公开(公告)号：US20220176599A1

公开(公告)日：2022-06-09

申请号：US17603456

申请日：2020-05-29

Applicant: Dow Global Technologies LLC

Inventor： Keran Lu ,  Yijian Lin ,  Mridula Kapur ,  Tian Lan ,  Stephanie M. Whited ,  John L. Sugden ,  Siddharth Ram Athreya

IPC: B29C45/00 ,  B29D99/00

Abstract: An injection molded cap or closure having a weld line, wherein the injection molded cap or closure is formed from an ethylene-based resin comprising a high molecular weight component and a low molecular weight component.

公开(公告)号：US11131130B2

公开(公告)日：2021-09-28

申请号：US16624647

申请日：2018-06-18

Applicant: Dow Global Technologies LLC

Inventor： Yijian Lin ,  Yushan Hu ,  Todd A. Hogan ,  Colin LiPiShan ,  Keran Lu ,  Mridula Kapur

IPC: E05D1/02 ,  C08L23/06 ,  C08L23/14 ,  C08L23/18 ,  C08L23/08 ,  B29L31/22

Abstract: The present disclosure provides a plastic living hinge. The plastic living hinge includes a blend containing (A) an ethylene-based polymer; (B) a propylene-based polymer; and (C) a composite component selected from the group consisting of a block composite, a crystalline block composite, and a combination thereof.

公开(公告)号：US20210187920A1

公开(公告)日：2021-06-24

申请号：US17270554

申请日：2019-08-23

Applicant: Dow Global Technologies LLC

Inventor： Jeffrey E. Bonekamp ,  Ronald Wevers ,  Scott T. Matteucci ,  Arkady L. Krasovskiy ,  Kefu Sun ,  Keran Lu

IPC: B32B27/08 ,  B32B1/00 ,  B32B27/32 ,  B32B27/20 ,  B32B27/30 ,  B32B27/34 ,  B32B27/36 ,  B32B25/08 ,  B32B25/14 ,  B32B25/16 ,  A61F5/441

Abstract: The present disclosure provides a film. In an embodiment, a multilayer film is provided and includes (A) a seal layer, (B) a barrier layer, and (C) an odor control layer. The odor control layer includes an odor control composition containing (A) from 85 wt % to 99.5 wt % of an olefin-based polymer and (B) from 15 wt % to 0.5 wt % of an odor suppressant. The odor suppressant includes a blend of: (i) an ionomer, (ii) particles of zinc oxide, and (iii) particles of copper oxide. The composition has a methyl mercaptan odor suppression value of greater than 45% as measured in accordance with ASTM D5504-12.

公开(公告)号：US20240301117A1

公开(公告)日：2024-09-12

申请号：US18264596

申请日：2022-05-13

Applicant: Dow Global Technologies LLC

Inventor： Keran Lu ,  Stephanie M. Whited ,  Mridula Kapur

IPC: C08F297/08

CPC classification number: C08F297/083

Abstract: Bimodal high density polyethylene compositions can achieve an improved balance of stress crack resistance and processability by selecting the higher molecular weight and lower molecular weight components such that (1) the lower molecular weight component has a relatively high complementary density, which is a calculated property shown by the formula below, and (2) the higher molecular weight component of the composition has a moderately-low density and narrow molecular weight distribution. This combination of properties provides improved balance of stress crack resistance and processability without having to modify the properties of the higher molecular weight component.

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：US11634569B2

公开(公告)日：2023-04-25

申请号：US16767749

申请日：2019-08-26

Applicant: Dow Global Technologies LLC

Inventor： Arkady L. Krasovskiy ,  Kefu Sun ,  Keran Lu ,  Scott T. Matteucci ,  Alexander Williamson ,  Jose Eduardo Ruiz ,  Jeffrey E. Bonekamp

IPC: C08L23/08 ,  C08K3/22

Abstract: A composition for odor control includes (A) from 85 wt % to 99.5 wt % of an olefin-based compound and (B) from 15 wt % to 0.5 wt % of an odor suppressant. The odor suppressant includes a blend of (i) an ionomer, (ii) particles of zinc oxide, and (iii) particles of copper oxide. The composition has a methyl mercaptan odor suppression value of greater than 45% as measured in accordance with ASTM D5504-12.

公开(公告)号：US11161949B2

公开(公告)日：2021-11-02

申请号：US16608648

申请日：2019-02-22

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Arkady L. Krasovskiy ,  Kefu Sun ,  Keran Lu ,  Scott T. Matteucci ,  Alexander Williamson ,  Jose Eduardo Ruiz ,  Michelle Gallagher ,  Harpreet Singh

IPC: C08J5/18 ,  C08L23/06

Abstract: The present disclosure provides a film. In an embodiment, a film for suppressing odors is provided and includes a composition of (A) from 85 wt % to 99 wt % of a thermoplastic polymer and (B) from 15 wt % to 1 wt % of an odor suppressant. The odor suppressant is a blend composed of (Bi) particles of zinc oxide and (Bii) zinc ionomer. The zinc oxide particles (Bi) have a D50 particle size from 100 nm to 3000 nm, a surface area from 1 m2/g to 9 m2/g, and a porosity less than 0.020 m3/g. The composition has a methyl mercaptan odor suppression value less than 70 at 3 days exposure to methyl mercaptan as measured in accordance with ASTM D5504-12.

公开(公告)号：US20200055018A1

公开(公告)日：2020-02-20

申请号：US16608985

申请日：2019-02-22

Applicant: Dow Global Technologies LLC ,  Rohm and Haas Company

Inventor： Arkady L. Krasovskiy ,  Kefu Sun ,  Keran Lu ,  Scott T. Matteucci ,  Alexander Williamson ,  Jose Eduardo Ruiz ,  Harpreet Singh ,  Michelle Gallagher ,  Jeffrey E. Bonekamp

IPC: B01J20/06 ,  B01J20/26 ,  B01J20/28 ,  B01J20/30 ,  A61L9/014

Abstract: The present disclosure provides a composition. In an embodiment, the composition includes (A) from 85 wt % to 99 wt % of an olefin-based polymer and (B) from 15 wt % to 1 wt % of an odor suppressant. The odor suppressant is a blend of (i) particles of zinc oxide, and (ii) zinc ionomer. The zinc oxide particles have a D50 particle size from 100 nm to 3000 nm, a surface area from 1 m2/g to 9 m2/g, and a porosity less than 0.020 m3/g. The composition has a methyl mercaptan odor suppression value of less than 70 at 3 days as measured in accordance with ASTM D5504-12.

公开(公告)号：US20240117165A1

公开(公告)日：2024-04-11

申请号：US18264593

申请日：2022-05-13

Applicant: Dow Global Technologies LLC

Inventor： Keran Lu ,  Stephanie M. Whited ,  Mridula Kapur

IPC: C08L23/08 ,  C08L23/06

CPC classification number: C08L23/0815 ,  C08L23/06 ,  C08L2203/10 ,  C08L2205/025 ,  C08L2207/062

Abstract: Bimodal high density polyethylene compositions can achieve an improved balance of stress crack resistance and processibility by selecting the higher molecular weight and lower molecular weight components such that (1) the higher molecular weight component has a molecular weight distribution below 4, (2) the lower molecular weight component has a complementary density of at least 0.976 g/cm3, and (3) the overall bimodal copolymer has a relatively broad molecular weight distribution. This combination of properties can provide improved balance of stress crack resistance and processibility.

公开(公告)号：US20230348643A1

公开(公告)日：2023-11-02

申请号：US17907363

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 ,  Teresita Kashyap ,  Luca Martinetti

IPC: C08F210/18 ,  C08F4/64 ,  C08F4/6592 ,  C08F4/76 ,  C08L23/08

CPC classification number: C08F210/18 ,  C08F4/64044 ,  C08F4/6592 ,  C08F4/76 ,  C08L23/0892 ,  C08L2207/07

Abstract: Embodiments of this disclosure are directed to ethylene-based polymers. The ethylene-based polymers are polymerized units derived from ethylene, diene, and optionally one or more C3-C12α-olefins. The ethylene-based polymer includes a melt strength greater than negative 17 times the log base 10 of the melt index plus 25 ((MS)>−17*log (MI)+25). In the equation, MS is the melt strength in cN and MI is the melt index in g/10 min according to ASTM D1238. The ethylene-based polymer also includes an average g′ that is greater than 0.70. The average g′ is an intrinsic viscosity ratio determined by gel permeation chromatography using a triple detector.