Patent US4218869A successfully refreshed from Google Patents.
US4218869A
Expired / Lapsed
US
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Spun-like continuous multifilament yarn
Assignee: BP Corp North America Inc
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Filing: 1978-08-17
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Granted: 1980-08-26
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Expires: 1998-08-17
Abstract
Abstract A process is disclosed for producing a continuous multifilament yarn of melt-spinnable, polymeric material which comprises draw-texturing first and second continuous filament yarn ends separately and then combining the yarn ends in an interlacing zone by feeding one of the yarn ends at a higher speed than the other through a jet entangler to interlace the yarns together. Also disclosed is the spun-like continuous multifilament yarn produced by the novel process.
Inventors
- 👤 Richard C. Newton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:10
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/20; Y; Y10; Y10S; Y10S57/00; Y10S57/908
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
41 words
A process for producing a continuous multifilament yarn comprising combining and mutually interlacing a plurality of draw-textured yarn ends in an interlacing zone at different overfeed speeds so as to produce a composite continuous multifilament yarn of spun-like appearance and feel.
Claim 2
Dependent Claim
41 words
A process for producing a continuous multifilament yarn comprising combining and mutually interlacing a plurality of draw-textured yarn ends in an interlacing zone at different overfeed speeds so as to produce a composite continuous multifilament yarn of spun-like appearance and feel.
Claim 3
Dependent Claim
95 words
A process for producing a continuous multifilament yarn comprising: draw-texturing a first continuous multifilament yarn end; draw-texturing a second continuous multifilament yarn end; feeding the thus draw-textured first yarn end into an interlacing zone at a first speed; feeding the thus draw-textured second yarn end into said interlacing zone at a second speed in excess of said first speed; combining and interlacing said draw-textured first and second yarn ends together in said interlacing zone so as to produce a final continuous multifilament yarn having the appearance and feel of a yarn spun from staple fibers.
Claim 4
Dependent Claim
95 words
A process for producing a continuous multifilament yarn comprising: draw-texturing a first continuous multifilament yarn end; draw-texturing a second continuous multifilament yarn end; feeding the thus draw-textured first yarn end into an interlacing zone at a first speed; feeding the thus draw-textured second yarn end into said interlacing zone at a second speed in excess of said first speed; combining and interlacing said draw-textured first and second yarn ends together in said interlacing zone so as to produce a final continuous multifilament yarn having the appearance and feel of a yarn spun from staple fibers.
Claim 5
Dependent Claim
96 words
A process as defined in claim 2 wherein said first yarn end is draw-textured by: heating said partially oriented first yarn end; drawing the thus heated first yarn end; cooling the thus drawn first yarn end; friction-texturing the thus cooled first yarn end; and reheating the thus textured first yarn end; and wherein said second yarn end is draw-textured by: heating said partially oriented second yarn end; drawing the thus heated second yarn end; cooling the thus drawn second yarn end; friction-texturing the thus cooled second yarn end; and reheating the thus textured second yarn end.
Claim 6
Dependent Claim
56 words
A process as defined in claim 2 wherein said combining and interlacing step includes feeding said draw-textured first and second yarn ends through an air jet entangler so as to interlace at least a portion of the filaments of said second yarn end among at least a portion of the filaments of said first yarn end.
Claim 7
Dependent Claim
20 words
A process as defined in claim 2 or claim 3 wherein said first and second yarn ends are simultaneously draw-textured.
Claim 8
Dependent Claim
22 words
A process as defined in claim 1 or claim 2 wherein each of said yarn ends is formed of melt-spinnable polymeric material.
Claim 9
Dependent Claim
21 words
A process as defined in claim 1 or claim 2 wherein each of said yarn ends is formed of polyethylene terephthalate.
Claim 10
Dependent Claim
13 words
A continuous multifilament yarn produced in accordance with the process of claim 1.
Claim 11
Dependent Claim
19 words
A yarn as defined in claim 8 wherein each of said yarn ends is formed of melt-spinnable polymeric material.
Claim 12
Dependent Claim
36 words
A yarn as defined in claim 8 wherein each of said yarn ends is formed of melt-spinnable polymeric material selected from the group consisting of polyesters, polyamides, polyolefins and mixtures of any two or more thereof.
Claim 13
Dependent Claim
21 words
A yarn as defined in claim 8 wherein all of said yarn ends are formed of the same melt-spinnable polymeric material.
Claim 14
Dependent Claim
18 words
A yarn as defined in claim 9 wherein all of said yarn ends are formed of polyethylene terephthalate.
Claim 15
Dependent Claim
13 words
A continuous multifilament yarn produced in accordance with the process of claim 2.
Claim 16
Dependent Claim
22 words
A yarn as defined in claim 13 wherein each of said first and second yarn ends is formed of melt-spinnable polymeric material.
Claim 17
Dependent Claim
39 words
A yarn as defined in claim 13 wherein each of said first and second yarn ends is formed of melt-spinnable polymeric material selected from the group consisting of polyesters, polyamides, polyolefins and mixtures of any two or more thereof.
Claim 18
Dependent Claim
21 words
A yarn as defined in claim 13 wherein both of said yarn ends are formed of the same melt-spinnable polymeric material.
Claim 19
Dependent Claim
18 words
A yarn as defined in claim 14 wherein both of said yarn ends are formed of polyethylene terephthalate.
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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) | 1983-08-26 | 1984-02-25 | 1984-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-26 | 1988-02-25 | 1988-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-26 | 1992-02-25 | 1992-08-26 | $7700.00 | Window Closed / Lapsed |