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Nonwoven Fabric And Air Filter Material Including The Same

Abstract: The present invention addresses the problem of providing: an electret nonwoven fabric that has high collection efficiency, low pressure loss, and high strength as a result of using fine fibers and by controlling the fusing between the fibers; and an air-filter filtering material using the same. This nonwoven fabric is characterized in that: the fibers constituting the fabric are made of a thermoplastic resin; the fibers include at least a first component and a second component; the first component and/or the second component contains a crystal nucleating agent; the difference in the crystallization start temperature between the first component and the second component is 5°C or greater; and at least a portion of the first component and the second component is exposed on the surface of the fibers.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
07 September 2020
Publication Number
39/2020
Publication Type
INA
Invention Field
TEXTILE
Status
Email
patent@depenning.com
Parent Application
Patent Number
Legal Status
Grant Date
2023-12-29
Renewal Date

Applicants

TORAY INDUSTRIES, INC.
1-1, Nihonbashi-Muromachi 2-chome, Chuo-ku, Tokyo 1038666

Inventors

1. HAYASHI, Shingo
c/o Shiga Plant, Toray Industries, Inc., 1-1, Sonoyama 1-chome, Otsu-shi, Shiga 5208558
2. INABA, Sachio
c/o Shiga Plant, Toray Industries, Inc., 1-1, Sonoyama 1-chome, Otsu-shi, Shiga 5208558
3. HANE, Ryoichi
c/o Shiga Plant, Toray Industries, Inc., 1-1, Sonoyama 1-chome, Otsu-shi, Shiga 5208558

Specification

Documents

Application Documents

# Name Date
1 202047038554-STATEMENT OF UNDERTAKING (FORM 3) [07-09-2020(online)].pdf 2020-09-07
2 202047038554-PROOF OF RIGHT [07-09-2020(online)].pdf 2020-09-07
3 202047038554-PRIORITY DOCUMENTS [07-09-2020(online)].pdf 2020-09-07
4 202047038554-FORM 1 [07-09-2020(online)].pdf 2020-09-07
5 202047038554-DRAWINGS [07-09-2020(online)].pdf 2020-09-07
6 202047038554-DECLARATION OF INVENTORSHIP (FORM 5) [07-09-2020(online)].pdf 2020-09-07
7 202047038554-COMPLETE SPECIFICATION [07-09-2020(online)].pdf 2020-09-07
8 202047038554-FORM-26 [14-09-2020(online)].pdf 2020-09-14
9 202047038554-FORM 3 [15-09-2020(online)].pdf 2020-09-15
10 Abstract 202047038554.jpg 2021-10-18
11 202047038554.pdf 2021-10-18
12 202047038554-FORM 18 [10-01-2022(online)].pdf 2022-01-10
13 202047038554-FORM 3 [11-01-2022(online)].pdf 2022-01-11
14 202047038554-FER.pdf 2022-04-21
15 202047038554-Correspondence_GPA_04-08-2022.pdf 2022-08-04
16 202047038554-OTHERS [06-10-2022(online)].pdf 2022-10-06
17 202047038554-FORM 3 [06-10-2022(online)].pdf 2022-10-06
18 202047038554-FER_SER_REPLY [06-10-2022(online)].pdf 2022-10-06
19 202047038554-DRAWING [06-10-2022(online)].pdf 2022-10-06
20 202047038554-COMPLETE SPECIFICATION [06-10-2022(online)].pdf 2022-10-06
21 202047038554-CLAIMS [06-10-2022(online)].pdf 2022-10-06
22 202047038554-FORM-26 [07-10-2022(online)].pdf 2022-10-07
23 202047038554-FORM 3 [13-06-2023(online)].pdf 2023-06-13
24 202047038554-PatentCertificate29-12-2023.pdf 2023-12-29
25 202047038554-IntimationOfGrant29-12-2023.pdf 2023-12-29
26 202047038554-FORM 3 [02-04-2024(online)].pdf 2024-04-02

Search Strategy

1 8554E_20-04-2022.pdf

ERegister / Renewals

3rd: 19 Jan 2024

From 25/01/2021 - To 25/01/2022

4th: 19 Jan 2024

From 25/01/2022 - To 25/01/2023

5th: 19 Jan 2024

From 25/01/2023 - To 25/01/2024

6th: 19 Jan 2024

From 25/01/2024 - To 25/01/2025

7th: 09 Dec 2024

From 25/01/2025 - To 25/01/2026