Electret Melt Blown Non Woven Fabric, Filter Material And Air Filter

Electret Melt Blown Non Woven Fabric, Filter Material And Air Filter Obtained Using Same, And Method For Producing Electret Melt Blown Non Woven Fabric

Abstract: The present invention addresses the problem of providing: an electret melt-blown non-woven fabric which has high trapping efficiency and low pressure loss; and a filter material and an air filter obtained using same. This electret melt-blown non-woven fabric is constituted from polyolefin-based resin fibers, wherein the non-woven fabric contains: 0.1-5.0 mass% of a hindered amine-based compound; and 0.01-1 mass% of one or more types of metal oxide particle which are constituted from oxides of metallic elements selected from among copper, cobalt, aluminum, nickel, zinc, palladium, molybdenum and tungsten, and which have an average particle diameter of 500 nm or less.

Patent Information

Application #

Filing Date

27 July 2022

Publication Number

31/2022

Publication Type

INA

Invention Field

TEXTILE

Status

Email

patent@depenning.com

Parent Application

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	202247042902.pdf	2022-07-27
2	202247042902-STATEMENT OF UNDERTAKING (FORM 3) [27-07-2022(online)].pdf	2022-07-27
3	202247042902-PROOF OF RIGHT [27-07-2022(online)].pdf	2022-07-27
4	202247042902-PRIORITY DOCUMENTS [27-07-2022(online)].pdf	2022-07-27
5	202247042902-FORM 1 [27-07-2022(online)].pdf	2022-07-27
6	202247042902-DRAWINGS [27-07-2022(online)].pdf	2022-07-27
7	202247042902-DECLARATION OF INVENTORSHIP (FORM 5) [27-07-2022(online)].pdf	2022-07-27
8	202247042902-COMPLETE SPECIFICATION [27-07-2022(online)].pdf	2022-07-27
9	202247042902-FORM-26 [28-11-2022(online)].pdf	2022-11-28
10	202247042902-Correspondence_Form1_GPA_20-12-2022.pdf	2022-12-20
11	202247042902-FORM 3 [26-12-2022(online)].pdf	2022-12-26
12	202247042902-FORM 3 [08-06-2023(online)].pdf	2023-06-08
13	202247042902-RELEVANT DOCUMENTS [15-11-2023(online)].pdf	2023-11-15
14	202247042902-MARKED COPIES OF AMENDEMENTS [15-11-2023(online)].pdf	2023-11-15
15	202247042902-FORM 18 [15-11-2023(online)].pdf	2023-11-15
16	202247042902-FORM 13 [15-11-2023(online)].pdf	2023-11-15
17	202247042902-AMMENDED DOCUMENTS [15-11-2023(online)].pdf	2023-11-15