Patent US3906130A successfully refreshed from Google Patents.
US3906130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-woven and perforated textile fabrics made from continuous synthetic fiber, and a process for the manufacture of same
Assignee: Asahi Kasei Corp
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Filing: 1973-07-24
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Granted: 1975-09-16
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Expires: 1993-07-24
Abstract
Abstract A perforated non-woven textile web is prepared from continuously extruded filaments. The filaments are formed into a web which has alternately arranged, continuous filaments of relatively linear portions which are physically cross linked at various portions along the filament lengths. The filaments also have finely folded portions along their length and the web also has projections and perforations in and on its surface. The web is arranged in such a manner that the filament and finely folded portions are entangled with each other at each of the projections to provide a reinforced latticework structure.
Inventors
- 👤 Takashi Tsurumi
- 👤 Shuichi Emori
- 👤 Kiyokazu Daigoh
- 👤 Takemi Ikegami
- 👤 Tutomu Kaneko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:55
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/08; D04H3/16; D04H3/013; D04H3/02; D04H3/05; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/29; Y10T428/2913; Y10T428/2922
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
149 words
A PERFORATED NON-WOVEN TEXTILE WEB MADE FROM CONTINUOUSLY EXTRUDED FILMENTS PRODUCED BY A WET SPINNING PROCESS WHEREIN THE WEB CONSISTS ESSENTIALLY OF ALTERNATELY ARRANGED CONTINUOUS FILAMENTS OF RELATIVELY LINEAR PORTIONS (A) WHICH ARE PHYSICALLY CROSS-LINKED TO EACH OTHER WITHOUT THE USE OF BONDED AGENTS AT VARIOUS PORTIONS ALONG THE LENGTH OF SAID FILAMENTS TO FORM A LATTICEWORK STRUCTURE SAID FILAMENTS ALSO HAVE FINELY FOLDED PORTION (B) WHEREIN THE FINELY FOLDED PORTIONS ARE EVENLY DISTRIBUTED OVER THE ENTIRE AREA OF THE WEB THE WEB HAVING REGULARLY ARRANGED PROJECTIONS AND PERFORATIONS SUCH THAT THE FILAMENT PORTIONS (A) AND (B) ARE ENTANGLED WITH EACH OTHER AT EACH OF THE PROJECTIONS TO FIX AND REINFORCE THE LATTICEWORK STRUCTURE, THE WEB HAVING AN ARRANGEMENT SUCH THAT THE WEB REPRESENTS AN INFINITE NUMBER OF PROJECTION DISTRIBUTED GEOMETRICALLY OVER THE WHOLE SURFACE OF THE WEB AND THE FILAMENTS BEING UNITED WITH EACH OTHER AT THESE PROJECTIONS.
Claim 2
Dependent Claim
149 words
A PERFORATED NON-WOVEN TEXTILE WEB MADE FROM CONTINUOUSLY EXTRUDED FILMENTS PRODUCED BY A WET SPINNING PROCESS WHEREIN THE WEB CONSISTS ESSENTIALLY OF ALTERNATELY ARRANGED CONTINUOUS FILAMENTS OF RELATIVELY LINEAR PORTIONS (A) WHICH ARE PHYSICALLY CROSS-LINKED TO EACH OTHER WITHOUT THE USE OF BONDED AGENTS AT VARIOUS PORTIONS ALONG THE LENGTH OF SAID FILAMENTS TO FORM A LATTICEWORK STRUCTURE SAID FILAMENTS ALSO HAVE FINELY FOLDED PORTION (B) WHEREIN THE FINELY FOLDED PORTIONS ARE EVENLY DISTRIBUTED OVER THE ENTIRE AREA OF THE WEB THE WEB HAVING REGULARLY ARRANGED PROJECTIONS AND PERFORATIONS SUCH THAT THE FILAMENT PORTIONS (A) AND (B) ARE ENTANGLED WITH EACH OTHER AT EACH OF THE PROJECTIONS TO FIX AND REINFORCE THE LATTICEWORK STRUCTURE, THE WEB HAVING AN ARRANGEMENT SUCH THAT THE WEB REPRESENTS AN INFINITE NUMBER OF PROJECTION DISTRIBUTED GEOMETRICALLY OVER THE WHOLE SURFACE OF THE WEB AND THE FILAMENTS BEING UNITED WITH EACH OTHER AT THESE PROJECTIONS.
Claim 3
Dependent Claim
23 words
The web according to claim 1 wherein the projections and perforations are alternately arranged in the lengthwise and laterwise directions of the web.
References Cited (Backward Citations)
US3498874A
Cited
US3485709A
Cited
US3531363A
Cited
US3537945A
Cited
US3485706A
Cited
US3485708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |