公开(公告)号：CA2969004A1

公开(公告)日：2016-06-02

申请号：CA2969004

申请日：2014-11-28

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： SUN GANGWEI ,  ESSEGHIR MOHAMED ,  KMIEC CHESTER J

IPC: C08K5/16 ,  C08J9/00 ,  C08L23/06 ,  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 agentsresults 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：CA2969002A1

公开(公告)日：2016-06-02

申请号：CA2969002

申请日：2014-11-28

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： SUN GANGWEI ,  ESSEGHIR MOHAMED ,  KMIEC CHESTER J ,  YING LEI ,  SUN YABIN ,  XU XIAN MIN

IPC: C08L23/06 ,  C08J9/00 ,  H01B3/30

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：CA2933637A1

公开(公告)日：2015-06-25

申请号：CA2933637

申请日：2014-11-12

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： SEVEN KARL M ,  KMIEC CHESTER J ,  CHAUDHARY BHARAT I ,  ESSEGHIR MOHAMED

IPC: C08L23/06 ,  G02B6/44 ,  H01B3/44 ,  H01B7/28

Abstract: 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.

公开(公告)号：CA2897946A1

公开(公告)日：2014-07-31

申请号：CA2897946

申请日：2013-12-17

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： FLORY ANNY L ,  ESSEGHIR MOHAMED

IPC: C09K5/10

Abstract: Liquid cooling mediums employed to immersion-cool electronic hardware devices. Such liquid cooling mediums comprise saturated medium chain triglycerides having fatty acid carbon chain lengths in the range of from 6 to 12 carbon atoms. Such liquid cooling mediums can be employed to immersion-cool such devices as computer servers, server motherboards, and microprocessors.

公开(公告)号：MX2013013273A

公开(公告)日：2014-07-09

申请号：MX2013013273

申请日：2012-04-13

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： ESSEGHIR MOHAMED ,  HARRIS WILLIAM J

IPC: C08G59/42 ,  C08G59/68 ,  C08L63/00 ,  H01B3/40

Abstract: Una composición de formulación de resina epóxica curable útil como aislamiento para un aparato eléctrico incluyendo (a) al menos una resina epóxica líquida; (b) al menos un endurecedor de anhídrido cíclico líquido; (c) al menos un relleno térmicamente conductor y eléctricamente aislante, en donde el relleno incluye un relleno tratado con epoxi-silano; y (d) al menos un catalizador de curado sin hidrógenos de amina; en donde la composición de formulación de resina epóxica sobre curado proporciona un producto curado con un balance requerido de propiedades eléctricas, mecánicas y térmicas, tales como Tg, fuerza de tensión, fuerza dieléctrica, y resistividad de volumen, de manera que el producto curado puede ser usado en aplicaciones operadas a una temperatura mayor que o igual a 120°C.

公开(公告)号：MX2013013272A

公开(公告)日：2014-07-09

申请号：MX2013013272

申请日：2012-04-13

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： ESSEGHIR MOHAMED ,  HARRIS WILLIAM J

IPC: C08G59/24 ,  C08G59/22 ,  C08G59/42 ,  C08L63/00 ,  H01B3/40

Abstract: Una composición de formulación de resina epóxica curable útil como aislamiento para un aparato eléctrico incluyendo (a) al menos un dióxido de divinilareno; (b) al menos una resina epóxica diferente del dióxido de divinilareno de componente (a); (c) al menos un endurecedor de anhídrido; (d) al menos un relleno; y (e) al menos un catalizador de curado; en donde la composición de formulación de resina epóxica sobre curado proporciona un producto curado con un balance requerido de propiedades eléctricas, mecánicas y térmicas, tales como Tg, fuerza de tensión, fuerza dieléctrica y resistividad de volumen, de manera que el producto curado puede ser usado en aplicaciones operadas a una temperatura mayor que o igual a 100°C.

公开(公告)号：CA2858840A1

公开(公告)日：2013-06-27

申请号：CA2858840

申请日：2012-12-04

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  ROHM & HAAS ELECT MAT

Inventor： FU LIN ,  ESSEGHIR MOHAMED ,  HARRIS WILLIAM J ,  BAYES MARTIN W ,  EATON ROBERT F ,  KMIEC CHESTER J ,  NEESE BRET P

IPC: C08L63/00 ,  C08L53/00 ,  C08L71/02

Abstract: A process for preparing a cured composite material useful for radio frequency filter applications comprising the steps of: (a) providing a curable thermoset epoxy resin composition comprising (i) at least one epoxy resin; (ii) at least one toughening agent; (iii) at least one hardener; and (iv) at least one filler; (b) curing the curable thermoset epoxy resin composition of step (a) to form a cured composite; wherein the curable thermoset epoxy resin composition upon curing provides a cured composite product with a balance of properties comprising Tg, coefficient of thermal expansion, tensile strength, thermal conductivity; and having a density of less than 2.7 g/cc; and (c) coating at least a portion of the surface of the cured composite of step (b) with an electrically conductive metal layer to form a metalized coating on at least a portion of the surface of the cured composite. The cured composite material may be useful as a radio frequency cavity filter body housing for radio frequency filter applications.

公开(公告)号：CA2835658A1

公开(公告)日：2012-11-22

申请号：CA2835658

申请日：2012-04-13

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： ESSEGHIR MOHAMED ,  HARRIS WILLIAM J

IPC: C08G59/42 ,  C08G59/68 ,  C08L63/00 ,  H01B3/40

Abstract: A curable epoxy resin formulation composition useful as insulation for an electrical apparatus including (a) at least one liquid epoxy resin; (b) at least one liquid cyclic anhydride hardener; (c) at least one thermally conducting and electrically insulating filler, wherein the filler includes an epoxy-silane treated filler; and (d) at least one cure catalyst with no amine hydrogens; wherein the epoxy resin formulation composition upon curing provides a cured product with a requisite balance of electrical, mechanical, and thermal properties such as Tg, tensile strength, dielectric strength, and volume resistivity such that the cured product can be used in applications operated at a temperature of greater than or equal to 120 °C.

公开(公告)号：CA2774766A1

公开(公告)日：2011-03-31

申请号：CA2774766

申请日：2010-09-08

Applicant: DOW GLOBAL TECHNOLOGIES LLC ,  UNION CARBIDE CHEM PLASTIC

Inventor： ESSEGHIR MOHAMED ,  COGEN JEFFREY M

IPC: C08L23/08 ,  C08L23/16 ,  C08L75/04 ,  C08L83/04

Abstract: A molded or extruded article, e.g., an electrical part or shielded cable, comprises at least one insulation layer and at least one semiconductive layer, the semiconductive layer thick and comprising in weight percent: A. 1 to 30 wt% of conductive filler; B. 10 to 90 wt% of a non-olefin elastomer; C. 10 to 90 wt% of an olefin elastomer; and D. Optionally, 0.5 to 2.5 wt% of peroxide. Carbon black and/or metal particulates or powder typically comprise the filler, silicone or urethane rubber the non-olefin elastomer, and EPR or EPDM the olefin elastomer.

公开(公告)号：MX393685B

公开(公告)日：2025-03-24

申请号：MX2017007672

申请日：2017-06-12

Applicant: DOW GLOBAL TECHNOLOGIES LLC

Inventor： LEE CHANG DONG ,  DOOLEY JOSEPH ,  ESSEGHIR MOHAMED ,  HUANG WENYI

IPC: G02B6/44 ,  H01B13/14

Abstract: La presente invención se refiere a cables de fibra óptica que comprenden al menos un medio de transmisión de fibra óptica y al menos un componente protector polimérico elongado que rodea al menos una porción del medio de transmisión de fibra óptica. El componente protector polimérico elongado comprende un material de matriz polimérica y una pluralidad de microcapilares que contienen un material microcapilar polimérico, donde el material de matriz polimérica tiene un módulo de flexión superior que el material microcapilar polimérico. También se describen troqueles y métodos para elaborar tales cables de fibra óptica y componentes protectores.