公开(公告)号：US20230026227A1

公开(公告)日：2023-01-26

申请号：US17786166

申请日：2020-12-23

Applicant: Toray Industries, Inc.

Inventor： Yuki Ikejiri ,  Jun Yoshida ,  Koji Kitamura

IPC: B01D39/16 ,  B01D46/52 ,  B01D46/54 ,  B01D46/71 ,  B32B5/02 ,  B32B27/12 ,  B32B27/32 ,  D04H3/16 ,  D04H3/147

Abstract: A spunbond non-woven fabric includes a nonbonded projected part and a bonded recessed part. Bending resistance in a machine direction of the spunbond non-woven fabric is 20 mN or more and 40 mN or less, and in a non-woven fabric cross-section, a thickness from one surface to another surface of the projected part is determined to be tA, a thickness from one surface to another surface of the recessed part is determined to be tB, and respective distances from one surface of the projected part to one surface of the recessed part are determined to be tC and to (tC

公开(公告)号：US11441260B2

公开(公告)日：2022-09-13

申请号：US16497206

申请日：2018-03-27

Applicant: Toray Industries, Inc.

Inventor： Takanori Furui ,  Makoto Kaneko ,  Ryuji Shikuri ,  Gen Koide ,  Hirohito Yamamoto ,  Makoto Nishimura ,  Jun Yoshida

IPC: D06M15/564 ,  B32B5/02 ,  B32B5/26 ,  C08J5/04 ,  C08L67/02 ,  C08L75/04 ,  D06M101/32

Abstract: The present invention provides a sheet-like material in which a plant-derived raw material of low environmental impact is used. The invention also provides a sheet-like material that ideally has a uniform and refined nap and a sheet-like material that is strong, has excellent shape stability, is lightweight and is very pliable. This sheet-like material is characterized in being made of nonwoven fabric that is made of polyester microfiber containing a 1,2-propanediol-derived component in an amount prescribed in the present application and a polyurethane elastomer resin containing structural monomers prescribed in the present application. This sheet-like material is also made of a base sheet, in which a nonwoven fabric that has microfibers as the main component is laminated and unified with a woven or knitted material, and an elastomer resin, and is characterized in that the woven or knitted material is configured from fibers containing polyester as the main component and that 1-500 ppm of a 1,2-propanediol-derived component are contained in the polyester.

公开(公告)号：US12246276B2

公开(公告)日：2025-03-11

申请号：US17787423

申请日：2020-12-23

Applicant: Toray Industries, Inc.

Inventor： Yuki Ikejiri ,  Jun Yoshida ,  Koji Kitamura

IPC: B01D39/16 ,  B01D46/52 ,  D04H3/011 ,  D04H3/147

Abstract: A spunbond non-woven fabric includes a thermoplastic continuous filament. Bending resistance in a machine direction of the spunbond non-woven fabric is 40 mN or more and 80 mN or less, the spunbond non-woven fabric includes a nonbonded projected part and a bonded recessed part, and in a non-woven fabric cross-section, a thickness from one surface to another surface of the projected part is determined to be tA, a thickness from one surface to another surface of the recessed part is determined to be tB, and respective distances from one surface of the projected part to one surface of the recessed part are determined to be tC and tD (tC

公开(公告)号：US20230046361A1

公开(公告)日：2023-02-16

申请号：US17787423

申请日：2020-12-23

Applicant: Toray Industries, Inc.

Inventor： Yuki Ikejiri ,  Jun Yoshida ,  Koji Kitamura

IPC: B01D39/16 ,  D04H3/147 ,  B01D46/52 ,  D04H3/011

Abstract: A spunbond non-woven fabric includes a thermoplastic continuous filament. Bending resistance in a machine direction of the spunbond non-woven fabric is 40 mN or more and 80 mN or less, the spunbond non-woven fabric includes a nonbonded projected part and a bonded recessed part, and in a non-woven fabric cross-section, a thickness from one surface to another surface of the projected part is determined to be tA, a thickness from one surface to another surface of the recessed part is determined to be tB, and respective distances from one surface of the projected part to one surface of the recessed part are determined to be tC and tD (tC

公开(公告)号：US20220410046A1

公开(公告)日：2022-12-29

申请号：US17787646

申请日：2020-12-23

Applicant: Toray Industries, Inc.

Inventor： Shinobu Mizogami ,  Jun Yoshida ,  Koji Kitamura

IPC: B01D39/16 ,  D04H3/147 ,  B01D46/52

Abstract: A spunbond non-woven fabric includes a thermoplastic continuous filament. A CV value of air permeability of the non-woven fabric is 15% or less, bending resistance in a machine direction of the non-woven fabric is 40 mN or more and 80 mN or less, the non-woven fabric includes a projected part and a recessed part, and in a non-woven fabric cross-section, a thickness from one surface to another surface of the projected part is determined to be tA, a thickness from one surface to another surface of the recessed part is determined to be tB, and respective distances from one surface of the projected part to one surface of the recessed part are determined to be tC and tD (tC

公开(公告)号：US20200095725A1

公开(公告)日：2020-03-26

申请号：US16497206

申请日：2018-03-27

Applicant: Toray Industries, Inc.

Inventor： Takanori Furui ,  Makoto Kaneko ,  Ryuji Shikuri ,  Gen Koide ,  Hirohito Yamamoto ,  Makoto Nishimura ,  Jun Yoshida

IPC: D06M15/564 ,  C08J5/04 ,  C08L75/04 ,  C08L67/02 ,  B32B5/26 ,  B32B5/02

Abstract: The present invention provides a sheet-like material in which a plant-derived raw material of low environmental impact is used. The invention also provides a sheet-like material that ideally has a uniform and refined nap and a sheet-like material that is strong, has excellent shape stability, is lightweight and is very pliable. This sheet-like material is characterized in being made of nonwoven fabric that is made of polyester microfiber containing a 1,2-propanediol-derived component in an amount prescribed in the present application and a polyurethane elastomer resin containing structural monomers prescribed in the present application. This sheet-like material is also made of a base sheet, in which a nonwoven fabric that has microfibers as the main component is laminated and unified with a woven or knitted material, and an elastomer resin, and is characterized in that the woven or knitted material is configured from fibers containing polyester as the main component and that 1-500 ppm of a 1,2-propanediol-derived component are contained in the polyester.

公开(公告)号：US20180056219A1

公开(公告)日：2018-03-01

申请号：US15561256

申请日：2016-03-25

Applicant: TORAY INDUSTRIES, INC.

Inventor： Jun Yoshida ,  Yasuhiro Asada ,  Kengo Miyoshi

IPC: B01D39/16 ,  C09J9/00 ,  C09J5/06 ,  C09J123/06 ,  B03C3/28 ,  B01D46/00 ,  B32B5/26 ,  B32B5/02 ,  B32B7/12 ,  B32B37/12 ,  D04H1/58 ,  D04H1/542

CPC classification number: B01D39/1607 ,  A61L9/16 ,  B01D46/0001 ,  B01D46/0032 ,  B01D2239/0407 ,  B01D2239/0435 ,  B01D2239/0457 ,  B01D2239/065 ,  B01D2239/086 ,  B01D2239/10 ,  B01D2239/1241 ,  B03C3/28 ,  B32B5/022 ,  B32B5/26 ,  B32B7/12 ,  B32B37/1207 ,  B32B2037/1238 ,  C09J5/06 ,  C09J9/00 ,  C09J123/06 ,  C09J2423/04 ,  D04H1/542 ,  D04H1/58

Abstract: An object of the present invention is to provide an air filter medium which includes heat-expandable particles that, even when contained in a small amount, impart excellent flame retardancy to the air filter medium and which has excellent flame retardancy and a low pressure loss. The present invention provides an air filter medium including: a plurality of stacked fibrous sheets; and heat-expandable particles and a binder disposed in at least one of interlaminar spaces between adjacent layers of the fibrous sheets.

公开(公告)号：US11975281B2

公开(公告)日：2024-05-07

申请号：US17261352

申请日：2019-07-22

Applicant: TORAY Industries, Inc.

Inventor： Jun Yoshida ,  Koji Yamano ,  Yohei Nakano ,  Makoto Nishimura

IPC: B01D39/04 ,  B01D39/16 ,  D01F6/46 ,  D04H3/16 ,  D04H1/4382 ,  D04H3/007

CPC classification number: B01D39/163 ,  B01D39/04 ,  D01F6/46 ,  D04H3/16 ,  B01D2239/0627 ,  B01D2239/1233 ,  D04H1/43838 ,  D04H3/007

Abstract: The present invention is intended to provide a spunbond nonwoven fabric having low pressure loss, high collecting performance, and excellent processability and an air filter fabricated using the spunbond nonwoven fabric, the spunbond nonwoven fabric including fibers formed of a polyolefin-based resin, in which an average single fiber diameter of the fibers is 6.5 μm or more and 22.0 μm or less, a hindered amine-based compound represented by Formula (1) is contained at 0.1% by mass or more and 5% by mass or less, a melt flow rate (MFR) of the nonwoven fabric is 32 g/10 minutes or more and 850 g/10 minutes or less, and the nonwoven fabric is processed into an electret.