会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • Ethylene/dicyclopentadiene copolymers and functionalized derivatives thereof
    • 乙烯/二环戊二烯共聚物及其官能化衍生物
    • US20080015314A1
    • 2008-01-17
    • US11801633
    • 2007-05-10
    • Lisa Saunders BaughAbhimanyu Onkar PatilChristian Peter MehnertKevin R. SquireKenneth A. CookCaiguo GongEnock BerlucheKarla Schall ColleAlan J. OshinskiStephen ZushmaBeverly J. Poole
    • Lisa Saunders BaughAbhimanyu Onkar PatilChristian Peter MehnertKevin R. SquireKenneth A. CookCaiguo GongEnock BerlucheKarla Schall ColleAlan J. OshinskiStephen ZushmaBeverly J. Poole
    • C08L45/00
    • 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, Mw, of greater than about 170,000; c) comprise amorphous material and have glass transition temperatures, Tg, of from about 8° C. to about 129° C., which also fit the equation Tg (in ° C.)≧[(mole % DCPD×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)包含非晶材料,并且具有约8℃至约129℃的玻璃化转变温度,其也适合方程式T(g) (℃)] = [(摩尔%DCPDx 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 - 芴基茂金属催化剂存在下,在含有大于约4.0摩尔二环戊二烯的聚合混合物的存在下,使乙烯与环戊二烯基环的3位具有取代基,优选甲基取代基接触 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。
    • 8. 发明授权
    • Modifiers for improved olefin polymerization with activated neutral aluminum compounds
    • 改性烯烃聚合与活化的中性铝化合物
    • US06689852B2
    • 2004-02-10
    • US10046809
    • 2002-01-15
    • Lisa Saunders BaughJoseph Anthony Sissano
    • Lisa Saunders BaughJoseph Anthony Sissano
    • C08F452
    • C08F10/00C08F110/02C08F4/52C08F2500/03
    • The present invention is for a transition metal-free catalyst system for synthesizing high molecular weight, linear polymers. The system comprises a catalyst composition having: (a) a neutral compound having the formula AlR3, wherein R is an alkyl or hydride group; (b) a Lewis acid or Lewis acid derivative cocatalyst different from the neutral compound, wherein the cocatalyst reacts with the neutral compound to form an initiator; and (c) an activity-enhancing modifier, wherein the modifier reacts with the initiator to form the catalyst composition. The instant invention is also directed to a method for polymerizing at least one olefinic monomer comprising the step of contacting a feed containing the olefinic monomer under polymerization conditions with the transition metal-free catalyst composition.
    • 本发明是用于合成高分子量线型聚合物的无过渡金属催化剂体系。 该系统包括具有以下成分的催化剂组合物:(a)具有式AlR 3的中性化合物,其中R是烷基或氢化物基团; (b)不同于中性化合物的路易斯酸或路易斯酸衍生物助催化剂,其中助催化剂与中性化合物反应形成引发剂; 和(c)活性增强改性剂,其中改性剂与引发剂反应形成催化剂组合物。 本发明还涉及聚合至少一种烯烃单体的方法,该方法包括使聚合条件下含有烯属单体的进料与无过渡金属的催化剂组合物接触的步骤。