公开(公告)号：US11486063B2

公开(公告)日：2022-11-01

申请号：US16103102

申请日：2018-08-14

Applicant: Lintec of America, Inc.

Inventor： Julia Bykova ,  Marcio D. Lima

IPC: D02G3/04 ,  D02G3/44 ,  C01B32/158 ,  D02G3/36 ,  D02G3/40

Abstract: An insulated nanofiber having a continuous nanofiber collection extending along a longitudinal axis with an outside surface and an inside portion is described. A first material infiltrates the inside portion, where the outside surface of the nanofiber collection is substantially free of the first material. An electrically-insulating second material coats the outside surface of the nanofiber collection. A method of making an insulated nanofiber collection is also disclosed.

公开(公告)号：US11370191B2

公开(公告)日：2022-06-28

申请号：US16044739

申请日：2018-07-25

Applicant: Lintec of America, Inc.

Inventor： Marcio D. Lima ,  Julia Bykova

IPC: B32B5/12 ,  C01B32/168 ,  C01B32/162 ,  B82Y40/00 ,  B32B5/14 ,  B32B9/04 ,  B32B9/00 ,  C01B32/159 ,  B82Y30/00

Abstract: A density of a nanofiber sheet can be changed using an edged surface, and in particular an arcuate edged surface. As described herein, a nanofiber sheet is drawn over (and in contact with) an arcuate edged surface. Depending on whether the arcuate surface facing a direction opposite the direction in which the nanofiber sheet is being drawn is convex or concave determines whether the nanofiber sheet density is increased relative to the as-drawn sheet or decreased relative to the as-drawn sheet.

公开(公告)号：US20190055677A1

公开(公告)日：2019-02-21

申请号：US16051586

申请日：2018-08-01

Applicant: Lintec of America, Inc.

Inventor： Marcio D. Lima

IPC: D02G3/44 ,  D02G3/36 ,  H01B1/18

Abstract: Techniques are described for infiltrating a nanofiber yarn with an infiltration material and removing a surface layer of the infiltration material on at least a portion of the infiltrated nanofiber yarn. This enables an infiltration method by which the infiltration material is selectively disposed within an interior of a nanofiber yarn and not disposed on an exterior surface of at least a portion of a nanofiber yarn. Electrical connection can be established by mechanically connecting an electrode (e.g., a conductive clamp or fitting) directly to the exposed surface of the nanofiber yarn.

公开(公告)号：US11613467B2

公开(公告)日：2023-03-28

申请号：US17403252

申请日：2021-08-16

Applicant: LINTEC OF AMERICA, INC.

Inventor： Julia Bykova ,  Marcio D. Lima

IPC: B32B37/12 ,  C01B32/16 ,  B82Y30/00 ,  B82Y40/00 ,  B29K105/16

Abstract: A nanofiber yarn placement system includes a yarn dispenser assembly, and a placement assembly. The placement assembly includes a compliant flange, and a guide connected to the compliant flange. The guide defining a channel. The channel includes at least one internal surface and at least one corner defined by the at least one internal surface.

公开(公告)号：US10941040B2

公开(公告)日：2021-03-09

申请号：US16114464

申请日：2018-08-28

Applicant: Lintec of America, Inc.

Inventor： Marcio D. Lima ,  Julia Bykova

IPC: C01B32/176 ,  D01D5/42 ,  D01F9/12 ,  D02G3/16 ,  C01B32/16 ,  D02G3/44 ,  B82Y30/00 ,  B82Y40/00 ,  D01D10/00 ,  D01F9/127

Abstract: Techniques are described for controlling widths of nanofiber sheets drawn from a nanofiber forest. Nanofiber sheet width can be controlled by dividing or sectioning the nanofiber sheet in its as-drawn state into sub-sheets as the sheet is being drawn. A width of a sub-sheet can be controlled or selected so as to contain regions of uniform nanofiber density within a sub-sheet (thereby improving nanofiber yarn consistency) or to isolate an inhomogeneity (whether a discontinuity is the sheet (e.g., a tear) or a variation in density) within a sub-sheet. Techniques for dividing a nanofiber sheet into sub-sheets includes mechanical, corona, and electrical arc techniques.

公开(公告)号：US10900145B2

公开(公告)日：2021-01-26

申请号：US15844756

申请日：2017-12-18

Applicant: Lintec of America, Inc.

Inventor： BaeKyun Kim ,  Julia Bykova ,  Luis Plata ,  Yang Yang ,  Marcio D. Lima

IPC: D02G1/02 ,  D01H1/02

Abstract: Methods, systems, and apparatus for fabricating nanofiber yarn at rates of at least 30 m/min (1.8 kilometers (km)/hour (hr)) using a “false twist” nanofiber yarn spinner and a false twist spinning technique are disclosed. In a false twist spinning technique, a twist is introduced to nanofibers in a strand by twisting the nanofibers at points between ends of the strand. This is in contrast to the “true twist” technique where one end of a strand is fixed and the opposing end of the strand is rotated to introduce the twist to intervening portions of yarn.

公开(公告)号：US20190093258A1

公开(公告)日：2019-03-28

申请号：US16114464

申请日：2018-08-28

Applicant: Lintec of America, Inc.

Inventor： Marcio D. Lima ,  Julia Bykova

IPC: D01D5/42 ,  D01F9/12 ,  D02G3/44 ,  D02G3/16

Abstract: Techniques are described for controlling widths of nanofiber sheets drawn from a nanofiber forest. Nanofiber sheet width can be controlled by dividing or sectioning the nanofiber sheet in its as-drawn state into sub-sheets as the sheet is being drawn. A width of a sub-sheet can be controlled or selected so as to contain regions of uniform nanofiber density within a sub-sheet (thereby improving nanofiber yarn consistency) or to isolate an inhomogeneity (whether a discontinuity is the sheet (e.g., a tear) or a variation in density) within a sub-sheet. Techniques for dividing a nanofiber sheet into sub-sheets includes mechanical, corona, and electrical arc techniques.

公开(公告)号：US20180306741A1

公开(公告)日：2018-10-25

申请号：US15927325

申请日：2018-03-21

Applicant: Lintec of America, Inc.

Inventor： Takahiro Ueda ,  Marcio D. Lima

IPC: G01N27/12 ,  D02G3/36 ,  D01H7/92 ,  A61B5/145 ,  A61B5/1477

CPC classification number: G01N27/127 ,  A61B5/14517 ,  A61B5/1477 ,  D01H7/92 ,  D02G3/36 ,  G01N27/126

Abstract: Nanofiber based sensors are described that can be used to detect analytes in biological or non-biological contexts. Each sensor includes at least two nanofiber yarns that are spaced apart from one another so as to avoid electrical (or physical) contact. Each nanofiber yarn of the nanofiber sensor includes a sensing region that is in electrical contact with the rest of the corresponding nanofiber yarn. The sensing regions of the at least two nanofibers are treated with complementary sensing agents so that when the sensing regions (and the corresponding sensing agents) are exposed to the analyte to be detected, an electrical response is detected. This response is then communicated through one or more of the nanofiber yarns for interpretation by a processor.

公开(公告)号：US20180297340A1

公开(公告)日：2018-10-18

申请号：US15950284

申请日：2018-04-11

Applicant: Lintec of America, Inc.

Inventor： Marcio D. Lima ,  Julia Bykova

IPC: B32B27/12 ,  B32B5/26 ,  B32B27/32 ,  B29C61/02 ,  B32B27/08 ,  B32B27/30 ,  B32B1/08 ,  B29C63/06 ,  B29C63/40 ,  C23C14/30 ,  C23C14/18

Abstract: A multilayer composite is disclosed comprising a heat shrinkable polymer layer and a nanofiber layer. Methods of forming the composite and uses thereof are also described.

公开(公告)号：US11001950B2

公开(公告)日：2021-05-11

申请号：US16364955

申请日：2019-03-26

Applicant: Lintec of America, Inc.

Inventor： Marcio D. Lima

IPC: B32B5/10 ,  B32B5/26 ,  B32B5/28 ,  B29C70/34 ,  B32B38/08 ,  D04H1/64 ,  D04H5/04 ,  D04H1/74 ,  D06M10/10 ,  D04H1/4242 ,  D04H5/08 ,  B32B5/02 ,  B32B37/12 ,  B32B37/24 ,  B32B27/12 ,  D06M15/19 ,  D06M101/40

Abstract: One or more nanofiber yarns can be placed in contact with one or more nanofiber sheets. The nanofiber yarns, which include single-ply and multi-ply nanofiber yarns, provide added mechanical stability to a nanofiber sheet that decreases the likelihood of a nanofiber sheet wrinkling, folding, or otherwise becoming stuck to itself. Furthermore, the nanofiber yarns integrated with the nanofiber sheet can also act as a mechanism to prevent the propagation of tears through the nanofiber sheet. In some cases, an infiltrating material can be infiltrated into interstitial spaces defined by the nanofibers within both the nanofiber yarns and the nanofiber sheets. The infiltrating material can then form a continuous network throughout the nanofiber yarns and the nanofiber sheet.