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71. 发明申请

US20100130685A1 THERMOPLASTIC MOLDING COMPOUND WITH PROCESSING-INDEPENDENT VISCOSITY 失效
标题翻译：具有加工独立粘度的热塑性模塑料
公开(公告)号：US20100130685A1
公开(公告)日：2010-05-27
申请号：US12598938
申请日：2008-04-23
申请人： Martin Weber , Achim Datko , Ludger Leber
发明人： Martin Weber , Achim Datko , Ludger Leber
IPC分类号： C08L51/00 , B29C51/10 , B29C49/00 , B29C45/00 , B29C43/24 , B29C47/00 , B29C43/44
CPC分类号： C08L51/04 , C08F257/02 , C08F279/02 , C08F285/00 , C08L25/12 , C08L33/08 , C08L33/12 , C08L35/06 , C08L51/00 , C08L51/003 , C08L2205/03 , C08L2666/02 , C08L2666/04
摘要： The present invention relates to thermoplastic molding compositions comprising a mixture composed of (A) at least one methyl methacrylate polymer, (B) at least one copolymer, obtainable via polymerization of a mixture, composed of (B1) at least one vinylaromatic monomer, and (B2) at least one vinyl cyanide, as monomers, (C) at least one graft polymer, obtainable from a core, and a first graft shell, and a second graft shell, (D) at least one polybutyl acrylate whose molar mass is from 1700 to 4000 g/mol (determined as Mw by means of gel permeation chromatography), and (E) if appropriate conventional additives, as component (E), to a process for preparation of these thermoplastic molding compositions, to the use of this thermoplastic molding composition for production of moldings, and also to the use of styrene-methyl methacrylate copolymers whose molar mass is from 1700 to 4000 g/mol (determined as Mw by means of gel permeation chromatography) for improvement of flowability and for reduction of the dependency of notched impact strength and haze values of thermoplastic molding compositions on injection-molding conditions.
摘要翻译：本发明涉及热塑性模塑组合物，其包含由（A）至少一种甲基丙烯酸甲酯聚合物，（B）至少一种共聚物组成的混合物，所述共聚物可通过由（B1）至少一种乙烯基芳族单体组成的混合物聚合获得，和（B2）至少一种乙烯基氰，作为单体，（C）至少一种可从芯获得的接枝聚合物和第一接枝壳和第二接枝壳，（D）至少一种丙烯酸丁酯，其摩尔质量为通过凝胶渗透色谱法测定为1700至4000g / mol（通过凝胶渗透色谱法测定为Mw），和（E）如果合适的常规添加剂（E）作为组分（E），用于制备这些热塑性模塑组合物的方法用于制造模制品的热塑性模塑组合物，以及摩尔质量为1700至4000g / mol（通过凝胶渗透色谱法测定为Mw）的苯乙烯 - 甲基丙烯酸甲酯共聚物的用途，用于改善流动性和红色对热塑性模塑组合物的缺口冲击强度和雾度值的依赖性对注塑条件的影响。

72. 发明申请

US20100087612A1 MONOVINYLIDENE AROMATIC POLYMERS COMPRISING SULFANYLSILANE FUNCTIONALIZED ELASTOMERIC POLYMERS 有权
标题翻译：包含SULFANYLSILANE功能化弹性体聚合物的单烯基芳族聚合物
公开(公告)号：US20100087612A1
公开(公告)日：2010-04-08
申请号：US12596162
申请日：2008-03-27
申请人： Amaia Montoya-Goni , Evernarie Hamann
发明人： Amaia Montoya-Goni , Evernarie Hamann
IPC分类号： C08F30/08
CPC分类号： C08C19/44 , C08F8/42 , C08F279/02 , C08F279/04 , C08K5/548 , C08L15/00 , C08L19/006 , C08L25/06 , C08L51/003 , C08L51/006 , C08L51/04 , C08L53/025 , C08L55/02 , C08L2666/24 , C08L2666/02 , C08L2666/04
摘要： The present invention is a rubber modified monovinylidene aromatic polymer composition where the rubber is a sulfanylsilane chain end modified elastomeric polymer. In the present invention the functionalized rubber provides sufficient grafting levels in standard graft polymerization process technologies to prepare desired rubber particle size distributions and morphologies. Across a range of rubber modified monovinylidene aromatic polymers, it has been found that the use of the modified elastomeric polymers according to the present invention can improve the combinations of resin properties, particularly clarity, surface and physical properties, including both rubber modified monovinylidene aromatic homopolymers (e.g., high impact polystyrene and copolymers (e.g., ABS). The functionalized rubbers have sulfanyl functional groups that provide an optimized reactive grafting site. This ensures that under graft polymerization conditions a monovinylidene aromatic polymer block is formed grafted to the butadiene polymer block. This is particularly desirable to enable the use of polybutadiene homopolymer rubbers which are more cost effectively used in rubber-modified monovinylidene aromatic polymers.
摘要翻译：本发明是一种橡胶改性单亚乙烯基芳族聚合物组合物，其中橡胶是硫基硅烷链端改性弹性体聚合物。在本发明中，官能化橡胶在标准接枝聚合工艺技术中提供足够的接枝水平以制备所需的橡胶粒度分布和形态。在一系列橡胶改性单亚乙烯基芳族聚合物中，已经发现使用根据本发明的改性弹性体聚合物可以改善树脂性能，特别是透明度，表面和物理性能的组合，包括橡胶改性单亚乙烯基芳族均聚物（例如，高抗冲聚苯乙烯和共聚物（例如ABS），功能化橡胶具有提供优化的反应性接枝位点的硫基官能团，这确保在接枝聚合条件下，形成接枝到丁二烯聚合物嵌段上的单亚乙烯基芳族聚合物嵌段。特别希望使用在橡胶改性单亚乙烯基芳族聚合物中更经济有效地使用的聚丁二烯均聚物橡胶。

73. 发明授权

US07683131B2 Molding material containing a matting agent 有权
标题翻译：含有消光剂的成型材料
公开(公告)号：US07683131B2
公开(公告)日：2010-03-23
申请号：US10579843
申请日：2004-09-15
申请人： Thorsten Goldacker , Andreas Spiess , Reiner Mueller , Klaus Schultes , Uwe Numrich
发明人： Thorsten Goldacker , Andreas Spiess , Reiner Mueller , Klaus Schultes , Uwe Numrich
IPC分类号： C08J5/18 , C08L33/12 , C08L51/00 , C08L101/00 , C08L33/00 , C08F265/04 , C08F265/06
CPC分类号： C08L51/003 , C08F265/04 , C08F265/06 , C08F279/02 , C08L33/12 , C08L35/06 , C08L55/02 , C08L101/00 , C08L2205/22 , C08L2666/02 , C08L2666/04
摘要： The invention relates to a moulding composition, comprising a) 50 to 99.9% by weight of a matrix composed of a thermoplastic polymer and b) from 0.1 to 50% by weight of a matting agent in the form of a (meth)acrylate copolymer dispersed in the matrix, characterized in that the matting agent is a (meth)acrylate copolymer which has been prepared from the following monomers, b1) from 50 to 95% by weight of methyl methacrylate b2) from 5 to 50% by weight of C1-C6-alkyl acrylates b3) from 0.01 to less than 0.5% by weight of a crosslinking monomer and/or graft-linking agent having two or more ethylenically unsaturated radicals capable of free-radical polymerization, b4) from 0 to 20% by weight of one or more other, non-crosslinking ethylenically unsaturated monomers capable of free-radical polymerization, where the entirety of the constituents b1) and b2) and, where appropriate, b3) and/or b4) gives 100% by weight, and the glass transition temperature Tmg of the matting agent is at least 20° C.
摘要翻译：本发明涉及一种模塑组合物，其包含a）50-99.9重量％的由热塑性聚合物组成的基质和b）0.1至50重量％的分散在（甲基）丙烯酸酯共聚物形式的消光剂在基质中，其特征在于，所述消光剂是已经从下列单体制备的，B1）为50〜95重量％的甲基丙烯酸甲酯b2的）从5至50％（重量）C 1 -C的（甲基）丙烯酸酯共聚物丙烯酸C 6 - 烷基酯b 3）0.01至小于0.5重量％的具有两个或更多个能够进行自由基聚合的烯键式不饱和基团的交联单体和/或接枝交联剂，b4）0至20重量％一种或多种能够进行自由基聚合的其它非交联烯键式不饱和单体，其中b1）和b2）和b3）和/或b4）的总体含量为100％（重量），玻璃消光剂的转变温度Tmg的是至少20 C.

74. 发明申请

US20100063199A1 GRAFT COPOLYMER FOR TRANSPARENT THERMOPLASTIC POLYURETHANE RESIN, PREPARATION METHOD THEREOF, AND POLYURETHANE RESIN COMPOSITION CONTAINING THE SAME 有权
标题翻译：用于透明热塑性聚氨酯树脂的聚酰胺共聚物及其制备方法和含有它的聚氨酯树脂组合物
公开(公告)号：US20100063199A1
公开(公告)日：2010-03-11
申请号：US12522021
申请日：2008-01-04
申请人： Yoon-ho Kim , Geon-soo Kim , Chan-hong Lee , Hyung-jin Kim
发明人： Yoon-ho Kim , Geon-soo Kim , Chan-hong Lee , Hyung-jin Kim
IPC分类号： C08L9/10
CPC分类号： C08F279/02
摘要： The present invention relates to a graft copolymer for transparent thermoplastic polyurethane resin, a preparing method thereof and a polyurethane resin composition comprising the same, more precisely a graft copolymer for transparent thermoplastic polyurethane resin prepared by graft copolymerization of (a) 50-85 weight % of rubber latex having multi-layered structure composed of an inner layer and an outer layer comprising a conjugated diene monomer and an ethylenically unsaturated aromatic compound in which the refraction index of the inner layer is greater than that of the outer layer; and (b) 15-50 weight % of a C2-C20 vinyl monomer. The present invention provides a thermoplastic polyurethane resin composition having excellent color properties, calendaring properties, low temperature impact strength and transparency.
摘要翻译：本发明涉及一种透明热塑性聚氨酯树脂的接枝共聚物及其制备方法和包含该共聚物的聚氨酯树脂组合物，更准确地说，涉及一种透明热塑性聚氨酯树脂的接枝共聚物，其通过（a）50-85重量％的具有多层结构的橡胶胶乳，所述多层结构由内层和包含共轭二烯单体和烯属不饱和芳族化合物的外层组成，其中内层的折射率大于外层的折射率; 和（b）15-50重量％的C 2 -C 20乙烯基单体。本发明提供具有优异的着色性，压延性，低温冲击强度和透明性的热塑性聚氨酯树脂组合物。

75. 发明申请

US20090124725A1 Viscosity Modifier for Thermoplastic Polyester Resin, Thermoplastic Polyester Resin Composition Containing the Same, and Molding of the Composition 审中-公开
标题翻译：用于热塑性聚酯树脂的粘度调节剂，含有它的热塑性聚酯树脂组合物和组合物的成型
公开(公告)号：US20090124725A1
公开(公告)日：2009-05-14
申请号：US12083070
申请日：2006-09-19
申请人： Takenobu Sunagawa
发明人： Takenobu Sunagawa
IPC分类号： C08L67/02
CPC分类号： C08F279/02 , C08F212/08 , C08L25/14 , C08L51/04 , C08L67/02 , C08L2205/00 , C08F220/10 , C08L2666/02 , C08L2666/04
摘要： The present invention provides a viscosity modifier (A) for thermoplastic polyester resin obtainable by polymerizing (a) 70 to 95% by weight of an aromatic vinyl monomer, (b) 5 to 30% by weight of an alkyl acrylate having an alkyl group with 1 to 8 carbon atoms, and (c) 0 to 10% by weight of other vinyl monomers copolymerizable with both; a viscosity modifier (A′) for thermoplastic polyester resin characterized by covering 100 parts by weight of polymer particles (A-1) with 0.5 to 30 parts by weight of polymer particles (A-2), the polymer particle (A-1) are obtained by polymerizing (a) 70 to 95% by weight of an aromatic vinyl monomer, (b) 5 to 30% by weight of an alkyl acrylate having an alkyl group with 1 to 8 carbon atoms, and (c) 0 to 10% by weight of other vinyl monomers copolymerizable with both and having a glass transition temperature of 60° C. or higher and a volume-average particle diameter of 50 to 500 μm, and the polymer particles (A-2) have volume-average particle diameter of 0.01 to 0.5 μm; and a thermoplastic polyester resin composition and a molded article containing the viscosity modifier.
摘要翻译：本发明提供一种用于热塑性聚酯树脂的粘度调节剂（A），其可通过（a）70至95重量％的芳族乙烯基单体聚合而获得，（b）5-30重量％的具有烷基的丙烯酸烷基酯与 1至8个碳原子，和（c）0至10重量％可与其共聚的其它乙烯基单体; 用于热塑性聚酯树脂的粘度调节剂（A'），其特征在于用聚合物颗粒（A-2）0.5至30重量份，聚合物颗粒（A-1）覆盖100重量份聚合物颗粒（A-1）通过聚合（a）70至95重量％的芳族乙烯基单体，（b）5至30重量％的具有1至8个碳原子的烷基的丙烯酸烷基酯，和（c）0至10 重量％的可与两者共聚并具有60℃或更高的玻璃化转变温度和50-500μm的体积平均粒径的其它乙烯基单体，并且聚合物颗粒（A-2）具有体积平均粒径直径0.01〜0.5μm; 和热塑性聚酯树脂组合物和含有粘度调节剂的模塑制品。

76. 发明申请

US20090118393A1 Method of preparing thermoplastic resin having superior gloss, impact strength and whiteness 有权
标题翻译：制备具有优异光泽度，冲击强度和白度的热塑性树脂的方法
公开(公告)号：US20090118393A1
公开(公告)日：2009-05-07
申请号：US12290924
申请日：2008-11-05
申请人： Keun-hoon Yoo , Chan-hong Lee , Jin-hyoung Lee , Joo-byung Chai , Yu-sung Jung , Bong-keun Ahn , Won-deok Han
发明人： Keun-hoon Yoo , Chan-hong Lee , Jin-hyoung Lee , Joo-byung Chai , Yu-sung Jung , Bong-keun Ahn , Won-deok Han
IPC分类号： C08L9/10 , C08C3/00 , C08L51/04
CPC分类号： C08F279/04 , C08F279/02 , C08L55/02 , C08L2666/02
摘要： Disclosed is a method for preparing a thermoplastic resin with superior impact resistance, chemical resistance and processability as well as excellent gloss and whiteness. The method includes emulsion-polymerizing a conjugated diene compound monomer to prepare a rubber latex having an average particle diameter of 1,800 Å to 5,000 Å, a polymerization conversion ratio of at least 90% and a swelling index of 12 to 40, an average gel content of 70 to 95%, emulsion-polymerizing 45 to 75 parts by weight of the rubber latex with 17 to 40 parts by weight of an aromatic vinyl compound and 4 to 20 parts by weight of a vinyl cyanide compound to prepare a graft copolymer latex, and coagulating the graft copolymer latex with a coagulant at 60 to 80° C., and aging the graft copolymer latex at 80 to 99° C. to obtain a graft copolymer powder.
摘要翻译：公开了一种制备具有优异的耐冲击性，耐化学性和加工性以及优异的光泽和白度的热塑性树脂的方法。该方法包括使共轭二烯化合物单体乳液聚合，制备平均粒径为1800至5000的聚合转化率至少为90％，溶胀指数为12至40的橡胶胶乳，平均凝胶含量 70〜95％，乳液聚合45〜75重量份的橡胶胶乳和17〜40重量份的芳香族乙烯基化合物和4〜20重量份的乙烯基氰化合物，制备接枝共聚物胶乳，并在60至80℃下用凝结剂凝结接枝共聚物胶乳，并在80至99℃下老化接枝共聚物胶乳，得到接枝共聚物粉末。

77. 发明申请

US20090110943A1 Thermoplastic Resin Composition and Composite Molded Product 有权
标题翻译：热塑性树脂组合物和复合模制品
公开(公告)号：US20090110943A1
公开(公告)日：2009-04-30
申请号：US12227064
申请日：2007-05-08
申请人： Kazuo Nishimoto , Katsuya Furushige , Koji Hirata , Yoshito Nagao
发明人： Kazuo Nishimoto , Katsuya Furushige , Koji Hirata , Yoshito Nagao
IPC分类号： B32B27/08 , C08L33/20 , C08L51/00 , C08L33/10 , C08L53/00
CPC分类号： C08L55/02 , C08F279/02 , C08F279/04 , C08L25/12 , C08L33/20 , C08L51/003 , C08L51/04 , C08L53/00 , C08L2205/02 , C08L2205/03 , Y10T428/31909 , C08L2666/24 , C08L2666/04 , C08L2666/06 , C08L2666/02
摘要： A thermoplastic resin composition that has high chemical resistance, excellent appearance of a molded product thereof, and, as a surface layer material, good adhesion to a base material resin, particularly a PS resin or its waste resin, and that can provide a composite molded product having excellent processibility (for example, chipping resistance) and high durability (for example, heat-cycle resistance), and a composite molded product including the thermoplastic resin composition as a surface layer material. A thermoplastic resin composition that includes 100 parts by mass of a first vinyl (co)polymer (I) that is produced by (co)polymerization of at least one monomer component selected from the group consisting of aromatic vinyl compounds, vinyl cyanide compounds, and other vinyl monomers copolymerizable with these compounds, and 1 to 100 parts by mass of a vinyl copolymer (II) that is produced by copolymerization of a vinyl cyanide compound and another vinyl monomer copolymerizable with the vinyl cyanide compound and in which the content of the vinyl cyanide compound component in an acetone soluble fraction of the copolymer ranges from 0.1% to 15% by mass.
摘要翻译：具有高耐化学性，优异外观的成型体以及表层材料与基材树脂，特别是PS树脂或其废树脂的良好粘附性的热塑性树脂组合物，并且可以提供复合成型具有优异的加工性（例如耐崩裂性）和高耐久性（例如耐热循环性）的产品，以及包含作为表层材料的热塑性树脂组合物的复合成型体。一种热塑性树脂组合物，其包含100质量份的第一乙烯基（共）聚合物（I），其通过选自由芳族乙烯基化合物，乙烯基氰化合物和可与这些化合物共聚的其它乙烯基单体和1〜100质量份的乙烯基共聚物（II），其通过乙烯基氰化合物与可与乙烯基氰化合物共聚的其它乙烯基单体共聚而制备，其中乙烯基共聚物丙酮可溶部分中的氰化物化合物成分的含量为0.1〜15质量％。

78. 发明申请

US20090104466A1 RUBBER-REINFORCED RESIN, ANTI-STATIC RESIN COMPOSITION, MOLDED ARTICLE AND LAMINATE 失效
标题翻译：橡胶增强树脂，防静电树脂组合物，模制品和层压板
公开(公告)号：US20090104466A1
公开(公告)日：2009-04-23
申请号：US12063116
申请日：2006-08-23
申请人： Norifumi Sumimoto , Wataru Kakuno
发明人： Norifumi Sumimoto , Wataru Kakuno
IPC分类号： B32B27/08 , C08L33/06 , C08L33/24
CPC分类号： C08F279/06 , B32B25/08 , B32B25/14 , C08F279/02 , C08F279/04 , C08F287/00 , C08L9/00 , C08L33/18 , C08L51/04 , C08L53/025 , C08L55/02 , Y10T428/31786 , Y10T428/31855 , Y10T428/31931 , Y10T428/31935 , C08L2666/08 , C08L2666/02 , C08L2666/04 , C08L2666/14
摘要： The objective of the present invention is to provide a rubber-reinforced resin which, when formed into a molded article, can prevent contamination or soiling of an article contacted with the molded article or a device on the periphery of the molded article and is excellent in impact resistance and transparency, and an anti-static resin composition which is excellent in impact resistance and anti-static properties. The present rubber-reinforced resin comprises a rubber-reinforced copolymeric resin produced by polymerization of 20 to 95 parts by mass of monomer components comprising methyl methacrylate, an aromatic vinyl compound and a cyanidated vinyl compound in the presence of a rubbery polymer having a predetermined volume-average particle diameter, or comprises a mixture of the rubber-reinforced copolymeric resin and a copolymer of the above-mentioned monomer components. Additionally, the present anti-static resin composition comprises the above-mentioned rubber-reinforced resin and a polymer type anti-static agent, wherein the rubbery polymer is contained in an amount from 5% to 40% by mass. In each of the rubber-reinforced resin and the anti-static resin composition, the total amount of substances detected at a retention time of 10 to 24 minutes is 20,000 μg or less per gram of the sample as determined by pyrolysis GC analysis.
摘要翻译：本发明的目的是提供一种橡胶增强树脂，其在形成成型品时能够防止与模制品接触的制品或模制品的周边上的装置的污染或污染，并且在耐冲击性和透明性，以及抗冲击性和抗静电性优异的抗静电性树脂组合物。本发明的橡胶增强树脂包括通过在具有预定体积的橡胶状聚合物的存在下聚合20至95质量份包含甲基丙烯酸甲酯，芳族乙烯基化合物和氰化乙烯基化合物的单体组分而制备的橡胶增强共聚树脂平均粒径，或包含橡胶增强共聚树脂和上述单体成分的共聚物的混合物。此外，本发明的抗静电树脂组合物包含上述橡胶增强树脂和聚合物型防静电剂，其中橡胶状聚合物的含量为5〜40质量％。在每种橡胶增强树脂和抗静电树脂组合物中，通过热解GC分析测定，每10克样品中保留时间为10至24分钟时检测的物质总量为20,000杯或更少。

79. 发明授权

US07514502B2 Thermoplastic resin composition having improved external appearance and excellent weatherability 有权
标题翻译：具有改善的外观和优异耐候性的热塑性树脂组合物
公开(公告)号：US07514502B2
公开(公告)日：2009-04-07
申请号：US10560014
申请日：2003-11-06
申请人： Dong-sung Kim , Chan-hong Lee , Seong-lyong Kim , Han-jong You
发明人： Dong-sung Kim , Chan-hong Lee , Seong-lyong Kim , Han-jong You
IPC分类号： C08L51/04
CPC分类号： C08F265/04 , C08F279/02 , C08F279/04 , C08F285/00 , C08L13/00 , C08L23/04 , C08L25/12 , C08L25/14 , C08L25/16 , C08L33/06 , C08L33/08 , C08L35/06 , C08L51/003 , C08L51/04 , C08L51/06 , C08L55/02 , C08L2205/02 , C08L2205/03 , C08L2205/035 , C08L2666/24 , C08L2666/04 , C08L2666/02 , C08L51/00
摘要： The present invention relates to an acrylonitrile (ASA) type thermoplastic resin composition with excellent weatherability and appearance properties, and more particularly, to an acrylate-styrene-acrylonitrile type thermoplastic resin composition comprising a) an acrylate-styrene-acrylonitrile graft copolymer; b) a butadienc-acrylonitrile methylmethacrylate graft copolymer; c) a copolymer of aromatic vinyl compound and vinylcyanide compound; and d) an alkyl acrylate copolymer, which has remarkably improved appearance properties such as scratch resistance, color (color stability) and gloss as well as excellent basic properties and weatherability.
摘要翻译：本发明涉及具有优异的耐候性和外观性能的丙烯腈（ASA）型热塑性树脂组合物，更具体地说，涉及丙烯酸酯 - 苯乙烯 - 丙烯腈型热塑性树脂组合物，其包含a）丙烯酸酯 - 苯乙烯 - 丙烯腈接枝共聚物; b）丁二烯 - 丙烯腈甲基丙烯酸甲酯接枝共聚物; c）芳族乙烯基化合物和乙烯基氰化合物的共聚物; 和d）丙烯酸烷基酯共聚物，其具有显着改善的外观性能如耐擦伤性，颜色（颜色稳定性）和光泽以及优异的基本性能和耐候性。

80. 发明申请

US20080293517A1 CASTABLE LIQUID RUBBER COMPOSITIONS FOR GOLF BALLS 审中-公开
标题翻译：用于高尔夫球的可溶性液体橡胶组合物
公开(公告)号：US20080293517A1
公开(公告)日：2008-11-27
申请号：US12143894
申请日：2008-06-23
申请人： William E. Morgan
发明人： William E. Morgan
IPC分类号： A63B37/00
CPC分类号： C08K5/103 , C08F279/02 , C08K5/053 , C08K5/09 , C08K5/098 , C08K5/14 , C08L51/04 , C08L9/00 , C08L2666/02
摘要： A golf ball comprising a layer made from a liquid rubber composition is disclosed. A castable liquid polybutadiene is the preferred principal rubber component. The molecular weight of the castable liquid polybutadiene is at least about 1,000 and the castable liquid polybutadiene is in a liquid state at room temperature. The castable liquid rubber layer can be a cover layer, a casing layer, an intermediate layer or a core layer.
摘要翻译：公开了一种包括由液体橡胶组合物制成的层的高尔夫球。可浇铸液体聚丁二烯是优选的主要橡胶组分。可浇注液体聚丁二烯的分子量至少约为1000，浇注液体聚丁二烯在室温下处于液态。浇注液体橡胶层可以是覆盖层，套管层，中间层或芯层。

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