公开(公告)号：US20180127523A1

公开(公告)日：2018-05-10

申请号：US15574291

申请日：2016-06-23

Applicant: Dow Global Technologies LLC

Inventor： Stefan Hinrichs ,  Cornelis F. J. Den Doelder ,  Nhi T. Y. Dang ,  Otto J. Berbee

IPC: C08F110/02

CPC classification number: C08F110/02 ,  B01J19/2415 ,  C08F2/001 ,  C08F2/01 ,  C08F2/38 ,  C08F4/38 ,  C08F2400/02 ,  C08F2500/08 ,  C08F2500/12 ,  Y02P20/582 ,  C08F2500/17

Abstract: The invention provides an ethylene homopolymer formed from a free-radical, high pressure polymerization process in a tubular reactor system, said homopolymer comprising the following properties: (A) a density from 0.9190 to 0.9250 g/cc; (B) a hexane extractable level that is less than, or equal to, 2.6 wt %, based on the total weight of the polymer; (C) a G′ (at G″=500 Pa, 170 C) that meets the following equation: G′≥D+E[log (I2)], where D=150 Pa and E=−60 Pa/[log(dg/min)]; and (D) a melt in dex (I2) from 1.0 to 20 dg/min.

公开(公告)号：US20220227905A1

公开(公告)日：2022-07-21

申请号：US17599723

申请日：2020-03-27

Applicant: Dow Global Technologies LLC

Inventor： Robert D. J. Froese ,  Teresita Kashyap ,  Oscar D. Redwine ,  Daniel J. Arriola ,  Robert L. Sammler ,  Cornelis F. J. Den Doelder

IPC: C08F210/18

Abstract: Embodiments of this disclosure include polymers comprising the polymerized product of ethylene, at least one diene comonomer, and optionally at least one C3 to C14 comonomer. The polymer comprises tri-functional long-chain branches resulting from the diene that occur at a frequency of at least 0.03 per 1000 carbon atoms of the polymer. The diene has a structure according to formula (I):

公开(公告)号：US10538652B2

公开(公告)日：2020-01-21

申请号：US15820083

申请日：2017-11-21

Applicant: Dow Global Technologies LLC

Inventor： Cornelis F. J. Den Doelder ,  Karl Zuercher ,  Otto J. Berbee ,  Jian Wang ,  Teresa P. Karjala

IPC: C08L23/08 ,  C08L23/06 ,  C09D123/06 ,  C08J9/00

Abstract: The invention provides a composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and a second ethylene-based polymer, formed by a high pressure, free-radical polymerization process, such composition comprising the following properties: a) a melt index (I2) from 2.0 to 10 dg/min; b) a density from 0.922 to 0.935 g/cc; and wherein the second ethylene-based polymer is present in an amount from 60 to 95 weight percent, based on the sum of the weight of the first polymer and the second polymer; and wherein the second ethylene-based polymer has a density greater than, or equal to, 0.924 g/cc; and wherein the first ethylene-based polymer has a melt index less than 2.5 dg/min.

公开(公告)号：US20180319910A1

公开(公告)日：2018-11-08

申请号：US16028194

申请日：2018-07-05

Applicant: Dow Global Technologies LLC

Inventor： Otto J. Berbee ,  Cornelis F. J. Den Doelder ,  Teresa P. Karjala ,  Karl Zuercher ,  Jian Wang ,  Stefan Hinrichs

IPC: C08F110/02 ,  C09D123/06 ,  C08L23/08 ,  C08L23/06 ,  C09D123/08 ,  C08F4/38

CPC classification number: C08F110/02 ,  C08L23/06 ,  C08L23/0815 ,  C08L23/0869 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2207/066 ,  C09D123/06 ,  C09D123/0815 ,  C09D123/0869 ,  C08F2500/12 ,  C08F2500/11 ,  C08F4/38

Abstract: The invention provides a composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties: a) a Mw(abs) versus I2 relationship: Mw(abs)

公开(公告)号：US11041258B2

公开(公告)日：2021-06-22

申请号：US16081279

申请日：2017-03-03

Applicant: Dow Global Technologies LLC

Inventor： David Lopez ,  Cornelis F. J. Den Doelder ,  Jesus Nieto ,  Barbara Bonavoglia ,  Frederik E. Gemoets

IPC: D01F6/04 ,  E01C13/08 ,  D01F6/30 ,  D01F6/46 ,  C08F210/16 ,  C08J5/18 ,  C08L23/08

Abstract: The present disclosure provides a linear low density polyethylene composition, tapes, fibers and filaments, artificial turfs, and method of making the same. The linear low density polyethylene composition according to the present disclosure exhibits each of the following properties: (1) a CEF fraction from 70 to 90° C. of equal to or greater than 80% of the total CEF fractions; (2) a melt index, I2, measured according to ASTM D 1238 (2.16 kg @190° C.), in the range of equal to or greater than 2.0 g/10 min and equal to or less than 5.0 g/10 min; and (3) a melt flow ratio, I10/I2, of equal to or less than 6.7.

公开(公告)号：US09683058B2

公开(公告)日：2017-06-20

申请号：US14972346

申请日：2015-12-17

Applicant: Dow Global Technologies LLC

Inventor： Otto J. Berbee ,  Cornelis F. J. Den Doelder ,  Stefan Hinrichs ,  Teresa P. Karjala

IPC: C08F210/02 ,  C08F110/02 ,  C08L23/04 ,  C08F10/02 ,  C09D123/06 ,  C09D123/08 ,  C08F218/08 ,  C08F220/18

CPC classification number: C08F10/02 ,  C08F110/02 ,  C08F210/02 ,  C08F218/08 ,  C08F220/18 ,  C08L23/04 ,  C09D123/06 ,  C09D123/0815 ,  C08F2/00 ,  C08F2/38 ,  C08F2500/04 ,  C08F2500/08 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/19 ,  C08F220/06 ,  C08F220/14 ,  C08L23/06 ,  C08F4/38

Abstract: The invention provides an ethylene-based polymer comprising the following properties: a) a melt index (I2)≧2.0 dg/min; b) a Mw(abs) versus I2 relationship: Mw(abs)

公开(公告)号：US11976146B2

公开(公告)日：2024-05-07

申请号：US17907467

申请日：2021-03-26

Applicant: Dow Global Technologies LLC

Inventor： Robert D. J. Froese ,  Keran Lu ,  Robert L. Sammler ,  Cornelis F. J. Den Doelder

IPC: C08F210/18

CPC classification number: C08F210/18

Abstract: Embodiments of this disclosure are directed to ethylene-based polymers. The ethylene-based polymer are polymerized units derived from ethylene, diene, and optionally, one or more C3-C12 α-olefins. The ethylene-based polymer includes a melt viscosity ratio (V0.1/V100) at 190 C greater than 20. The V0.1 is the viscosity of the ethylene-based polymer at 190 C at a frequency of 0.1 radians/second, and the V100 is the viscosity of the ethylene-based polymer at 190 C at a frequency of 100 radians/second. Additionally, the ethylene-based polymer includes an average g greater than 0.86, where the average g′ is an intrinsic viscosity ratio determined by gel permeation chromatography using a triple detector.

公开(公告)号：US11111322B2

公开(公告)日：2021-09-07

申请号：US16631480

申请日：2018-07-13

Applicant: Dow Global Technologies LLC

Inventor： Cornelis F. J. Den Doelder ,  Nhi T. Y. Dang ,  Eva-Maria Kupsch ,  Edward L. Lee

IPC: C08F110/02 ,  B29C48/02 ,  C08L23/06 ,  B29C48/154 ,  C08F4/38

Abstract: A polyethylene homopolymer comprising the following properties: a) a melt index (I2) from 1.0 to 3.5 dg/min; b) a Mw(abs) versus I2 relationship: Mw(abs)≥A+B(I2), where A=3.20×105 g/mole, and B=−8.00×103 (g/mole)/(dg/min); c) a Mw(abs) versus I2 relationship: Mw(abs)≤C+D(I2), where C=3.90×105 g/mole, and D=−8.00×103 (g/mole)/(dg/min).

公开(公告)号：US10975179B2

公开(公告)日：2021-04-13

申请号：US16028194

申请日：2018-07-05

Applicant: Dow Global Technologies LLC

Inventor： Otto J. Berbee ,  Cornelis F. J. Den Doelder ,  Teresa P. Karjala ,  Karl Zuercher ,  Jian Wang ,  Stefan Hinrichs

IPC: C08L23/06 ,  C08F110/02 ,  C09D123/08 ,  C08L23/08 ,  C09D123/06

Abstract: The invention provides a composition comprising a first ethylene-based polymer, formed by a high pressure, free-radical polymerization process, and comprising the following properties: a) a Mw(abs) versus I2 relationship: Mw(abs)

公开(公告)号：US10730973B2

公开(公告)日：2020-08-04

申请号：US15737474

申请日：2016-06-16

Applicant: Dow Global Technologies LLC

Inventor： Otto J. Berbee ,  Cornelis F. J. Den Doelder ,  Stefan Hinrichs ,  Teresa P. Karjala ,  John O. Osby

IPC: C08F110/02 ,  C08F2/38 ,  C08F4/38

Abstract: Ethylene-based polymers comprising the following properties: (A) a density less than 0.9190 g/cc; (B) a hexane extractable level that meets the following equation: hexane extractable level ≤A+B [log(12)], where A=2.65 wt %, and B—0.25 wt %[log (dg/min)]; based on total weight of the ethylene-based polymer; (C) a G′ (at G″=500 Pa, 1 70° C.) that meets the following equation: G′≥C+D [log(12)], where C=150 Pa, and D=−60 Pa/[log(dg/min)]; and (D) a melt index (12) from 0.7 to 20 dg/min; are made in high pressure tubular process that comprises at least three reaction zones with the peak polymerization temperature of the first reaction zone ≥320° C. and the peak polymerization temperature of the last reaction zone ≤290° C.