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    • 8. 发明申请
    • COMPATIBILIZED TIRE TREAD COMPOSITIONS
    • 兼容的轮胎组合物
    • WO2015023382A1
    • 2015-02-19
    • PCT/US2014/046684
    • 2014-07-15
    • EXXONMOBIL CHEMICAL PATENTS INC.
    • BLOK, Edward, J.TSOU, Andy, H.LUO, ShujiWALKER, Elizabeth, L.ZHANG, JingwenYANG, Yong
    • C08F299/02C08L53/00C08F297/00B60C1/00
    • C08F299/00B60C1/0016C08C19/25C08C19/28C08C19/40C08F297/00C08F299/02C08G81/021C08L9/06C08L53/00
    • A polyolefin-polybutadiene block-copolymer and a tire tread composition comprising the polyolefin-polybutadiene block-copolymer, the composition comprising, by weight of the composition, within the range from 15 to 60 wt% of a styrenic copolymer, processing oil, filler, a curative agent, and from 4 to 20 wt% of a polyolefin-polybutadiene block-copolymer, wherein the polyolefin-polybutadiene block-copolymer is a block copolymer having the general formula PO— XL— fPB; where "PO" is a polyolefin block having a weight average molecular weight within the range from 1000 to 150,000 g/mole, the "fPB" is a functionalized polar polybutadiene block having a weight average molecular weight within the range from 500 to 30,000 g/mole, and "XL" is a cross-linking moiety that covalently links the PO and fPB blocks; and wherein the maximum Energy Loss (Tangent Delta) of the immiscible polyolefin domain is a temperature within the range from -30°C to 10°C.
    • 包含聚烯烃 - 聚丁二烯嵌段共聚物的聚烯烃 - 聚丁二烯嵌段共聚物和轮胎胎面组合物,所述组合物按所述组合物的重量计在苯乙烯共聚物的15-60wt%范围内,加工油,填料, 固化剂和4〜20重量%的聚烯烃 - 聚丁二烯嵌段共聚物,其中聚烯烃 - 聚丁二烯嵌段共聚物是具有通式PO-XL-fPB的嵌段共聚物; 其中“PO”是重均分子量为1000〜150,000g / mol的聚烯烃嵌段,“fPB”为重均分子量在500〜30,000g / mol之间的官能化极性聚丁二烯嵌段, 摩尔,“XL”是共价连接PO和fPB嵌段的交联部分; 并且其中不混溶聚烯烃领域的最大能量损失(切线三角洲)是在-30℃至10℃的范围内的温度。
    • 10. 发明申请
    • LUBRICATING OIL COMPOSITIONS COMPRISING DUAL METALLOCENE-CATALYZED BIMODAL COPOLYMER COMPOSITIONS USEFUL AS VISCOSITY MODIFIERS
    • 包含双金属茂催化的双峰共聚物组合物的润滑油组合物用作粘度调节剂
    • WO2018013286A1
    • 2018-01-18
    • PCT/US2017/037496
    • 2017-06-14
    • EXXONMOBIL CHEMICAL PATENTS INC.
    • ZHANG, JingwenKOLB, RainerTSOU, Andy, H.RAVISHANKAR, Periagaram, S.CANICH, Jo Ann, M.RIX, Francis, C.
    • C10M143/04C10M143/06C10M143/08C10M171/02C10M171/04
    • This application relates to copolymer compositions and copolymerization processes, as well as to lubricating oil compositions comprising such copolymer compositions as viscosity index improvers, and base oil. The copolymer compositions may be made using two different metallocene catalysts: one capable of producing high molecular weight copolymers; and one suitable for producing lower molecular weight copolymers having at least a portion of vinyl terminations, and the copolymer compositions produced thereby. Copolymer compositions may comprise (1) a first ethylene copolymer fraction having high molecular weight, exhibiting branching topology, and having relatively lower ethylene content (based on the weight of the first ethylene copolymer fraction); and (2) a second ethylene copolymer fraction having low molecular weight, exhibiting linear rheology, and having relatively higher ethylene content (based on the weight of the second ethylene copolymer fraction). Lubricating oil compositions comprising such copolymer compositions may exhibit superior viscosity properties.
    • 本申请涉及共聚物组合物和共聚方法,以及包含这种共聚物组合物如粘度指数改进剂和基础油的润滑油组合物。 共聚物组合物可以使用两种不同的金属茂催化剂制备:一种能够生产高分子量共聚物; 以及适用于生产具有至少一部分乙烯基末端的低分子量共聚物和由此制得的共聚物组合物。 共聚物组合物可以包含(1)具有高分子量,显示支化拓扑结构并且具有相对较低的乙烯含量(基于第一乙烯共聚物部分的重量)的第一乙烯共聚物部分; 和(2)具有低分子量,呈现线性流变性并具有相对较高乙烯含量(基于第二乙烯共聚物部分的重量)的第二乙烯共聚物部分。 包含这种共聚物组合物的润滑油组合物可以表现出优异的粘度性能。