063/00B29K2105/243B29L2031/5227Y10S273/07
    • An improved shaft for a golf club and methods of manufacturing the same. A plurality of layers of composite fiber bound within a thermoset resin are bonded to one or more layers of composite fiber bound within a thermoplastic resin using a high peel strength nylon epoxy adhesive. Preferably, the layer(s) of composite fiber bound within the thermoplastic resin comprise the outermost layer of a golf club shaft.In one preferred form, a plurality of plies of pre-preg composite sheet including a thermoset resin are wrapped around a mandrel and pre-cured. Thereafter, a layer of adhesive is wrapped over the pre-cured plies, at least one ply of pre-preg composite sheet including a thermoplastic resin is wrapped over the adhesive, and a cellophane or polypropylene tape is wrapped over the outermost layer of pre-preg. Thereafter, the ply wrapped mandrel is placed in a mold and heated to a predetermined temperature for a time sufficient to allow curing of all of the plies comprising the golf club shaft.In an alternative form, the layer of fiber comprising the thermoplastic resin may be pre-cured and used as a shell during the curing process. Bladder molding is preferred in such embodiments.
    • 用于高尔夫球杆的改进的轴及其制造方法。 使用高剥离强度尼龙环氧树脂粘合剂将在热固性树脂中结合的多层复合纤维结合到热塑性树脂中结合的一层或多层复合纤维上。 优选地,结合在热塑性树脂内的复合纤维层包括高尔夫球杆杆的最外层。 在一个优选形式中,将包括热固性树脂的多个预浸复合片材层缠绕在心轴上并预固化。 此后,将一层粘合剂包裹在预固化层上,将包含热塑性树脂的至少一层预先预复合片材包裹在粘合剂上,并将玻璃纸或聚丙烯带缠绕在预固化层的最外层上, preg。 此后,将层叠的心轴放置在模具中并加热至预定温度足以允许包含高尔夫球杆杆的所有层的固化的时间。 在替代形式中,包含热塑性树脂的纤维层可以在固化过程中被预固化并用作壳。 在这样的实施方案中,优选膀胱成型。