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1. 发明授权

US06365088B1 Electret treatment of high loft and low density nonwoven webs 有权
标题翻译：高阁高低密度非织造网的驻极体处理
公开(公告)号：US06365088B1
公开(公告)日：2002-04-02
申请号：US09339761
申请日：1999-06-24
申请人： Preston Biggers Knight , David Lewis Myers , John Joseph Lassig , David Grant Midkiff , Rick Leon Busby , Anthony Lee Lamanac , Leonid Anthony Turkevich
发明人： Preston Biggers Knight , David Lewis Myers , John Joseph Lassig , David Grant Midkiff , Rick Leon Busby , Anthony Lee Lamanac , Leonid Anthony Turkevich
IPC分类号： H05F300
CPC分类号： D06M10/025 , B01D39/1623 , D04H3/16
摘要： The process of forming an electret nonwoven web, the process including the steps of providing a nonwoven web, generating a DC corona discharge from an apparatus including an anode electrically configured as a parallel device, and subjecting the web to DC corona discharge to form an electret.
摘要翻译：形成驻极体非织造纤维网的方法，该方法包括以下步骤：提供非织造纤维网，从包括电性构造为平行装置的阳极的设备产生DC电晕放电，并对幅材进行DC电晕放电以形成驻极体。

2. 发明授权

US06573205B1 Stable electret polymeric articles 有权
公开(公告)号：US06573205B1
公开(公告)日：2003-06-03
申请号：US09492607
申请日：2000-01-27
申请人： David Lewis Myers , John Joseph Lassig , Leonid Anthony Turkevich , David Grant Midkiff
发明人： David Lewis Myers , John Joseph Lassig , Leonid Anthony Turkevich , David Grant Midkiff
IPC分类号： H01G702
CPC分类号： B01D39/083 , B01D39/1623 , B01D39/1692 , B01D2239/0208 , B01D2239/0216 , B01D2239/0435 , B01D2239/0622 , B01D2239/0627 , B01D2239/064 , B01D2239/065 , B01D2239/0663 , B01D2239/0677 , B01D2239/1291 , Y10S55/39 , Y10T428/24273 , Y10T428/249953 , Y10T428/25 , Y10T428/2927 , Y10T428/31855 , Y10T428/31909 , Y10T442/3325 , Y10T442/3854 , Y10T442/3976 , Y10T442/647 , Y10T442/659 , Y10T442/674 , Y10T442/68 , Y10T442/681 , Y10T442/689 , Y10T442/696
摘要： A porous polymeric sheet is provided having an electrostatic charge and comprising a zero-three composite of a polymeric matrix and a ferroelectric material dispersed therein. The polymeric component comprises a non-polar thermoplastic polymer, such as a polyolefin, and a second thermoplastic polymer having polar functional units, such as a telomer. The composite material is formed into a porous sheet and is electrically or corona poled to create an electret material which is well suited four use in various filtration, air-masking and dust wipe applications.

3. 发明授权

US06893990B2 Stable electret polymeric articles 有权
标题翻译：稳定的驻极体聚合物制品
公开(公告)号：US06893990B2
公开(公告)日：2005-05-17
申请号：US10409813
申请日：2003-04-08
申请人： David Lewis Myers , John Joseph Lassig , Leonid Anthony Turkevich , David Grant Midkiff
发明人： David Lewis Myers , John Joseph Lassig , Leonid Anthony Turkevich , David Grant Midkiff
IPC分类号： B01D39/08 , B01D39/16 , H01G7/02 , B03C3/28 , D01F6/04 , D04H1/00 , D04H3/00
CPC分类号： B01D39/083 , B01D39/1623 , B01D39/1692 , B01D2239/0208 , B01D2239/0216 , B01D2239/0435 , B01D2239/0622 , B01D2239/0627 , B01D2239/064 , B01D2239/065 , B01D2239/0663 , B01D2239/0677 , B01D2239/1291 , Y10S55/39 , Y10T428/24273 , Y10T428/249953 , Y10T428/25 , Y10T428/2927 , Y10T428/31855 , Y10T428/31909 , Y10T442/3325 , Y10T442/3854 , Y10T442/3976 , Y10T442/647 , Y10T442/659 , Y10T442/674 , Y10T442/68 , Y10T442/681 , Y10T442/689 , Y10T442/696
摘要： A porous polymeric sheet is provided having an electrostatic charge and comprising a zero-three composite of a polymeric matrix and a ferroelectric material dispersed therein. The polymeric component comprises a non-polar thermoplastic polymer, such as a polyolefin, and a second thermoplastic polymer having polar functional units, such as a telomer. The composite material is formed into a porous sheet and is electrically or corona poled to create an electret material which is well suited four use in various filtration, air-masking and dust wipe applications.
摘要翻译：提供具有静电电荷并且包含分散在其中的聚合物基质和铁电体材料的零三种复合材料的多孔聚合物片材。聚合物组分包括非极性热塑性聚合物，例如聚烯烃，和具有极性官能单元的第二热塑性聚合物，例如调聚物。复合材料被形成为多孔片材并且被电气或电晕极化以产生驻极体材料，该驻极体材料非常适用于各种过滤，空气掩蔽和防尘擦拭应用中的四种用途。

4. 发明授权

US5800866A Method of preparing small particle dispersions 失效
标题翻译：制备小颗粒分散体的方法
公开(公告)号：US5800866A
公开(公告)日：1998-09-01
申请号：US758749
申请日：1996-12-06
申请人： David Lewis Myers , Leonid Anthony Turkevich
发明人： David Lewis Myers , Leonid Anthony Turkevich
IPC分类号： C08J3/205 , C08J3/22 , B05D7/00 , B05D1/38 , B05D3/12
CPC分类号： C08J3/2056 , C08J3/226 , C08J2391/00 , C08J2491/00
摘要： A method of preparing a dispersion of small particles in a polymeric precursor, which method involves providing a mixture of a particulate material and a surfactant in a nonaqueous solvent, forming a dispersion of the particulate material in the nonaqueous solvent, combining the resulting dispersion of particulate material in the nonaqueous solvent with a precursor material, and heating the combination of the dispersion of particulate material and the precursor material, with mixing, to a temperature sufficient to volatilize the nonaqueous solvent. The surfactant is soluble in the nonaqueous solvent and is adapted to stabilize the particulate material against agglomeration. The nonaqueous solvent swells the polymeric precursor near the boiling point of the nonaqueous solvent. The boiling point of the nonaqueous solvent is greater than a temperature at which the polymeric precursor may be mixed and below a temperature at which the polymeric precursor polymerizes or decomposes. In certain embodiments, the particulate material is an inorganic material. For example, the inorganic material may be a ferroelectric material, such as barium titanate and lead titanate. In other embodiments, the particulate material is a ferromagnetic material, such as magnetite and barium ferrite.
摘要翻译：一种在聚合物前体中制备小颗粒分散体的方法，该方法包括在非水溶剂中提供颗粒材料和表面活性剂的混合物，在非水溶剂中形成颗粒材料的分散体，将得到的颗粒分散体在具有前体材料的非水溶剂中的材料，并将颗粒材料和前体材料的分散体的组合加热至足以挥发非水溶剂的温度。表面活性剂可溶于非水溶剂中，适于稳定颗粒材料以防止团聚。非水溶剂使聚合物前体在非水溶剂的沸点附近溶胀。非水溶剂的沸点大于聚合物前体可以混合的温度，并且低于聚合物前体聚合或分解的温度。在某些实施方案中，颗粒材料是无机材料。例如，无机材料可以是铁电材料，例如钛酸钡和钛酸铅。在其他实施例中，颗粒材料是铁磁材料，例如磁铁矿和钡铁氧体。

5. 发明授权

US6162535A Ferroelectric fibers and applications therefor 失效
标题翻译：铁电纤维及其应用
公开(公告)号：US6162535A
公开(公告)日：2000-12-19
申请号：US762213
申请日：1996-12-06
申请人： Leonid Anthony Turkevich , David Lewis Myers
发明人： Leonid Anthony Turkevich , David Lewis Myers
IPC分类号： B01D39/16 , C08K3/00 , D01F1/10 , D01F6/04 , D01F6/06 , D01F8/00 , D01F8/06 , D04H1/42 , D02G3/00 , D04H1/58
CPC分类号： D01F8/06 , B01D39/1623 , C08K3/10 , D01F1/10 , D01F6/04 , D01F6/06 , D01F8/00 , D04H1/4291 , D04H1/4382 , Y10T428/2913 , Y10T428/2927 , Y10T428/2929 , Y10T428/2967 , Y10T442/693 , Y10T442/696
摘要： A fiber which includes a thermoplastic polymer and particles of a ferroelectric material dispersed therein. The thermoplastic polymer may be, for example, a polyolefin, such as polypropylene or polyethylene, and the ferroelectric material may be barium titanate. The ferroelectric material may be present at a level of from about 0.01 to about 50 percent by weight (from about 0.001 to about 13 percent by volume), and will have a longest dimension in a range of from about 10 nanometers to about 10 micrometers. The fiber may be exposed to an electric field. A plurality of the fibers may be employed to form a knitted or woven fabric or a nonwoven web. Also provided is a method of preparing fibers containing particles of a ferroelectric material. The method includes destructuring the ferroelectric material in the presence of a liquid and a surfactant to give destructured particles; the liquid is a solvent for the surfactant and the surfactant is adapted to stabilize the destructured particles against agglomeration. A blend of the stabilized, destructured ferroelectric material particles and a thermoplastic polymer then is formed and extruded to form fibers. The extruded fibers may be collected on a moving foraminous support to form a nonwoven web and, if desired, may be exposed to an electric field. The fiber of the present invention, especially when in the form of a nonwoven web, is especially suited as a filtration medium. For example, the nonwoven web may be adapted to remove particulate matter from a gaseous stream.
摘要翻译：包含热塑性聚合物的纤维和分散在其中的铁电体的颗粒。热塑性聚合物可以是例如聚烯烃，例如聚丙烯或聚乙烯，铁电材料可以是钛酸钡。铁电材料可以以约0.01至约50重量％（约0.001至约13体积％）的水平存在，并且将具有在约10纳米至约10微米范围内的最长尺寸。光纤可能暴露于电场。可以使用多根纤维来形成针织或机织织物或非织造纤维网。还提供了制备含有铁电材料颗粒的纤维的方法。该方法包括在存在液体和表面活性剂的情况下破坏铁电材料以产生结构破坏的颗粒; 液体是用于表面活性剂的溶剂，并且表面活性剂适于稳定破坏的颗粒以防止团聚。然后形成并挤出稳定的，结构化的铁电材料颗粒和热塑性聚合物的混合物以形成纤维。挤出的纤维可以在移动的多孔载体上收集以形成非织造纤维网，并且如果需要，可以暴露于电场。本发明的纤维，特别是以非织造纤维网的形式，特别适合作为过滤介质。例如，非织造纤维网可以适于从气流中除去颗粒物质。

6. 发明授权

US06858551B1 Ferroelectric fibers and applications therefor 失效
标题翻译：铁电纤维及其应用
公开(公告)号：US06858551B1
公开(公告)日：2005-02-22
申请号：US09267973
申请日：1999-03-12
申请人： Leonid Anthony Turkevich , David Lewis Myers
发明人： Leonid Anthony Turkevich , David Lewis Myers
IPC分类号： B01D39/16 , C08K3/00 , D01F1/10 , D01F6/04 , D01F6/06 , D01F8/00 , D01F8/06 , D04H1/42 , B32B27/18 , A62B18/02
CPC分类号： D01F8/06 , B01D39/1623 , C08K3/10 , D01F1/10 , D01F6/04 , D01F6/06 , D01F8/00 , D04H1/4291 , D04H1/4382 , Y10T428/2913 , Y10T428/2927 , Y10T428/2929 , Y10T428/2967 , Y10T442/693 , Y10T442/696
摘要： A fiber which includes a thermoplastic polymer and particles of a ferroelectric material dispersed therein. The thermoplastic polymer may be, for example, a polyolefin, such as polypropylene or polyethylene, and the ferroelectric material may be barium titanate. The ferroelectric material may be present at a level of from about 0.01 to about 50 percent by weight (from about 0.001 to about 13 percent by volume), and will have a longest dimension in a range of from about 10 nanometers to about 10 micrometers. The fiber may be exposed to an electric field. A plurality of the fibers may be employed to form a knitted or woven fabric or a nonwoven web. Also provided is a method of preparing fibers containing particles of a ferroelectric material. The method includes destructuring the ferroelectric material in the presence of a liquid and a surfactant to give destructured particles; the liquid is a solvent for the surfactant and the surfactant is adapted to stabilize the destructured particles against agglomeration. A blend of the stabilized, destructured ferroelectric material particles and a thermoplastic polymer then is formed and extruded to form fibers. The extruded fibers may be collected on a moving foraminous support to form a nonwoven web and, if desired, may be exposed to an electric field. The fiber of the present invention, especially when in the form of a nonwoven web, is especially suited as a filtration medium. For example, the nonwoven web may be adapted to remove particulate matter from a gaseous stream.
摘要翻译：包含热塑性聚合物的纤维和分散在其中的铁电体的颗粒。热塑性聚合物可以是例如聚烯烃，例如聚丙烯或聚乙烯，铁电材料可以是钛酸钡。铁电材料可以以约0.01至约50重量％（约0.001至约13体积％）的水平存在，并且将具有在约10纳米至约10微米范围内的最长尺寸。光纤可能暴露于电场。可以使用多根纤维来形成针织或机织织物或非织造纤维网。还提供了制备含有铁电材料颗粒的纤维的方法。该方法包括在存在液体和表面活性剂的情况下破坏铁电材料以产生结构破坏的颗粒; 液体是用于表面活性剂的溶剂，并且表面活性剂适于稳定破坏的颗粒以防止团聚。然后形成并挤出稳定的，结构化的铁电材料颗粒和热塑性聚合物的混合物以形成纤维。挤出的纤维可以在移动的多孔载体上收集以形成非织造纤维网，并且如果需要，可以暴露于电场。本发明的纤维，特别是以非织造纤维网的形式，特别适合作为过滤介质。例如，非织造纤维网可以适于从气流中除去颗粒物质。

7. 发明授权

US5998023A Surface modification of hydrophobic polymer substrate 失效
标题翻译：疏水聚合物基材的表面改性
公开(公告)号：US5998023A
公开(公告)日：1999-12-07
申请号：US5399
申请日：1998-01-09
申请人： Leonid Anthony Turkevich , David Lewis Myers , Gunilla Elsa Gillberg-LaForce
发明人： Leonid Anthony Turkevich , David Lewis Myers , Gunilla Elsa Gillberg-LaForce
IPC分类号： C08J7/04 , D06M15/333 , D06M23/10 , B32B27/02 , B32B27/32
CPC分类号： C08J7/047 , D06M15/3335 , D06M23/10 , C08J2431/00 , D06M2101/20 , Y10T428/2907 , Y10T428/2915 , Y10T428/2933 , Y10T428/2938 , Y10T428/2967 , Y10T428/2971
摘要： A method for coating the surface of a substrate composed of a hydrophobic polymer with a hydrophobic vinyl polymer. The method includes preparing a solution of the hydrophobic vinyl polymer in a polar nonaqueous solvent, such as 1-methyl-1-pyrrolidinone, in which the hydrophobic vinyl polymer is surface-active. The substrate then is treated with the solution under conditions sufficient to deposit the hydrophobic vinyl polymer on the substrate. The hydrophobic vinyl polymer may have readily hydrolyzable pendant groups which, upon hydrolysis thereof in an aqueous medium, will result in the formation of a hydrophilic vinyl polymer coating on the substrate. For example, the hydrophobic vinyl polymer may be poly(vinyl trifluoroacetate). Also provided are coated substrates, in which the substrate is a shaped article composed of a hydrophobic polymer. The shaped article may be, for example, a film, fiber, or nonwoven web.
摘要翻译：一种用疏水性乙烯基聚合物涂覆由疏水性聚合物组成的基材的表面的方法。该方法包括制备疏水乙烯基聚合物在极性非水溶剂如1-甲基-1-吡咯烷酮中的溶液，其中疏水乙烯基聚合物是表面活性的。然后在足以将疏水性乙烯基聚合物沉积在基材上的条件下用溶液处理基材。疏水性乙烯基聚合物可以具有容易水解的侧基，其在水性介质中水解时将导致在基材上形成亲水性乙烯基聚合物涂层。例如，疏水性乙烯基聚合物可以是聚（乙烯基三氟乙酸盐）。还提供了涂布基材，其中基材是由疏水性聚合物构成的成型制品。成形制品可以是例如膜，纤维或非织造纤维网。

8. 发明授权

US5733603A Surface modification of hydrophobic polymer substrate 失效
公开(公告)号：US5733603A
公开(公告)日：1998-03-31
申请号：US658333
申请日：1996-06-05
申请人： Leonid Anthony Turkevich , David Lewis Myers , Gunilla Elsa Gillberg-LaForce
发明人： Leonid Anthony Turkevich , David Lewis Myers , Gunilla Elsa Gillberg-LaForce
IPC分类号： C08J7/04 , D06M15/333 , D06M23/10 , B05D3/10
CPC分类号： C08J7/047 , D06M15/3335 , D06M23/10 , C08J2431/00 , D06M2101/20 , Y10T428/2907 , Y10T428/2915 , Y10T428/2933 , Y10T428/2938 , Y10T428/2967 , Y10T428/2971
摘要： A method for coating the surface of a substrate composed of a hydrophobic polymer with a hydrophobic vinyl polymer. The method includes preparing a solution of the hydrophobic vinyl polymer in a polar nonaqueous solvent, such as 1-methyl-1-pyrrolidinone, in which the hydrophobic vinyl polymer is surface-active. The substrate then is treated with the solution under conditions sufficient to deposit the hydrophobic vinyl polymer on the substrate. The hydrophobic vinyl polymer may have readily hydrolyzable pendant groups which, upon hydrolysis thereof in an aqueous medium, will result in the formation of a hydrophilic vinyl polymer coating on the substrate. For example, the hydrophobic vinyl polymer may be poly(vinyl trifluoroacetate). Also provided are coated substrates, in which the substrate is a shaped article composed of a hydrophobic polymer. The shaped article may be, for example, a film, fiber, or nonwoven web.

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