Patent US4368227A successfully refreshed from Google Patents.
US4368227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suede-like sheet materials of ultrafine fibers
Assignee: Mitsubishi Chemical Corp
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Filing: 1980-04-04
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Granted: 1983-01-11
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Expires: 2000-04-04
Abstract
Abstract A suede-like sheet material characterized by being formed of a base cloth and ultrafine fibers of a denier less than 0.5 per filament, said ultrafine fibers being entangled with each other and covering at least one surface of the base cloth, wherein a portion of said ultrafine fibers is stuffed into the gaps in the network of the base cloth, at least a portion of said ultrafine fibers being entangled with the component fibers of the base cloth, and said base cloth and ultrafine fibers being substantially integrated with each other.
Inventors
- 👤 Takashi Setsuie
- 👤 Koji Mimura
- 👤 Kiyonobu Okamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:20
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; B32B5/02; B32B5/022; B32B5/024; B32B5/026; B32B5/06; D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4382; D04H1/43825; D04H1/43828; D04H1/43838; D04H1/44; D04H1/46; D04H1/48; D04H1/49; D04H1/492; D06; D06N; D06N3/00; D06N3/0002; D06N3/0004; B32B2250/00; B32B2250/20; B32B2262/00; B32B2262/02; B32B2262/0276; B32B2307/00; B32B2307/50; B32B2307/51; B32B2307/54; B32B2307/546; B32B2307/70; B32B2307/718; B32B2307/732; B32B2307/734; B32B2307/736; Y; Y10; Y10S; Y10S428/00; Y10S428/903; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23943; Y10T428/2395; Y10T442/00; Y10T442/30; Y10T442/3707; Y10T442/3772
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
68 words
A suede-like sheet material produced by a process, comprising: forming a composite layer material by depositing a web consisting of ultrafine fibers of less than 0.5 denier per filament on a base cloth of a knitted fabric or a woven fabric; and expelling a fine liquid stream jet under high pressure onto the surface of the ultrafine fiber web thereby substantially integrating ultrafine fibers with the base cloth.
Claim 2
Dependent Claim
68 words
A suede-like sheet material produced by a process, comprising: forming a composite layer material by depositing a web consisting of ultrafine fibers of less than 0.5 denier per filament on a base cloth of a knitted fabric or a woven fabric; and expelling a fine liquid stream jet under high pressure onto the surface of the ultrafine fiber web thereby substantially integrating ultrafine fibers with the base cloth.
Claim 3
Dependent Claim
23 words
The suede-like sheet material of claim 1, wherein the pressure of said fine liquid stream jet is 5 to 100 kg/cm 2 .
Claim 4
Dependent Claim
19 words
The suede-like sheet material of claim 1, wherein the length of said ultrafine fibers is 1 to 5 mm.
Claim 5
Dependent Claim
20 words
The suede-like sheet material of claim 1, wherein the thickness of said sheet material ranges from 0.4 to 1.0 mm.
Claim 6
Dependent Claim
23 words
The suede-like sheet material of claim 1, wherein said base cloth is formed of fibers having a latent shrinkage of more than 10%.
Claim 7
Dependent Claim
94 words
A suede-like sheet material produced by a process, comprising: forming a composite layer material by depositing a web consisting of ultrafine fibers of less than 0.5 denier per filament on a base cloth of a knitted fabric or a woven fabric; expelling a fine liquid stream jet under high pressure onto the surface of the ultrafine fiber web thereby substantially integrating ultrafine fibers with the base cloth; and then impregnating the sheet with an elastic polymer in an amount less than 50% based on the total weight of the base cloth and ultrafine fibers.
Claim 8
Dependent Claim
94 words
A suede-like sheet material produced by a process, comprising: forming a composite layer material by depositing a web consisting of ultrafine fibers of less than 0.5 denier per filament on a base cloth of a knitted fabric or a woven fabric; expelling a fine liquid stream jet under high pressure onto the surface of the ultrafine fiber web thereby substantially integrating ultrafine fibers with the base cloth; and then impregnating the sheet with an elastic polymer in an amount less than 50% based on the total weight of the base cloth and ultrafine fibers.
Claim 9
Dependent Claim
23 words
The suede-like sheet material of claim 6, wherein the pressure of the fine liquid stream jet is 5 to 1000 kg/cm 2 .
Claim 10
Dependent Claim
19 words
The suede-like sheet material of claim 6, wherein the length of said ultrafine fibers is 1 to 5 mm.
Claim 11
Dependent Claim
20 words
The suede-like sheet material of claim 6, wherein the thickness of said sheet material ranges from 0.4 to 1.0 mm.
Claim 12
Dependent Claim
23 words
The suede-like sheet material of claim 6, wherein said base cloth is formed of fibers having a latent shrinkage of more than 10%.
Claim 13
Dependent Claim
84 words
A suede-like sheet material having a thickness and specific volume respectively of 0.4 to 1.0 mm and 2.0 to 3.5 cm 2 /g respectively, comprising: forming a composite layer material by depositing a web consisting of ultrafine fibers of less than 0.5 denier per filament on a base cloth of a knitted fabric or a woven fabric; and expelling a fine liquid stream jet under high pressure onto the surface of the ultrafine fiber web thereby substantially integrating ultrafine fibers with the base cloth.
Claim 14
Dependent Claim
84 words
A suede-like sheet material having a thickness and specific volume respectively of 0.4 to 1.0 mm and 2.0 to 3.5 cm 2 /g respectively, comprising: forming a composite layer material by depositing a web consisting of ultrafine fibers of less than 0.5 denier per filament on a base cloth of a knitted fabric or a woven fabric; and expelling a fine liquid stream jet under high pressure onto the surface of the ultrafine fiber web thereby substantially integrating ultrafine fibers with the base cloth.
Claim 15
Dependent Claim
109 words
A suede-like sheet material having a thickness and specific volume of 0.4 to 1.0 mm and 2.0 to 3.5 cm 2 /g respectively, comprising: forming a composite layer material by depositing a web consisting of ultrafine fibers of less than 0.5 denier per filament on a base cloth of a knitted fabric or a woven fabric; expelling a fine liquid stream jet under high pressure onto the surface of the ultrafine fiber web thereby substantially integrating ultrafine fibers with the base cloth; and then impregnating the sheet with an elastic polymer in an amount less than 50% based on the total weight of the base cloth and ultrafine fibers.
Claim 16
Dependent Claim
109 words
A suede-like sheet material having a thickness and specific volume of 0.4 to 1.0 mm and 2.0 to 3.5 cm 2 /g respectively, comprising: forming a composite layer material by depositing a web consisting of ultrafine fibers of less than 0.5 denier per filament on a base cloth of a knitted fabric or a woven fabric; expelling a fine liquid stream jet under high pressure onto the surface of the ultrafine fiber web thereby substantially integrating ultrafine fibers with the base cloth; and then impregnating the sheet with an elastic polymer in an amount less than 50% based on the total weight of the base cloth and ultrafine fibers.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-10 | 1986-07-12 | 1987-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-10 | 1990-07-12 | 1991-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-10 | 1994-07-12 | 1995-01-11 | $7700.00 | Window Closed / Lapsed |