US3760046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing a composite yarn which is bulky, slip-resistant and of high strength
Assignee: Avisun Corp
•
Filing: 1967-08-04
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Granted: 1973-09-18
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Expires: 1987-08-04
Abstract
Abstract Composite polyolefin yarns formed by a polypropylene or highdensity polyethylene core or center ply coated with at least one layer of a thermoplastic material such as a foamed resin, which serves to deluster and to reduce the slippage properties of the resultant yarn, and also to impart other characteristics thereto which improve the dye-ability and bondability of fabrics woven from the yarn, without sacrificing the advantages gained by the use of a high-strength core.
Inventors
- 👤 H Schwartz
- 👤 M Port
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:14
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/20; B29C44/22; D; D01; D01D; D01D5/00; D01D5/42; D01D5/426; B29C48/00; B29C48/03; B29C48/05; B29C48/07; B29C48/08; Y; Y10; Y10S; Y10S264/00; Y10S264/16; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/29; Y10T428/2913; Y10T428/2929
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
18 words
A process as set forth in claim 1, wherein said abrasion is effected before the tapes are stretch-oriented.
Claim 2
Dependent Claim
16 words
A process as set forth in claim 1, wherein the steps thereof are carried out continuously.
Claim 3
Dependent Claim
15 words
The process as set forth in claim 1, wherein said polyolefin core is a polypropylene.
Claim 4
Dependent Claim
16 words
The process as set forth in claim 1, wherein said polyolefin core is a high-density polyethylene.
Claim 5
Dependent Claim
26 words
The process as set forth in claim 1, wherein said molten materials are extruded in a multi-chambered die having a flat orifice common to said materials.
References Cited (Backward Citations)
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US2976567A
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GB985310A
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GB952138A
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US3189941A
Cited
US3281259A
Cited
US3398220A
Cited
US3415920A
Cited
US3594459A
Cited
US3557265A
Cited
US3565985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |