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Spun Bonded Nonwoven Fabric And Sanitary Material
Abstract: This spun-bonded nonwoven fabric comprises fibers which are formed of a resin composition that contains a propylene polymer (A) and at least one polymer (B) that is selected from the group consisting of polyolefins (excluding the propylene polymer (A)) and polyesters. The fibers have a sea-island structure. The fibers include those fibers wherein, among the island phases in a cross-section of each fiber, the cross-section being perpendicular to the axial direction of the fiber, the ratio of the island phases having a diameter less than 0.32 µm is 60% or more on a number basis. With respect to this spun-bonded nonwoven fabric, the ratio of the tensile strength (SMD) in the machine direction (MD) to the tensile strength (SCD) in a direction (CD) that is perpendicular to the machine direction (MD), namely SMD/SCD is from 2.0 to 5.1.
Notices, Deadlines & Correspondence
Patent Information
Applicants
MITSUI CHEMICALS, INC.
Inventors
1. SAITA, Shohei
2. ICHIKAWA, Taiichirou
3. KANAYA, Hirotaka
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202317067094-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [06-10-2023(online)].pdf | 2023-10-06 |
| 2 | 202317067094-STATEMENT OF UNDERTAKING (FORM 3) [06-10-2023(online)].pdf | 2023-10-06 |
| 3 | 202317067094-REQUEST FOR EXAMINATION (FORM-18) [06-10-2023(online)].pdf | 2023-10-06 |
| 4 | 202317067094-PROOF OF RIGHT [06-10-2023(online)].pdf | 2023-10-06 |
| 5 | 202317067094-PRIORITY DOCUMENTS [06-10-2023(online)].pdf | 2023-10-06 |
| 6 | 202317067094-POWER OF AUTHORITY [06-10-2023(online)].pdf | 2023-10-06 |
| 7 | 202317067094-FORM 18 [06-10-2023(online)].pdf | 2023-10-06 |
| 8 | 202317067094-FORM 1 [06-10-2023(online)].pdf | 2023-10-06 |
| 9 | 202317067094-DRAWINGS [06-10-2023(online)].pdf | 2023-10-06 |
| 10 | 202317067094-DECLARATION OF INVENTORSHIP (FORM 5) [06-10-2023(online)].pdf | 2023-10-06 |
| 11 | 202317067094-COMPLETE SPECIFICATION [06-10-2023(online)].pdf | 2023-10-06 |
| 12 | 202317067094-FORM 3 [20-11-2023(online)].pdf | 2023-11-20 |
| 13 | 202317067094-MARKED COPIES OF AMENDEMENTS [29-02-2024(online)].pdf | 2024-02-29 |
| 14 | 202317067094-FORM 13 [29-02-2024(online)].pdf | 2024-02-29 |
| 15 | 202317067094-AMMENDED DOCUMENTS [29-02-2024(online)].pdf | 2024-02-29 |
| 16 | 202317067094-PA [14-08-2024(online)].pdf | 2024-08-14 |
| 17 | 202317067094-ASSIGNMENT DOCUMENTS [14-08-2024(online)].pdf | 2024-08-14 |
| 18 | 202317067094-8(i)-Substitution-Change Of Applicant - Form 6 [14-08-2024(online)].pdf | 2024-08-14 |
| 19 | 202317067094-Response to office action [30-05-2025(online)].pdf | 2025-05-30 |