US4547423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile for clothes
Assignee: Asahi Kasei Corp
•
Filing: 1983-07-14
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Granted: 1985-10-15
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Expires: 2003-07-14
Abstract
Abstract A material for clothes is disclosed which is formed of a base cloth and a porous film having a number of very fine pores and coated on at least one surface of the base cloth. In this case, the pores are made to have a diameter about 0.1 to 5 μm and the material has the percentage of dust permeation less than 50% for the dust with size larger than 0.3 μm and moisture permeability more than 2500 g/m 2 /24 hrs.
Inventors
- 👤 Akira Kojima
- 👤 Saburo Yoshida
- 👤 Yoshio Yamada
- 👤 Seiji Shioda
- 👤 Kazumi Isoshima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:47
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; A; A41; A41D; A41D31/00; A41D31/04; A41D31/10; B32B27/40; B32B5/00; B32B5/18; B32B5/22; B32B5/24; B32B5/245; B32B7/00; B32B7/04; B32B7/06; D; D06; D06N; D06N3/00; D06N3/04; D06N3/047; D06N3/10; D06N3/106; D06N3/12; D06N3/128; D06N3/14; B32B2305/00; B32B2305/02; B32B2305/026; B32B2307/00; B32B2307/20; B32B2307/202; B32B2307/21; B32B2307/70; B32B2307/726; B32B2307/73; B32B2309/00; B32B2309/60; B32B2309/65; B32B2437/00; D06N2209/00; D06N2209/12; D06N2209/126; D06N2209/128; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10S428/922; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249978; Y10T428/24998; Y10T428/249986
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
87 words
A material for clothes comprising: a base cloth; and a porous film having a number of very fine pores and formed on at least one surface of said base cloth, said pores being made to have a diameter about 0.1 to 5 μm, said material having a percentage of dust permeation less than 50% for a dust with a size larger than 0.3 μm, a moisture permeability more than 2500 g/m 2 /24 hrs, and having means incorporated therein for preventing said material from being electrically charged.
Claim 2
Dependent Claim
87 words
A material for clothes comprising: a base cloth; and a porous film having a number of very fine pores and formed on at least one surface of said base cloth, said pores being made to have a diameter about 0.1 to 5 μm, said material having a percentage of dust permeation less than 50% for a dust with a size larger than 0.3 μm, a moisture permeability more than 2500 g/m 2 /24 hrs, and having means incorporated therein for preventing said material from being electrically charged.
Claim 3
Dependent Claim
16 words
A material for clothes as claimed in claim 1, in the form of dust-free working wear.
Claim 4
Dependent Claim
23 words
A material for clothes as claimed in claim 1, wherein said means is a conductive yarn which is woven in said base cloth.
Claim 5
Dependent Claim
23 words
A material for clothes as claimed in claim 1, wherein said means is a conductive substance mixed into elastomer forming said porous film.
Claim 6
Dependent Claim
28 words
A material for clothes as claimed in claim 1, wherein said means is an antistatic agent which is coated on at least one surface of said base cloth.
Claim 7
Dependent Claim
21 words
A material for clothes as claimed in claim 1, wherein said material for clothes is provided with means for providing water-repellency.
Claim 8
Dependent Claim
26 words
A material for clothes as claimed in claim 6, wherein said means for providing water-repellency is coated on at least one surface of said base cloth.
Claim 9
Dependent Claim
21 words
A material for clothes as claimed in claim 6, wherein said means for providing water-repellency is coated on said porous film.
Claim 10
Dependent Claim
21 words
A material for clothes as claimed in claim 6, wherein said means for providing water-repellency is made of silicone water-repellent agent.
Claim 11
Dependent Claim
21 words
A material for clothes as claimed in claim 6, wherein said means for providing water-repellency is made of fluorine-based water-repellent agent.
Claim 12
Dependent Claim
24 words
A material for clothes according to claim 1 wherein said means is sufficient to suppress voltage caused by frictional electricity to below 1000 volts.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-14 | 1989-04-15 | 1989-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-14 | 1993-04-15 | 1993-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-14 | 1997-04-15 | 1997-10-15 | $7700.00 | Window Closed / Lapsed |