公开(公告)号：US11643529B2

公开(公告)日：2023-05-09

申请号：US16491367

申请日：2018-01-26

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Andy H. Tsou ,  Hillary L. Passino

IPC: C08L15/02 ,  C08F210/10 ,  C08K3/04 ,  C08J3/22 ,  B60C1/00

CPC classification number: C08L15/02 ,  B60C1/0008 ,  C08F210/10 ,  C08J3/226 ,  C08K3/042 ,  C08F2800/20 ,  C08F2810/50 ,  C08K2201/011 ,  C08L2201/22 ,  C08L2310/00

Abstract: Disclosed herein are graft polymers having a copolymer backbone and polycyclic aromatic hydrocarbon branches for use as a nanofiller dispersant and methods for making the same. Also disclosed are elastomeric nanocomposite compositions comprising a halobutyl rubber matrix, nanoparticles of graphite or grapheme, and the graft polymer. Such elastomeric nanocomposite compositions are suitable as tire innerliners or innertubes.

公开(公告)号：US11299567B2

公开(公告)日：2022-04-12

申请号：US16315294

申请日：2017-06-14

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Jingwen Zhang ,  Rainer Kolb ,  Andy H. Tsou ,  Periagaram S. Ravishankar ,  Jo Ann M. Canich ,  Francis C. Rix

IPC: C10L1/16 ,  C08F210/16 ,  C10M143/04 ,  C08F4/6592 ,  C10M143/02 ,  C10M171/02 ,  C10M143/06 ,  C10M143/08 ,  C10M171/04 ,  C08F4/659 ,  C10N20/00 ,  C10N20/02 ,  C10N20/04 ,  C10N30/02 ,  C10N30/08 ,  C10N30/00 ,  C10N40/25 ,  C10N70/00

Abstract: 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.

公开(公告)号：US11142021B2

公开(公告)日：2021-10-12

申请号：US16773478

申请日：2020-01-27

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Edward J. Blok ,  Yong Yang ,  Jingwen Zhang ,  Ian C. Stewart ,  Shuji Luo ,  Andy H. Tsou

IPC: B60C1/00 ,  C08L9/06 ,  B60C11/00 ,  C08F8/32 ,  C08F8/42

Abstract: A functionalized polyolefin and a tire tread composition comprising the functionalized polyolefin is described. The functionalized polyolefin comprises a vinyl/vinylidene-terminated polyolefin in which the vinyl/vinylidene terminus is functionalized with an alkoxysilane or an alkylsilane and optionally having ether, hydroxyl and/or amine functionality. The invention is also directed to the synthesis of vinyl/vinylidene-terminated polyolefins, functionalization at the vinyl/vinylidene terminus with an alkoxysilane or an alkylsilane and optionally having ether, hydroxyl and/or amine functionality.

公开(公告)号：US11053396B2

公开(公告)日：2021-07-06

申请号：US16058516

申请日：2018-08-08

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Yong Yang ,  Andy H. Tsou ,  Kimari T. M. Slaughter

IPC: C08G77/26 ,  C09D5/08 ,  C08F8/42 ,  C08F8/30 ,  B60C1/00 ,  C08G81/02 ,  C09D123/36 ,  C08F10/00 ,  C08G81/00 ,  C08G77/44 ,  C08G77/48 ,  C08G77/50 ,  C08G77/54 ,  C08L83/08 ,  C08L83/10 ,  C08L83/00 ,  C08G77/00 ,  C08G77/442

Abstract: Stable star-structured functional polyolefins and methods of making them, the functional polyolefins comprising a polyolefin bound at any position along its chain length to at least one nucleophile-containing silane of the following formula: wherein Y is a di- or trivalent linker group selected from heteroatoms, C1 to C10 alkylenes, and other groups disclosed herein; Nu is a nucleophilic atom or unsaturation group; R5 is selected from hydrogen, and C1 to C10 alkyls, and other groups as disclosed herein; X is a divalent group selected from linear and branched alkylenes and heteroatom-alkylenes, and other groups as disclosed herein; and PO is a polyolefin having a weight average molecular weight of at least 400 g/mole; with the proviso that at least one of R1, R2, and R3 is selected from the same or different functional polyolefin moieties. Star-structured functional polyolefins are useful as filler dispersive additives in tire formulations and processing aids.

公开(公告)号：US11028196B2

公开(公告)日：2021-06-08

申请号：US16193986

申请日：2018-11-16

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Andy H. Tsou ,  Narayanaswami Dharmarajan ,  Crisita Carmen H. Atienza ,  Jian Yang

IPC: C08F210/16 ,  C08F4/64 ,  C08L23/08 ,  C08F295/00 ,  C08F4/6592 ,  C08L51/06 ,  C08F110/02 ,  C08F290/04 ,  C08F4/659

Abstract: A composition comprising vinyl-terminated polyethylene having an Mn from about 200 g/mol to about 10,000 g/mol; and a comb polyolefin having polyethylene arms attached to a random copolymer backbone, said backbone including units derived from an alpha-olefin having 3 or more carbon atoms, where the polyethylene arms have an Mn from about 200 g/mol to about 10,000 g/mol, and where the comb polyolefin has an Mp from about 7,500 to about 400,000 g/mol.

公开(公告)号：US11008449B2

公开(公告)日：2021-05-18

申请号：US16152979

申请日：2018-10-05

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Andy H. Tsou ,  John R. Hagadorn

IPC: C08F4/653 ,  C08F4/643 ,  C08F4/6592 ,  C08L23/16 ,  C08L23/08 ,  C08F210/18 ,  C08L23/12 ,  C08F210/06 ,  C08F4/659

Abstract: The present disclosure provides catalyst systems having a bridged metallocene compound and a transition metal pyridyldiamide compound for use in alkene polymerization to produce multimodal polyolefins, such as multimodal ethylene, propylene, diene monomer copolymers. In some embodiments, the present disclosure provides for polyolefins and processes for producing a polyolefin composition including contacting at least one olefin with a catalyst system of the present disclosure.

公开(公告)号：US20210047505A1

公开(公告)日：2021-02-18

申请号：US16976678

申请日：2019-03-18

Applicant: ExxonMobil Chemical patents Inc.

Inventor： Scott H. Loyd ,  Rainer Kolb ,  Narayanaswami Dharmarajan ,  Andy H. Tsou ,  Zhifeng Bai ,  James N. Coffey

IPC: C08L23/16 ,  C08F210/02 ,  C08F210/06 ,  C08F210/08 ,  C08F236/20 ,  C08F4/659 ,  C08F4/6592 ,  C08K3/04 ,  C08K3/22 ,  C08K5/00 ,  C08K5/098 ,  C08L91/00 ,  F16H7/02

Abstract: A propylene-α-olefin-diene (PEDM) terpolymer may comprise 75 to 95 wt % propylene, 5 to 20 wt % α-olefin, and 0.5 to 5 wt % diene, said wt % based on the weight of the PEDM terpolymer. The propylene-α-olefin-diene terpolymer may be blended with an ethylene-based copolymer and optionally a variety of additives to form an elastomeric composition. An exemplary elastomeric composition includes 5 to 40 parts by weight per hundred parts by weight rubber (phr) of the PEDM terpolymer, 60 to 95 phr of the ethylene-based copolymer, and optionally additives like carbon black, zinc dimethacrylate, paraffinic oil, zinc oxide, and/or zinc stearate.

公开(公告)号：US10858504B2

公开(公告)日：2020-12-08

申请号：US15965560

申请日：2018-04-27

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Yong Yang ,  Alexander I. Norman ,  Andy H. Tsou ,  Kimari T. M. Slaughter ,  Bethany M. Welke ,  Dinara R. Sunagatullina

IPC: C08L23/06 ,  C08L23/08

Abstract: A composite comprising a polyethylene and within a range from 1 wt % to 25 wt % of at least one cyclic-olefin copolymer by weight of the composition, where the polyethylene may have a density of at least 0.90 g/cm3, and where the cyclic-olefin copolymer has a glass transition temperature (Tg) of at least 30° C. Disclosed also is the feature of orienting the composite to form an oriented article, wherein the article comprises rods having an average length of at least 1 μm, and at least 5 nm in average diameter.

公开(公告)号：US10781278B2

公开(公告)日：2020-09-22

申请号：US15761910

申请日：2016-08-17

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Andy H. Tsou ,  David S. Cushing ,  Jason A. Mann ,  Abhimanyu O. Patil

IPC: C08F293/00 ,  C08L53/00 ,  C09K3/10 ,  C08F291/04 ,  B60C1/00 ,  C08L53/02

Abstract: Comb-block copolymers of isobutylene copolymer backbone with functional comb arms, methods for making a comb-block copolymer comprising polymerizing one or more monomer components comprising units derived from at least one of acrylates, vinyl terminated C6 to C20 aromatics, acrylamides, and acrylonitrile using a halogenated copolymer initiator having a benzylic-halide moiety via atom transfer radical polymerization (ATRP) in the presence of a transition metal complex catalyst at a temperature ranging from 30° C. to 150° C., the use of these comb-block copolymers as a tire tread additive, as a nanofiller dispersant in elastomeric nanocomposite compositions comprising halobutyl rubber, as a surfactant, as a sealant, and as an additive in a latex formulation is disclosed.

公开(公告)号：US10590309B2

公开(公告)日：2020-03-17

申请号：US14977775

申请日：2015-12-22

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Wei Tang ,  Andy H. Tsou

IPC: C09D151/00 ,  C08G81/00 ,  C08G81/02 ,  C08F8/02 ,  C08F20/06 ,  C08F20/18 ,  C08F220/06 ,  C08F220/18 ,  C09D187/00

Abstract: A polyacrylate-polyolefin copolymer and composition for volatile solvent-free coating comprising such compounds having the following structure: wherein “PO” is a polyolefin having a number average molecular weight of at least 300 g/mole, and “Ar” is selected from the group consisting of C6 to C20 aryls, a C7 to C32 alkylaryls, a C6 to C20 aryloxys, and halogen substituted C6 to C20 aryls and C7 to C32 alkylaryls, while the other variables are as described herein. The copolymers can be produced in an alkylation reaction between the desired polyacrylate and a vinyl/vinylidene-terminated polyolefin.