公开(公告)号：US20160108157A1

公开(公告)日：2016-04-21

申请号：US14889271

申请日：2014-07-09

Applicant: Dow Global Technologies LLC

Inventor： Frank J. Cerk ,  Rongjuan Cong ,  Shrikant Dhodapkar ,  Selim Yalvac ,  Morgan M. Hughes ,  Timothy W. Gambrel ,  Yi Jin

IPC: C08F210/16

CPC classification number: C08F210/16 ,  C08F2/04 ,  C08F4/65908 ,  C08F4/65912 ,  Y02P20/582 ,  C08F4/6592

Abstract: The invention provides compositions, each comprising an ethylene/alpha-olefin interpolymer, which has a reduced level of a low density, low molecular weight oligomeric fraction, as indicated by an HCC value, as described herein, and reduced levels of inorganic content or lower Tm. The invention also provides processes for forming such interpolymers.

Abstract translation: 本发明提供了各自包含乙烯/α-烯烃互聚物的组合物，其如本文所述具有降低的低密度，低分子量低聚物部分的水平，如HCC值所示，并且降低的无机物含量或更低 Tm。 本发明还提供了形成这种互聚物的方法。

公开(公告)号：US11873377B2

公开(公告)日：2024-01-16

申请号：US16973649

申请日：2019-06-13

Applicant: Dow Global Technologies LLC

Inventor： Kyle E. Hart ,  Mehmet Demirors ,  Timothy W. Gambrel ,  Philip P. Fontaine ,  Vivek Kalihari ,  Francis O. Olajide, Jr. ,  Rajen M. Patel

IPC: C08F210/16 ,  C08L23/08 ,  C08J5/18 ,  C08F2/00

CPC classification number: C08J5/18 ,  C08F210/16 ,  C08L23/0815 ,  C08F2/001 ,  C08F2500/05 ,  C08F2500/10 ,  C08F2500/12 ,  C08J2323/06 ,  C08J2323/12 ,  C08L2203/16

Abstract: A blown film having a bimodal ethylene-based polymer including a high density fraction (HDF) from 3.0% to 25.0%, an I10/I2 ratio from 5.5 to 7.5, a short chain branching distribution (SCBD) less than or equal to 10 C, a zero shear viscosity ratio from 1.0 to 2.5, a density from 0.902 g/cc to 0.925 g/cc, and a melt index (I2) from 0.5 g/10 mins to 2.0 g/10 mins.

公开(公告)号：US20210246274A1

公开(公告)日：2021-08-12

申请号：US16973649

申请日：2019-06-13

Applicant: Dow Global Technologies LLC

Inventor： Kyle E. Hart ,  Mehmet Demirors ,  Timothy W. Gambrel ,  Philip P. Fontaine ,  Vivek Kalihari ,  Francis O. Olajide, Jr. ,  Rajen M. Patel

IPC: C08J5/18

Abstract: A blown film having a bimodal ethylene-based polymer including a high density fraction (HDF) from 3.0% to 25.0%, an I10/I2 ratio from 5.5 to 7.5, a short chain branching distribution (SCBD) less than or equal to 10 C, a zero shear viscosity ratio from 1.0 to 2.5, a density from 0.902 g/cc to 0.925 g/cc, and a melt index (I2) from 0.5 g/10 mins to 2.0 g/10 mins.

公开(公告)号：US11077585B2

公开(公告)日：2021-08-03

申请号：US15535792

申请日：2015-12-10

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Michael J. Zogg, Jr. ,  Timothy W. Gambrel ,  Johan Van Leeuwen

IPC: B29B9/06 ,  B29C48/285 ,  B29C48/365 ,  B29C48/78 ,  B29C48/695 ,  B29C48/37

Abstract: Disclosed herein is a system comprising a first pump; a pelletization system that comprises an underwater pelletizer; where the pelletization system is located downstream of the first pump and is in fluid communication with it; a direct line that is located downstream of the first pump and upstream of the pelletization system; where the direct line does not contain a pump or a heat exchanger; and a bypass line that is located downstream of the first pump and upstream of the pelletization system; where the bypass line comprises a second pump; where the first pump is operative to discharge the polymer to the pelletization system via the direct line when the polymer has a melt viscosity greater than 105 centipoise; and where the first pump is operative to discharge the polymer to the pelletization system via the bypass line when the polymer has a melt viscosity less than 105 centipoise.

公开(公告)号：US20200048385A1

公开(公告)日：2020-02-13

申请号：US16654973

申请日：2019-10-16

Applicant: Dow Global Technologies LLC

Inventor： Frank J. Cerk ,  Rongjuan Cong ,  Shrikant Dhodapkar ,  Selim Yalvac ,  Morgan M. Hughes ,  Timothy W. Gambrel ,  Yi Jin

IPC: C08F210/16 ,  C08F4/659

Abstract: The invention provides compositions, each comprising an ethylene/alpha-olefin interpolymer, which has a reduced level of a low density, low molecular weight oligomeric fraction, as indicated by an HCC value, as described herein, and reduced levels of inorganic content or lower Tm. The invention also provides processes for forming such interpolymers.

公开(公告)号：US11873393B2

公开(公告)日：2024-01-16

申请号：US16973639

申请日：2019-06-13

Applicant: Dow Global Technologies LLC

Inventor： Kyle E. Hart ,  Mehmet Demirors ,  Timothy W. Gambrel ,  Philip P. Fontaine ,  Pradeep Jain

IPC: C08F210/16 ,  C08L23/12 ,  C08F2/00 ,  C08F2/01 ,  C08F210/14 ,  C08F4/64 ,  C08F4/655 ,  C08F4/659

CPC classification number: C08L23/12 ,  C08F2/001 ,  C08F2/01 ,  C08F210/14 ,  C08F210/16 ,  C08F4/64193 ,  C08F4/6555 ,  C08F4/65904 ,  C08F2500/05 ,  C08F2500/10 ,  C08F2500/12 ,  C08L2203/16 ,  C08L2205/02 ,  C08L2207/062 ,  C08L2207/066

Abstract: A bimodal ethylene-based polymer, including a high density fraction (HDF) from 3.0% to 25.0%, wherein the high density fraction is measured by crystallization elution fractionation (CEF) integration at temperatures from 93° C. to 119° C., an I10/I2 ratio from 5.5 to 7.5, wherein I2 is the melt index when measured according to ASTM D 1238 at a load of 2.16 kg and temperature of 190° C. and I10 is the melt index when measured according to ASTM D 1238 at a load of 10 kg and temperature of 190° C., and a short chain branching distribution (SCBD) less than or equal to 10° C., wherein the short chain branching distribution is measured by CEF full width at half height.

公开(公告)号：US20230399421A1

公开(公告)日：2023-12-14

申请号：US18034612

申请日：2021-11-02

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： Timothy W. Gambrel ,  John D. Hebert

IPC: C08F6/10 ,  C08F6/02

CPC classification number: C08F6/10 ,  C08F6/02

Abstract: Disclosed herein is a method comprising discharging from a reactor to an absorber a product stream that comprises a polymer or interpolymer, a solvent and hydrochloric acid; absorbing the hydrochloric acid from the product stream in the absorber; discharging the product stream now devoid of substantially all hydrochloric acid to a first heat exchanger; wherein the first heat exchanger is operative to condense the product stream devoid of hydrochloric acid from the absorber; discharging a condensate from the first heat exchanger to a collection drum that is operative to receive a condensate from the first heat exchanger; splitting up the condensate in the collection drum into a slip stream and a second stream; and discharging the slip stream to a compressor; wherein the compressor is operative to pressurize the slip stream prior to recycling it to the absorber.

公开(公告)号：US11814456B2

公开(公告)日：2023-11-14

申请号：US16973626

申请日：2019-06-13

Applicant: Dow Global Technologies LLC

Inventor： Timothy W. Gambrel ,  Curvel Hypolite ,  Daniel S. Rynearson ,  Michael J. Zogg, Jr. ,  Kyle E. Hart ,  Michael D. Turner ,  Jorge Rubalcaba ,  Pradeep Jain ,  Mehmet Demirors

IPC: C08F210/16 ,  B01J8/00 ,  B01J8/18 ,  B01J19/00 ,  B01J19/18 ,  C08F2/01 ,  C08F2/06 ,  C08F4/64 ,  C08F2/00

CPC classification number: C08F210/16 ,  B01J8/008 ,  B01J8/1827 ,  B01J19/0066 ,  B01J19/1837 ,  C08F2/01 ,  C08F2/06 ,  C08F4/64193 ,  B01J2219/00033 ,  C08F2/001 ,  C08F2800/20

Abstract: A method of producing bimodal ethylene-based polymer includes reacting ethylene monomer and C3-C12 α-olefin comonomer in the presence of a first catalyst in an agitated reactor to produce a first polymer fraction, and outputting effluent from the agitated reactor. A second catalyst is added to the effluent downstream of the agitated reactor and upstream from a non-agitated reactor, the second catalyst facilitates production of a second polymer fraction having a density and melt index (I2) different from the first polymer fraction. The second catalyst and effluent are mixed in at least one mixer. The second catalyst, second polymer fraction, and the first polymer fraction are passed to the non-agitated reactor; and additional ethylene monomer, additional C3-C12 α-olefin comonomer, and solvent are passed to the non-agitated reactor to produce more second polymer fraction and thereby the bimodal ethylene-based polymer.

公开(公告)号：US20210246241A1

公开(公告)日：2021-08-12

申请号：US16973610

申请日：2019-06-13

Applicant: Dow Global Technologies LLC

Inventor： Kyle E. Hart ,  Mehmet Demirors ,  Timothy W. Gambrel ,  Philip P. Fontaine ,  Vivek Kalihari ,  Hrishikesh R. Munj ,  Jon W. Hobson ,  Rajen M. Patel

IPC: C08F210/16 ,  C08J5/18

Abstract: A cast film inducing a bimodal ethylene-based polymer having a high density fraction (HDF) from 3.0% to 10.0%, an I10/I2 ratio from 5.5 to 7.0, a short chain branching distribution (SCBD) less than or equal to 10° C., a density from 0.910 g/cc to 0.920 g/cc, and a melt index (I2) from 1.0 g/10 mins to 8.0 g/10 mins.

公开(公告)号：US11926684B2

公开(公告)日：2024-03-12

申请号：US16973610

申请日：2019-06-13

Applicant: Dow Global Technologies LLC

Inventor： Kyle E. Hart ,  Mehmet Demirors ,  Timothy W. Gambrel ,  Philip P. Fontaine ,  Vivek Kalihari ,  Hrishikesh R. Munj ,  Jon W. Hobson ,  Rajen M. Patel

IPC: C08F210/16 ,  C08J5/18

CPC classification number: C08F210/16 ,  C08J5/18 ,  C08F2500/05 ,  C08F2500/07 ,  C08F2500/10 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/19 ,  C08F2500/34 ,  C08J2323/06 ,  C08J2323/08 ,  C08J2323/12

Abstract: A cast film inducing a bimodal ethylene-based polymer having a high density fraction (HDF) from 3.0% to 10.0%, an I10/I2 ratio from 5.5 to 7.0, a short chain branching distribution (SCBD) less than or equal to 10° C., a density from 0.910 g/cc to 0.920 g/cc, and a melt index (I2) from 1.0 g/10 mins to 8.0 g/10 mins.