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    • 3. 发明申请
    • ETHYLENE/DICYCLOPENTADIENE COPOLYMERS AND FUNCTIONALIZED DERIVATIVES THEREOF
    • 乙烯/二烯丙基共聚物及其官能化衍生物
    • WO2008008112A1
    • 2008-01-17
    • PCT/US2007/011284
    • 2007-05-10
    • EXXONMOBIL CHEMICAL PATENTS INC.BAUGH, Lisa, SaundersPATIL, Abhimanyu, OnkarMEHNERT, Christian, PeterSQUIRE, Kevin, R.COOK, Kenneth, A.GONG, CaiguoBERLUCHE, EnockCOLLE, Karla, SchallOSHINSKI, Alan, J.ZUSHMA, StephenPOOLE, Beverly, J.
    • BAUGH, Lisa, SaundersPATIL, Abhimanyu, OnkarMEHNERT, Christian, PeterSQUIRE, Kevin, R.COOK, Kenneth, A.GONG, CaiguoBERLUCHE, EnockCOLLE, Karla, SchallOSHINSKI, Alan, J.ZUSHMA, StephenPOOLE, Beverly, J.
    • C08F210/02C08F8/04C08F8/08
    • C08F210/02C08F8/04C08F8/08C08F232/00
    • Disclosed is a selected type of copolymer composition comprising copolymers having units derived from ethylene and dicyclopentadiene (DCPD) co-monomers. Such copolymer compositions: a) have a DCPD-derived comonomer unit content of from about 25 mole % to about 45 mole %; b) have a Weight Average Molecular Weight, M w , of greater than about 170,000; c) comprise amorphous material and have glass transition temperatures, T g , of from about 8 °C to about 129°C, which also fit the equation T g (in °C) ≥ [(mole % DCPD x 3.142) - 4.67]; and d) comprise no significant amount of crystalline polyethylene homopolymer or crystallizable polyethylene segments within the ethylene-dicylopentadiene copolymers. Such copolymers can be readily derivatized by hydrogention and/or epoxidation to provide polymeric materials suitable for use as engineering thermoplastics. Also disclosed are processes for preparing and optionally further derivatizing ethylene/dicyclopentadiene copolymers having the characteristics hereinbefore described. Such processes comprise: a) contacting ethylene with a polymerization mixture comprising greater than about 4.0 molar dicyclopentadiene, in the presence of a selected activated cyclopentadienyl- fluorenyl metallocene catalyst bearing a substituent, preferably a methyl substituent, at the 3- position of the cyclopentadienyl ring, under specific polymerization conditions including relatively high ethylene pressures to thereby form the desired ethylene-dicyclopentadiene copolymers within the polymerization mixture. Such copolymers are then recovered and/or further hydrogenated or functionalized.
    • 公开了一种选择类型的共聚物组合物,其包含具有衍生自乙烯和二环戊二烯(DCPD)共聚单体的单元的共聚物。 这种共聚物组合物:a)具有约25摩尔%至约45摩尔%的DCPD衍生的共聚单体单元含量; b)具有大于约170,000的重均分子量,M < c)包括非晶材料,并且具有约8℃至约129℃的玻璃化转变温度,其也适合等式T(g) C)= [(摩尔%DCPD×3.142)-4.67]; 和d)在乙烯 - 二茂二烯共聚物内不含有显着量的结晶聚乙烯均聚物或可结晶的聚乙烯链段。 这样的共聚物可以通过水合和/或环氧化来容易地衍生,以提供适合用作工程热塑性塑料的聚合材料。 还公开了制备和任选地进一步衍生具有上述特征的乙烯/二环戊二烯共聚物的方法。 这样的方法包括:a)在选择的活化的环戊二烯基 - 芴基茂金属催化剂的存在下,在环戊二烯基环的3-位具有取代基,优选甲基取代基的存在下,使乙烯与包含大于约4.0摩尔二环戊二烯的聚合混合物接触 在包括相对较高的乙烯压力的特定聚合条件下,从而在聚合混合物内形成所需的乙烯 - 二环戊二烯共聚物。 然后回收和/或进一步氢化或官能化此类共聚物。
    • 9. 发明申请
    • FUNCTIONALIZED ELASTOMER NANOCOMPOSITE
    • 功能性弹性体纳米复合材料
    • WO2004005387A1
    • 2004-01-15
    • PCT/US2003/016944
    • 2003-05-30
    • EXXONMOBIL CHEMICAL PATENTS INC.GONG, CaiguoDIAS, Anthony, J.TSOU, Andy, H.POOLE, Beverly, J.KARP, Kriss, R.
    • GONG, CaiguoDIAS, Anthony, J.TSOU, Andy, H.POOLE, Beverly, J.KARP, Kriss, R.
    • C08K3/34
    • C08K3/346C08L51/00C08L23/22
    • An embodiment of the present invention is a nanocomposite comprising a clay and an elastomer comprising at least C 2 to C 10 olefin derived units; wherein the elastomer also comprises functionalized monomer units pendant to the elastomer. Desirable embodiments of the elastomer include poly(isobutylene- co-p -alkylstyrene) elastomers and poly(isobutylene- co -isoprene) elastomers, which are functionalized via Friedel-Crafts reaction with a Lewis acid and a functionalizing agent such as acid anhydrides and/or acylhalides. The clay is exfoliated in one embodiment by the addition of exfoliating agents such as alkyl amines and silanes to the clay. The composition can include secondary rubbers such as general purpose rubbers, and curatives, fillers, and the like. The nanocomposites of the invention have improved air barrier properties such as are useful for tire innerliners and innertubes.
    • 本发明的一个实施方案是纳米复合材料,其包含粘土和包含至少C2-C10烯烃衍生单元的弹性体; 其中弹性体还包括垂直于弹性体的官能化单体单元。 弹性体的优选实施方案包括聚(异丁烯 - 共 - 对烷基苯乙烯)弹性体和聚(异丁烯 - 共异戊二烯)弹性体,其通过与路易斯酸和官能化试剂如酸酐和/ 或酰卤。 粘土在一个实施方案中通过向粘土中加入去角质剂如烷基胺和硅烷来剥离。 组合物可以包括二次橡胶,例如通用橡胶,固化剂,填料等。 本发明的纳米复合材料具有改进的空气阻隔性能,例如可用于轮胎内衬和内管。