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    Technique for incorporating a liquid additive into a nonwoven web
    3.
    发明申请
    Technique for incorporating a liquid additive into a nonwoven web 有权
    将液体添加剂掺入非织造纤维网中的技术

    公开(公告)号：US20070141941A1

    公开(公告)日：2007-06-21

    申请号：US11304988

    申请日：2005-12-15

    申请人： Mary DeLucia ,  Braulio Polanco ,  Peter Kobylivker ,  Ali Yahiaoui ,  Tamara Mace ,  Stephen Baratian ,  Steven Stopper ,  Charles Edmundson

    发明人： Mary DeLucia ,  Braulio Polanco ,  Peter Kobylivker ,  Ali Yahiaoui ,  Tamara Mace ,  Stephen Baratian ,  Steven Stopper ,  Charles Edmundson

    IPC分类号： B32B5/26

    CPC分类号： A61L15/20 ,  A61L15/18 ,  A61L15/26 ,  D01F1/10 ,  D01F6/46 ,  Y10T442/659 ,  Y10T442/681 ,  Y10T442/696 ,  Y10T442/699 ,  C08L83/04

    摘要： A technique for incorporating a liquid additive into a nonwoven web is disclosed. Specifically, the liquid additive is loaded into filler particles to form a “dry liquid concentrate”, i.e., pulverulent granular solid or powder loaded with the liquid additive. The incorporation of the liquid additive into dry liquid concentrates provides a variety of benefits. For example, prior to extrusion, the dry liquid concentrates generally retain the properties of filler particles from which they are formed as the liquid remains isolated. In this manner, a higher level of the liquid additive may be compounded with a melt-extrudable base composition without adversely affecting the extrusion process. Only upon extrusion of the composition will a significant portion of the liquid additive be released to provide the desired properties to the resulting nonwoven web.

    摘要翻译： 公开了一种将液体添加剂掺入非织造纤维网中的技术。 具体地说，将液体添加剂装载到填料颗粒中以形成“干液浓缩物”，即装载液体添加剂的粉状颗粒状固体或粉末。 将液体添加剂掺入干燥液体浓缩物中提供了各种益处。 例如，在挤出之前，干燥液体浓缩物通常保留当液体保持分离时从其形成的填料颗粒的性质。 以这种方式，可以将较高水平的液体添加剂与可熔融挤出的基础组合物混合而不会对挤出过程产生不利影响。 只有在挤出组合物时，大部分液体添加剂才能被释放，从而为所得非织造织物提供所需的性能。

    Nonwoven web with improved barrier properties
    5.
    发明授权
    Nonwoven web with improved barrier properties 失效
    具有改进的阻隔性能的无纺网

    公开(公告)号：US5213881A

    公开(公告)日：1993-05-25

    申请号：US799929

    申请日：1991-11-26

    申请人： Terry K. Timmons ,  Peter Kobylivker ,  Lin-Sun Woon

    发明人： Terry K. Timmons ,  Peter Kobylivker ,  Lin-Sun Woon

    IPC分类号： D04H13/00

    CPC分类号： D04H1/56 ,  D04H1/559 ,  Y10S428/903 ,  Y10T442/626 ,  Y10T442/68

    摘要： There is disclosed a nonwoven web for use as a barrier layer in an SMS fabric laminate. The web is formed at commercially acceptable polymer melt throughputs (greater than 3 PIH) by using a reactor granule polyolefin, preferably polypropylene, that has been modified by the addition of peroxide in amounts ranging from up to 3000 ppm to reduce the molecular weight distribution from an initial molecular weight distribution of from 4.0 to 4.5 Mw/Mn to a range of from 2.2 to 3.5 Mw/Mn. Also the addition of peroxide increases the melt flow rate (lowers viscosity) to a range between 800 up to 5000 gms/10 min at 230.degree. C. The resulting web has an average fiber size of from 1 to 3 microns and pore sizes distributed predominantly in the range from 7 to 12 microns, with a lesser amount of pores from 12 to 25 microns, with virtually no pores greater than 25 microns, and with the peak of the pore size distribution less than 10 microns.

    摘要翻译： 公开了用作SMS织物层压体中的阻挡层的非织造纤维网。 通过使用反应器颗粒聚烯烃（优选聚丙烯），以商业上可接受的聚合物熔体通过量（大于3PIH）形成所述网，所述反应器颗粒聚烯烃优选为聚丙烯，所述反应器颗粒聚烯烃优选为聚丙烯，其通过加入量为至多3000ppm的过氧化物而被改性， 4.0至4.5Mw / Mn的初始分子量分布范围为2.2-3.5Mw / Mn。 此外，过氧化物的加入使熔体流动速率（降低粘度）在230℃下在800至5000gms / 10min之间的范围内。所得到的纤维网的平均纤维尺寸为1至3微米，孔径主要分布 在7至12微米的范围内，具有较少量的12至25微米的孔，实际上没有孔大于25微米，孔径分布的峰值小于10微米。

    Nonwoven web laminates with improved barrier properties
    6.
    发明授权
    Nonwoven web laminates with improved barrier properties 失效
    具有改进的阻隔性能的无纺布层压板

    公开(公告)号：US5464688A

    公开(公告)日：1995-11-07

    申请号：US296822

    申请日：1994-08-26

    申请人： Terry K. Timmons ,  Peter Kobylivker ,  Lin-Sun Woon ,  Laura E. Keck ,  Jerald T. Jascomb

    发明人： Terry K. Timmons ,  Peter Kobylivker ,  Lin-Sun Woon ,  Laura E. Keck ,  Jerald T. Jascomb

    IPC分类号： D04H13/00 ,  B32B5/06

    CPC分类号： D04H3/14 ,  D04H1/559 ,  D04H1/56 ,  Y10S428/903 ,  Y10T428/249953 ,  Y10T442/659 ,  Y10T442/66

    摘要： There is disclosed a nonwoven web for use as a barrier layer in an SMS fabric laminate. The web is formed at commercially acceptable polymer melt throughputs (greater than 3 PIH) by using a reactor granule polyolefin, preferably polypropylene, that has been modified by the addition of peroxide in amounts ranging from up to 3000 ppm to reduce the molecular weight distribution from an initial molecular weight distribution of from 4.0 to 4.5 Mw/Mn to a range of from 2.2 to 3.5 Mw/Mn. Also the addition of peroxide increases the melt flow rate (lowers viscosity) to a range between 800 up to 5000 gms/10 min at 230.degree. C. The resulting web has an average fiber size of from 1 to 3 microns and pore sizes distributed predominantly in the range from 7 to 12 microns, with a lesser amount of pores from 12 to 25 microns, with virtually no pores greater than 25 microns, and with the peak of the pore size distribution less than 10 microns.

    摘要翻译： 公开了用作SMS织物层压体中的阻挡层的非织造纤维网。 通过使用反应器颗粒聚烯烃（优选聚丙烯），以商业上可接受的聚合物熔体通过量（大于3PIH）形成所述网，所述反应器颗粒聚烯烃优选为聚丙烯，所述反应器颗粒聚烯烃优选为聚丙烯，其通过加入量为至多3000ppm的过氧化物而被改性， 4.0至4.5Mw / Mn的初始分子量分布范围为2.2-3.5Mw / Mn。 此外，过氧化物的加入使熔体流动速率（降低粘度）在230℃下在800至5000gms / 10min之间的范围内。所得到的纤维网的平均纤维尺寸为1至3微米，孔径主要分布 在7至12微米的范围内，具有较少量的12至25微米的孔，实际上没有孔大于25微米，孔径分布的峰值小于10微米。

    Method of making nonwoven web with improved barrier properties
    7.
    发明授权
    Method of making nonwoven web with improved barrier properties 失效
    制造具有改善的阻隔性能的非织造纤维网的方法

    公开(公告)号：US5271883A

    公开(公告)日：1993-12-21

    申请号：US976774

    申请日：1992-11-16

    申请人： Terry K. Timmons ,  Peter Kobylivker ,  Lin-Sun Woon

    发明人： Terry K. Timmons ,  Peter Kobylivker ,  Lin-Sun Woon

    IPC分类号： D04H13/00 ,  D04H3/16

    CPC分类号： D04H1/56 ,  D04H1/4291 ,  D04H1/544 ,  D04H1/559

    摘要： There is disclosed a nonwoven web for use as a barrier layer in an SMS fabric laminate. The web is formed at commercially acceptable polymer melt throughputs (greater than 3 PIH) by using a reactor granule polyolefin, preferably polypropylene, that has been modified by the addition of peroxide in amounts ranging from up to 3000 ppm to reduce the molecular weight distribution from an initial molecular weight distribution of from 4.0 to 4.5 Mw/Mn to a range of from 2.2 to 3.5 Mw/Mn. Also the addition of peroxide increases the melt flow rate (lowers viscosity) to a range between 800 up to 5000 gms/10 min at 230.degree. C. The resulting web has an average fiber size of from 1 to 3 microns and pore sizes distributed predominantly in the range from 7 to 12 microns, with a lesser amount of pores from 12 to 25 microns, with virtually no pores greater than 25 microns, and with the peak of the pore size distribution less than 10 microns.

    摘要翻译： 公开了用作SMS织物层压体中的阻挡层的非织造纤维网。 通过使用反应器颗粒聚烯烃（优选聚丙烯），以商业上可接受的聚合物熔体通过量（大于3PIH）形成所述网，所述反应器颗粒聚烯烃优选为聚丙烯，所述反应器颗粒聚烯烃优选为聚丙烯，其通过加入量为至多3000ppm的过氧化物而被改性， 4.0至4.5Mw / Mn的初始分子量分布范围为2.2-3.5Mw / Mn。 此外，过氧化物的加入使熔体流动速率（降低粘度）在230℃下在800至5000gms / 10min之间的范围内。所得到的纤维网的平均纤维尺寸为1至3微米，孔径主要分布 在7至12微米的范围内，具有较少量的12至25微米的孔，实际上没有孔大于25微米，孔径分布的峰值小于10微米。