Vapor phase synthesis of rubbery polymers
    1.
    发明授权
    Vapor phase synthesis of rubbery polymers 失效
    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

    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。

    Vapor phase synthesis of rubbery polymers
    2.
    发明授权
    Vapor phase synthesis of rubbery polymers 失效
    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

    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。

    Vapor phase synthesis of cis-1, 4-Polyisoprene
    3.
    发明授权
    Vapor phase synthesis of cis-1, 4-Polyisoprene 失效
    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

    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。

    Polymeric materials derived from ring-opening polymerization of
1,5-cyclooctadiene
    5.
    发明授权
    Polymeric materials derived from ring-opening polymerization of 1,5-cyclooctadiene 失效
    衍生自1,5-环辛二烯的开环聚合的聚合物

    公开(公告)号:US3932373A

    公开(公告)日:1976-01-13

    申请号:US448149

    申请日:1974-03-04

    申请人: Nissim Calderon

    发明人: Nissim Calderon

    IPC分类号: C08G61/08 C08F132/06

    CPC分类号: C08G61/08

    摘要: These polymers are characterized as having a structure of polyalkenemers in which the double bonds are of the cis and trans vinyl type configuration and no double bonds are of the 1,2 type configuration. The polymers are further characterized by repeating units of--CH.sub.2 --CH=CH--CH.sub.2 --CH.sub.2 --CH=CH--CH.sub.2 --in which at least 75 percent of the vinyl double bonds are of the cis type configuration and none of the double bonds are of the 1,2-type configuration.

    摘要翻译: 这些聚合物的特征在于具有多烯烃结构,其中双键是顺式和反式乙烯基型构型,没有双键是1,2型构型。 聚合物的进一步特征在于-CH 2 -CH = CH-CH 2 -CH 2 -CH = CH-CH 2 - 的重复单元,其中至少75%的乙烯基双键是顺式构型,并且没有一个双键是 的1,2型配置。

    Method of preparing trans polybutadiene blend for use in tires
    6.
    发明授权
    Method of preparing trans polybutadiene blend for use in tires 失效
    制备用于轮胎的反式聚丁二烯共混物的方法

    公开(公告)号:US5753761A

    公开(公告)日:1998-05-19

    申请号:US775050

    申请日:1996-12-27

    摘要: The present invention relates to the utilization of trans 1,4-polybutadiene resin having a melting point of at least 30.degree. C. in rubber compositions. The invention, in one aspect, relates to replacing, or at least partially replacing, natural rubber with a pre-blend of trans 1,4-polybutadiene resin and synthetic cis 1,4-polyisoprene rubber. The invention particularly relates to preparation and utilization of a pre-blend of trans 1,4-polybutadiene resin and synthetic cis 1,4-polyisoprene rubber by blending individual polymerizate cements, drying the pre-blend, and use of such pre-blend in the preparation of rubber compositions and of manufactured products such as, for example, tires.

    摘要翻译: 本发明涉及在橡胶组合物中使用熔点至少为30℃的反式1,4-聚丁二烯树脂。 在一个方面,本发明涉及用反式1,4-聚丁二烯树脂和合成的顺式1,4-聚异戊二烯橡胶的预共混物代替或至少部分替代天然橡胶。 本发明特别涉及通过混合各种聚合物水泥,干燥预混物和使用这种预混合物来制备和利用反式1,4-聚丁二烯树脂和合成的顺式1,4-聚异戊二烯橡胶的预共混物 制备橡胶组合物和制造产品,例如轮胎。