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21.发明申请公开(公告)号：US20200231712A1
公开(公告)日：2020-07-23
申请号：US16634914
申请日：2018-07-13
发明人： Otto J. Berbee , Stefan Hinrichs , Bharat I. Chaudhary , Teresa P. Karjala , John O. Osby , Jose Ortega
摘要： 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.
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公开(公告)号：US20200181374A1
公开(公告)日：2020-06-11
申请号：US16623858
申请日：2018-08-27
发明人： Bharat I. Chaudhary
摘要： A process of melt compounding a polyolefin formulation comprising a ethylenic-based (co)polymer, an antioxidant, and from 0.15 to 1.00 weight percent of an organic peroxide having a 1-hour half-life temperature of less than or equal to 155 degrees Celsius (° C.) and/or a 10-hour half-life temperature of less than or equal to 135° C. Also, intermediate compositions having a modified rheology and crosslinked polyolefin products made therefrom; methods of making and using same; and articles containing same.
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公开(公告)号：US20200047387A1
公开(公告)日：2020-02-13
申请号：US16344691
申请日：2017-10-13
发明人： Qian Gou , Mark A. Spalding , Bharat I. Chaudhary , Karl Seven
摘要： Lower discharge temperatures and improved flow rates are obtained for the processing of meltable, solid crosslinkable compositions comprising a polymer, e.g., polyethylene, and a peroxide, in a single barrel extruder by equipping the extruder with an energy transfer (ET) screw that comprises: (1) an ET section with a distance averaged ET section depth of 8.0% to 10% of the extruder barrel internal diameter, and (2) a metering section with a metering section depth of 6.0% to 8% of the extruder barrel internal diameter.
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公开(公告)号：US10472506B2
公开(公告)日：2019-11-12
申请号：US16069223
申请日：2017-01-31
摘要： A composition for use in jacketing or insulation materials that has from 42 to 54 percent by weight of a halogen-free flame retardant, from 26 to 46 percent by weight of an ethylene alkyl acrylate copolymer, such as ethylene ethyl acrylate, optionally from 0 to 15 percent by weight of an ethylene-based polymer, optionally from 0 to 12 percent by weight of a coupling agent, and optionally from 0 to 1 percent by weight of an antioxidant. A cable insulation layer, a cable protective outer jacket, a cable core sheath, and cable may include the jacketing material composition.
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公开(公告)号：US10308829B2
公开(公告)日：2019-06-04
申请号：US15028967
申请日：2014-11-10
发明人： Bharat I. Chaudhary
IPC分类号： C09D123/26 , C08K5/14 , H01B3/44 , C08F110/02
摘要： Crosslinkable polymeric compositions comprising a polyolefin having hydrolyzable silane groups, an organic peroxide, and optionally a silanol condensation catalyst. Such crosslinkable polymeric compositions are crosslinkable via a combination of peroxide crosslinking and moisture curing. Such crosslinkable polymeric compositions can be employed in the production of various articles of manufacture, such as coated conductors.
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公开(公告)号：US20180163039A1
公开(公告)日：2018-06-14
申请号：US15580362
申请日：2016-05-25
发明人： Bharat I. Chaudhary , Christopher R. Eddy , Sarat Munjal , Kalyan Sehanobish , Hayley Brown , John Osby , Jose Ortega
CPC分类号： C08L23/26 , C08F2/01 , C08F2500/11 , C08J3/24 , C08K5/14 , C08L23/0846 , H01B3/307 , C08F210/02 , C08F2/02 , C08F2500/09 , C08F2500/12 , C08F2500/17
摘要： An insulated wire or cable is made by a process comprising the steps of: (A) extruding onto a covered or uncovered metal conductor or optical fiber a composition having a DF measured at 130° C. (60 Hz, 2 kV) or 120° C. (60 Hz, 8 kV) or 100° C. (60 Hz, 8 kV) of
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公开(公告)号：US20180134882A1
公开(公告)日：2018-05-17
申请号：US15577869
申请日：2016-05-24
发明人： Bharat I. Chaudhary
摘要： 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.
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28.发明申请公开(公告)号：US20170349800A1
公开(公告)日：2017-12-07
申请号：US15520034
申请日：2014-10-22
摘要： 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.
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公开(公告)号：US20160289433A1
公开(公告)日：2016-10-06
申请号：US15035264
申请日：2014-11-12
CPC分类号： C08L23/06 , C08L2203/206 , C08L2205/03 , C08L2205/24 , C08L2207/062 , G02B6/4433 , G02B6/4486 , H01B3/441 , H01B7/2813 , C08L23/12 , C08L53/00
摘要： Polymeric compositions comprising a high-density polyethylene, a crystalline polypropylene, and an olefin block composite. Optical cable components fabricated from an extrudable polymeric composition of high-density polyethylene, a crystalline polypropylene, and an olefin block composite. Optionally, the polymeric composition can further comprise a nucleating agent. The polymeric composition may also contain one or more additives. The optical fiber cable components can be selected from buffer tubes, core tubes, and slotted core tubes, among others.
摘要翻译： 包含高密度聚乙烯，结晶聚丙烯和烯烃嵌段复合材料的聚合物组合物。 由高密度聚乙烯，结晶聚丙烯和烯烃嵌段复合材料的可挤出聚合物组合物制成的光缆部件。 任选地，聚合物组合物还可以包含成核剂。 聚合物组合物还可以含有一种或多种添加剂。 光纤电缆组件可以选自缓冲管，芯管和开槽芯管等。
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公开(公告)号：US20160145415A1
公开(公告)日：2016-05-26
申请号：US14783922
申请日：2014-05-12
发明人： Bharat I. Chaudhary
IPC分类号： C08K5/1535 , H01B3/44
CPC分类号： C08K5/1535 , C07D307/68 , H01B3/443 , C08L27/06
摘要： Plasticizers comprising a dialkyl 2,5-furandicarboxylate and plasticized polymeric compositions comprising such plasticizers. Such plasticized polymeric compositions can be employed in forming various articles of manufacture, such as coated conductors.
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