US3884030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrillated foamed textile products and method of making same
Assignee: Monsanto Chemicals Ltd
•
Filing: 1965-10-15
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Granted: 1975-05-20
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Expires: 1985-10-15
Abstract
Abstract A thermoplastic yarn is continuously produced from an extruded cellular foam material which has been oriented in the direction of extrusion by subjecting the oriented foamed material to forces which break down the cell walls to form a three-dimensional structure of interconnected fibre elements.
Inventors
- 👤 Samuel Baxter
- 👤 John Harold Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:08
CPC Classifications
D; D04; D04H; D04H13/00; D01; D01D; D01D5/00; D01D5/24; D01D5/247; D02; D02G; D02G3/00; D02G3/02; Y; Y10; Y10S; Y10S264/00; Y10S264/08; Y10S57/00; Y10S57/907; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24083; Y10T428/29; Y10T428/2913; Y10T428/2973
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
88 words
AN EXTRUDED THERMOPLASTIC YARN COMPRISING A NETWORK OF RANDOMLY INTERCONNECTED FIBRE ELEMENTS GENERALLY RESIDING LONGITUDINALLY WITH RESPECT TO THE DIRECTION EXTRUSION, SAID FIBRE ELEMENTS BEING BRANCHED AND BEING INTERCONNECTED BY HAVING COMMON BRANCHES AND AT LEAST PORTIONS OF SAID FIBRE ELEMENTS HAVING A TRILOBARE CONSTRUCTION IN CROSS-SECTIOM WITH RESPECT TO THE DIRECTION OF EXTRUSION SAID BRANCHED FIBRE ELEMENTS AND SAID TRILOBATE CONSTRUCTION BEING FORMED BY THE BREAKING DOWN OF AN EXTRUDED AND DRAWN CELLULAR FOAM RODSHAPED MATERIAL, SAID ROD SHAPED MATERIAL BEING DRAWN IN THE DIRECTION OF EXTRUSION.
Claim 2
Dependent Claim
88 words
AN EXTRUDED THERMOPLASTIC YARN COMPRISING A NETWORK OF RANDOMLY INTERCONNECTED FIBRE ELEMENTS GENERALLY RESIDING LONGITUDINALLY WITH RESPECT TO THE DIRECTION EXTRUSION, SAID FIBRE ELEMENTS BEING BRANCHED AND BEING INTERCONNECTED BY HAVING COMMON BRANCHES AND AT LEAST PORTIONS OF SAID FIBRE ELEMENTS HAVING A TRILOBARE CONSTRUCTION IN CROSS-SECTIOM WITH RESPECT TO THE DIRECTION OF EXTRUSION SAID BRANCHED FIBRE ELEMENTS AND SAID TRILOBATE CONSTRUCTION BEING FORMED BY THE BREAKING DOWN OF AN EXTRUDED AND DRAWN CELLULAR FOAM RODSHAPED MATERIAL, SAID ROD SHAPED MATERIAL BEING DRAWN IN THE DIRECTION OF EXTRUSION.
Claim 3
Dependent Claim
18 words
The yarn of claim 1 wherein said yarn is provided with from 1 to 25 twists per inch.
Claim 4
Dependent Claim
17 words
The yarn of claim 2 wherein said yarn has a diameter of from 0.005 to 0.15 inches.
Claim 5
Dependent Claim
29 words
The yarn of claim 1 wherein a cross-section taken at right angles to the axis of said yarn shows from 10 to 40% of said fibre elements being branched.
Claim 6
Dependent Claim
22 words
The yarn of claim 4 wherein said fibre elements have a surface area of between 0.05 and 1.5 square meters per gram.
Claim 7
Dependent Claim
32 words
The yarn of claim 5 wherein the average distance between points of interconnection between the fiber elements is from 10 to 740 times greater than the average thickness of the fibre elements.
Claim 8
Dependent Claim
33 words
The yarn of claim 6 wherein the fibre elements are composed of a thermoplastic material which is a synthetic polymer selected from the group consisting of a polyamide, a polyester and a polylactam.
Claim 9
Dependent Claim
13 words
The yarn of claim 6 wherein the fibre elements are composed of polyethylene.
Claim 10
Dependent Claim
13 words
The yarn of claim 6 wherein the fibre elements are composed of polypropylene.
Claim 11
Dependent Claim
13 words
The yarn of claim 6 wherein the fibre elements are composed of polystyrene.
Claim 12
Dependent Claim
19 words
The yarn of claim 6 wherein the fibre elements are composed of a copolymer of acrylonitrile and vinyl acetate.
Claim 13
Dependent Claim
9 words
A fabric woven from the yarn of claim 1.
Claim 14
Dependent Claim
11 words
A cord comprising a plurality of twisted yarn of claim 1.
Claim 15
Dependent Claim
52 words
A foamed, thermoplastic yarn structure comprising a plurality of spaced apart, longitudinally extending fiber elements integrally joined to one another by a plurality of spaced apart, cross fibers to produce an integral net-like structure, the fibers of said structure being characterized by internal voids throughout the fibers, surface unevenness, and surface pits.
Claim 16
Dependent Claim
52 words
A foamed, thermoplastic yarn structure comprising a plurality of spaced apart, longitudinally extending fiber elements integrally joined to one another by a plurality of spaced apart, cross fibers to produce an integral net-like structure, the fibers of said structure being characterized by internal voids throughout the fibers, surface unevenness, and surface pits.
Claim 17
Dependent Claim
51 words
A foamed, thermoplastic structure comprising a plurality of spaced apart, longitudinally extending fiber elements integrally joined to one another by a plurality of spaced apart, crossed fibers to produce an integral net-like structure, the fibers of said structure being characterized by internal voids throughout the fibers, surface unevenness, and surface pits.
Claim 18
Dependent Claim
51 words
A foamed, thermoplastic structure comprising a plurality of spaced apart, longitudinally extending fiber elements integrally joined to one another by a plurality of spaced apart, crossed fibers to produce an integral net-like structure, the fibers of said structure being characterized by internal voids throughout the fibers, surface unevenness, and surface pits.
Claim 19
Dependent Claim
39 words
A PROCESS FOR MANUFACTURING A GIVROUS PRODUCT COMPRISING THE STEPS OF: A. FORMING A CELLULAR THERMOPLASTIC STRUCTURE WITH THE CELLS HAVING BEEN FORMED BY THE EXPANSION OF A BLOWING AGENT; B. DRAWING SAID CELLULAR THERMOPLASTIC STRUCTURE AT A RATIO
Claim 20
Dependent Claim
39 words
A PROCESS FOR MANUFACTURING A GIVROUS PRODUCT COMPRISING THE STEPS OF: A. FORMING A CELLULAR THERMOPLASTIC STRUCTURE WITH THE CELLS HAVING BEEN FORMED BY THE EXPANSION OF A BLOWING AGENT; B. DRAWING SAID CELLULAR THERMOPLASTIC STRUCTURE AT A RATIO
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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) | 1978-05-19 | 1978-11-18 | 1979-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-19 | 1982-11-18 | 1983-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-19 | 1986-11-18 | 1987-05-20 | $7700.00 | Window Closed / Lapsed |