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1. 发明授权

US6066705A Vapor phase synthesis of cis-1, 4-Polyisoprene 失效
标题翻译：顺式-1,4-聚异戊二烯的气相合成
公开(公告)号：US6066705A
公开(公告)日：2000-05-23
申请号：US850314
申请日：1997-05-02
申请人： Nissim Calderon , Kenneth Floyd Castner , Howard Allen Colvin , Joel Muse, Jr.
发明人： Nissim Calderon , Kenneth Floyd Castner , Howard Allen Colvin , Joel Muse, Jr.
IPC分类号： B01J8/10 , B01J8/24 , B01J8/36 , C08F2/06 , C08F2/34 , C08F4/64 , C08F4/70 , C08F36/04 , C08F136/04 , C08F136/06 , C08F136/08 , G09F13/28 , G09F21/06
CPC分类号： B01J8/1827 , B01J8/10 , B01J8/24 , B01J8/36 , C08F136/04 , C08F136/06 , C08F136/08 , C08F36/04 , G09F13/28 , G09F21/06 , B01J2208/00256 , B01J2208/00274 , B01J2219/00108 , B01J2219/182 , Y10S526/901 , Y10S526/903
摘要： By utilizing the vapor phase polymerization techniques of the present invention, numerous distinct and highly beneficial advantages are realized. For instance, cis-1,4-polyisoprene rubber and high cis-1,4-polybutadiene rubber having a consistent and controllable molecular weight can be easily and practically prepared without utilizing a solvent. The subject invention more specifically discloses a method for vapor phase polymerizing isoprene into cis-1,4-polyisoprene in a process comprising the steps of:(1) charging into a reaction zone said isoprene and a preformed catalyst system which is made by reacting an organoaluminum compound with titanium tetrachloride, preferably in the presence of at least one ether; wherein the isoprene is maintained in the vapor phase in said reaction zone by a suitable combination of temperature and pressure;(2) allowing said isoprene to polymerize into cis-1,4-polyisoprene at a temperature within the range of about 35.degree. C. to about 70.degree. C.; and(3) withdrawing said cis-1,4-polyisoprene from said reaction zone. It has been determined that gel formation can be reduced by conducting the polymerization of isoprene monomer in the presence of a diarylamine, such as para-styrenated diphenylamine.
摘要翻译：通过利用本发明的气相聚合技术，实现了许多显着和非常有益的优点。例如，具有一致和可控分子量的顺式-1,4-聚异戊二烯橡胶和高顺式-1,4-聚丁二烯橡胶可以在不使用溶剂的情况下容易且实际地制备。本发明更具体地公开了一种将异戊二烯气相聚合成顺式-1,4-聚异戊二烯的方法，包括以下步骤：（1）将反应区中的所述异戊二烯和预制的催化剂体系装入反应区，有机铝化合物与四氯化钛，优选在至少一种醚存在下进行; 其中所述异戊二烯通过温度和压力的适当组合保持在所述反应区中的气相中; （2）允许所述异戊二烯在约35℃至约70℃的温度范围内聚合成顺式-1,4-聚异戊二烯; 和（3）从所述反应区中取出所述顺式-1,4-聚异戊二烯。已经确定通过在二芳基胺如对苯二甲酸二苯胺存在下进行异戊二烯单体的聚合可以降低凝胶形成。

2. 发明授权

US5859156A Vapor phase synthesis of rubbery polymers 失效
标题翻译：橡胶状聚合物的气相合成
公开(公告)号：US5859156A
公开(公告)日：1999-01-12
申请号：US990251
申请日：1997-12-15
申请人： Nissim Calderon , Joel Muse, Jr. , Howard Allen Colvin , Kenneth Floyd Castner
发明人： Nissim Calderon , Joel Muse, Jr. , Howard Allen Colvin , Kenneth Floyd Castner
IPC分类号： B01J8/10 , B01J8/24 , B01J8/36 , C08F2/34 , C08F36/04 , C08F136/04 , C08F136/06 , C08F136/08
CPC分类号： B01J8/1827 , B01J8/10 , B01J8/24 , B01J8/36 , C08F136/04 , C08F136/06 , C08F136/08 , C08F36/04 , B01J2208/00256 , B01J2208/00274 , B01J2219/00108 , B01J2219/182 , Y10S526/901 , Y10S526/903
摘要： By utilizing the vapor phase polymerization techniques of the present invention, numerous distinct and highly beneficial advantages are realized. For instance, cis-1,4-polyisoprene rubber and high cis-1,4-polybutadiene rubber having a consistent and controllable molecular weight can be easily and practically prepared without utilizing a solvent. The subject invention more specifically discloses a method for vapor phase polymerizing isoprene into cis-1,4-polyisoprene in a process comprising the steps of:(1) charging into a reaction zone said isoprene and a preformed catalyst system which is made by reacting an organoaluminum compound with titanium tetrachloride, preferably in the presence of at least one ether; wherein the isoprene is maintained in the vapor phase in said reaction zone by a suitable combination of temperature and pressure;(2) allowing said isoprene to polymerize into cis-1,4-polyisoprene in said reaction zone at a temperature within the range of about 0.degree. C. to about 100.degree. C. in the presence of a diarylamine, wherein said reaction zone is a horizontal, stirred reactor of substantially circular cross section containing a centrally-located drive shaft extending longitudinally through said reactor to which are attached a plurality of adjacently located paddles, which paddles cause essentially no forward or backward movement of the cis-1,4-polyisoprene contained in said reactor; and(3) withdrawing said cis-1,4-polyisoprene from said reaction zone.
摘要翻译：通过利用本发明的气相聚合技术，实现了许多显着和非常有益的优点。例如，具有一致和可控分子量的顺式-1,4-聚异戊二烯橡胶和高顺式-1,4-聚丁二烯橡胶可以在不使用溶剂的情况下容易且实际地制备。本发明更具体地公开了一种将异戊二烯气相聚合成顺式-1,4-聚异戊二烯的方法，包括以下步骤：（1）将反应区中的所述异戊二烯和预制的催化剂体系装入反应区，有机铝化合物与四氯化钛，优选在至少一种醚存在下进行; 其中所述异戊二烯通过温度和压力的适当组合保持在所述反应区中的气相中; （2）在二芳基胺的存在下，使所述异戊二烯在所述反应区中在约0℃至约100℃的温度范围内聚合成顺式-1,4-聚异戊二烯，其中所述反应区为一个基本圆形横截面的水平搅拌的反应器，其包含一个中心定位的驱动轴，其纵向延伸穿过所述反应器，所述反应器附接有多个相邻的桨叶，该桨叶基本上不引起顺式-1,4- 所述反应器中含有的聚异戊二烯; 和（3）从所述反应区中取出所述顺式-1,4-聚异戊二烯。

3. 发明授权

US5652304A Vapor phase synthesis of rubbery polymers 失效
标题翻译：橡胶状聚合物的气相合成
公开(公告)号：US5652304A
公开(公告)日：1997-07-29
申请号：US663803
申请日：1996-06-28
申请人： Nissim Calderon , Kenneth Floyd Castner , Howard Allen Colvin , Joel Muse, Jr.
发明人： Nissim Calderon , Kenneth Floyd Castner , Howard Allen Colvin , Joel Muse, Jr.
IPC分类号： B01J8/10 , B01J8/24 , B01J8/36 , C08F2/06 , C08F2/34 , C08F4/64 , C08F4/70 , C08F36/04 , C08F136/04 , C08F136/06 , C08F136/08 , G09F13/28 , G09F21/06
CPC分类号： B01J8/1827 , B01J8/10 , B01J8/24 , B01J8/36 , C08F136/04 , C08F136/06 , C08F136/08 , C08F36/04 , G09F13/28 , G09F21/06 , B01J2208/00256 , B01J2208/00274 , B01J2219/00108 , B01J2219/182 , Y10S526/901 , Y10S526/903
摘要： By utilizing the vapor phase polymerization techniques of the present invention, numerous distinct and highly beneficial advantages are realized. For instance, cis-1,4-polyisoprene rubber and high cis-1,4-polybutadiene rubber having a consistent and controllable molecular weight can be easily and practically prepared without utilizing a solvent. The subject invention more specifically discloses a method for vapor phase polymerizing isoprene into cis-1,4-polyisoprene in a process comprising the steps of:(1) charging into a reaction zone said isoprene and a preformed catalyst system which is made by reacting an organoaluminum compound with titanium tetrachloride, preferably in the presence of at least one ether; wherein the isoprene is maintained in the vapor phase in said reaction zone by a suitable combination of temperature and pressure;(2) allowing said isoprene to polymerize into cis-1,4-polyisoprene at a temperature within the range of about 35.degree. C. to about 70.degree. C.; and(3) withdrawing said cis-1,4-polyisoprene from said reaction zone. It has been determined that gel formation can be reduced by conducting the polymerization of isoprene monomer in the presence of a diarylamine, such as para-styrenated diphenylamine.
摘要翻译：通过利用本发明的气相聚合技术，实现了许多显着和非常有益的优点。例如，具有一致和可控分子量的顺式-1,4-聚异戊二烯橡胶和高顺式-1,4-聚丁二烯橡胶可以在不使用溶剂的情况下容易且实际地制备。本发明更具体地公开了一种将异戊二烯气相聚合成顺式-1,4-聚异戊二烯的方法，包括以下步骤：（1）将反应区中的所述异戊二烯和预制的催化剂体系装入反应区，有机铝化合物与四氯化钛，优选在至少一种醚存在下进行; 其中所述异戊二烯通过温度和压力的适当组合保持在所述反应区中的气相中; （2）允许所述异戊二烯在约35℃至约70℃的温度范围内聚合成顺式-1,4-聚异戊二烯; 和（3）从所述反应区中取出所述顺式-1,4-聚异戊二烯。已经确定通过在二芳基胺如对苯二甲酸二苯胺存在下进行异戊二烯单体的聚合可以降低凝胶形成。

4. 发明授权

US07790799B2 Reinforced silica/elastomer composite 失效
标题翻译：增强二氧化硅/弹性体复合材料
公开(公告)号：US07790799B2
公开(公告)日：2010-09-07
申请号：US11891399
申请日：2007-08-10
申请人： Howard Allen Colvin , Sun Lin Chen
发明人： Howard Allen Colvin , Sun Lin Chen
IPC分类号： B60C1/00 , C08K3/34 , C08K3/04 , C08K9/00
CPC分类号： B60C1/0016 , C08K3/36 , Y02T10/862 , Y10T152/10513 , C08L21/00
摘要： This invention is based upon the discovery that elongated silica has superior characteristics for reinforcing rubbery elastomers as compared to conventional silica. More specifically, elongated silica provides a higher level of reinforcement for elastomers at the same level of loading. Accordingly, elongated silica can be employed to attain an equivalent level of reinforcement at a lower level of loading. This results in lower weight compositions and potential cost savings. Rubber compounds that are reinforced with elongated silica offer significant advantages in tires including reduced rolling resistance, increased tread life, and, of course, reduced weight. The subject invention more specifically relates to a tire having a tread wherein said tread is comprised of a silica reinforced rubber composition, wherein the silica reinforced rubber composition is comprised of (1) a rubbery polymer and (2) an elongated silica, wherein the elongated silica has a width that is within the range of about 5 nm to about 40 nm, and wherein the elongated silica has a length of about 40 nm to about 300 nm. The present invention also discloses a process for preparing a silica reinforced rubber composition which comprises (1) adding an elongated silica to a latex of a rubbery polymer, and (2) recovering the silica reinforced rubber composition from the latex.
摘要翻译：本发明基于以下发现：与常规二氧化硅相比，细长二氧化硅具有用于增强橡胶弹性体的优异特性。更具体地说，细长二氧化硅在相同的加载水平下为弹性体提供了更高水平的增强。因此，可以使用细长的二氧化硅以在较低的负载水平下获得相当的钢筋水平。这导致较低的重量组成和潜在的成本节省。用细长二氧化硅增强的橡胶化合物在轮胎中具有显着的优点，包括降低的滚动阻力，增加的胎面寿命，当然减轻重量。本发明更具体地涉及一种具有胎面的轮胎，其中所述胎面由二氧化硅增强橡胶组合物组成，其中所述二氧化硅增强橡胶组合物包括（1）橡胶状聚合物和（2）细长二氧化硅，其中所述细长的二氧化硅具有在约5nm至约40nm的范围内的宽度，并且其中所述细长二氧化硅具有约40nm至约300nm的长度。本发明还公开了一种制备二氧化硅增强橡胶组合物的方法，其包括（1）将细长二氧化硅加入到橡胶状聚合物的胶乳中，和（2）从胶乳中回收二氧化硅增强的橡胶组合物。

5. 发明授权

US07101922B2 Method for preparing elastomer/silica composite 失效
标题翻译：制备弹性体/二氧化硅复合材料的方法
公开(公告)号：US07101922B2
公开(公告)日：2006-09-05
申请号：US10308596
申请日：2002-12-02
申请人： Sun-Lin Chen , Howard Allen Colvin
发明人： Sun-Lin Chen , Howard Allen Colvin
IPC分类号： C08J3/215
CPC分类号： C08J3/215 , B60C1/00 , B60C1/0016 , C08J3/005 , C08J3/226 , C08J2309/00 , C08J2321/00 , C08J2409/00 , C08K5/548 , C08L21/00
摘要： This invention relates to the preparation of a silica reinforced elastomer via preparation of a silica-elastomer masterbatch as a composite of synthetic silica and an emulsion polymerization prepared synthetic elastomer. Such masterbatch is prepared by introducing such silica and a silane into a latex of the synthetic elastomer and recovering the composite thereof The invention further includes a rubber composition of at least two elastomers wherein at least one of said elastomers is such masterbatched composite. A tire having a component of such rubber composition, particularly a tire tread, is specifically contemplated.
摘要翻译：本发明涉及二氧化硅增强弹性体的制备，其通过制备二氧化硅 - 弹性体母料作为合成二氧化硅和乳液聚合制备的合成弹性体的复合物。这种母料通过将这种二氧化硅和硅烷引入合成弹性体的胶乳中并回收其复合物来制备。本发明还包括至少两种弹性体的橡胶组合物，其中至少一种所述弹性体是这种母料复合材料。特别考虑了具有这种橡胶组合物的组分，特别是轮胎胎面的轮胎。

6. 发明授权

US06469104B1 Emulsion styrene-butadiene rubber 失效
标题翻译：乳液丁苯橡胶
公开(公告)号：US06469104B1
公开(公告)日：2002-10-22
申请号：US09264937
申请日：1999-03-09
申请人： Howard Allen Colvin , Michael Leslie Senyek
发明人： Howard Allen Colvin , Michael Leslie Senyek
IPC分类号： C08L2502
CPC分类号： C08L9/06 , B29L2030/002 , B60C1/0016 , C08F236/10 , Y02T10/862 , Y10T152/10495 , C08F2/22 , C08L2666/08 , C08F2/38
摘要： This invention discloses an emulsion styrene-butadiene rubber (SBR) that can be employed in manufacturing tire tread formulations that have rolling resistance and treadwear characteristics that are similar to those made with solution SBR but with improved traction characteristics. Thus, the emulsion SBR of this invention is superior in many respects for use in tire tread compounds to conventional solution SBR and conventional emulsion SBR. This invention more specifically discloses a styrene-butadiene rubber composition which is comprised of repeat units which are derived from styrene and 1,3-butadiene, wherein the styrene-butadiene rubber composition has a number average molecular weight as determined by thermal field flow fractionation which is within the range of about 50,000 to 150,000, and wherein the styrene-butadiene rubber has a light scattering to refractive index ratio which is within the range of 1.8 to 3.9. The subject invention further reveals a styrene-butadiene rubber composition which is comprised of repeat units which are derived from styrene and 1,3-butadiene, wherein a plot of log frequency versus storage modulus of the styrene-butadiene rubber composition crosses over a plot of log frequency versus loss modulus of the styrene-butadiene rubber composition at a log frequency within the range of 0.001 radians per second to 100 radians per second when conducted at 120° C. using parallel plate geometry in the dynamic oscillation frequency sweep of the styrene-butadiene rubber.
摘要翻译：本发明公开了一种乳液丁苯橡胶（SBR），其可用于制造具有滚动阻力和胎面特性的轮胎胎面配方，其类似于用溶液SBR制成但具有改进的牵引特性的轮胎胎面制剂。因此，本发明的乳液SBR在许多方面在用于轮胎胎面胶料与常规溶液SBR和常规乳液SBR方面是优异的。本发明更具体地公开了一种苯乙烯 - 丁二烯橡胶组合物，其由衍生自苯乙烯和1,3-丁二烯的重复单元组成，其中所述苯乙烯 - 丁二烯橡胶组合物具有通过热场流分馏确定的数均分子量，在约50,000至150,000的范围内，并且其中所述苯乙烯 - 丁二烯橡胶的光散射与折射率之比在1.8至3.9的范围内。本发明进一步揭示了苯乙烯 - 丁二烯橡胶组合物，其由衍生自苯乙烯和1,3-丁二烯的重复单元组成，其中苯乙烯 - 丁二烯橡胶组合物的对数频率对储能模量的曲线与苯乙烯 - 丁二烯橡胶组合物的对数频率与损耗模量的对数频率在0.001弧度/秒至100弧度/秒的范围内，当在120℃下进行时，使用平行板几何形状在苯乙烯 - 丁二烯橡胶。

7. 发明授权

US07288602B2 Silica filled multi-viscoelastic response rubber 失效
标题翻译：硅胶填充多粘弹性橡胶
公开(公告)号：US07288602B2
公开(公告)日：2007-10-30
申请号：US11054676
申请日：2005-02-09
申请人： Georges Marcel Victor Thielen , Howard Allen Colvin
发明人： Georges Marcel Victor Thielen , Howard Allen Colvin
IPC分类号： C08F36/06 , C08K3/22
CPC分类号： C08K5/548 , B29L2030/002 , B60C1/0016 , C08F236/10 , C08L9/06 , C08L21/00 , C08F2/22
摘要： The present invention relates to silica filled multi-viscoelastic response rubber which is thermomechanically mixed with an organosilicon compound during the non-productive mix stage and zinc oxide is added during the productive stage of mixing.
摘要翻译：本发明涉及在非生产性混合阶段中与有机硅化合物热机械混合的二氧化硅填充的多粘弹性响应橡胶，并且在混合生产阶段加入氧化锌。

8. 发明授权

US06573315B1 Modification of asphalt cement 失效
公开(公告)号：US06573315B1
公开(公告)日：2003-06-03
申请号：US09712587
申请日：2000-11-14
申请人： Howard Allen Colvin , Edwin Gresham Moore
发明人： Howard Allen Colvin , Edwin Gresham Moore
IPC分类号： C08T9500
CPC分类号： E01C7/267 , C08J11/22 , C08J2321/00 , C08L9/00 , C08L95/00 , E01C7/265 , Y02W30/706 , C08L2666/08
摘要： This invention is based upon the discovery that a polydiene rubber that is comprised of repeat units that are derived from a conjugated diene monomer and sulfur can be used to improved the force ductility, elastic recovery, toughness and tenacity of asphalt cement. The polydiene rubber that is comprised of repeat units that are derived from a conjugated diene monomer and sulfur also exhibits excellent compatibility with asphalt. The repeat units in the polydiene rubber that are derived from sulfur are in the backbone of the polymer. These repeat units that are derived from sulfur typically contain from 2 to 8 sulfur atoms (—Sn—). The subject invention more specifically relates to a modified asphalt cement which is comprised of (i) from about 90 weight percent to about 99 weight percent asphalt; (ii) from about 1 weight percent to about 10 weight percent of a polydiene rubber that is comprised of repeat units that are derived from a conjugated diene monomer and sulfur. The present invention also reveals an asphalt concrete which is comprised of (A) from about 90 weight percent to about 99 weight percent of an aggregate and (B) from about 1 weight percent to about 10 weight percent of a modified asphalt cement which is comprised of (i) from about 90 weight percent to about 99 weight percent asphalt; (ii) from about 1 weight percent to about 10 weight percent of a polydiene rubber that is comprised of repeat units that are derived from a conjugated diene monomer and sulfur. The present invention also discloses a process for preparing a modified asphalt cement which comprises (1) blending from about 1 to about 10 parts by weight of a polydiene rubber that is comprised of repeat units that are derived from a conjugated diene monomer and sulfur into from about 90 to about 99 parts by weight of asphalt at a temperature which is within the range of about 130° to about 230° C. to produce a polymer-asphalt blend; and (2) mixing from about 0.1 to about 3 parts by weight of sulfur into the polymer-asphalt blend to produce the modified asphalt cement.

9. 发明授权

US06458884B1 Emulsion styrene-butadiene rubber 失效
公开(公告)号：US06458884B1
公开(公告)日：2002-10-01
申请号：US09690555
申请日：2000-10-17
申请人： Howard Allen Colvin , Michael Leslie Senyek
发明人： Howard Allen Colvin , Michael Leslie Senyek
IPC分类号： C08L5300
CPC分类号： C08L9/06 , B29L2030/002 , B60C1/0016 , C08F236/10 , Y02T10/862 , Y10T152/10495 , C08F2/22 , C08L2666/08 , C08F2/38
摘要： This invention discloses an emulsion styrene-butadiene rubber (SBR) that can be employed in manufacturing tire tread formulations that have rolling resistance and treadwear characteristics that are similar to those made with solution SBR but with improved traction characteristics. Thus, the emulsion SBR of this invention is superior in many respects for use in tire tread compounds to conventional solution SBR and conventional emulsion SBR. This invention more specifically discloses a styrene-butadiene rubber composition which is comprised of repeat units which are derived from styrene and 1,3-butadiene, wherein the styrene-butadiene rubber composition has a number average molecular weight as determined by thermal field flow fractionation which is within the range of about 50,000 to 150,000, and wherein the styrene-butadiene rubber has a light scattering to refractive index ratio which is within the range of 1.8 to 3.9. The subject invention further reveals a styrene-butadiene rubber composition which is comprised of repeat units which are derived from styrene and 1,3-butadiene, wherein a plot of log frequency versus storage modulus of the styrene-butadiene rubber composition crosses over a plot of log frequency versus loss modulus of the styrene-butadiene rubber composition at a log frequency within the range of 0.001 radians per second to 100 radians per second when conducted at 120° C. using parallel plate geometry in the dynamic oscillation frequency sweep of the styrene-butadiene rubber.

10. 发明授权

US06455655B1 Emulsion styrene-butadiene rubber 失效
标题翻译：乳液丁苯橡胶
公开(公告)号：US06455655B1
公开(公告)日：2002-09-24
申请号：US09915246
申请日：2001-07-25
申请人： Howard Allen Colvin , Michael Leslie Senyek, Jr.
发明人： Howard Allen Colvin , Michael Leslie Senyek, Jr.
IPC分类号： C08F22012
CPC分类号： C08C1/14 , C08L9/00 , C08L9/08 , Y02T10/862 , C08L2666/08
摘要： This invention discloses an emulsion styrene-butadiene rubber (SBR) that can be employed in manufacturing tire tread formulations that have rolling resistance and treadwear characteristics that are similar to those made with solution SBR but with improved traction characteristics. Thus, the emulsion SBR of this invention is superior in many respects for use in tire tread compounds to conventional solution SBR and conventional emulsion SBR. This invention more specifically discloses a styrene-butadiene rubber composition which is comprised of repeat units which are derived from styrene, 1,3-butadiene, and a hydroxy alkyl acrylate monomer, wherein the styrene-butadiene rubber composition has a number average molecular weight as determined by field flow fractionation which is within the range of about 50,000 to 150,000, and wherein the styrene-butadiene rubber has a light scattering to refractive index ratio which is within the range of 1.8 to 3.9. The subject invention further reveals a styrene-butadiene rubber composition which is comprised of repeat units which are derived from styrene, 1,3-butadiene, and a hydroxy alkyl acrylate monomer, wherein a plot of log frequency versus elastic modulus of the styrene-butadiene rubber composition crosses over a plot of log frequency versus loss modulus of the styrene-butadiene rubber composition at a frequency within the range of 0.001 radians per second to 100 radians per second when conducted at 120° C. using parallel plate geometry in the dynamic oscillation frequency sweep of the styrene-butadiene rubber. The hydroxy alkyl acrylate monomer is preferably hydroxypropylmethacrylate.
摘要翻译：本发明公开了一种乳液丁苯橡胶（SBR），其可用于制造具有滚动阻力和胎面特性的轮胎胎面配方，其类似于用溶液SBR制成但具有改进的牵引特性的轮胎胎面制剂。因此，本发明的乳液SBR在许多方面在用于轮胎胎面胶料与常规溶液SBR和常规乳液SBR方面是优异的。本发明更具体地公开了一种苯乙烯 - 丁二烯橡胶组合物，其由衍生自苯乙烯，1,3-丁二烯和丙烯酸羟烷基酯单体的重复单元组成，其中苯乙烯 - 丁二烯橡胶组合物的数均分子量为通过在约50,000至150,000范围内的场流分级确定，并且其中所述苯乙烯 - 丁二烯橡胶的光散射与折射率之比在1.8至3.9的范围内。本发明还揭示了由苯乙烯，1,3-丁二烯和丙烯酸羟烷基酯单体衍生的重复单元组成的苯乙烯 - 丁二烯橡胶组合物，其中苯乙烯 - 丁二烯的对数频率对弹性模量曲线橡胶组合物在120℃下进行的频率范围为0.001弧度/秒至100弧度/秒时，在动态振荡中使用平行板几何形状，在丁苯橡胶组合物的对数频率对损耗模量的曲线上交叉丁苯橡胶的频率扫描。丙烯酸羟烷基酯单体优选为甲基丙烯酸羟丙酯。

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