Soil-repellent monofilament for paper machine wire-cloths, production
thereof and use thereof
    1.
    发明授权
    Soil-repellent monofilament for paper machine wire-cloths, production thereof and use thereof 失效
    用于纸机丝布的防污单丝,其制造及其用途

    公开(公告)号:US5514472A

    公开(公告)日:1996-05-07

    申请号:US513530

    申请日:1995-08-10

    摘要: The dirt-repellent monofilament with a toughness of at least 36 cN/tex and an extension of under 44% has a soiling index A1>2 after five soiling and cleaning cycles. To manufacture the dirt-repellent monofilaments, a copolymer with a melting point of 255.degree. to 275.degree. C. and consisting of alkenes and perfluoroalkenes is added to a polymer melt of polythylene terephthalate before extrusion. The dirt-repellent monofilament is advantageously used in the manufacture of cleaning filters for the dry section of a paper machine, i.e. paper machine fabric filters. It may also be used to produce fabrics for general use as technical fabrics which have to be cleaned in difficult conditions.

    摘要翻译: 韧性为36cN / tex,延伸率为44%以下的防污单丝在五次污染和清洗循环后具有污染指数A1> 2。 为了制造防污单丝,在挤出之前,将聚烯烃聚合物熔体加入熔点为255〜275℃,由烯烃和全氟烯烃组成的共聚物。 防污单丝有利地用于制造用于造纸机的干燥部分的清洁过滤器,即造纸机织物过滤器。 它也可用于生产一般用途的织物作为必须在困难条件下进行清洁的技术织物。

    Soil-repellent monofilament for paper machine wire-cloths, production
thereof and use thereof
    2.
    发明授权
    Soil-repellent monofilament for paper machine wire-cloths, production thereof and use thereof 失效
    用于纸机丝布的防污单丝,其制造及其用途

    公开(公告)号:US5472780A

    公开(公告)日:1995-12-05

    申请号:US240664

    申请日:1994-04-29

    摘要: The soil-repellent monofilament for paper machine wire-cloths consists of at least 85% by weight of polyethylene terephthalate having a viscosity index (V.I.) of at least 96 dl/g and an added copolymer prepared from alkenes and perfluoroalkenes having a melting point from 255.degree. to 275.degree. C. To make the soil-repellent monofilament 1.5 to 5% by weight of tetrafluoroethylene is included by addition to the polymer melt of polyethylene terephthalate prior to extrusion. The soil-repellent monofilament produced by this method has a soiling index of

    摘要翻译: PCT No.PCT / CH93 / 00206 Sec。 371日期1994年04月29日 102(e)日期1994年4月29日PCT提交1990年8月17日PCT公布。 公开号WO94 / 05835 日期:1994年3月17日。造纸机线布的防污单丝由至少85重量%的粘度指数(VI)至少为96dl / g的聚对苯二甲酸乙二醇酯和由烯烃制备的添加共聚物 和熔点为255-275℃的全氟烯烃。为了使挤出之前的聚对苯二甲酸乙二醇酯的聚合物熔体加入到疏水性单丝1.5至5重量%的四氟乙烯中。 通过该方法生产的防污单丝在5次污染和清洁循环后具有<2的污染指数。