公开(公告)号：US20210155802A1

公开(公告)日：2021-05-27

申请号：US16624556

申请日：2017-06-30

Applicant: Dow Global Technologies LLC

Inventor： Gangwei Sun ,  XianMin Xu ,  Mohamed Esseghir ,  Peng Gao ,  Youjun Wu ,  Lingfeng Yu

IPC: C08L91/00 ,  C08L53/02 ,  G02B6/44

Abstract: A filling composition comprises (A) a mineral oil having a kinematic viscosity from 80 cSt to 100 cSt at 40° C.; (B) a styrene-ethylene/propylene diblock copolymer; and (C1) a propylene/ethylene copolymer having a weight average molecular weight (Mw) from 5,000 to 200,000 or (C2) an ethylene/propylene copolymer having a weight average molecular weight (Mw) from 5,000 to 200,000. The filling composition is used as a filling composition in a buffer tube.

公开(公告)号：US20200263006A1

公开(公告)日：2020-08-20

申请号：US15781587

申请日：2016-12-06

Applicant: Dow Global Technologies LLC

Inventor： Karl M. Seven ,  Mohamed Esseghir

IPC: C08L23/06

Abstract: Wet buffer tubes for use in fiber optic cables are made from a composition comprising in weight percent (wt %) based on the weight of the composition: (A) 22-49% polypropylene (PP), (B) 50-65% high density polyethylene (HDPE), (C) 7-12% compatibilizer comprising in wt % based on the weight of the compatibilizer: (1) 30-90% olefin block composite comprising ethylene-propylene (EP) copolymer, isotactic polypropylene (iPP), and an EP-iPP diblock polymer, and (2) 10-70% maleic anhydride grafted HDPE (MAH-g-HDPE); and (D) 0.05-5.0% nucleating agent.

公开(公告)号：US10712522B2

公开(公告)日：2020-07-14

申请号：US16320755

申请日：2017-06-15

Applicant: Dow Global Technologies LLC

Inventor： Mohamed Esseghir ,  Karl M. Seven ,  Xiaodong Zhang ,  Yi Jin

IPC: G02B6/44 ,  H01B3/44 ,  H01B3/22 ,  H01B7/285 ,  C08L91/00 ,  H01B11/22 ,  H01B3/28

Abstract: A flooding composition comprising in weight percent (wt %) based on the weight of the composition: (A) 10-80 wt % of a first component comprising a polyolefin elastomer; and (B) 20-90 wt % of a second component comprising a bio-based fluid.

公开(公告)号：US10654997B2

公开(公告)日：2020-05-19

申请号：US16086682

申请日：2016-03-25

Applicant: Dow Global Technologies LLC

Inventor： Mohamed Esseghir ,  Gangwei Sun ,  Yonghua Gong

IPC: C08L23/12 ,  C08L23/06 ,  G02B6/44 ,  H01B3/44 ,  C08L23/14 ,  C08L53/00

Abstract: Buffer tubes made from a composition comprising: (A) polypropylene, (B) high density polyethylene (HDPE), (C) propylene-ethylene copolymer (PE copolymer), (D) olefin block composite, and (E) optionally, one or more of a nucleating agent, filler and additive, exhibit reduced stress whitening as compared to buffer tubes made from conventional polypropylene compositions.

公开(公告)号：US20200148868A1

公开(公告)日：2020-05-14

申请号：US16742357

申请日：2020-01-14

Applicant: Dow Global Technologies LLC

Inventor： Gangwei Sun ,  Mohamed Esseghir ,  Xianmin Xu ,  Chester J. Kmiec

IPC: C08L23/06 ,  B29C48/40 ,  H01B3/44 ,  B29C48/285 ,  C08J9/10 ,  C08J9/00 ,  C08L23/26 ,  C08K5/23 ,  C08K5/098 ,  C08K5/092 ,  C08K3/26

Abstract: A process of foaming a polyolefin, e.g., polyethylene, composition using as a nucleator a combination of (A) azodicarbonamide, and (B) a mixture of (1) a first component consisting of at least one of citric acid and an alkali metal citrate, and (2) a second component consisting of at least one of an alkali metal citrate, a di-alkali metal hydrogen citrate, an alkali metal dihydrogen citrate and an alkali metal bicarbonate, with the proviso that the mixture is not solely composed of alkali metal citrate.

公开(公告)号：US10563147B2

公开(公告)日：2020-02-18

申请号：US15557710

申请日：2016-03-14

Applicant: Dow Global Technologies LLC

Inventor： Yichi Zhang ,  Mohamed Esseghir ,  Chester J. Kmiec ,  Yi Jin ,  Selim Yalvac

IPC: C10M143/08 ,  C10M105/04 ,  H01B3/22 ,  H01B3/44 ,  H01B3/28 ,  G02B6/44

Abstract: Flooding compounds for telecommunications cables. Such flooding compounds contain a polyolefin elastomer and a hydrocarbon oil. The polyolefin elastomer has a crystallinity ranging from 10 less than 50 weight percent and a dynamic viscosity of 50,000 centipoise or less at 177° C. The hydrocarbon oil has a kinematic viscosity of 200 centistokes or less at 40° C.

公开(公告)号：US20200041742A1

公开(公告)日：2020-02-06

申请号：US16484593

申请日：2018-01-17

Applicant: Dow Global Technologies LLC

Inventor： Mohamed Esseghir ,  Chester J. Kmiec ,  Wenyi Huang ,  Thomas J. Parsons

IPC: G02B6/44 ,  H01B7/18

Abstract: The present disclosure provides a coated conductor. The coated conductor includes a conductor and a coating on the conductor. The coating includes (i) an annular wall composed of a polymeric material, the annular wall surrounding at least a portion of the conductor; (ii) a plurality of channels extending along a length of an outer surface of the annular wall; and (iii) a slip material located in the channels, the slip material forming a capillary structure in the channels, and the capillary structures protruding radially outward from the annular wall.

公开(公告)号：US10550249B2

公开(公告)日：2020-02-04

申请号：US15528850

申请日：2014-11-28

Applicant: Dow Global Technologies LLC

Inventor： Gangwei Sun ,  Mohamed Esseghir ,  Chester J. Kmiec ,  Lei Ying ,  Yabin Sun ,  XianMin Xu

IPC: C08J3/22 ,  C08J9/00 ,  C08J9/28 ,  C08L23/04 ,  C08L23/06 ,  C08L27/18 ,  H01B3/44

Abstract: A polyolefin composition is foamed by a process in which a nucleator is used, and the nucleator comprises 80% or more of unagglomerated fluororesin particles and/or agglomerates of fluororesin particles in which both the unagglomerated particles and the agglomerates are less than 1 μm in size.

公开(公告)号：US10414892B2

公开(公告)日：2019-09-17

申请号：US15528694

申请日：2014-11-28

Applicant: Dow Global Technologies LLC

Inventor： Gangwei Sun ,  Mohamed Esseghir ,  Chester J. Kmiec

IPC: C08J9/00 ,  C08J9/10 ,  C08J9/12 ,  C08L23/06 ,  H01B3/44 ,  H01B7/02 ,  C08K5/23 ,  C08L27/18

Abstract: The process of foaming a polyolefin, e.g., polyethylene, composition using as a nucleator a combination an azodicarbonamide (ADCA) and a fluororesin at a ADCA: fluororesin weight ratio of 60:40 to 20:80. The synergic effect between these two nucleating agents results in a higher nuclei density and a foamed product with a smaller cell size as compared to processes using and products produced by the use of neat PTFE or neat ADCA alone as the nucleating agent.

公开(公告)号：US10407568B2

公开(公告)日：2019-09-10

申请号：US15967766

申请日：2018-05-01

Applicant: Dow Global Technologies LLC

Inventor： Haiyang Yu ,  Yanli Huo ,  Mohamed Esseghir ,  Saurav S. Sengupta ,  Jeffrey M. Cogen

IPC: C08L23/16 ,  C08K3/22 ,  C08K5/09 ,  H01B3/18 ,  H01B3/44 ,  H02G15/18

Abstract: A cold shrink article made from a composition comprising (A) an ethylene/α-olefin interpolymer; (B) a filler; and (C) an α,β-unsaturated carboxylic acid. The composition may optionally include additives selected from the group consisting of plasticizer, peroxide curing agent, antioxidant, process additives, flame retardant and combinations thereof.