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    HIGH MOLECULAR WEIGHT POLYAMIDES AND COPOLYAMIDES WITH UNIFORM RV AND LOW GEL CONTENT
    1.
    发明申请
    HIGH MOLECULAR WEIGHT POLYAMIDES AND COPOLYAMIDES WITH UNIFORM RV AND LOW GEL CONTENT 审中-公开
    具有均匀RV和低凝胶含量的高分子量聚酰胺和共聚酰胺

    公开(公告)号：WO2017095772A1

    公开(公告)日：2017-06-08

    申请号：PCT/US2016/063916

    申请日：2016-11-29

    Applicant: ASCEND PERFORMANCE MATERIALS OPERATIONS LLC

    Inventor： POLK, James, E. ,  SCHWIER, Chris, E. ,  SEN, Ashish ,  TRASK, Craig, A. ,  UZUNPINAR, Cihan ,  WANG, Chie-Hsiung ,  ZABCIK, J., Marty

    IPC: B29C47/00 ,  B29C47/62 ,  C08G69/00 ,  C08G69/14

    CPC classification number: B29C47/00 ,  B29B13/00 ,  B29C47/0011 ,  B29C47/008 ,  B29C47/0869 ,  B29C47/62 ,  B29C2791/006 ,  C08G69/04 ,  C08G69/06 ,  C08G69/08 ,  C08G69/28 ,  C08G69/30

    Abstract: A customizable polyamide polymer, in particular Nylon 66, Nylon 6, and copolyamides, having a high molecular weight, excellent color, and low gel content is disclosed. In particular, disclosed is a polymer having a relative viscosity greater than 50 as measured in a 90% strength formic acid solution; consistent viscosity with a standard deviation of less than 1; a gel content no greater than 50 ppm as measured by insolubles larger than 10 micron; an optical defect content of less than 2,000 parts per million (ppm) as measured by optical control system (OCS). The polymer can be made into monofilaments or a multifilament yarn. Also disclosed is a process of producing the polymer using in-line vacuum finishing technology in the absence of steam or other gases in the second, or post condensation, step of the polymer process.

    Abstract translation: 公开了一种可定制的聚酰胺聚合物，特别是尼龙66，尼龙6和共聚酰胺，其具有高分子量，优异的颜色和低凝胶含量。 具体而言，公开了在90％浓度的甲酸溶液中测量的相对粘度大于50的聚合物; 一致的粘度，标准偏差小于1; 通过大于10微米的不溶物测定的凝胶含量不大于50ppm; 由光学控制系统（OCS）测量的光学缺陷含量小于百万分之2,000（ppm）。 聚合物可以制成单丝或复丝。 还公开了一种在聚合物工艺的第二步骤或后冷凝步骤中不存在蒸汽或其他气体的情况下使用在线真空精整技术生产聚合物的方法。

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