Process for the processing of polymer mixtures into filaments
    45.
    发明授权
    Process for the processing of polymer mixtures into filaments 失效
    将聚合物混合物加工成细丝的方法

    公开(公告)号:US5993712A

    公开(公告)日:1999-11-30

    申请号:US123769

    申请日:1998-07-28

    CPC分类号: D01F6/92 D01F6/90

    摘要: The invention concerns a method of processing polymer blends based on polyester or polyamide with a draw-off speed of .gtoreq.1500 m/min to produce filaments with an elongation at break of .ltoreq.180%, where a second amorphous polymer is added to the polyester or polyamide in the amount of 0.05 to 5 wt % and the polymer is a copolymer composed of at least two of the following monomer units:0 to 90 wt % A, wherein A is a monomer of formula CH.sub.2 .dbd.C(R)--COOR.sup.1, wherein R is --H or --CH.sub.3 and R.sup.1 is straight or branched chain C.sub.1 -C.sub.10 alkyl or cyclohexyl.0 to 40 wt % B, wherein B is a monomer of maleic acid or maleic anhydride, and5 to 85 wt % C, wherein C is a monomer of styrene or methyl substituted styrene such that (wt % A+wt % B+wt % C)=100, and these filaments are processed by a drawing process or a stretch texturing process at high speeds. Preferably R.sup.1 is methyl, ethyl, n-propyl, n-butyl, iso-butyl, 2-ethyl-butyl, 2-ethyl hexyl, n-hexyl, n-heptyl, or cyclohexyl. Preferably, C is styrene, .alpha.-methyl styrene, 3-methyl styrene, or 4-methyl styrene. Most preferably C is styrene.

    摘要翻译: 本发明涉及一种以> / = 1500m / min的拉脱速度处理基于聚酯或聚酰胺的聚合物共混物的方法,以产生断裂伸长率为

    Monofilaments extruded from compartibilized polymer blends containing
polyphenylenesulfide and fabrics thereof
    49.
    发明授权
    Monofilaments extruded from compartibilized polymer blends containing polyphenylenesulfide and fabrics thereof 失效
    从含有聚苯硫醚的混合聚合物共混物和其织物中挤出的单丝

    公开(公告)号:US5759925A

    公开(公告)日:1998-06-02

    申请号:US840940

    申请日:1997-04-21

    摘要: An extruded monofilament is formed from a compatibilized blend of polyphenylene sulfide and a polyamide resin. The blend is compatibilized by the addition of a compatibilizing resin selected from the group consisting of chemically modified and functionalized polyolefins. Preferably, from about 25 to about 99 parts by weight of a polyphenylene sulfide resin and from about 75 to 1 parts by weight of at least one polyamide resin, together with from about 0.1 to 10 parts by weight of a compatibilizer are blended and extruded to form the monofilament. The resultant monofilament exhibits improved physical properties as compared to unblended polyphenylene sulfide resins (PPS), as well as uncompatibilized blends of PPS with other materials. The monofilaments prepared from these compatibilized blends are useful as components of industrial fabrics, particularly fabrics such as are used as belts on paper forming machines. The polymer blend and a process for the manufacture of the monofilaments are also provided.

    摘要翻译: 挤出的单丝由聚苯硫醚和聚酰胺树脂的相容化共混物形成。 通过加入选自化学改性和官能化的聚烯烃的增容树脂,使共混物相容。 优选地,将约25至约99重量份的聚苯硫醚树脂和约75至1重量份的至少一种聚酰胺树脂以及约0.1至10重量份的增容剂混合并挤出至 形成单丝。 与未掺合的聚苯硫醚树脂(PPS)相比,所得单丝显示出改善的物理性能,以及PPS与其它材料的未相容混合物。 由这些相容的共混物制备的单丝可用作工业织物的组分,特别是诸如在造纸机上用作带的织物。 还提供了聚合物共混物和制造单丝的方法。