公开(公告)号：US11015008B2

公开(公告)日：2021-05-25

申请号：US16356910

申请日：2019-03-18

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Sudhin Datta ,  Andy H. Tsou ,  Ron Walker ,  Krishnan Anantha Narayana Iyer ,  Rhutesh K. Shah ,  Hamidreza Khakdaman ,  Sebastian Vasquez ,  Feng Li

IPC: C08L23/16 ,  C08F236/04 ,  C08F210/06 ,  C08F210/02 ,  C08L23/14 ,  C08J3/21 ,  C08J3/24 ,  C08F236/20 ,  C08F210/18

Abstract: Disclosed is the preparation of thermoplastic vulcanizates with reduced crosslinked rubber dispersion sizes and dispersity. The thermoplastic vulcanizates include a polypropylene matrix phase in which cross-linked rubber particles are dispersed. The thermoplastic vulcanizates include the reaction product of a mixture that includes at least 10 wt % of isotactic polypropylene at least 30 wt % of an amorphous propylene-ethylene-diene terpolymer containing at least 60 wt % propylene-derived units and less than or equal to 25 wt % of ethylene-derived units; at least 10 wt % of a diluent and at least 0.015 wt % of at least one curative. The mixture is preferably formed without adding an ethylene-propylene-diene terpolymer.

公开(公告)号：US11976154B2

公开(公告)日：2024-05-07

申请号：US17152440

申请日：2021-01-19

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Michael K. Lyon ,  Hamidreza Khakdaman ,  Trevan D. MacArthur ,  Adrian Strehler ,  Claudio Walker

IPC: C08F6/10 ,  B01D1/22 ,  B01D19/00 ,  C08F2/01 ,  C08F2/06

CPC classification number: C08F6/10 ,  B01D1/221 ,  B01D19/0036 ,  C08F2/01 ,  C08F2/06

Abstract: In at least one embodiment, a devolatilization vessel includes a first set of one or more devolatilization plates and a second set of one or more devolatilization plates. A first distributor is above the first set of one or more devolatilization plates and the second set of one or more devolatilization plates. A second distributor is above the second set of one or more devolatilization plates. In at least one embodiment, a process of forming a polymer includes forming a first polymer solution having a first viscosity and forming a second polymer solution having a second viscosity. The process includes flowing the first polymer solution and the second polymer solution to a devolatilization vessel. The process includes removing volatiles from the first polymer solution and the second polymer solution in the devolatilization vessel to form a devolatilized first polymer melt and a devolatilized second polymer melt.

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：US20190309115A1

公开(公告)日：2019-10-10

申请号：US16356910

申请日：2019-03-18

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Sudhin Datta ,  Andy H. Tsou ,  Ron Walker ,  Krishnan Anantha Narayana Iyer ,  Rhutesh K. Shah ,  Hamidreza Khakdaman ,  Sebastian Vasquez ,  Feng Li

IPC: C08F236/04 ,  C08F210/06 ,  C08F210/02 ,  C08L23/16 ,  C08L23/14

Abstract: Disclosed is the preparation of thermoplastic vulcanizates with reduced crosslinked rubber dispersion sizes and dispersity. The thermoplastic vulcanizates include a polypropylene matrix phase in which cross-linked rubber particles are dispersed. The thermoplastic vulcanizates include the reaction product of a mixture that includes at least 10 wt % of isotactic polypropylene at least 30 wt % of an amorphous propylene-ethylene-diene terpolymer containing at least 60 wt % propylene-derived units and less than or equal to 25 wt % of ethylene-derived units; at least 10 wt % of a diluent and at least 0.015 wt % of at least one curative. The mixture is preferably formed without adding an ethylene-propylene-diene terpolymer.

公开(公告)号：US20210221925A1

公开(公告)日：2021-07-22

申请号：US17152440

申请日：2021-01-19

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Michael K. Lyon ,  Hamidreza Khakdaman ,  Trevan D. MacArthur ,  Adrian Strehler ,  Claudio Walker

IPC: C08F6/10 ,  C08F2/01 ,  C08F2/06 ,  B01D1/22 ,  B01D19/00

Abstract: In at least one embodiment, a devolatilization vessel includes a first set of one or more devolatilization plates and a second set of one or more devolatilization plates. A first distributor is above the first set of one or more devolatilization plates and the second set of one or more devolatilization plates. A second distributor is above the second set of one or more devolatilization plates. In at least one embodiment, a process of forming a polymer includes forming a first polymer solution having a first viscosity and forming a second polymer solution having a second viscosity. The process includes flowing the first polymer solution and the second polymer solution to a devolatilization vessel. The process includes removing volatiles from the first polymer solution and the second polymer solution in the devolatilization vessel to form a devolatilized first polymer melt and a devolatilized second polymer melt.

公开(公告)号：US20190309152A1

公开(公告)日：2019-10-10

申请号：US16356894

申请日：2019-03-18

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Sudhin Datta ,  Andy H. Tsou ,  Ron Walker ,  Krishnan Anantha Narayana Iyer ,  Hamidreza Khakdaman ,  Kimari T.M. Slaughter ,  Sebastian Vasquez

IPC: C08L23/16 ,  C08J3/21 ,  C08J3/24

Abstract: This invention relates to a thermoplastic vulcanizate having excellent elongation comprising an isotactic polypropylene matrix phase in which a cross-linked ethylene-propylene-diene terpolymer (EPDM) is dispersed, the vulcanizate comprising the reaction product of: a) 35 to 55 wt % of an ethylene-propylene-diene terpolymer (EPDM); b) 10 to 40 wt % of isotactic polypropylene (iPP); c) 0.5 to 25 wt % of a propylene-ethylene-diene terpolymer (PEDM) compatibilizer, said compatibilizer having a heat of fusion of less than 2 J/g; and d) 0.015 to 0.03 wt % of curatives; wherein the percentages of components (a) to (d) are based on the total weight of the mixture.

公开(公告)号：US11174332B2

公开(公告)日：2021-11-16

申请号：US16356894

申请日：2019-03-18

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Sudhin Datta ,  Andy H. Tsou ,  Ron Walker ,  Krishnan Anantha Narayana Iyer ,  Hamidreza Khakdaman ,  Kimari T. M. Slaughter ,  Sebastian Vasquez ,  Antonios K. Doufas

IPC: C08F236/04 ,  C08F210/06 ,  C08F210/02 ,  C08L23/16 ,  C08L23/14 ,  C08J3/21 ,  C08J3/24 ,  C08F236/20 ,  C08F210/18

Abstract: This invention relates to a thermoplastic vulcanizate having excellent elongation comprising an isotactic polypropylene matrix phase in which a cross-linked ethylene-propylene-diene terpolymer (EPDM) is dispersed, the vulcanizate comprising the reaction product of: a) 35 to 55 wt % of an ethylene-propylene-diene terpolymer (EPDM); b) 10 to 40 wt % of isotactic polypropylene (iPP); c) 0.5 to 25 wt % of a propylene-ethylene-diene terpolymer (PEDM) compatibilizer, said compatibilizer having a heat of fusion of less than 2 J/g; and d) 0.015 to 0.03 wt % of curatives; wherein the percentages of components (a) to (d) are based on the total weight of the mixture.

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.