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Patent US3701248A successfully refreshed from Google Patents.
US3701248A
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US
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Interlaced multifilament yarn
Assignee: EIDP Inc
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Filing: 1971-04-28
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Granted: 1972-10-31
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Expires: 1991-04-28
Abstract
Abstract Interlaced multifilament yarn for weaving as warp in automatic power looms without size or twist is compact and uniform with unusually high bundle cohesion. Interlacing processes and finishes for retaining interlace are illustrated. Suitable intensity and permanence of interlace for weaving are defined by simple measurements.
Inventors
- 👤 Walter Clarke Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:50
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/08; Y; Y10; Y10S; Y10S57/00; Y10S57/908; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969; Y10T428/298
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
155 words
Compact interlaced yarn which weaves satisfactorily as warp in automatic shuttle looms without size or twist, the yarn consisting of interlaced continuous filaments treated with cohesive finish for retaining interlace during processing of the yarn on textile machinery, the interlace permanence being at least 40 percent in the flexure test for interlace permanence; the filaments being interlaced in a compact coherent structure characterized, when evaluated by the APDC test, by a value for X'' + in centimeters of less than 0.17 (B/N) + 4.0, where X'' is the average of 100 APDC readings on a representative sample after backwinding, sigma '' is the standard deviation of the APDC readings, B is the breaking strength of the yarn in grams and N is the number of filaments; the yarn having a breaking strength of at least 4.0 N and at least 50 percent of the yarn filaments having strengths of at least 2.0 grams per denier.
Claim 2
Dependent Claim
155 words
Compact interlaced yarn which weaves satisfactorily as warp in automatic shuttle looms without size or twist, the yarn consisting of interlaced continuous filaments treated with cohesive finish for retaining interlace during processing of the yarn on textile machinery, the interlace permanence being at least 40 percent in the flexure test for interlace permanence; the filaments being interlaced in a compact coherent structure characterized, when evaluated by the APDC test, by a value for X'' + in centimeters of less than 0.17 (B/N) + 4.0, where X'' is the average of 100 APDC readings on a representative sample after backwinding, sigma '' is the standard deviation of the APDC readings, B is the breaking strength of the yarn in grams and N is the number of filaments; the yarn having a breaking strength of at least 4.0 N and at least 50 percent of the yarn filaments having strengths of at least 2.0 grams per denier.
Claim 3
Dependent Claim
30 words
Compact interlaced yarn as defined in claim 1 wherein the yarn is 20 - 250 denier and consists of at least seven filaments of 1 - 10 denier per filament.
Claim 4
Dependent Claim
16 words
Compact interlaced yarn as defined in claim 2 wherein the filaments are composed of polyethylene terephthalate.
Claim 5
Dependent Claim
33 words
Compact interlaced yarn as defined in claim 3 wherein the cohesive finish comprises paraffin wax, oxidized Fischer-Tropsch wax, 16 - 18 carbon primary alcohol ethoxylate, acrylic polymer, ethoxylate stearyl amine and potassium hydroxide.
Claim 6
Dependent Claim
31 words
Compact interlaced yarn as defined in claim 3 wherein the cohesive finish comprises acrylic polymer, butyl stearate, sulfated peanut glycerides, oleic acid, triethanol amine, diethylene glycol, orthophenyl phenol and potassium hydroxide.
Claim 7
Dependent Claim
34 words
Compact interlaced yarn as defined in claim 3 wherein the cohesive finish comprises acrylic polymer, butyl stearate, ethoxylated tallow amine quaternary, sulfated peanut glycerides, oleic acid, triethanolamine, diethylene glycol, orthophenyl phenol and potassium hydroxide.
Claim 8
Dependent Claim
15 words
Compact interlaced yarn as defined in claim 2 wherein the filaments are composed of polyhexamethyladipamide.
Claim 9
Dependent Claim
23 words
Compact interlaced yarn as defined in claim 7 wherein the cohesive finish comprises polyethylene glycol diester and fatty acid esters of higher polyglycols.
Claim 10
Dependent Claim
34 words
Compact interlaced yarn as defined in claim 7 wherein the cohesive finish comprises polyacrylic acid, butyl stearate, fatty acid esters of higher polyglycols, oleyl acid orthophosphates, polyoxyethylene sorbitol hexaoleate, oleic acid and potassium hydroxide.
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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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |