公开(公告)号：US11155693B2

公开(公告)日：2021-10-26

申请号：US15755722

申请日：2016-08-22

Applicant: Dow Global Technologies LLC

Inventor： Bharat I. Chaudhary ,  Juan C. Tuberquia ,  Rennisha Wickham ,  Philip P. Fontaine ,  Colin Li Pi Shan ,  Morgan M. Hughes ,  Jan Bazen ,  Edward O. Madenjian ,  Gregory J. Brennan

IPC: H01B3/30 ,  C08K5/14 ,  C08F210/16 ,  C08J3/24 ,  H01B3/44

Abstract: Crosslinkable polymeric compositions comprising (a) 10 to 99 weight percent of an ethylene-based interpolymer having the following properties: (i) a density of 0.93 g/cm3 or less, (ii) a high-shear viscosity (V100) at 190° C. and 10% strain of 1,200 Pa-s or less, and (iii) a shear thinning ratio (V0.1/V100) at 190° C. and 10% strain of at least 8; and (b) 0 to less than 10 weight percent of a filler, where the ethylene-based interpolymer is not prepared in a high-pressure reactor. Such crosslinkable polymeric compositions may be employed as insulation layers in flexible power cables.

公开(公告)号：US11136419B2

公开(公告)日：2021-10-05

申请号：US16634914

申请日：2018-07-13

Applicant: Dow Global Technologies LLC

Inventor： Otto J. Berbee ,  Stefan Hinrichs ,  Bharat I. Chaudhary ,  Teresa P. Karjala ,  John O. Osby ,  Jose Ortega

IPC: C08F2/01 ,  C08F10/02 ,  C08F210/02 ,  C08F2/38 ,  C08F2/00

Abstract: A high pressure, free radical polymerization process to form an ethylene-based polymer, the process comprising at least the following step: polymerizing a reaction mixture comprising ethylene, using a polymerization system comprising the following: (A) a reactor configuration comprising at least one reactor that comprises at least two reaction zones, a first reaction zone (reaction zone 1) and an ith reaction zone (where i≥2); wherein the ith reaction zone is the last reaction zone, and wherein i is the total number of reaction zones; (B) at least two ethylene-based feed streams, a first ethylene-based feed stream and an nth ethylene-based feed stream, wherein the first ethylene-based feed stream is sent to the first reaction zone, and the nth ethylene-based feed stream is the last ethylene based feed stream sent to the reactor configuration; wherein n≤i; and RZn/RZ1 does not equal 1.0, where RZ1=mole fraction of make-up ethylene in the first ethylene-based feed stream to the first reaction zone; where RZn=mole fraction of make-up ethylene in the last ethylene-based feed stream sent to the reactor configuration; (C) a control system to control the percentage of the make-up ethylene in the first ethylene-based feed stream, and the percentage of the make-up ethylene in the nth ethylene-based feed stream; and wherein at least one reaction zone receives a CTA make-up feed stream comprising an alpha-olefin, and wherein the alpha-olefin has a chain transfer activity constant (Cs) value ≤0.10, and wherein the chain transfer activity constant (Cs) is measured at 1360 atm, 130° C.

公开(公告)号：US20210189109A1

公开(公告)日：2021-06-24

申请号：US17050494

申请日：2019-04-26

Applicant: Dow Global Technologies LLC ,  Rohm and Hass Company

Inventor： Bharat I. Chaudhary ,  Xindi Yu ,  Yichi Zhang ,  Peter C. Dreux

IPC: C08L23/08 ,  C08L43/04 ,  C08L51/06 ,  C08K3/016 ,  C08K5/00 ,  C08K5/3492

Abstract: The present disclosure provides a composition. The composition includes a silane functionalized polyolefin; a flame retardant; and a hindered amine light stabilizer (HALS) having a Mw greater than 5,000 Dalton. The present disclosure also provides a coated conductor. The coated conductor includes a conductor and a coating on the conductor, the coating including a composition. The coating composition includes a silane functionalized polyolefin; a flame retardant; and a hindered amine light stabilizer (HALS) having a Mw greater than 5,000 Dalton.

公开(公告)号：US10913872B2

公开(公告)日：2021-02-09

申请号：US16488771

申请日：2018-02-21

Applicant: Dow Global Technologies LLC

Inventor： Bharat I. Chaudhary

IPC: H01B3/02 ,  C09D123/08 ,  C09D7/63 ,  C09D123/20 ,  H01B3/30

Abstract: A peroxide-curable ethylene copolymer composition having (A) a crosslinkable ethylene/alpha-olefin copolymer, (B) an effective amount of triallyl phosphate (TAP), (C) an organic peroxide, and, optionally, (D) a supplemental polymer; wherein the (A) crosslinkable ethylene/alpha-olefin copolymer is made by copolymerizing ethylene and an olefin-functional comonomer in the presence of a molecular catalyst useful therefor. Also provided are a cured product made from the composition, methods of making and using same, and articles containing same.

公开(公告)号：US10563022B2

公开(公告)日：2020-02-18

申请号：US15570330

申请日：2016-04-12

Applicant: Dow Global Technologies LLC

Inventor： Bharat I. Chaudhary ,  Amy L. Waxman ,  Peter C. Dreux ,  Kurt A. Bolz, III

IPC: C08J3/20 ,  C08J3/24

Abstract: Scorch of a silane-functionalized polyolefin is minimized during melt mixing with a flame retardant through the use of a polydimethylsiloxane (PDMS) having a (1) number average molecular weight (Mn) greater than or equal to (≥) 4,000 grams per mole (g/mol), (2) viscosity of greater than or equal to (≥) 90 centipoise (cP), and (3) hydroxyl group content of less than or equal to (≤) 0.9 weight percent (wt %) based on the weight of the PDMS.

公开(公告)号：US10557023B2

公开(公告)日：2020-02-11

申请号：US15577869

申请日：2016-05-24

Applicant: Dow Global Technologies LLC

Inventor： Bharat I. Chaudhary

IPC: C08L23/06 ,  C08L23/12 ,  C08L23/16 ,  C08K5/14 ,  H01B3/44

Abstract: Compositions useful for the manufacture of cable insulation sheaths comprise, in weight percent based on the weight of the composition: (A) 85 to 99% low density polyethylene (LDPE) having a crystallinity of greater than 40%; (B) 1 to less than 14% propylene polymer having an upper melting point of greater than or equal to (≥) 130° C.; and (C) ≥0.5% peroxide.

公开(公告)号：US10533121B2

公开(公告)日：2020-01-14

申请号：US15520034

申请日：2014-10-22

Applicant: Dow Global Technologies LLC

Inventor： Kaustubh Gupte ,  Bharat I. Chaudhary ,  Domonique Downing ,  Nolan T. McDougal ,  Sreejit Nair

IPC: C09K5/10 ,  C11C3/02 ,  C11C1/00 ,  H01B3/20

Abstract: A fluid composition comprises a triglyceride, having at least one alpha-branched fatty acid residue, wherein each alpha-branched fatty acid residue comprises at least one saturated or mono-unsaturated alkyl chain having a total number of carbon atoms ranging from 12 to 20, and wherein the triglyceride has at least one of (a) a flash point of at least 185° C., (b) a fire point of at least 230° C., (c) a pour point of −25° C. or lower, or (d) a combination thereof. The fluid composition may be useful, for example, as a dielectric fluid and/or as a heat transfer fluid in transformers and other electrical device applications.

公开(公告)号：US20180305533A1

公开(公告)日：2018-10-25

申请号：US15770392

申请日：2016-10-13

Applicant: Dow Global Technologies LLC

Inventor： Bharat I. Chaudhary ,  Rennisha Wickham ,  Morgan M. Hughes ,  Juan C. Tuberquia

IPC: C08L23/08 ,  C08L23/06 ,  C08K5/14 ,  C08K3/34 ,  H01B3/30

CPC classification number: C08L23/0815 ,  C08K3/346 ,  C08K5/14 ,  C08L23/04 ,  C08L23/06 ,  C08L23/16 ,  C08L2203/206 ,  C08L2205/02 ,  C08L2207/066 ,  C08L2312/00 ,  H01B3/307

Abstract: Crosslinkable polymeric compositions comprising: (a) a polymer blend comprising: (1) 10 to 94 weight percent, based on the total weight of the crosslinkable polymeric composition, of an ethylene-based interpolymer having the following properties: (i) a density of 0.93 g/cm3 or less, (ii) a melt index (I2) at 190° C. of greater than 0.2 g/10 minutes, and (iii) a shear thinning ratio (V0.1/V100) at 190° C. and 10% strain of less than 8; and (2) 5 to 90 weight percent, based on the total weight of the crosslinkable polymeric composition, of a high-pressure polyethylene; and (b) 0 to less than 40 weight percent, based on the total weight of the crosslinkable polymeric composition, of a filler, where the ethylene-based interpolymer of component (a) is not prepared in a high-pressure reactor or process. Additionally, the polymer blend has the following properties: (i) a shear thinning ratio (V0.1/V100) at 190° C. and 10% strain of at least 5, (ii) a high-shear viscosity (V100) at 190 C and 10% strain of less than 1,300 Pa·s, (iii) a melt strength of at least 4 centiNewtons at 190° C., and (iv) a flexural modulus, 2% secant, of less than 25,000 psi. Such crosslinkable polymeric compositions may be employed as insulation layers in flexible power cables.

公开(公告)号：US10100172B2

公开(公告)日：2018-10-16

申请号：US14396777

申请日：2013-05-07

Applicant: Dow Global Technologies LLC

Inventor： Bharat I. Chaudhary ,  Jeffrey M. Cogen ,  Paul D. Ries

IPC: C08K5/1515 ,  C08K5/11 ,  C08K5/00 ,  H01B3/44 ,  C08K3/08 ,  H01B7/29

Abstract: Plasticizers comprising a succinate ester and an epoxidized natural oil and plasticized polymeric compositions comprising such plasticizers. Such plasticized polymeric compositions can be employed in forming various articles of manufacture, such as coated conductors.

公开(公告)号：US10096404B2

公开(公告)日：2018-10-09

申请号：US15021008

申请日：2014-09-09

Applicant: Dow Global Technologies LLC

Inventor： Paul J. Brigandi ,  Bharat I. Chaudhary ,  Jeffrey C. Munro ,  Gary R. Marchand

IPC: H01B13/00 ,  H01B19/02 ,  H01B3/44 ,  H01B1/24 ,  H01B9/00

Abstract: A power cable comprising: (A) a conductor, (B) an insulation layer, and (C) a semiconductor layer comprising in weight percent based on the weight of the semiconductor layer: (1) 49-98% of a crosslinked olefin block copolymer (OBC) having a density less than ( ) 1, and comprising in weight percent based on the weight of the OBC: (a) 35-80% soft segment that comprises 5-50 mole percent (mol %) of units derived from a monomer comprising 3 to 30 carbon atoms; and (b) 20-65% hard segment that comprises 0.2-3.5 mol % of units derived from a monomer comprising 3 to 30 carbon atoms; (2) 2-51% conductive filler, the insulation layer and semiconductor layer in contact with one another, is degassed by a process comprising the step of exposing the cable to a temperature of at least 80° C. for a period of time of at least 24 hours.