公开(公告)号：WO2008085544A2

公开(公告)日：2008-07-17

申请号：PCT/US2007073645

申请日：2007-07-17

Applicant: 3M INNOVATIVE PROPERTIES CO

Inventor： ANGADJIVAND SEYED A ,  FOX ANDREW R ,  STELTER JOHN D ,  LINDQUIST TIMOTHY J ,  BRANDNER JOHN M ,  SPRINGETT JAMES E

IPC: A62B7/00

CPC classification number: D04H3/16 ,  A41D13/1146 ,  A62B23/025 ,  D04H3/14 ,  Y10T428/1362 ,  Y10T428/249921

Abstract: A molded respirator is made from a monocomponent monolayer nonwoven web containing a bimodal mass fraction/fiber size mixture of intermingled continuous monocomponent polymeric microfibers and larger size fibers of the same polymeric composition. The respirator is a cup-shaped porous monocomponent monolayer matrix whose matrix fibers are bonded to one another at at least some points of fiber intersection. The matrix has a King Stiffness greater than 1 N. The respirator may be formed without requiring stiffening layers, bicomponent fibers, or other reinforcement in the filter media layer.

Abstract translation: 模制呼吸器由单组分单层非织造纤维网制成，其包含混合的连续单组分聚合物微纤维和具有相同聚合物组合物的更大尺寸纤维的双峰质量分数/纤维尺寸混合物。 呼吸器是杯状多孔单组分单层基质，其基质纤维在至少一些纤维交叉点处彼此粘合。 基质具有大于1N的王劲度。呼吸器可以在过滤介质层中不需要加强层，双组分纤维或其他增强物而形成。

公开(公告)号：WO2008085546A2

公开(公告)日：2008-07-17

申请号：PCT/US2007073650

申请日：2007-07-17

Applicant: 3M INNOVATIVE PROPERTIES CO

Inventor： ANGADJIVAND SEYED A ,  SPRINGETT JAMES E ,  BRANDNER JOHN M ,  JONES MARVIN E ,  FOX ANDREW R ,  BERRIGAN MICHAEL R ,  STELTER JOHN D

IPC: A62B7/00 ,  D04H3/14 ,  D04H3/16

CPC classification number: A62B23/025 ,  A41D13/113 ,  D04H3/14 ,  D04H3/16

Abstract: A flat-fold respirator is made from a stiff filtration panel joined to the remainder of the respirator through at least one line of demarcation. The panel contains a porous monocomponent monolayer nonwoven web that contains charged intermingled continuous monocomponent polymeric fibers of the same polymeric composition and that has sufficient basis weight or inter-fiber bonding so that the web exhibits a Gurley Stiffness greater than 200 mg and the respirator exhibits less than 20 mm H2O pressure drop. The respirator may be formed without requiring additional stiffening layers, bicomponent fibers, or other reinforcement and can be flat-folded for storage. Scrap from the manufacturing process may be recycled to make additional stiff filtration panel web.

Abstract translation: 扁平呼吸器由坚硬的过滤面板制成，通过至少一条分界线连接到呼吸器的其余部分。 该面板含有多孔单组分单层非织造纤维网，其包含具有相同聚合物组合物的带电混合连续单组分聚合物纤维并且具有足够的基重或纤维间粘合力，使得该纤维网表现出大于200mg的格利劲度，并且呼吸器展现出更小 超过20毫米H2O的压降。 呼吸器可以形成而不需要额外的硬化层，双组分纤维或其他增强物，并且可以被平折以便储存。 生产过程中产生的废料可能被回收利用，以制造额外的硬质过滤面板网。

公开(公告)号：WO2011062843A3

公开(公告)日：2011-09-15

申请号：PCT/US2010056479

申请日：2010-11-12

Applicant: 3M INNOVATIVE PROPERTIES CO ,  ANGADJIVAND SEYED ,  JONES MARVIN E ,  MARTIN PHILIP G ,  BRANDNER JOHN M

Inventor： ANGADJIVAND SEYED ,  JONES MARVIN E ,  MARTIN PHILIP G ,  BRANDNER JOHN M

IPC: A62B7/10 ,  A62B23/02 ,  B01D39/02

CPC classification number: A62B23/025 ,  A41D13/1107 ,  A41D13/1146 ,  B01D39/083 ,  B01D39/1623 ,  B01D2239/0654 ,  B01D2239/0681

Abstract: Reinforced filter media are prepared by adhering discrete, non-intersecting strands of thermoplastic or thermoset materials to the filter media web. The filter media may be a fabric, a nonwoven web or a filtering foam. The reinforced filter media can be used to prepare respirators, including flat-fold respirators or molded respirators.

Abstract translation: 通过将离散的，不相交的热塑性或热固性材料的线粘合到过滤介质网上来制备增强的过滤介质。 过滤介质可以是织物，非织造纤维网或过滤泡沫。 增强过滤介质可用于制备呼吸器，包括平折式呼吸器或模制呼吸器。

公开(公告)号：WO2010114820A3

公开(公告)日：2011-02-10

申请号：PCT/US2010029157

申请日：2010-03-30

Applicant: 3M INNOVATIVE PROPERTIES CO ,  LI FUMING B ,  SEBASTIAN JOHN M ,  JONES MARVIN E ,  BRANDNER JOHN M ,  OLSON DAVID A ,  KEOUGH JUSTIN L

Inventor： LI FUMING B ,  SEBASTIAN JOHN M ,  JONES MARVIN E ,  BRANDNER JOHN M ,  OLSON DAVID A ,  KEOUGH JUSTIN L

IPC: D04H1/4291 ,  D04H1/54 ,  D04H3/007 ,  D04H3/16

CPC classification number: D04H1/4291 ,  B01D39/1623 ,  B01D2239/0435 ,  B01D2239/086 ,  C08F2/00 ,  D01D5/0985 ,  D01F1/10 ,  D01F6/04 ,  D04H1/54 ,  D04H3/007 ,  D04H3/16 ,  Y10T29/49226

Abstract: Methods of preparing polymeric webs include hot melt blending of thermoplastic resins and processing aids. The process aids include hindered amine N-substituted succinimide oligomers. The webs prepared from the blends may be in the form of films or non-woven fibrous webs. Non-woven microfiber webs are useful as filtration media. Among the polymeric webs produced are electret webs. The processing aids also function as charge-enhancing additives for the electret webs.

Abstract translation: 制备聚合物网的方法包括热塑性树脂和加工助剂的热熔共混。 加工助剂包括受阻胺N-取代琥珀酰亚胺低聚物。 由共混物制备的网可以是薄膜或非织造纤维网的形式。 非织造超细纤维网可用作过滤介质。 所生产的聚合物网中有驻极体网。 加工助剂也用作驻极体网的电荷增强添加剂。

公开(公告)号：WO2012006338A3

公开(公告)日：2012-05-03

申请号：PCT/US2011043052

申请日：2011-07-06

Applicant: 3M INNOVATIVE PROPERTIES CO ,  WU TIEN T ,  LE JIMMY M ,  VALL DAVID L ,  HOFFDAHL GERRY A ,  SONG LIMING ,  LE NORMAND JEAN ,  BOTH HENDRIK ,  PRINSZE MENNO ,  BRANDNER JOHN M ,  PEREZ MARIO A ,  HENDERSON JOHN W

Inventor： WU TIEN T ,  LE JIMMY M ,  VALL DAVID L ,  HOFFDAHL GERRY A ,  SONG LIMING ,  LE NORMAND JEAN ,  BOTH HENDRIK ,  PRINSZE MENNO ,  BRANDNER JOHN M ,  PEREZ MARIO A ,  HENDERSON JOHN W

IPC: D04H1/54 ,  D04H1/42 ,  D04H1/541 ,  D04H1/58 ,  D04H1/72 ,  D04H1/732

CPC classification number: D04H1/736 ,  B32B3/263 ,  B32B3/266 ,  B32B5/022 ,  B32B5/08 ,  B32B5/26 ,  D04H1/54 ,  D04H1/541 ,  D04H1/732 ,  Y10T428/24331 ,  Y10T428/24372 ,  Y10T428/24405 ,  Y10T428/24413 ,  Y10T428/24421 ,  Y10T428/2443 ,  Y10T428/24479 ,  Y10T428/24521 ,  Y10T428/24612

Abstract: Nonwoven electret fibrous webs including randomly oriented discrete fibers comprising electret fibers, the webs including a multiplicity of non-hollow projections extending from a major surface of the nonwoven electret fibrous web, and a multiplicity of substantially planar land areas formed between each adjoining projection in a plane defined by and substantially parallel with the major surface. In some exemplary embodiments, the randomly oriented discrete fibers include multi-component fibers having at least a first region having a first melting temperature and a second region having a second melting temperature, wherein the first melting temperature is less than the second melting temperature. At least a portion of the oriented discrete fibers are bonded together at a plurality of intersection points with the first region of the multi-component fibers. In certain embodiments, the patterned air-laid nonwoven electret fibrous webs include particulates. Methods of making and using patterned electret fibrous webs are also disclosed.

Abstract translation: 包括随机取向的离散纤维的非织造驻极体纤维网包括驻极体纤维，所述网包括从非织造驻极体纤维网的主表面延伸的多个非中空凸起，以及在每个相邻凸起之间形成的多个基本上平坦的陆部面积， 由主表面限定并基本平行的平面。 在一些示例性实施例中，无规取向的离散纤维包括具有至少具有第一熔融温度的第一区域和具有第二熔融温度的第二区域的多组分纤维，其中第一熔融温度小于第二熔融温度。 至少一部分取向的离散纤维在与多组分纤维的第一区域的多个交点处结合在一起。 在某些实施例中，图案化气纺非织造驻极体纤维网包括颗粒。 还公开了制造和使用图案化驻极体纤维网的方法。

公开(公告)号：WO2008085545A3

公开(公告)日：2008-10-09

申请号：PCT/US2007073648

申请日：2007-07-17

Applicant: 3M INNOVATIVE PROPERTIES CO

Inventor： ANGADJIVAND SEYED A ,  JONES MARVIN E ,  SPRINGETT JAMES E ,  BRANDNER JOHN M ,  LINDQUIST TIMOTHY J

IPC: D04H1/54 ,  D04H3/02 ,  D04H3/14 ,  D04H3/16

CPC classification number: D04H3/02 ,  B01D39/163 ,  B01D2239/064 ,  D01D5/082 ,  D01D5/0985 ,  D04H3/14 ,  D04H3/16

Abstract: Shaped filtration articles are made from a monocomponent nonwoven web formed by flowing first and second fiber-forming materials of the same polymeric composition through first and second die cavities in respective fluid communication with first and second sets of orifices in a meltblowing die tip. The first fiber-forming material flows at a lesser flow rate or viscosity through the first die cavity and first set of orifices to form a set of smaller size filaments and the second fiber-forming material flows at a greater flow rate or viscosity through the second die cavity and second set of orifices to form a set of larger size filaments. The collected nonwoven web contains a meltblown bimodal mass fraction/fiber size mixture of intermingled continuous microfibers and larger size fibers of the same polymeric composition.

Abstract translation: 形成的过滤制品由单组分非织造织物制成，所述单组分非织造纤维网通过在熔吹模头中与第一和第二组孔流体连通地通过第一和第二模具腔流动相同聚合物组合物的第一和第二纤维形成材料而形成。 第一纤维形成材料以较小的流速或粘度通过第一模腔和第一组孔流动以形成一组较小尺寸的细丝，并且第二纤维形成材料以更大的流速或粘度流过第二纤维形成材料 模腔和第二组孔以形成一组较大尺寸的细丝。 收集的非织造纤维网含有相同聚合物组合物的混合连续微纤维和较大尺寸纤维的熔喷双峰质量分数/纤维尺寸混合物。