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    COMPUESTOS DE NITROXIDO PARA MINIMIZAR CHAMUSCADO EN COMPOSICIONES RETICULABLES.
    25.
    发明专利
    COMPUESTOS DE NITROXIDO PARA MINIMIZAR CHAMUSCADO EN COMPOSICIONES RETICULABLES. 未知

    公开(公告)号：MX2009003831A

    公开(公告)日：2009-04-22

    申请号：MX2009003831

    申请日：2007-10-02

    Applicant: DOW GLOBAL TECHNOLOGIES INC

    Inventor： COGEN JEFFREY M ,  KLIER JOHN ,  CHAUDHARY BHARAT I ,  JOW JINDER ,  ESSEGHIR MOHAMED ,  GUERRA SUZANNE M ,  EATON ROBERT F

    IPC: C08K5/00 ,  C08K5/3435

    Abstract: El chamuscado es inhibido durante la reticulación de radicales libres de un polímero reticulable, por ejemplo, un EPDM, al incorporar en el polímero antes del procesamiento por fusión y reticulación, una cantidad inhibidora de chamuscado de un derivado, de preferencia un derivado de éter, éster o uretano, de un compuesto de TEMPO, por ejemplo, 4-hidroxi-tetrahidrocarbilpipe ridiri-1-oxilo. Los inhibidores de chamuscado de esta invención se desempeñan bien, si no es que mejor, que sus contrapartes de 4-hidroxi-tetrahidrocarbilpiperidin-1-oxilo en composiciones poliméricas similares y bajo condiciones similares en términos de inhibición de chamuscado y grado de reticulación último, pero exhiben menos volatilidad y menos migración dentro de la composición polimérica.

    ELECTRONIC DEVICE MODULE COMPRISING POLYOLEFIN COPOLYMER
    26.
    发明专利
    ELECTRONIC DEVICE MODULE COMPRISING POLYOLEFIN COPOLYMER 未知

    公开(公告)号：CA2663059A1

    公开(公告)日：2008-03-27

    申请号：CA2663059

    申请日：2007-09-19

    Applicant: DOW GLOBAL TECHNOLOGIES INC

    Inventor： MCGEE ROBERT L ,  ESSEGHIR MOHAMED ,  WU SHAOFU ,  BERNIUS MARK T ,  PATEL RAJEN M ,  NAUMOVITZ JOHN ,  MAZOR MICHAEL H

    IPC: H01L31/048 ,  C08L23/02 ,  C08L51/06 ,  H01B3/44

    Abstract: An electronic device module comprising: A. At least one electronic device , e.g., a solar cell, and B. A polymeric material in intimate contact with a t least one surface of the electronic device, the polymeric material compris ing (1) a polyolefin copolymer with at least one of (a) a density of less th an about 0.90 g/cc, (b) a 2% secant modulus of less than about 150 megaPasca l (mPa) as measured by ASTM D-882-02), (c) a melt point of less than about 9 5C, (d) an .alpha.-olefin content of at least about 15 and less than about 5 0 wt% based on the weight of the polymer, (e) a Tg of less than about -35C, and (f) a SCBDI of at least about 50, (2) optionally, free radical initiator , e.g., a peroxide or azo compound, or a photoinitiator, e.g., benzophenone, and (3) optionally, a co-agent. Typically, the polyolefin copolymer is an e thylene/.alpha.-olefin copolymer. Optionally, the polymeric material can fur ther comprise a vinyl silane and/or a scorch inhibitor, and the copolymer ca n remain uncrosslinked or be crosslinked.

    27.
    发明专利
    未知

    公开(公告)号：AT346103T

    公开(公告)日：2006-12-15

    申请号：AT04708225

    申请日：2004-02-04

    Applicant: DOW GLOBAL TECHNOLOGIES INC

    Inventor： WALIA PARVINDER S ,  PATEL RAJEN M ,  KLIER JOHN ,  WEAVER JOHN D ,  LADIKA MLADEN ,  ESSEGHIR MOHAMED ,  COGEN JEFFREY N

    IPC: C08F8/42 ,  C08F255/02 ,  D01F6/30

    Abstract: An improved process for crosslinking a polyolefin polymer is described. The process involves grafting a silane material onto the polyolefin based polymer in the presence of a free radical generating initiator material and then hydrolyzing the silane material to form crosslinks. By using an effective molar ratio of silane material to free radical of 40 or greater in the grafting reaction, premature crosslinking is controlled and the grafted polymer can be shaped first and then crosslinked. In another aspect of the invention, the crosslinking process is improved by adding a catalyst for the hydrolysis catalyst to the surface of a shaped article made from the grafted polymer. Grafted polymer and articles made from the grafted polymer, particularly fibers, are also disclosed.

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