Shear spun sub-micrometer fibers
    11.
    发明授权

    公开(公告)号:US10400355B2

    公开(公告)日:2019-09-03

    申请号:US14912292

    申请日:2014-08-15

    Abstract: A process including shearing a first dispersion medium and a second dispersion medium under conditions that precipitate a plurality of polymeric fibers; and collecting the plurality of polymeric fibers at a rate of at least 300 grams/hour. The first dispersion medium is a solution including at least one polymeric component. The at least one polymeric component includes a polyetherimide component selected from the group consisting of polyetherimide homopolymers, polyetherimide co-polymers, polyetherether ketones homopolymers, polyetherether ketones copolymers, polyphenylene sulfones homopolymers, polyphenylene sulfones copolymers, and combinations thereof. Products produced by the process can be non-woven paper, medical implants, ultra-fine filters, membranes, hospital gowns, electrical insulation paper, honeycomb structures and personal hygiene products, dialyzers, blood, oxygenator filters, intravenous (IV) filters, diagnostic test filters, and blood/apheresis filters.

    Force spun sub-micron fiber and applications

    公开(公告)号:US10119214B2

    公开(公告)日:2018-11-06

    申请号:US14329801

    申请日:2014-07-11

    Abstract: A process of forming a non-woven web including spinning continuous polymeric filaments including one selected from a poly(phenylene ether) component, a poly(phenylene ether)-polysiloxane block copolymer, and combinations thereof. The filaments can have a length to diameter ratio that is more than 1,000,000, and a diameter ranging from 50 nanometers to 5 microns. The spinning can include passing a polymer through a spinneret having a plurality of orifices in a non-electrospinning environment. The process can further include chopping the plurality of continuous filaments and obtaining a plurality of chopped nano-fibers and forming the nano-fibers into a nonwoven web. The spinning can be conducted at a rate of at least 300 grams/hour/spinneret.

    FORCE SPUN SUB-MICRON FIBER AND APPLICATIONS
    15.
    发明申请
    FORCE SPUN SUB-MICRON FIBER AND APPLICATIONS 审中-公开
    强力松散的亚微米纤维和应用

    公开(公告)号:US20150024163A1

    公开(公告)日:2015-01-22

    申请号:US14329801

    申请日:2014-07-11

    Abstract: A process of forming a non-woven web including spinning continuous polymeric filaments including one selected from a poly(phenylene ether) component, a poly(phenylene ether)-polysiloxane block copolymer, and combinations thereof. The filaments can have a length to diameter ratio that is more than 1,000,000, and a diameter ranging from 50 nanometers to 5 microns. The spinning can include passing a polymer through a spinneret having a plurality of orifices in a non-electrospinning environment. The process can further include chopping the plurality of continuous filaments and obtaining a plurality of chopped nano-fibers and forming the nano-fibers into a nonwoven web. The spinning can be conducted at a rate of at least 300 grams/hour/spinneret.

    Abstract translation: 形成包括纺丝连续聚合长丝的无纺纤维网的方法,包括选自聚(亚苯基醚)组分,聚(苯醚) - 聚硅氧烷嵌段共聚物和其组合中的一种。 长丝可以具有大于1,000,000的长径比,直径范围为50纳米至5微米。 纺丝可以包括使聚合物通过在非静电纺丝环境中具有多个孔的喷丝头。 该方法还可以包括切割多个连续长丝并获得多个短切纳米纤维并将纳米纤维形成非织造纤网。 纺丝可以以至少300克/小时/喷丝头的速度进行。

    Continuous wire drive system for needleless electrospinning apparatus

    公开(公告)号:US10947643B2

    公开(公告)日:2021-03-16

    申请号:US16475745

    申请日:2018-01-05

    Abstract: A continuous wire drive system for a needleless electrospinning apparatus, the electrospinning apparatus including an electrospinning enclosure and within which a nanoscale or submicron scale polymer fiber web is formed onto a substrate from a liquid polymer layer coated onto a plurality of continuous electrode wires passing through the electrospinning enclosure. The continuous wire drive system includes a master wire drive drum and a slave wire drive drum, each of the master wire drive drum and slave wire drive drum including a plurality of wire guides, each of the wire guides including a channel or groove for receiving one of the plurality of continuous electrode wires. The continuous wire drive system is external to the electrospinning apparatus, and the continuous wire drive system drives the plurality of continuous electrode wires through the electrospinning enclosure.

    CONTINUOUS WIRE DRIVE SYSTEM FOR NEEDLELESS ELECTROSPINNING APPARATUS

    公开(公告)号:US20200378033A1

    公开(公告)日:2020-12-03

    申请号:US16475745

    申请日:2018-01-05

    Abstract: A continuous wire drive system for a needleless electrospinning apparatus, the electrospinning apparatus including an electrospinning enclosure and within which a nanoscale or submicron scale polymer fiber web is formed onto a substrate from a liquid polymer layer coated onto a plurality of continuous electrode wires passing through the electrospinning enclosure. The continuous wire drive system includes a master wire drive drum and a slave wire drive drum, each of the master wire drive drum and slave wire drive drum including a plurality of wire guides, each of the wire guides including a channel or groove for receiving one of the plurality of continuous electrode wires. The continuous wire drive system is external to the electrospinning apparatus, and the continuous wire drive system drives the plurality of continuous electrode wires through the electrospinning enclosure.

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