公开(公告)号：US20170233566A1

公开(公告)日：2017-08-17

申请号：US15503018

申请日：2015-08-04

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Sudhin Datta ,  Rohan A. Hule ,  Xin Chen ,  Feng Li

IPC: C08L23/12 ,  C08J3/00

CPC classification number: C08L23/12 ,  C08J3/005 ,  C08J2323/12 ,  C08J2423/12 ,  C08L23/10 ,  C08L2203/14 ,  C08L2203/30 ,  C08L2205/025 ,  C08L2205/03 ,  C08F110/06 ,  C08F2500/06 ,  C08F2500/17 ,  C08F2/001 ,  C08F2500/12 ,  C08F2500/04 ,  C08F2500/05

Abstract: A bimodal polypropylene composition of at least a high molecular weight, predominantly isotactic, narrow molecular weight distribution polypropylene having a heat of fusion of 70 to 100 J/g, and a low molecular weight, predominantly isotactic, narrow molecular weight distribution polypropylene having a heat of fusion of 70 to 100 J/g, wherein the high molecular weight polymer and low molecular weight polymer are sufficiently miscible to impart a single glass transition temperature and a single melting point to the polymer blend, has improved processibility and stiffness compared to a single narrow molecular weight distribution isotactic polypropylene of the average of the components.

公开(公告)号：US09175240B2

公开(公告)日：2015-11-03

申请号：US13651024

申请日：2012-10-12

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Rainer Kolb ,  Sudhin Datta ,  Liehpao O. Farng ,  Vera Minak-Bernero ,  Eric B. Sirota ,  Thomas T. Sun ,  Mun-Fu Tse

IPC: C10M111/04 ,  C10L1/22 ,  C10L1/16 ,  C10M143/08 ,  C08F210/06 ,  C08L23/16 ,  C10M143/00 ,  C08F210/16 ,  C10M143/04 ,  C10M143/06 ,  C08F4/659

CPC classification number: C10M143/08 ,  C08F4/65908 ,  C08F210/06 ,  C08F210/16 ,  C08L23/16 ,  C10M143/00 ,  C10M143/04 ,  C10M143/06 ,  C10M2205/022 ,  C10N2220/02 ,  C10N2220/021 ,  C10N2220/022 ,  C10N2220/033 ,  C10N2220/082 ,  C10N2230/02 ,  C10N2230/68 ,  C08F4/65927 ,  C10M2205/024 ,  C10M2209/062 ,  C08F2500/12 ,  C08F2500/03 ,  C10M2205/026 ,  C10M2205/028

Abstract: Provided are ethylene-based copolymers, methods of preparing the same, lubricating oil compositions including the same, methods for preparing such lubricating oil compositions, and end uses for such ethylene-based copolymers and lubricating oil compositions. The ethylene-based copolymers may include from about 35 wt. % to about 60 wt. % of units derived from ethylene and at least 1.0 wt. % of one or more alpha-olefin comonomers having 3 to 20 carbon atoms. The ethylene-based copolymers are substantially amorphous and have a polydispersity index of about 2.8 or less.

Abstract translation: 提供的是基于乙烯的共聚物，其制备方法，包含其的润滑油组合物，这种润滑油组合物的制备方法以及这种乙烯基共聚物和润滑油组合物的最终用途。 基于乙烯的共聚物可以包含约35wt。 ％至约60wt。 衍生自乙烯的单元的％和至少1.0重量％ ％的一种或多种具有3-20个碳原子的α-烯烃共聚单体。 基于乙烯的共聚物基本上是无定形的，并且多分散指数为约2.8或更小。