公开(公告)号：US12215440B2

公开(公告)日：2025-02-04

申请号：US17773366

申请日：2020-11-03

Applicant: Avient Protective Materials B.V.

Inventor： Luigi Balzano ,  Franciscus Wilhelmus Maria Gelissen ,  Francois Antoine Marie Op Den Buijsch ,  David Michael Cummins

IPC: D01F8/06 ,  D01F1/02 ,  D01F8/12 ,  D01F8/14

Abstract: The present invention relates to a polyolefin fiber comprising polymeric structures, wherein the polymeric structures individually comprise a polycondensate and a functionalized polymer, and the polyolefin fiber is a gel-spun high-performance polyethylene fiber that has a tenacity of at least 1 N/tex. The polymeric structures are immiscible with and dispersed in the polyethylene fiber. The gel-spun high-performance polyethylene fiber is a gel-spun ultrahigh molecular weight polyethylene fiber. The present invention further relates to a process for making the polyolefin fiber comprising the steps of: melt-mixing the polycondensate or a polycondensate containing at least one additive, the functionalized polymer, and optionally the thermoplastic polymer and/or the at least one additive, to form polymeric structures; mixing polyolefin powder, the polymeric structures and a solvent to form a mixture; and spinning and drawing the mixture obtained in step ii) to form the polyolefin fiber comprising the polymeric structures.

公开(公告)号：US12152318B2

公开(公告)日：2024-11-26

申请号：US17237743

申请日：2021-04-22

Applicant: Polytex Sportbelage Produktions-GmbH

Inventor： Stephan Sick ,  Dirk Sander ,  Bernd Jansen

IPC: D01F6/46 ,  D01F1/02 ,  D01F1/04 ,  D01F1/06 ,  D01F8/06 ,  D01F8/12 ,  D06N7/00 ,  E01C13/08

Abstract: A method for manufacturing an artificial turf fiber includes creating a polymer mixture that includes, 60-99% by weight of an LLDPE polymer and 1-15% by weight of an LDPE polymer. The method further includes extruding the polymer mixture into a monofilament; quenching the monofilament; reheating the monofilament; and stretching the reheated monofilament to form the monofilament into the artificial turf fiber.

公开(公告)号：US20240337046A1

公开(公告)日：2024-10-10

申请号：US18541558

申请日：2023-12-15

Applicant: REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： Henry A. Sodano ,  Hyun Chan Kim

IPC: D01D5/06 ,  D01D5/14 ,  D01D10/02 ,  D01D10/06 ,  D01F1/02 ,  D01F6/60

CPC classification number: D01D5/06 ,  D01D5/14 ,  D01D10/02 ,  D01D10/06 ,  D01F1/02 ,  D01F6/605 ,  D10B2331/021

Abstract: The disclosure relates to a method for forming nanofiber-assembled filaments in which an aromatic polyamide nanofiber suspension is first formed into wet nanofiber-assembled filaments via wet-spinning and protonation in a coagulation medium including at least one proton donor along with a non-solvent for the aromatic polyamide. The wet nanofiber-assembled filaments are then drawn to reduce/remove voids in the nanofiber-assembled filaments and improve the mechanical properties of the assembled filaments. The method can be used as a recycling method for used aromatic polyamide fiber/filament materials in which the recycled filaments have high/good mechanical properties relative to virgin filament materials.

公开(公告)号：US20240216571A1

公开(公告)日：2024-07-04

申请号：US18415412

申请日：2024-01-17

Applicant: Tricol Biomedical, Inc.

Inventor： Brian Clare ,  Radim Dvorák ,  Simon McCarthy ,  Jirí Machát

IPC: A61L15/28 ,  A61L15/42 ,  A61L24/00 ,  A61L24/08 ,  A61L27/20 ,  A61L27/50 ,  A61L27/56 ,  D01D1/02 ,  D01D5/08 ,  D01D5/084 ,  D01D5/18 ,  D01D10/02 ,  D01F1/02 ,  D01F9/00

CPC classification number: A61L15/28 ,  A61L15/425 ,  A61L24/0036 ,  A61L24/08 ,  A61L27/20 ,  A61L27/50 ,  A61L27/56 ,  D01D5/08 ,  D01D5/084 ,  D01D5/18 ,  D01F9/00 ,  A61L2400/04 ,  A61L2430/00 ,  D01D1/02 ,  D01D10/02 ,  D01F1/02

Abstract: The present chitosan-based superfine fiber invention relates to compositions, formulations, and processes that result in numerous significant advantages for the production and use of superfine fiber bioactive matrices in biomedical applications. The present invention relates to superfine, chitosan-based fibers, wherein the chitosan-based fibers have a percentage chitosan content of at least about 20% w/w, and highly conformable and compliant matrices comprising such fibers, processes for their production, and related formulations. The superfine chitosan-based fibers of the invention preferably include microfibers with diameter less than or equal to about 10 microns and micron and submicron fibers that are about 2 microns and less.

公开(公告)号：US20240110048A1

公开(公告)日：2024-04-04

申请号：US18374226

申请日：2023-09-28

Applicant: FINA TECHNOLOGY, INC.

Inventor： Likuo Sun ,  John Bieser ,  LuAnn Kelly

IPC: C08L23/12 ,  C08J3/00 ,  D01D5/08 ,  D01F1/02 ,  D01F6/06

CPC classification number: C08L23/12 ,  C08J3/005 ,  D01D5/08 ,  D01F1/02 ,  D01F6/06 ,  C08J2323/12 ,  C08J2423/12 ,  C08L2205/025 ,  C08L2205/16 ,  D10B2321/022 ,  D10B2401/063

Abstract: Disclosed is a polymeric blend and a method of making and using the same. The polymeric blend includes 75 wt. % to 99 wt. % of a first polypropylene composition comprising polypropylene and having a melt flow rate (MFR) of A g/10 min as measured by ASTM D1238 (230° C./2.16 kg), wherein the first polypropylene composition has been previously extruded prior to forming the blend, and 1 wt. % to 25 wt. % of a second polypropylene composition comprising polypropylene and an organic peroxide and having a MFR of B g/10 min as measured by ASTM D1238 (230° C./2.16 kg), wherein the second polypropylene composition has been previously extruded prior to forming the blend, wherein the polymeric blend has a MFR of C g/10 min as measured by ASTM D1238 (230° C./2.16 kg), and wherein C is greater than A.

公开(公告)号：US20240084507A1

公开(公告)日：2024-03-14

申请号：US18263962

申请日：2023-03-20

Applicant: XINXIANG CHEMICAL FIBRE CO., LTD.

Inventor： Yijie XIE ,  Changjin SHAO ,  Zhengfeng ZHANG ,  Faquan YAO ,  Shanjing XING ,  Junjiang XIAO ,  Yijie HU ,  Kun DING

IPC: D21C3/00 ,  D01D1/02 ,  D01F1/02 ,  D01F2/00 ,  D21B1/02 ,  D21C3/02 ,  D21C3/22 ,  D21C9/14 ,  D21C9/16 ,  D21H11/12

CPC classification number: D21C3/003 ,  D01D1/02 ,  D01F1/02 ,  D01F2/00 ,  D21B1/023 ,  D21C3/02 ,  D21C3/222 ,  D21C9/14 ,  D21C9/163 ,  D21H11/12 ,  D10B2201/01

Abstract: Disclosed are a pulp for Juncao spinning and a preparation method and use thereof. The method includes: placing a Juncao in a solution prepared from a lye, a catalyst, and an auxiliary agent and cooking to obtain a cooked solution, and then subjecting the cooked solution to pulping to obtain the pulp for Juncao spinning.

公开(公告)号：US20240052526A1

公开(公告)日：2024-02-15

申请号：US18233057

申请日：2023-08-11

Applicant: Aquapak IP Limited

Inventor： John Williams ,  Sian Griffiths ,  Robert Ashworth ,  Jack Eaton

IPC: D01F6/14 ,  C08L29/04 ,  D01D5/098 ,  D01F1/02 ,  D02G1/14 ,  D04H1/4258 ,  D04H1/4309 ,  D04H1/435 ,  D04H1/4291 ,  D04H1/492 ,  D04H1/46 ,  D04H1/58 ,  D04H1/425 ,  D04H1/4382

CPC classification number: D01F6/14 ,  C08L29/04 ,  D01D5/0985 ,  D01F1/02 ,  D02G1/14 ,  D04H1/4258 ,  D04H1/4309 ,  D04H1/435 ,  D04H1/4291 ,  D04H1/492 ,  D04H1/46 ,  D04H1/58 ,  D04H1/425 ,  D04H1/43835 ,  C08L2205/02 ,  C08L2203/12 ,  D10B2321/06 ,  D10B2509/026 ,  D10B2401/063

Abstract: This invention relates to polyvinyl alcohol fibers, methods of making polyvinyl alcohol fibers and products manufactured from polyvinyl alcohol fibers. The invention relates particularly but not exclusively to products comprising non-woven polyvinyl alcohol fibers, methods of making non-woven polyvinyl alcohol fibers and products incorporating such fibers.

公开(公告)号：US11890384B2

公开(公告)日：2024-02-06

申请号：US15431168

申请日：2017-02-13

Applicant: Tricol Biomedical, Inc.

Inventor： Brian Clare ,  Radim Dvo{hacek over (r)}ák ,  Simon McCarthy ,  Jiri Machát

IPC: A61L15/28 ,  A61L15/42 ,  D01D5/18 ,  A61L27/50 ,  A61L27/56 ,  A61L24/08 ,  A61L27/20 ,  A61L24/00 ,  D01F9/00 ,  D01D5/08 ,  D01D5/084 ,  D01F1/02 ,  D01D10/02 ,  D01D1/02

CPC classification number: A61L15/28 ,  A61L15/425 ,  A61L24/0036 ,  A61L24/08 ,  A61L27/20 ,  A61L27/50 ,  A61L27/56 ,  D01D5/08 ,  D01D5/084 ,  D01D5/18 ,  D01F9/00 ,  A61L2400/04 ,  A61L2430/00 ,  D01D1/02 ,  D01D10/02 ,  D01F1/02 ,  A61L15/28 ,  C08L5/08 ,  A61L24/08 ,  C08L5/08 ,  A61L27/20 ,  C08L5/08

Abstract: The present chitosan-based superfine fiber invention relates to compositions, formulations, and processes that result in numerous significant advantages for the production and use of superfine fiber bioactive matrices in biomedical applications. The present invention relates to superfine, chitosan-based fibers, wherein the chitosan-based fibers have a percentage chitosan content of at least about 20% w/w, and highly conformable and compliant matrices comprising such fibers, processes for their production, and related formulations. The superfine chitosan-based fibers of the invention preferably include microfibers with diameter less than or equal to about 10 microns and micron and submicron fibers that are about 2 microns and less.

公开(公告)号：US11668024B2

公开(公告)日：2023-06-06

申请号：US16740106

申请日：2020-01-10

Applicant: SPIBER INC.

Inventor： Kana Ishida ,  Hironori Yamamoto ,  Hiroaki Suzumura ,  Kazuhide Sekiyama

IPC: D01F4/02 ,  D01C3/00 ,  C07K14/435 ,  D01F1/02

CPC classification number: D01F4/02 ,  C07K14/435 ,  C07K14/43518 ,  D01C3/00 ,  D01F1/02

Abstract: A polar solvent solution of the present invention is a polar solvent solution in which a solute containing a polyamine acid is dissolved in a polar solvent. The solution has a moisture content of less than 5 mass % based on 100 mass % of the solution. A method for producing a polar solvent solution of the present invention includes changing a moisture content of the solution to adjust the viscosity of the solution. Further, another method for producing a polar solvent solution includes reducing a moisture content of the solution to increase the viscosity of the solution. Thus, the present invention provides a polar solvent solution that enables stable spinning and casting without lowering its viscosity when used as dopes for spinning, film, etc., and methods for producing the same.

公开(公告)号：US20220411969A1

公开(公告)日：2022-12-29

申请号：US17775670

申请日：2020-12-02

Applicant: FIBERVISIONS LP

Inventor： Søren STAAL ,  Søren KLINT ,  Prashant DESAI

IPC: D01F8/06 ,  D01F1/02 ,  D01D1/04

Abstract: A representative fiber incorporates: a low melting polyolefin material forming a matrix; and a polymer or copolymer suspended in the matrix as particles of the polymer or copolymer, the particles of the polymer or copolymer exhibiting increased hardness and stiffness compared to the low melting polyolefin material; wherein the polymer or copolymer is immiscible with the low melting polyolefin.