公开(公告)号：US11912852B2

公开(公告)日：2024-02-27

申请号：US18315338

申请日：2023-05-10

Applicant: Dow Global Technologies LLC

Inventor： Bharat I. Chaudhary ,  Christopher R. Eddy ,  Sarat Munjal ,  Kalyan Sehanobish ,  Hayley Brown ,  John O. Osby ,  Jose Ortega

IPC: C08L23/26 ,  C08L23/08 ,  C08F2/01 ,  C08J3/24 ,  H01B3/30 ,  C08K5/14

CPC classification number: C08L23/26 ,  C08F2/01 ,  C08J3/24 ,  C08K5/14 ,  C08L23/0846 ,  H01B3/307 ,  C08F2500/11 ,  C08K5/14 ,  C08L23/26 ,  C08F210/02 ,  C08F2/02 ,  C08F210/02 ,  C08F2500/09 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/17

Abstract: An insulated wire or cable is made by a process comprising the steps of:



(A) extruding onto a covered or uncovered metal conductor or optical fiber a composition having a DF measured at 130° C. (60 Hz, 2 kV) or 120° C. (60 Hz, 8 kV) or 100° C. (60 Hz, 8 kV) of ≤0.5% and comprising:

(1) a high melt strength ethylene-based polymer made in a tubular reactor, and
(2) a peroxide, and


(B) crosslinking the high melt strength ethylene-based polymer.

公开(公告)号：US10442878B2

公开(公告)日：2019-10-15

申请号：US14411445

申请日：2013-03-08

Applicant: Dow Global Technologies LLC

Inventor： John O. Osby

IPC: C08F210/02 ,  C08L23/08 ,  C08F236/20

Abstract: The invention provides an ethylene-based polymer formed from reacting at least the following: ethylene and at least one asymmetrical polyene, comprising an “alpha, beta unsaturated end” and a “C—C double bond end,” and wherein the reaction takes place in the presence of at least one free-radical initiator.

公开(公告)号：US20180134825A1

公开(公告)日：2018-05-17

申请号：US15574315

申请日：2016-05-09

Applicant: Dow Global Technologies LLC

Inventor： John O. Osby

IPC: C08F210/02

CPC classification number: C08F210/02 ,  C08F2800/10 ,  C08F2222/1013 ,  C08F2500/11 ,  C08F2500/12 ,  C08F4/38 ,  C08F2/38 ,  C08F210/16 ,  C08F210/06

Abstract: The invention provides a process to form an ethylene-based polymer, and said ethylene-based polymer, said process comprising polymerizing a reaction mixture comprising ethylene and at least the following A) and B): A) a Rheology Modifying Agent (RMA) selected from the following i) through v), as described herein; B) at least one comonomer selected from the following a) through c), as described herein.

公开(公告)号：US20170335034A1

公开(公告)日：2017-11-23

申请号：US15646322

申请日：2017-07-11

Applicant: Dow Global Technologies LLC

Inventor： Otto J. Berbee ,  Stefan Hinrichs ,  Christopher R. Eddy ,  Sarat Munjal ,  John O. Osby ,  Sean W. Ewart

IPC: C08F210/02 ,  C09D123/04

CPC classification number: C08F210/02 ,  C09D123/04 ,  Y02P20/582 ,  C08F2220/281 ,  C08F2220/282 ,  C08F2/01

Abstract: A process to form an ethylene-based polymer including polymerizing ethylene and at least one asymmetrical polyene comprising an “alpha, beta unsaturated-carbonyl end” (“α,β unsaturated-carbonyl end”) and a “C—C double bond end,” wherein the polymerization takes place in the presence of at least one free-radical initiator; and wherein the polymerization takes place in a reactor configuration comprising at least two reaction zones, reaction zone 1 and reaction zone i (i≧2), wherein reaction zone i is downstream from reaction zone 1.

公开(公告)号：US20230399480A1

公开(公告)日：2023-12-14

申请号：US18034562

申请日：2021-10-29

Applicant: Dow Global Technologies LLC

Inventor： Brian R. Dorvel ,  Andrew T. Heitsch ,  Anson Sze Tat Wong ,  Stéphane Costeux ,  John O. Osby ,  Jian Yang

IPC: C08J9/00 ,  C08J9/12 ,  C08L23/06 ,  C08G77/42

CPC classification number: C08J9/0061 ,  C08J9/122 ,  C08L23/06 ,  C08G77/42 ,  C08J2323/06 ,  C08J2323/26 ,  C08J2383/10 ,  C08L2207/066 ,  C08J2203/06 ,  C08G2101/00

Abstract: According to various embodiments, a microcellular foam is provided, wherein the microcellular foam comprises a polymer blend, the polymer blend comprising: from 70 to 95% by weight low density polyethylene (LDPE); and from 5 to 30% by weight of polydimethylsiloxane grafted LDPE (PDMS-g-LDPE), wherein the microcellular foam has an average cell size of less than 60 μm.

公开(公告)号：US11674028B2

公开(公告)日：2023-06-13

申请号：US17091187

申请日：2020-11-06

Applicant: Dow Global Technologies LLC

Inventor： Bharat I. Chaudhary ,  Christopher R. Eddy ,  Sarat Munjal ,  Kalyan Sehanobish ,  Hayley Brown ,  John O. Osby ,  Jose Ortega

IPC: C08L23/26 ,  C08L23/08 ,  C08F2/01 ,  C08J3/24 ,  H01B3/30 ,  C08K5/14

CPC classification number: C08L23/26 ,  C08F2/01 ,  C08J3/24 ,  C08K5/14 ,  C08L23/0846 ,  H01B3/307 ,  C08F2500/11 ,  C08K5/14 ,  C08L23/26 ,  C08F210/02 ,  C08F2/02 ,  C08F210/02 ,  C08F2500/09 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/17

Abstract: An insulated wire or cable is made by a process comprising the steps of:



(A) extruding onto a covered or uncovered metal conductor or optical fiber a composition having a DF measured at 130° C. (60 Hz, 2 kV) or 120° C. (60 Hz, 8 kV) or 100° C. (60 Hz, 8 kV) of ≤0.5% and comprising:

(1) a high melt strength ethylene-based polymer made in a tubular reactor, and
(2) a peroxide, and


(B) crosslinking the high melt strength ethylene-based polymer.

公开(公告)号：US20220017666A1

公开(公告)日：2022-01-20

申请号：US17294538

申请日：2019-11-26

Applicant: Dow Global Technologies LLC

Inventor： Hayley A. Brown ,  Carmelo Declet Perez ,  John O. Osby ,  Sean W. Ewart ,  Sarat Munjal ,  Christopher R. Eddy ,  Mehmet Demirors ,  Jonathan D. Mendenhall ,  Ivan A. Konstantinov ,  Arkady L. Krasovskiy

IPC: C08F210/02 ,  C08F236/06 ,  C08F236/22 ,  C08F2/01 ,  C08L23/08

Abstract: The present disclosure provides a polymer composition. In an embodiment, an ethylene-based polymer composition is provided and is formed by high pressure (greater than or equal to 100 MPa), free-radical polymerization, by reacting: ethylene monomer and a mixture of hydrocarbon-based molecules, with each hydrocarbon-based molecule comprising three or more terminal alkene groups.

公开(公告)号：US11136419B2

公开(公告)日：2021-10-05

申请号：US16634914

申请日：2018-07-13

Applicant: Dow Global Technologies LLC

Inventor： Otto J. Berbee ,  Stefan Hinrichs ,  Bharat I. Chaudhary ,  Teresa P. Karjala ,  John O. Osby ,  Jose Ortega

IPC: C08F2/01 ,  C08F10/02 ,  C08F210/02 ,  C08F2/38 ,  C08F2/00

Abstract: A high pressure, free radical polymerization process to form an ethylene-based polymer, the process comprising at least the following step: polymerizing a reaction mixture comprising ethylene, using a polymerization system comprising the following: (A) a reactor configuration comprising at least one reactor that comprises at least two reaction zones, a first reaction zone (reaction zone 1) and an ith reaction zone (where i≥2); wherein the ith reaction zone is the last reaction zone, and wherein i is the total number of reaction zones; (B) at least two ethylene-based feed streams, a first ethylene-based feed stream and an nth ethylene-based feed stream, wherein the first ethylene-based feed stream is sent to the first reaction zone, and the nth ethylene-based feed stream is the last ethylene based feed stream sent to the reactor configuration; wherein n≤i; and RZn/RZ1 does not equal 1.0, where RZ1=mole fraction of make-up ethylene in the first ethylene-based feed stream to the first reaction zone; where RZn=mole fraction of make-up ethylene in the last ethylene-based feed stream sent to the reactor configuration; (C) a control system to control the percentage of the make-up ethylene in the first ethylene-based feed stream, and the percentage of the make-up ethylene in the nth ethylene-based feed stream; and wherein at least one reaction zone receives a CTA make-up feed stream comprising an alpha-olefin, and wherein the alpha-olefin has a chain transfer activity constant (Cs) value ≤0.10, and wherein the chain transfer activity constant (Cs) is measured at 1360 atm, 130° C.

公开(公告)号：US11084893B2

公开(公告)日：2021-08-10

申请号：US16617128

申请日：2018-06-01

Applicant: Dow Global Technologies LLC

Inventor： John O. Osby ,  Mehmet Demirors ,  Ivan A. Konstantinov

IPC: C08F10/02 ,  C08F210/18 ,  C08F210/02 ,  C08L101/00

Abstract: An ethylene-based polymer formed from reacting at least the following: ethylene and at least one asymmetrical polyene, and wherein the reaction takes place in the presence of at least one free-radical initiator; and wherein the at least one asymmetrical polyene is selected from Structure A, as described herein; Structure B, as described herein; or a combination of Structure A and Structure B.

公开(公告)号：US09944733B2

公开(公告)日：2018-04-17

申请号：US15100526

申请日：2014-12-23

Applicant: Dow Global Technologies LLC

Inventor： Otto J. Berbee ,  Christopher R. Eddy ,  Stefan Hinrichs ,  Sarat Munjal ,  John O. Osby

IPC: C08F210/02 ,  C08L23/08 ,  C09D123/08 ,  C08F10/02

CPC classification number: C08F210/02 ,  C08F10/02 ,  C08L23/08 ,  C08L23/0869 ,  C08L2205/025 ,  C09D123/08 ,  C09D123/0869 ,  C08F110/02 ,  C08F2/38 ,  C08F2500/09 ,  C08F2500/11 ,  C08F2500/26 ,  C08F2220/287 ,  C08F4/34

Abstract: A composition comprising an ethylene-based polymer, the ethylene-based polymer having the following properties: a) at least one incorporated structure derived from a polyene selected from the group consisting of i) through x), as described herein; and b) a Mw(abs) versus I2 relationship: Mw(abs)