US3240649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonding neoprene to polyethylene terephthalate fibers
Assignee: Burlington Industries Inc
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Filing: 1960-11-21
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Granted: 1966-03-15
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Expires: 1980-11-21
Abstract
No abstract record available.
Inventors
- 👤 Everett C Atwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:01
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; C08J2311/00; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31565; Y10T428/31573; Y10T428/31587
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A PROCESS FOR BONDING POLYETHYLENE TEREPHTHALATE FIBERS TO NEOPRENE RUBBER, THE IMPROVEMENT WHICH COMPRISES FIRST TREATING SAID POLYETHYLENE TEREPHTHALATE FIBERS WITH AN ORGANIC SOLVENT SOLUTION OF AN ORGANIC POLYISOCYANATE, DRYING THE THUS TREATED POLYETHYLENE TEREPHTHALATE FIBERS, THEN TREATING SAID FIBERS WITH AN ORGANIC SOLVENT-FREE AQUEOUS COMPOSITION INCLUDING A RESOLE AND A NEOPRENE LATEX THE RATIO OF RESOLE SOLIDS TO NEOPRENE LATEX SOLIDS BEING BETWEEN 1:12 AND 1:2.5, AND AGAIN DRYING THE THUS TREATED MATERIAL, SAID TREATING AND DRYING STEPS PRECEDING THE APPLICATION OF THE NEOPRENE RUBBER TO SAID POLYETHYLENE TEREPHTHALATE, THE AMOUNT OF POLYISOCYANATE SOLIDS APPLIED TO SAID POLYETHYLENE TEREPHTHALATE BEING AT LEAST 0.5%, BASED ON THE WEIGHT OF DRY FIBERS AND THE AMOUNT OF NEOPRENE LATEX/RESOLE SOLIDS BEING BETWEEN 5 AND 15%, BASED ON THE WEIGHT OF THE DRY FIBERS.
Claim 2
Dependent Claim
132 words
IN A PROCESS FOR BONDING POLYETHYLENE TEREPHTHALATE FIBERS TO NEOPRENE RUBBER, THE IMPROVEMENT WHICH COMPRISES FIRST TREATING SAID POLYETHYLENE TEREPHTHALATE FIBERS WITH AN ORGANIC SOLVENT SOLUTION OF AN ORGANIC POLYISOCYANATE, DRYING THE THUS TREATED POLYETHYLENE TEREPHTHALATE FIBERS, THEN TREATING SAID FIBERS WITH AN ORGANIC SOLVENT-FREE AQUEOUS COMPOSITION INCLUDING A RESOLE AND A NEOPRENE LATEX THE RATIO OF RESOLE SOLIDS TO NEOPRENE LATEX SOLIDS BEING BETWEEN 1:12 AND 1:2.5, AND AGAIN DRYING THE THUS TREATED MATERIAL, SAID TREATING AND DRYING STEPS PRECEDING THE APPLICATION OF THE NEOPRENE RUBBER TO SAID POLYETHYLENE TEREPHTHALATE, THE AMOUNT OF POLYISOCYANATE SOLIDS APPLIED TO SAID POLYETHYLENE TEREPHTHALATE BEING AT LEAST 0.5%, BASED ON THE WEIGHT OF DRY FIBERS AND THE AMOUNT OF NEOPRENE LATEX/RESOLE SOLIDS BEING BETWEEN 5 AND 15%, BASED ON THE WEIGHT OF THE DRY FIBERS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |