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    Cross-linked thermoplastic polyurethane/polyurea and method of making same
    11.
    发明授权
    Cross-linked thermoplastic polyurethane/polyurea and method of making same 有权
    交联热塑性聚氨酯/聚脲及其制造方法

    公开(公告)号：US07417094B2

    公开(公告)日：2008-08-26

    申请号：US10992907

    申请日：2004-11-18

    申请人： Pijush K. Dewanjee ,  John G. Guard

    发明人： Pijush K. Dewanjee ,  John G. Guard

    IPC分类号： C08G18/08

    CPC分类号： C08G18/0895 ,  C08G18/3814 ,  C08G18/7671 ,  C08L75/02

    摘要： A cross-linked thermoplastic polyurea is formed by heating a mixture containing a thermoplastic urethane base material, a monomeric and/or polymeric di-isocyanate comprising between 1 to 10% of the total weight of the mixture, and a diamine comprising between 1 to 10% of the total weight of the mixture. A thermoplastic polyurethane may be formed by substituting hydroquinone for the diamine. The mixture is heated to a temperature within the range of 250° F. to 550° F. The heated mixture, which is flowable, is then injected into at least one injection molding device. The mixture is then cured at a temperature between 150° F. to 250° F. for a period of time between 2 and 36 hours. The cross-linked thermoplastic polyurethane/polyurea retains the excellent flowability characteristics of a thermoplastic urethane while the same time exhibits good abrasion, tensile strength, rebound, and compression set characteristics which are similar to those found in thermoset urethanes.

    摘要翻译： 交联的热塑性聚脲通过加热含有热塑性氨基甲酸酯基材料，包含混合物总重量的1至10％的单体和/或聚合二异氰酸酯的混合物和包含1至10个 混合物总重量的百分比。 可以通过用氢醌代替二胺来形成热塑性聚氨酯。 将混合物加热到250°F至550°F范围内的温度。然后将可流动的加热混合物注入至少一个注射成型装置中。 然后将混合物在150°F至250°F的温度下固化2至36小时之间的时间。 交联的热塑性聚氨酯/聚脲保留了热塑性聚氨酯的优异的流动性特征，同时表现出与热固性聚氨酯中发现的相似的良好的耐磨性，拉伸强度，回弹和压缩变形特性。

    Method of fabricating a golf ball with polyurethane cover
    13.
    发明授权
    Method of fabricating a golf ball with polyurethane cover 有权
    制造具有聚氨酯盖的高尔夫球的方法

    公开(公告)号：US06482345B1

    公开(公告)日：2002-11-19

    申请号：US09492947

    申请日：2000-01-27

    申请人： Pijush K. Dewanjee

    发明人： Pijush K. Dewanjee

    IPC分类号： B29C4318

    CPC分类号： C08G18/7664 ,  A63B37/0003 ,  A63B37/0031 ,  A63B37/0033 ,  A63B37/0043 ,  A63B37/0053 ,  A63B37/0075 ,  C08G18/10 ,  C08G18/4277 ,  C08G18/3206

    摘要： A golf ball having a cover composed of a polyurethane formed from a p-phenylene diisocyanate (PPDI) based polyurethane prepolymer is disclosed herein. The PPDI-based polyurethane prepolymer is formed from a PPDI and a polyol such as polycaprolactone. The PPDI-based polyurethane prepolymer is cured with a curative such as a 1,4 butane diol and glycol. The PPDI-based polyurethane cover may be either thermoset or thermoplastic. The PPDI-based polyurethane cover has a high flexural modulus at a lower hardness which gives a better feel yet maintains good distance, higher Bashore resilience, higher tensile strength, higher tear resistance, improved elongation, and better playability and control. These benefits and improvements are exhibited even though the cover of the present invention is thinner than those of conventional golf balls. The present invention also provides new golf balls having durable thin covers thereby enabling golf balls with large cores. It is well understood that increasing the core diameter of a golf ball generally translates into an increased COR which in turn generally translates into an increased initial velocity and enhanced overall travel distance.

    摘要翻译： 本文公开了具有由由对苯二异氰酸酯（PPDI）基聚氨酯预聚物形成的聚氨酯构成的覆盖物的高尔夫球。 PPDI基聚氨酯预聚物由PPDI和多元醇如聚己内酯形成。 PPDI基聚氨酯预聚物用固化剂如1,4-丁二醇和二醇固化。 基于PPDI的聚氨酯盖可以是热固性的或热塑性的。 基于PPDI的聚氨酯覆盖层具有较低硬度的高弯曲弹性模量，使其具有更好的感觉，同时保持良好的距离，更高的底板回弹性，更高的拉伸强度，更高的抗撕裂性，改善的伸长率以及更好的可玩性和控制性。 即使本发明的覆盖物比传统的高尔夫球更薄，这些益处和改进也是显现的。 本发明还提供了具有耐用的薄盖的新的高尔夫球，从而使得具有大芯的高尔夫球。 众所周知，增加高尔夫球的芯直径通常转化为增加的COR，其又通常转化为增加的初始速度和增强的总行程距离。

    Golf ball having a polyurethane cover
    14.
    发明授权
    Golf ball having a polyurethane cover 有权
    高尔夫球具有聚氨酯盖

    公开(公告)号：US06422954B1

    公开(公告)日：2002-07-23

    申请号：US09710591

    申请日：2000-11-11

    申请人： Pijush K. Dewanjee

    发明人： Pijush K. Dewanjee

    IPC分类号： A63B3704

    CPC分类号： A63B37/12 ,  A63B37/0003 ,  A63B37/0031 ,  A63B37/0051 ,  A63B37/0065 ,  A63B37/0087 ,  A63B37/0094 ,  A63B37/02

    摘要： A golf ball having a polyurethane cover composed of a blend of polyurethane prepolymers is disclosed herein. The blend may be a dual blend with a TDI-based polyurethane prepolymer blended with a second diisocyanate polyurethane prepolymer, typically a PPDI-based polyurethane prepolymer. The blend may also be a tri-blend with a TDI-based polyurethane prepolymer blended with two other diisocyanate polyurethane prepolymers, typically two different PPDI-based polyurethane prepolymers. The golf ball has a durability of at least 3.5 on a shear test rating of the cover.

    摘要翻译： 本文公开了具有由聚氨酯预聚物的共混物组成的聚氨酯盖的高尔夫球。 共混物可以是与第二二异氰酸酯聚氨酯预聚物（通常为PPDI基聚氨酯预聚物）共混的TDI基聚氨酯预聚物的双重共混物。 共混物也可以是与两种其它二异氰酸酯聚氨酯预聚物（通常为两种不同的基于PPDI的聚氨酯预聚物）共混的TDI基聚氨酯预聚物的三混合物。 高尔夫球的外壳的剪切试验等级具有至少3.5的耐久性。

    Multiple material golf club head with a polymer insert face
    15.
    发明授权
    Multiple material golf club head with a polymer insert face 有权
    具有聚合物插入面的多种材料高尔夫球杆头

    公开(公告)号：US06336869B1

    公开(公告)日：2002-01-08

    申请号：US09679036

    申请日：2000-10-04

    申请人： Ronald K. Hettinger ,  Richard C. Helmstetter ,  J. Neil Hall ,  Augustin W. Rollinson ,  Kamal Sarkar ,  Joshua G. Breier ,  John G. Guard ,  Pijush K. Dewanjee

    发明人： Ronald K. Hettinger ,  Richard C. Helmstetter ,  J. Neil Hall ,  Augustin W. Rollinson ,  Kamal Sarkar ,  Joshua G. Breier ,  John G. Guard ,  Pijush K. Dewanjee

    IPC分类号： A63B5304

    CPC分类号： A63B53/04 ,  A63B53/0466 ,  A63B53/0487 ,  A63B60/00 ,  A63B60/54 ,  A63B2053/0416 ,  A63B2053/0441 ,  A63B2209/00 ,  Y10S273/08

    摘要： The present invention is a golf club (30) having a club head main body (34) with a hollow interior (49), a support layer 41 defining a depth of a recess (38), a polymer insert (40) in the recess (38), an isolation layer (52) and a weight body (50). The polymer insert (40) is composed of a thermosetting polyurethane material having a Shore D hardness in the range of 42 to 55, and a Bayshore rebound in the range of 51 to 60. The preferred thermosetting polyurethane material is formed from a p-phenylene diisocyanate prepolymer and a curing agent. The golf club (30) is preferably a putter, however, it may be a wood or an iron. The particular thermosetting polyurethane provides a soft striking face for feel and a good rebound for distance. The weight body (50) is preferably composed of a tungsten alloy, and the isolation layer (52) is preferably composed of a thermoplastic polyurethane.

    摘要翻译： 本发明是一种具有球杆头主体（34）的高尔夫球杆（30），其具有中空的内部（49），限定凹部（38）的深度的支撑层41，凹部中的聚合物插入件（40） （38），隔离层（52）和重量体（50）。 聚合物插入物（40）由肖氏D硬度在42至55范围内的热固性聚氨酯材料和51至60范围内的贝氏反弹组成。优选的热固性聚氨酯材料由对亚苯基 二异氰酸酯预聚物和固化剂。 高尔夫球杆（30）优选为推杆，但是也可以是木头或铁杆。 特定的热固性聚氨酯提供了柔软的触感面以及远距离的良好反弹。 重量体（50）优选由钨合金构成，隔离层（52）优选由热塑性聚氨酯构成。

    Cross-linked thermoplastic polyurethane/polyurea and method of making same
    17.
    发明授权
    Cross-linked thermoplastic polyurethane/polyurea and method of making same 有权
    交联热塑性聚氨酯/聚脲及其制造方法

    公开(公告)号：US07540990B1

    公开(公告)日：2009-06-02

    申请号：US12260279

    申请日：2008-10-29

    申请人： Pijush K. Dewanjee ,  John G. Guard

    发明人： Pijush K. Dewanjee ,  John G. Guard

    IPC分类号： B29C45/14 ,  B29B7/30 ,  A63B37/12

    CPC分类号： C08G18/0895 ,  C08G18/324 ,  C08G18/3814 ,  C08G18/7671 ,  C08G2120/00 ,  C08G2310/00 ,  C08G2380/00 ,  C08G2410/00 ,  C08L75/04 ,  C08L2666/20

    摘要： A process for forming a cross-linked thermoplastic polymer is disclosed herein. The cross-linked thermoplastic polymer is formed by heating a first mixture containing a thermoplastic urethane base material, a monomeric diisocyanate comprising between 1 to 10% of the total weight of the first mixture, and a second mixture of a first diamine and a second diamine comprising between 1 to 10% of the total weight of a total reaction product. The heated first mixture, which is flowable, is injected into at least one injection molding device, with the second mixture injected at predetermined intervals to create a homogeneous reaction product.

    摘要翻译： 本文公开了形成交联热塑性聚合物的方法。 交联的热塑性聚合物通过加热含有热塑性氨基甲酸酯基材料的第一混合物，包含第一混合物总重量的1至10％的单体二异氰酸酯和第一二胺和第二二胺的第二混合物 占总反应产物总重量的1至10％。 可加热的第一混合物可流动地注入至少一个注射成型装置中，第二混合物以预定间隔注入以产生均匀的反应产物。

    Thermosetting polyurethane material for a golf ball
    19.
    发明授权
    Thermosetting polyurethane material for a golf ball 有权
    用于高尔夫球的热固性聚氨酯材料

    公开(公告)号：US07244802B2

    公开(公告)日：2007-07-17

    申请号：US10711269

    申请日：2004-09-07

    申请人： Pijush K. Dewanjee

    发明人： Pijush K. Dewanjee

    IPC分类号： A63B37/12

    CPC分类号： C08G18/10 ,  A63B37/0003 ,  A63B37/0024 ,  A63B37/0043 ,  A63B37/0045 ,  A63B37/0064 ,  A63B37/0065 ,  A63B37/0074 ,  A63B37/0075 ,  A63B37/12 ,  C08G18/3237

    摘要： A curative blend for a thermosetting polyurethane material that allows for a polyurethane material with greater durability is disclosed herein. The curative blend is composed of 4,4′-methylenebis-(2,6-diethyl)-aniline and a second curing agent selected from the group consisting of N,N′-bis-alkyl-p-phenylenediamine, N,N′-dialkylamino-diphenylmethane with tetrapropoxylated ethylenediamine and an aliphatic diamine. A preferred polyurethane prepolymer is polytetramethylene ether glycol terminated toluene diisocyanate prepolymer. The thermosetting polyurethane is preferably utilized as a cover for a golf ball. The cover is preferably formed over a core and boundary layer.

    摘要翻译： 本文公开了一种热固性聚氨酯材料的固化混合物，其允许具有更高耐久性的聚氨酯材料。 固化剂共混物由4,4'-亚甲基双（2,6-二乙基） - 苯胺和选自N，N'-双烷基对苯二胺，N，N' 二烷基氨基 - 二苯基甲烷与四丙氧基化乙二胺和脂族二胺。 优选的聚氨酯预聚物是聚四亚甲基醚二醇封端的甲苯二异氰酸酯预聚物。 热固性聚氨酯优选用作高尔夫球的盖。 盖优选地形成在芯和边界层上。