DIMENSIONALLY-STABLE MELT BLOWN NONWOVEN FIBROUS STRUCTURES, AND METHODS AND APPARATUS FOR MAKING SAME
    14.
    发明申请
    DIMENSIONALLY-STABLE MELT BLOWN NONWOVEN FIBROUS STRUCTURES, AND METHODS AND APPARATUS FOR MAKING SAME 审中-公开
    尺寸稳定的熔体非结构纤维结构,以及制造它们的方法和装置

    公开(公告)号:US20160298266A1

    公开(公告)日:2016-10-13

    申请号:US15038487

    申请日:2014-11-19

    Abstract: A process and apparatus for producing a dimensionally stable melt blown nonwoven fibrous web. The process includes forming a multiplicity of melt blown fibers by passing a molten stream including molecules of at least one thermoplastic semi-crystalline (co)polymer through at least one orifice of a melt-blowing die, subjecting at least a portion of the melt blown fibers to a controlled in-flight heat treatment operation at a temperature below a melting temperature of the at least one thermoplastic semi-crystalline (co)polymer immediately upon exiting from the at least one orifice, and collecting at least some of the melt blown fibers subjected to the controlled in-flight heat treatment operation on a collector to form a non-woven fibrous structure. The nonwoven fibrous structure exhibits a Shrinkage less than a Shrinkage measured on an identically-prepared structure including only fibers not subjected to the controlled in-flight heat treatment operation, and generally less than 15%.

    Abstract translation: 用于生产尺寸稳定的熔喷非织造纤维网的方法和设备。 该方法包括通过使包含至少一种热塑性半结晶(共)聚合物的分子的熔融流通过熔喷模具的至少一个孔,使至少一部分熔喷 在至少一种热塑性半结晶(共)聚合物的熔融温度以下的温度下,在离开至少一个孔口时立即进行受控飞行中热处理操作的纤维,并收集至少一些熔喷纤维 在收集器上进行受控的飞行中热处理操作以形成无纺纤维结构。 非织造纤维结构体的收缩率小于在相同制备的结构上测量的收缩率,其仅包括不经受受控飞行中热处理操作的纤维,通常小于15%。

    MELT-SPINNING PROCESS, MELT-SPUN NONWOVEN FIBROUS WEBS AND RELATED FILTRATION MEDIA
    16.
    发明申请
    MELT-SPINNING PROCESS, MELT-SPUN NONWOVEN FIBROUS WEBS AND RELATED FILTRATION MEDIA 审中-公开
    熔融纺丝工艺,熔融纺丝非织造纤维织物和相关过滤介质

    公开(公告)号:US20160206984A1

    公开(公告)日:2016-07-21

    申请号:US14914675

    申请日:2014-09-02

    Abstract: High loft nonwoven webs including a population of substantially continuous mono-component melt-spun filaments, wherein the nonwoven web exhibits a Solidity of less than eight percent with a weight normalized cross direction (CD) tensile greater than 10 Newtons per 100 grams per square meter of web weight (10 N/100 gsm), and wherein the nonwoven web is substantially free of gap-formed fibers, crimped fibers, staple fibers, and bi-component fibers. High loft spun-bond nonwoven webs can be advantageously used in filtration articles. Methods of making high loft spun-bond nonwoven webs, and filtration articles including high loft spun-bond webs made according to the methods, are also disclosed.

    Abstract translation: 包括基本上连续的单组分熔纺丝的群体的高蓬松非织造纤维网,其中非织造纤维网的重量标准化横向(CD)拉伸强度大于10牛顿/ 100克/平方米,其粘度小于8% 的纤维网重量(10N / 100gsm),并且其中非织造纤维网基本上没有间隙形成的纤维,卷曲纤维,短纤维和双组分纤维。 高折叠纺粘非织造纤维网可有利地用于过滤制品中。 还公开了制造高倾斜纺粘非织造网的方法,以及根据该方法制造的包括高纬度纺粘纤维网的过滤制品。

    CONSTRUCTIONS FOR FLUID MEMBRANE SEPARATION DEVICES
    17.
    发明申请
    CONSTRUCTIONS FOR FLUID MEMBRANE SEPARATION DEVICES 审中-公开
    流体膜分离装置的结构

    公开(公告)号:US20150343388A1

    公开(公告)日:2015-12-03

    申请号:US14649348

    申请日:2013-12-13

    Abstract: Described herein is a construction comprising (a) a support sheet having a base, comprising (i) a plurality of rails extending from the base wherein each rail of the plurality of rails extends continuously down a length of the support sheet and each rail comprises a first side surface and an opposing second side surface and a top surface; and (ii) a plurality of first protrusions extending from the base, wherein the plurality of first protrusions are located between the plurality of rails; and (b) a selectively permeable membrane having a first major membrane surface contacting at least the top surface of at least two rails enclosing a flow channel having a height extending between the base of the support sheet and the first major membrane surface, wherein the plurality of protrusions change the height of the flow channel along its length along the longitudinal axis of the flow channel.

    Abstract translation: 本文描述的是一种结构,其包括(a)具有基座的支撑片,包括(i)从基座延伸的多个轨道,其中多个轨道中的每个轨道沿支撑片材的长度连续地延伸,并且每个轨道包括 第一侧表面和相对的第二侧表面和顶表面; 和(ii)从所述基座延伸的多个第一突起,其中所述多个第一突起位于所述多个轨道之间; 和(b)具有第一主要膜表面的选择性渗透膜,所述第一主膜表面至少与至少两个轨道的顶表面接触,所述至少两个轨道包围具有在所述支撑片材的基底和所述第一主要膜表面之间延伸的高度的流动通道, 的突起沿着流道的纵向轴线沿其长度改变流动通道的高度。

    ABRASIVE ARTICLE WITH CALENDERED COMBINATION

    公开(公告)号:US20250001551A1

    公开(公告)日:2025-01-02

    申请号:US18689372

    申请日:2022-09-08

    Abstract: Aspects of the present disclosure relate to a method of making an abrasive article. The method can include providing a combination of a mesh backing and a fastener. The mesh backing has a first side and a second side and the mesh backing has a fastener disposed on the second side and intertwined through the mesh backing therein. The combination comprises a raised portion on the first side having a first dimension. The method can include calendering the first side of the mesh backing to form a calendered mesh backing such that the raised portion results in a second dimension. The second dimension is less than the first dimension. The method can include depositing a curable make layer precursor on a major surface of the calendered mesh backing, deposing a plurality of abrasive particles onto the curable make layer precursor, and at least partially curing the curable make layer precursor.

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