Process of making high crimp bicomponent fibers
    1.
    发明授权
    Process of making high crimp bicomponent fibers 有权
    制造高压双组分纤维的工艺

    公开(公告)号:US08758660B2

    公开(公告)日:2014-06-24

    申请号:US12035350

    申请日:2008-02-21

    IPC分类号: D01D5/08 D01D5/32 D01F8/14

    摘要: A bicomponent fiber wherein (a) the first component comprises from about 90 to 100 wt. % poly(trimethylene terephthalate) and (b) the second component is a polymer composition comprising (i) poly(trimethylene terephthalate) and (ii) polymer containing polyalkylene ether repeating units. Yarn, fiber, fabrics and carpets comprising the bicomponent fiber, as well as the process of making the bicomponent fiber, yarn, fabric, and carpet.

    摘要翻译: 一种双组分纤维,其中(a)第一组分包含约90至100重量% %聚(对苯二甲酸丙二醇酯)和(b)第二组分是包含(i)聚(对苯二甲酸丙二醇酯)和(ii)含聚亚烷基醚重复单元的聚合物的聚合物组合物。 包含双组分纤维的纱线,纤维,织物和地毯以及制造双组分纤维,纱线,织物和地毯的方法。

    Branched poly(trimethylene ether) polyols
    6.
    发明授权
    Branched poly(trimethylene ether) polyols 有权
    支链聚(三亚甲基醚)多元醇

    公开(公告)号:US08946485B2

    公开(公告)日:2015-02-03

    申请号:US13220030

    申请日:2011-08-29

    IPC分类号: C07C43/178 C07C43/15

    摘要: Disclosed is branched poly(trimethylene ether) polyols prepared from the acid catalyzed polycondensation reaction of 1,3-propanediol, and at least one triol comonomer selected from 1,1,1-tris(hydroxymethyl)ethane and 1,1,1-tris(hydroxymethyl)propane. Also disclosed is a branched poly(trimethylene ether) polyol with an equivalent hydroxyl functionality of about 2.1 to about 3.2 and a Mn of about 200 to about 6000. The polyols are useful in the preparation of polyurethane rigid and flexible foams.

    摘要翻译: 公开了由1,3-丙二醇的酸催化缩聚反应制备的支链聚(三亚甲基醚)多元醇和至少一种选自1,1,1-三(羟甲基)乙烷和1,1,1-三 (羟甲基)丙烷。 还公开了具有约2.1至约3.2的当量羟基官能度和约200至约6000的Mn的支化聚(三亚甲基醚)多元醇。多元醇可用于制备聚氨酯刚性和柔性泡沫体。