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    Thermoplastic, semiconductive compositions
    24.
    发明授权
    Thermoplastic, semiconductive compositions 有权
    热塑性，半导体组成

    公开(公告)号：US09595365B2

    公开(公告)日：2017-03-14

    申请号：US14374112

    申请日：2013-01-29

    Applicant: Dow Global Technologies LLC

    Inventor： Mohamed Esseghir ,  Jeffrey M. Cogen ,  Saurav S. Sengupta ,  Neil W. Dunchus

    IPC: H01B1/24 ,  C08L101/10

    CPC classification number: H01B1/24 ,  C08L101/10

    Abstract: Crosslinkable, semiconductive, peroxide-free thermoplastic compositions having a stable volume resistivity of less than 1000 ohm-cm comprise, based on the weight of the composition: A. 60-90 wt % silane-functionalized polyethylene; B. 0.5-20 wt % organopolysiloxane containing two or more functional end groups; C. 10-20 wt % high conductivity carbon black, e.g., a carbon black having an average particle size of 50 nm or less, a surface area (BET) of 700-1250 m2/g, and an oil absorption (DBP) of 300-500 ml/100 g; and D. 0.05-0.2 wt % crosslinking catalyst.

    Abstract translation: 基于组合物的重量，具有小于1000欧姆 - 厘米的稳定体积电阻率的可交联的，半导电的，无过氧化物的热塑性组合物包括：A.60-90重量％的硅烷官能化聚乙烯; B.含有两个或更多个官能端基的0.5-20wt％有机聚硅氧烷; C.10-20重量％的高导电率炭黑，例如平均粒度为50nm以下的炭黑，700-1250m 2 / g的表面积（BET）和70-1250m 2 / g的吸油量（DBP） 300-500ml / 100g; 和D. 0.05-0.2重量％的交联催化剂。

    CROSSLINKABLE POLYETHYLENE COMPOUNDS AND METHODS FOR MAKING THEM
    26.
    发明申请
    CROSSLINKABLE POLYETHYLENE COMPOUNDS AND METHODS FOR MAKING THEM 有权

    公开(公告)号：US20240376275A1

    公开(公告)日：2024-11-14

    申请号：US18555954

    申请日：2022-07-06

    Applicant: Dow Global Technologies LLC

    Inventor： Mohamed Esseghir ,  Neil W. Dunchus ,  Qian Gou ,  Saurav S. Sengupta ,  Jeffrey M. Cogen

    IPC: C08J3/20 ,  C08J3/12 ,  C08J3/205 ,  C08J3/24 ,  C08K5/00 ,  C08K5/14

    Abstract: Provided are high temperature, low scorch, including no scorch, which is defined herein, methods of making crosslinkable compound compositions, the method comprising melt compounding a primary stream at a temperature of from 120.0° to 150.0° C., wherein the primary stream comprises one or more thermoplastic polyolefins and one or more antioxidants, but lacks curative additives selected from the group consisting of: peroxides and crosslinking coagents; and injecting into the compounded melt a combination of curative additives comprising one or more organic peroxides and one or more crosslinking coagents, and homogeneously mixing the one or more thermoplastic polyolefins, one or more antioxidants, one or more organic peroxides, and one or more crosslinking coagents by melt compounding them together. Also provided are methods of making crosslinked compound compositions and manufactured articles.

    METHOD OF MAKING A HOMOGENEOUS MIXTURE OF POLYVINYL CHLORIDE SOLIDS AND ADDITIVE
    29.
    发明申请
    METHOD OF MAKING A HOMOGENEOUS MIXTURE OF POLYVINYL CHLORIDE SOLIDS AND ADDITIVE 有权

    公开(公告)号：US20220298309A1

    公开(公告)日：2022-09-22

    申请号：US17635202

    申请日：2020-08-26

    Applicant: Dow Global Technologies LLC

    Inventor： Bharat I. Chaudhary ,  Saurav S. Sengupta

    IPC: C08J3/20 ,  C08K5/098 ,  C08K5/12 ,  C08K5/58 ,  C08K5/00 ,  B29B7/08 ,  B29B7/90

    Abstract: A mechanical agitation-free method of making a homogeneous mixture of polyvinyl chloride solids and at least one liquid additive and/or particulate solid additive without mechanically-agitating or melting the polyvinyl chloride solids during the making. The method comprises applying acoustic energy at a frequency of from 20 to 100 hertz to a heterogeneous mixture comprising the polyvinyl chloride solids and the liquid additive and/or particulate solid additive for a period of time sufficient to substantially intermix the polyvinyl chloride solids and the liquid additive and/or particulate solid additive, while maintaining temperature of the heterogeneous mixture above the freezing point of the liquid additive, below the melting point of the particulate solid additive, and below the melting temperature of the polyvinyl chloride solids, thereby making the homogeneous mixture without mechanically-agitating or melting the polyvinyl chloride solids.

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