公开(公告)号：US11975466B2

公开(公告)日：2024-05-07

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: B29C64/00 ,  B29C45/00 ,  B29D99/00 ,  B29K23/00

CPC classification number: B29C45/0001 ,  B29D99/0096 ,  B29K2023/065 ,  B29K2023/08 ,  B29K2995/0063 ,  B29K2995/0086 ,  B29K2995/0088

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：US11667776B2

公开(公告)日：2023-06-06

申请号：US16958895

申请日：2019-08-26

Applicant: Dow Global Technologies LLC

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

IPC: D01F6/04 ,  A61L15/46 ,  C08L23/06 ,  A61L15/18 ,  A61L15/24 ,  D01F1/10 ,  C08L23/08 ,  C08K3/22

CPC classification number: C08L23/06 ,  A61L15/18 ,  A61L15/24 ,  A61L15/46 ,  D01F1/10 ,  D01F6/04 ,  C08K2003/2248 ,  C08K2003/2296 ,  C08L23/0815 ,  C08L2203/12 ,  C08L2205/025

Abstract: The present disclosure provides a fiber and fabrics made therefrom. In an embodiment, a fiber is provided and includes an odor control composition. The odor control composition includes (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: (i) an ionomer, (ii) particles of zinc oxide, and (iii) particles of copper oxide.

公开(公告)号：US20210363337A1

公开(公告)日：2021-11-25

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：US20200181341A1

公开(公告)日：2020-06-11

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：US20230128663A1

公开(公告)日：2023-04-27

申请号：US17907464

申请日：2021-03-26

Applicant: Dow Global Technologies LLC

Inventor： Robert D.J. Froese ,  Keran Lu ,  Robert L. Sammler

IPC: C08F210/18

Abstract: The ethylene-based polymers include a low molecular weight polymer fraction and a high molecular weight polymer fraction, which are divided by Smax on a molecular weight distribution (MWD) curve determined via absolute gel permeation chromatography. The low molecular weight polymer fraction and the high molecular weight polymer fraction include a Ladder character, L, defined for a given absolute molecular weight (MW) as the fit of the log of the intrinsic viscosity [h] versus the log of the absolute MW (M) curve using the expression, log[η]=log(β)+α log(M)−L*α log(2) according to a Mark-Houwink-Sakurada curve, in which log(β) is the intercept and ax is the slope. The low molecular weight polymer fraction has an MW below Smax and all values of L between −0.35 to 0.35; and the high molecular weight polymer fraction has an MW above Smax and a maximum value of L between 0.8 and 1.5.

公开(公告)号：US11261316B2

公开(公告)日：2022-03-01

申请号：US16626041

申请日：2018-06-25

Applicant: Dow Global Technologies LLC

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

IPC: C08J5/18 ,  C08L23/08 ,  C08L23/06 ,  C08L53/00 ,  E05D1/02

Abstract: The present disclosure provides a plastic living hinge. The plastic living hinge includes a blend containing (A) an ethylene-based polymer; and (B) 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：US10738182B2

公开(公告)日：2020-08-11

申请号：US15959679

申请日：2018-04-23

Applicant: Dow Global Technologies LLC

Inventor： Keran Lu ,  Yijian Lin ,  Todd O. Pangburn ,  Siddharth Ram Athreya ,  Laura Nunez ,  John L. Sugden ,  Todd A. Hogan ,  Andrew Heitsch ,  David T. Gillespie

IPC: B29C45/00 ,  C08L23/06 ,  C08L23/08 ,  C08L27/18 ,  B29K23/00 ,  B29D99/00

Abstract: A molded article formed from a polymer composition, the polymer composition consisting essentially of: an ethylene homopolymer or ethylene/alpha-olefin copolymer; greater than 20 ppm of a fluoropolymer; and optionally, up to 5 wt. % of one or more of processing aids, acid neutralizers, stabilizers, phosphites, antioxidants, metal de-activators, pigments or colorants, or fillers; wherein the molded article exhibits an oxygen transmission rate [OTR, (cc*mm)/(m2*day*atm)]≤−3181 (cc2*mm)/g*m2*day*atm)×[Density, g/cc]+3077, (cc*mm)/(m2*day*atm).

公开(公告)号：US20190322846A1

公开(公告)日：2019-10-24

申请号：US15959679

申请日：2018-04-23

Applicant: Dow Global Technologies LLC

Inventor： Keran Lu ,  Yijian Lin ,  Todd O. Pangburn ,  Siddharth Ram Athreya ,  Laura Nunez ,  John L. Sugden ,  Todd A. Hogan ,  Andrew Heitsch ,  David T. Gillespie

IPC: C08L23/06 ,  C08L23/08 ,  C08L27/18 ,  B29C45/00

Abstract: A molded article formed from a polymer composition, the polymer composition consisting essentially of: an ethylene homopolymer or ethylene/alpha-olefin copolymer; greater than 20 ppm of a fluoropolymer; and optionally, up to 5 wt. % of one or more of processing aids, acid neutralizers, stabilizers, phosphites, antioxidants, metal de-activators, pigments or colorants, or fillers; wherein the molded article exhibits an oxygen transmission rate [OTR, (cc*mm)/(m2*day*atm)]≤−3181 (cc2*mm)/g*m2*day*atm)×[Density, g/cc]+3077, (cc*mm)/(m2*day*atm)

公开(公告)号：US20230407067A1

公开(公告)日：2023-12-21

申请号：US18251005

申请日：2021-12-16

Applicant: Dow Global Technologies LLC

Inventor： Keran Lu ,  Russell T. Cooper ,  Mubashir Qamar Ansari ,  Fengyi Zhang

IPC: C08L23/08 ,  C08L23/06 ,  B29C45/00

CPC classification number: C08L23/0815 ,  C08L23/06 ,  B29C45/0001 ,  C08L2205/025 ,  C08L2205/06 ,  B29K2023/0658

Abstract: A polyethylene composition comprising suitable for use in injection molding, the polyethylene composition comprising: from 2 wt. % to 25 wt. % of a high molecular weight component consisting of an ethylene/alpha-olefin copolymer, wherein the high molecular weight component has a density of from 0.910 g/cc to 0.971 g/cc, a melt index (12.16) of greater than 0.5 g/10 min to less than 1.5 g/10 min, a molecular weight distribution (Mw/Mn) of 6.0 to 20.0; from 75 wt. % to 98 wt. % a low molecular weight component consisting of an ethylene homopolymer or an ethylene/alpha-olefin copolymer, wherein the ethylene homopolymer or an and a molecular weight distribution (Mw/Mn) of less than 6.0; wherein the polyethylene composition has a shrinkage anisotropy that is less than the shrinkage anisotropy of the low molecular weight component.

公开(公告)号：US20230125442A1

公开(公告)日：2023-04-27

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

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.