公开(公告)号：US20230145787A1

公开(公告)日：2023-05-11

申请号：US17908192

申请日：2021-02-26

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Alan A. Galuska ,  Alexander V. Zabula ,  Yong Yang ,  Carlos R. Lopez-Barron ,  Brian J. Rohde ,  Xiao-Dong Pan ,  Wen J. Liu

IPC: C08G61/08 ,  C08L23/20 ,  B60C1/00 ,  B60C11/00

CPC classification number: C08G61/08 ,  C08L23/20 ,  B60C1/0016 ,  B60C11/0008 ,  C08G2261/60 ,  C08G2261/418 ,  C08G2261/3321 ,  C08G2261/216 ,  C08G2261/132 ,  B60C2200/06 ,  B60C2011/0033 ,  B60C2011/0025

Abstract: A rubber compound for heavy-duty truck or bus tire treads may comprise: 5 to 100 parts by weight per hundred parts by weight rubber (phr) of a long chain branched cyclopentene ring opening rubber (LCB-CPR) having a glass transition temperature (Tg) of −120° C. to −80° C., a g′vis of 0.50 to 0.91, and a ratio of cis-to-trans of 40:60 to 5:95; 0 phr to 95 phr of a rubber selected from a group consisting of a natural rubber (NR), a polybutadiene rubber (BR), and a combination thereof; 30 phr to 90 phr of a reinforcing filler; and 0.5 phr to 20 phr of a process oil.

公开(公告)号：US20210017364A1

公开(公告)日：2021-01-21

申请号：US16928806

申请日：2020-07-14

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Carlos R. Lopez-Barron ,  Hamidreza Khakdaman ,  Brian J. Rohde ,  Sung A. Kim

IPC: C08L23/12 ,  C08L23/20

Abstract: An impact copolymer composition comprising a continuous phase comprising polypropylene and from 10 wt % to 80 wt % of a dispersed phase, based on the total amount of the composition, comprising a copolymer of ethylene and a C4-C8 alpha-olefin, the dispersed phase having an average particle size of less than 500 nm. A process for making is also disclosed.

公开(公告)号：US20190233755A1

公开(公告)日：2019-08-01

申请号：US16253108

申请日：2019-01-21

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Andy H. Tsou ,  Carlos R. Lopez-Barron ,  John R. Hagadorn

IPC: C10M119/02 ,  C10M169/02 ,  C10M101/00 ,  C10M105/04

CPC classification number: C10M119/02 ,  C10M101/00 ,  C10M105/04 ,  C10M169/02 ,  C10M2203/003 ,  C10M2203/024 ,  C10M2205/028 ,  C10N2220/021 ,  C10N2220/028 ,  C10N2250/08 ,  C10N2250/10

Abstract: Bottlebrush poly(alpha olefin)s of high carbon number, greater than 12 such as poly(octadecene), are used as a thickener for a synthetic base oil grease lubricant that is based on oligomerized alpha olefin with carbon number from 7 to 12, such as oligo(decene). Dispersion aids are not required in the present lubricants because poly(octadecene) can be dissolved in oligo(decene). The lubricant is a solid grease formed by percolation/network of the poly(octadecene) crystals, at a sufficient concentration, after the crystallization of poly(octadecene), and water resistant having oxidation/high temperature stability.

公开(公告)号：US09815946B2

公开(公告)日：2017-11-14

申请号：US14900679

申请日：2014-07-15

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Yong Yang ,  Carlos R. Lopez-Barron

IPC: C08G81/02 ,  C08G69/48 ,  C08G65/38

CPC classification number: C08G81/028 ,  C08G65/38 ,  C08G69/48 ,  C08G81/025

Abstract: Disclosed herein is a method to stabilize a poly(arylene ether) comprising combining a neat or diluted poly(arylene ether) with a vinyl or vinylidene-terminated polyolefin at a temperature of at least 80° C. to form heated reaction components; combining a Brφnsted acid or Lewis acid with the heated reaction components; and isolating a polyolefin-poly(arylene ether) copolymer composition.

公开(公告)号：US20240392063A1

公开(公告)日：2024-11-28

申请号：US18694729

申请日：2022-09-26

Applicant: EXXONMOBIL CHEMICAL PATENTS INC.

Inventor： Agostino Pietrangelo ,  Carlos R. Lopez-Barron ,  Timothy D. Shaffer ,  Pamela J. Wright

IPC: C08G63/08 ,  C08G63/81 ,  C08G63/82

Abstract: Embodiments described herein relate to polyhdroxyalkanoate (PHA) copolymers and methods for their preparation utilizing ring-opening polymerization of lactones. Variations of the monomer composition, % of alternation, tacticity, and/or microstructure allow for tailoring of mechanical properties that fall into the elastomer, plastomer, and thermoplastic range.

公开(公告)号：US20240368342A1

公开(公告)日：2024-11-07

申请号：US18681935

申请日：2022-07-18

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Gursu Culcu ,  Carlos R. Lopez-Barron ,  Charles J. Harlan ,  John R. Hagadorn ,  Glen E. Alliger

IPC: C08G63/82 ,  C08G63/08 ,  C08G63/81 ,  C08G63/84

Abstract: A method for preparing a polyhydroxyalkanoate (PHA) polymer by ring-opening polymerization, comprising: polymerizing a lactone in a presence of a solvent and a catalyst with a yttrium metal center under reaction conditions; controlling the polymerization to derive a polymer from the lactone with the polymer having predetermined tensile properties, wherein a Tm of the polymer ranges from 90 to 170° C. and the tensile properties are determined by a ligand of the catalyst, the solvent, and a temperature of the reaction conditions; and recovering the polymer.

公开(公告)号：US20210017361A1

公开(公告)日：2021-01-21

申请号：US16928817

申请日：2020-07-14

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Carlos R. Lopez-Barron ,  Hamidreza Khakdaman ,  Brian J. Rohde

IPC: C08L9/00 ,  C08L23/12

Abstract: A thermoplastic vulcanizate composition, comprising a first phase bi-continuously intertwined with from about 10 wt % to 80 wt % of a second phase throughout the composition, and from about 0.1 wt % to about 10 wt % of a curative system, the first phase comprising polypropylene and the second phase comprising an at least partially cured elastomeric rubber composition, comprising from about 10 wt % to about 40 wt % ethylene, from about 5 wt % to about 10 wt % of a conjugated diene having from 4 to 12 carbon atoms, and from about 50 wt % to about 85 wt % of a C4-C8 alpha olefin, based on the total weight of the elastomeric rubber composition present. A process for making is also disclosed.

公开(公告)号：US10472437B2

公开(公告)日：2019-11-12

申请号：US15808096

申请日：2017-11-09

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Carlos R. Lopez-Barron ,  Mark K. Davis ,  Alan A. Galuska ,  Yong Yang ,  Mosha H. Zhao

IPC: C08F112/32 ,  C08L25/04

Abstract: Disclosed is an article comprising polymers and copolymers selected from the group consisting of poly(vinylbiphenyl), poly(vinylcyclohexylstyrene), substituted versions thereof, and blends thereof, the polymer or copolymer having a weight average molecular weight (Mw) of at least 100 kg/mole and a glass transition temperature (Tg) of at least 100° C. The polymers are desirably processed in the melted state at a temperature of at least 150° C. to impart orientation and extensional strain hardening.

公开(公告)号：US09879104B2

公开(公告)日：2018-01-30

申请号：US15083479

申请日：2016-03-29

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： John F. Walzer, Jr. ,  Anna A. Michels ,  John R. Hagadorn ,  Sarah J. Mattler ,  Carlos R. Lopez-Barron ,  Anthony J. Dias

IPC: C08F210/02

CPC classification number: C08F210/02 ,  C08F236/08 ,  C08F2500/03 ,  C08F4/545

Abstract: This invention relates to a process to using an aminopyridinate scandium or yttrium metal (typically scandium) catalyst compound to produce ethylene conjugated diene copolymers, preferably ethylene isoprene copolymers having: 1) from 75 to 90 mol % ethylene; 2) from 10 to 25 mol % isoprene; 3) a Tg of 0° C. or less; 4) 1,4 isomer present at 60 wt % or less; 5) 3,4 and 1,2 present at 40% or more; 6) Mn of 250,000 g/mol or less; and 7) optionally, a Tm of 100° C. or less.

公开(公告)号：US20160319057A1

公开(公告)日：2016-11-03

申请号：US15083479

申请日：2016-03-29

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： John F. Walzer, JR. ,  Anna A. Michels ,  John R. Hagadorn ,  Sarah J. Mattler ,  Carlos R. Lopez-Barron ,  Anthony J. Dias

IPC: C08F210/02

CPC classification number: C08F210/02 ,  C08F236/08 ,  C08F2500/03 ,  C08F4/545

Abstract: This invention relates to a process to using an aminopyridinate scandium or yttrium metal (typically scandium) catalyst compound to produce ethylene conjugated diene copolymers, preferably ethylene isoprene copolymers having: 1) from 75 to 90 mol % ethylene; 2) from 10 to 25 mol % isoprene; 3) a Tg of 0° C. or less; 4) 1,4 isomer present at 60 wt % or less; 5) 3,4 and 1,2 present at 40% or more; 6) Mn of 250,000 g/mol or less; and 7) optionally, a Tm of 100° C. or less.

Abstract translation: 本发明涉及一种使用氨基吡啶鎓钪或钇金属（通常为钪）催化剂化合物制备乙烯共轭二烯共聚物，优选乙烯异戊二烯共聚物的方法，该共聚物具有：1）75至90mol％的乙烯; 2）10-25mol％异戊二烯; 3）Tg为0℃以下; 4）存在于60重量％以下的1,4-异构体; 5）3,4和1,2存在于40％以上; 6）Mn为25万g / mol以下; 和7）任选地，Tm为100℃或更低。