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1. 发明授权

US06537614B1 Cationically charged coating on hydrophobic polymer fibers with poly (vinyl alcohol) assist 有权
公开(公告)号：US06537614B1
公开(公告)日：2003-03-25
申请号：US09216087
申请日：1998-12-18
申请人： Ning Wei , Robert John Lyng , Monica Graciela Varriale
发明人： Ning Wei , Robert John Lyng , Monica Graciela Varriale
IPC分类号： B05D722
CPC分类号： D06M15/59 , B01D39/1623 , B01D2239/0428 , B01D2239/0492 , D06M15/333 , D06M15/55 , D06M15/61 , D06M23/10 , Y10T428/249921 , Y10T428/29 , Y10T428/2929 , Y10T428/2933 , Y10T428/2967
摘要： A hydrophobic polymer fiber having a cationically charged coating thereon, in which the coating includes a functionalized cationic polymer, such as an epichlorohydrin-functionalized polyamine or an epichlorohydrin-functionalized polyamido-amine, which has been crosslinked by heat. The present invention also provides a fibrous filter which includes hydrophobic polymer fibers having the foregoing cationically charged coating thereon. The present invention further provides a method of preparing a fibrous filter. The method involves providing a fibrous filter comprised of hydrophobic polymer fibers; treating the fibrous filter with an aqueous solution of a functionalized cationic polymer crosslinkable by heat under conditions sufficient to substantially coat the fibers with the functionalized cationic polymer, wherein the solution includes the functionalized cationic polymer, a poly(vinyl alcohol), a polar solvent for the poly(vinyl alcohol), and water; and treating the resulting coated fibrous filter with heat at a temperature and for a time sufficient to crosslink the functionalized cationic polymer present on the hydrophobic polymer fibers. The present invention additionally provides a method of preparing a fibrous filter. The method includes providing a fibrous filter comprised of hydrophobic polymer fibers; passing a solution of a functionalized cationic polymer crosslinkable by heat through the fibrous filter under conditions sufficient to substantially coat the fibers with the functionalized cationic polymer, wherein the solution includes the functionalized cationic polymer, a poly(vinyl alcohol), and water; and treating the resulting coated fibrous filter with heat at a temperature and for a time sufficient to crosslink the functionalized cationic polymer present on the hydrophobic polymer fibers.

2. 发明授权

US07258758B2 Strong high loft low density nonwoven webs and laminates thereof 有权
标题翻译：强大的高低密度非织造纤维网及其层压材料
公开(公告)号：US07258758B2
公开(公告)日：2007-08-21
申请号：US10749461
申请日：2003-12-31
申请人： Warren L. Collier, IV , Christopher Dale Fenwick , Chad Michael Freese , Kurtis Lee Brown , Susan Elaine Shawver , Terry Kramer Timmons , James Russell Fitts, Jr. , Monica Graciela Varriale , Alexander J. Neeb , Eric Scott Kepner
发明人： Warren L. Collier, IV , Christopher Dale Fenwick , Chad Michael Freese , Kurtis Lee Brown , Susan Elaine Shawver , Terry Kramer Timmons , James Russell Fitts, Jr. , Monica Graciela Varriale , Alexander J. Neeb , Eric Scott Kepner
IPC分类号： D04H3/16
CPC分类号： B32B5/022 , B32B5/02 , B32B5/26 , B32B27/12 , B32B37/0084 , B32B2038/0028 , B32B2307/51 , B32B2307/724 , B32B2307/7265 , B32B2555/02 , D04H1/50 , D04H3/018 , D04H3/14 , D04H3/16 , Y10T428/2481
摘要： High loft, low density nonwoven webs suitable for use in a variety of applications requiring strong fabric layers are produced by forming substantially continuous, spunbond, crimped, bicomponent fibers of crimpable, e.g., side by side or eccentric sheath/core (A/B) configuration which are unheated prior to collection. The fibers are then heated and cooled in the absence of impeding forces to achieve maximum crimp in the Z-direction and produce a web of lofted material of greater uniformity than attained with comparable material whose fibers are drawn by a heated process. The resultant nonwoven material can then be pattern bonded or laminated for additional strength without interfering with the desired loft of the low density nonwoven. The additionally strengthened nonwoven may then be further processed such as by lamination or the like to further increase its utility.
摘要翻译：通过形成可卷曲的例如并排或偏心的护套/芯（A / B）的基本上连续的，纺粘的，卷边的双组分纤维来生产适合用于需要强织物层的各种应用的高蓬松低密度非织造织物，在收集之前未加热的配置。然后在不存在阻力的情况下将纤维加热和冷却，以获得Z方向上的最大卷曲，并且产生比通过加热方法拉伸其纤维的类似材料获得更高均匀性的蓬松材料的网。然后可以将所得非织造材料图案粘合或层压以获得额外的强度，而不会干扰所需的低密度非织造布。然后可以进一步加工另外加强的非织造材料，例如通过层压等来进一步提高其效用。

3. 发明授权

US06673447B2 Cationically charged coating on hydrophobic polymer fibers with poly (vinyl alcohol) assist 有权
标题翻译：疏水性聚合物纤维与聚（乙烯醇）辅助的阳离子带电涂层
公开(公告)号：US06673447B2
公开(公告)日：2004-01-06
申请号：US10053068
申请日：2002-01-18
申请人： Ning Wei , Robert John Lyng , Monica Graciela Varriale
发明人： Ning Wei , Robert John Lyng , Monica Graciela Varriale
IPC分类号： D02G300
CPC分类号： D06M15/59 , B01D39/1623 , B01D2239/0428 , B01D2239/0492 , D06M15/333 , D06M15/55 , D06M15/61 , D06M23/10 , Y10T428/249921 , Y10T428/29 , Y10T428/2929 , Y10T428/2933 , Y10T428/2967
摘要： A hydrophobic polymer fiber having a cationically charged coating thereon, in which the coating includes a functionalized cationic polymer, such as an epichlorohydrin-functionalized polyamine or an epichlorohydrin-functionalized polyamido-amine, which has been crosslinked by heat. The present invention also provides a fibrous filter which includes hydrophobic polymer fibers having the foregoing cationically charged coating thereon. The present invention further provides a method of preparing a fibrous filter. The method involves providing a fibrous filter comprised of hydrophobic polymer fibers; treating the fibrous filter with an aqueous solution of a functionalized cationic polymer crosslinkable by heat under conditions sufficient to substantially coat the fibers with the functionalized cationic polymer, wherein the solution includes the functionalized cationic polymer, a poly(vinyl alcohol), a polar solvent for the poly(vinyl alcohol), and water; and treating the resulting coated fibrous filter with heat at a temperature and for a time sufficient to crosslink the functionalized cationic polymer present on the hydrophobic polymer fibers. The present invention additionally provides a method of preparing a fibrous filter. The method includes providing a fibrous filter comprised of hydrophobic polymer fibers; passing a solution of a functionalized cationic polymer crosslinkable by heat through the fibrous filter under conditions sufficient to substantially coat the fibers with the functionalized cationic polymer, wherein the solution includes the functionalized cationic polymer, a poly(vinyl alcohol), and water; and treating the resulting coated fibrous filter with heat at a temperature and for a time sufficient to crosslink the functionalized cationic polymer present on the hydrophobic polymer fibers.
摘要翻译：一种其上具有阳离子电荷涂层的疏水性聚合物纤维，其中涂层包括官能化的阳离子聚合物，例如经过热交联的表氯醇官能化的多胺或表氯醇官能化的聚酰胺胺。本发明还提供一种纤维过滤器，其包括其上具有上述阳离子电荷涂层的疏水性聚合物纤维。本发明还提供一种制备纤维过滤器的方法。该方法包括提供由疏水聚合物纤维组成的纤维过滤器; 在足以使所述官能化阳离子聚合物基本上涂覆所述纤维的条件下通过热可交联的官能化阳离子聚合物的水溶液处理所述纤维过滤器，其中所述溶液包括所述官能化阳离子聚合物，聚（乙烯醇），极性溶剂聚（乙烯醇）和水; 并在足以使存在于疏水性聚合物纤维上的官能化阳离子聚合物交联的温度和时间下用热处理所得到的涂覆的纤维过滤器。本发明另外提供了制备纤维过滤器的方法。该方法包括提供由疏水聚合物纤维组成的纤维过滤器; 使官能化阳离子聚合物的溶液通过纤维过滤器在足以基本上用官能化阳离子聚合物涂覆纤维的条件下进行交联，其中该溶液包括官能化阳离子聚合物，聚（乙烯醇）和水; 并在足以使存在于疏水性聚合物纤维上的官能化阳离子聚合物交联的温度和时间下用热处理所得到的涂覆的纤维过滤器。

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