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    • 2. 发明授权
    • Heterogeneous in-reactor polymer blends
    • 不均匀的反应器内聚合物共混物
    • US08106127B2
    • 2012-01-31
    • US12638861
    • 2009-12-15
    • Carlos U. De GraciaKevin R. SquirePeijun JiangArmenag H. DekmezianBeverly J. PooleCesar A. Garcia-Franco
    • Carlos U. De GraciaKevin R. SquirePeijun JiangArmenag H. DekmezianBeverly J. PooleCesar A. Garcia-Franco
    • C08F8/00C08L23/04C08L23/10C08K5/00
    • C08L23/16C08L23/12C08L2314/06C08L2666/06
    • An in-reactor polymer blend comprises (a) a propylene-containing first polymer; and (b) an ethylene-containing second polymer such that the polymer blend comprises between about 50 wt % and about 80 wt % units derived from ethylene and between about 50 wt % and about 20 wt % units derived from propylene. The blend is substantially free of dienes and the content of ethylene in the second polymer in the form of ethylene-ethylene-ethylene triads is at least 40%. The second polymer contains at least 0.1 branch having 8 or more carbon atoms per 10,000 carbons. In addition, the blend has a strain hardening index of at least 1.8, a shear thinning slope in the plot of log(dynamic viscosity) versus log(frequency) of less than −0.2 and exhibits at least two peaks when subjected to Differential Scanning Calorimetry (first melt) corresponding to a first melting point of at least 150° C. and a second melting point of at least 40° C. such that the difference between the first and second melting temperatures is at least 20° C.
    • 反应器内聚合物共混物包含(a)含丙烯的第一聚合物; 和(b)含乙烯的第二聚合物,使得聚合物共混物包含衍生自乙烯的约50重量%至约80重量%的单元和衍生自丙烯的约50重量%至约20重量%的单元。 共混物基本上不含二烯,乙烯 - 乙烯 - 乙烯三单元组形式的第二聚合物中的乙烯含量至少为40%。 第二聚合物含有至少0.1个分支,每10,000个碳原子具有8个或更多个碳原子。 此外,共混物的应变硬化指数为至少1.8,对数(动态粘度)对log(频率)的曲线图中的剪切变稀斜率小于-0.2,并且当进行差示扫描量热法时显示出至少两个峰 (第一熔体),其对应于至少150℃的第一熔点和至少40℃的第二熔点,使得第一和第二熔融温度之间的差异为至少20℃。
    • 4. 发明授权
    • Nanocomposite comprising stabilization functionalized thermoplastic polyolefins
    • 包含稳定官能化的热塑性聚烯烃的纳米复合材料
    • US07371793B2
    • 2008-05-13
    • US10800455
    • 2004-03-15
    • Caiguo GongAlan J. OshinskiBeverly J. PooleJerry W. BallThomas W. Sykes
    • Caiguo GongAlan J. OshinskiBeverly J. PooleJerry W. BallThomas W. Sykes
    • C08K9/04
    • B82Y30/00C08F8/32C08K2201/011C08L21/00C08F255/02C08F8/46C08F110/06
    • This invention relates to nanocomposites comprising organo-clay and at least one stabilization functionalized thermoplastic polyolefin. Preferably the stabilization functionalized thermoplastic polyolefin is represented by the formula: T-(R1G)n Wherein T represents the thermoplastic polyolefin Each R1 is a bridging group, preferably independently selected from the group consisting of C1 to C20 aliphatic; C1 to C20 aromatic; substituted C1 to C20 aliphatic; substituted C1 to C20 aromatic; C1 to C20 aliphatic ester; C1 to C20 aliphatic ether; C1 to C20 aliphatic amide; C1 to C20 aliphatic imide; n is the number of stabilization functional/bridging groups bound to T and may be from 1-300; and G is selected from one or more of phenols, ketones, hindered amines, substituted phenols, substituted ketones, substituted hindered amines, or combinations thereof.
    • 本发明涉及包含有机粘土和至少一种稳定官能化的热塑性聚烯烃的纳米复合材料。 优选地,稳定化官能化的热塑性聚烯烃由下式表示:<?in-line-formula description =“In-line Formulas”end =“lead”?> T-(R&lt; 1&gt; G) > n <?in-line-formula description =“In-line Formulas”end =“tail”?>其中T表示热塑性聚烯烃。每个R 1是桥连基,优选 独立地选自C 1至C 20脂族基团; C 1至C 20芳族; 取代的C 1至C 20脂族基; 取代的C 1至C 20芳族; C 1至C 20脂族酯; C 1至C 20脂族醚; C 1至C 20脂族酰胺; C 1至C 20脂族酰亚胺; n是与T结合的稳定性功能性/桥连基团的数目,可以是1-300; 并且G选自酚,酮,受阻胺,取代酚,取代的酮,取代的受阻胺或其组合中的一种或多种。
    • 9. 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。