US5089360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-strength non-woven fabric, method of producing same and battery separator constituted thereby
Assignee: Tonen Chemical Corp
•
Filing: 1991-02-07
•
Granted: 1992-02-18
•
Expires: 2011-02-07
Abstract
Abstract The high-strength non-woven fabric comprises 100 parts by weight of a non-woven fabric having an apparent fiber diameter of 0.1-15 μm; and 0.3-10 parts by weight of an N-methylol or N-alkoxymethyl nylon resin applied to the non-woven fabric, the N-methylol or N-alkoxymethyol nylon resin being cross-linked. The high-strength non-woven fabric has high mechanical strength with small maximum pore diameter. It is suitable for battery separators.
Inventors
- 👤 Tomoaki Kanno
- 👤 Yoshihisa Matsushima
- 👤 Makoto Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:50
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/005; D04H3/009; D04H3/011; D04H1/00; D04H1/40; D04H1/42; D04H1/4382; D04H1/43838; D04H1/54; D04H1/56; D04H1/58; D04H1/587; D04H1/64; D04H1/70; D04H1/72; D04H1/724; D04H3/08; D04H3/12; D04H3/16; Y; Y10; Y10T; Y10T442/00; Y10T442/60; Y10T442/68
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
46 words
A high-strength non-woven fabric comprising 100 parts by weight of a non-woven fabric having an apparent fiber diameter of 0.1-15 μm; and 0.3-10 parts by weight of an N-methylol or N-alkoxymethyl nylon resin applied to said non-woven fabric, said N-methylol or N-alkoxymethyl nylon resin being cross-linked.
Claim 2
Dependent Claim
46 words
A high-strength non-woven fabric comprising 100 parts by weight of a non-woven fabric having an apparent fiber diameter of 0.1-15 μm; and 0.3-10 parts by weight of an N-methylol or N-alkoxymethyl nylon resin applied to said non-woven fabric, said N-methylol or N-alkoxymethyl nylon resin being cross-linked.
Claim 3
Dependent Claim
23 words
The high-strength non-woven fabric according to claim 1, wherein said N-methylol or N-alkoxymethyl nylon resin is one modified with a hydrophilic vinyl monomer.
Claim 4
Dependent Claim
18 words
The high-strength non-woven fabric according to claim 1, wherein said non-woven fabric is made of a polyamide resin.
Claim 5
Dependent Claim
19 words
The high-strength non-woven fabric according to claim 1, wherein said non-woven fabric is produced by a melt blowing method.
Claim 6
Independent Claim
55 words
A method of producing a high-strength non-woven fabric comprising the steps of applying 0.3-10 parts by weight of an N-methylol or N-alkoxymethyl nylon resin in a solution state to 100 parts by weight of a non-woven fabric having an apparent fiber diameter of 0.1-15 μm; and drying and cross-linking said N-methylol or N-alkoxymethyl nylon resin.
Claim 7
Independent Claim
55 words
A method of producing a high-strength non-woven fabric comprising the steps of applying 0.3-10 parts by weight of an N-methylol or N-alkoxymethyl nylon resin in a solution state to 100 parts by weight of a non-woven fabric having an apparent fiber diameter of 0.1-15 μm; and drying and cross-linking said N-methylol or N-alkoxymethyl nylon resin.
Claim 8
Dependent Claim
26 words
The method according to claim 5, wherein the drying and cross-linking of said N-methylol or N-alkoxymethyl nylon resin is conducted at a temperature of 70°-200° C.
Claim 9
Dependent Claim
51 words
A battery separator constituted by a high-strength non-woven fabric comprising 100 parts by weight of a non-woven fabric having an apparent fiber diameter of 0.1-15 μm; and 0.3-10 parts by weight of an N-methylol or N-alkoxymethyl nylon resin applied to said non-woven fabric, said N-methylol or N-alkoxymethyl nylon resin being cross-linked.
Claim 10
Dependent Claim
51 words
A battery separator constituted by a high-strength non-woven fabric comprising 100 parts by weight of a non-woven fabric having an apparent fiber diameter of 0.1-15 μm; and 0.3-10 parts by weight of an N-methylol or N-alkoxymethyl nylon resin applied to said non-woven fabric, said N-methylol or N-alkoxymethyl nylon resin being cross-linked.
Claim 11
Dependent Claim
22 words
The battery separator according to claim 7, wherein said N-methylol or N-alkoxymethyl nylon resin is one modified with a hydrophilic vinyl monomer.
Claim 12
Dependent Claim
17 words
The battery separator according to claim 7, wherein said non-woven fabric is made of a polyamide resin.
Claim 13
Dependent Claim
18 words
The battery separator according to claim 7, wherein said non-woven fabric is produced by a melt blowing method.
References Cited (Backward Citations)
US3914501A
Cited
US4315062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-17 | 1995-08-19 | 1996-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-17 | 1999-08-19 | 2000-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-17 | 2003-08-19 | 2004-02-18 | $7700.00 | Window Closed / Lapsed |