US2978362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-repellent fabric
Assignee: Phillips Petroleum Co
•
Filing: 1957-03-11
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Granted: 1961-04-04
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Expires: 1977-03-11
Abstract
No abstract record available.
Inventors
- 👤 James E Pritchard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:59
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/244; Y; Y10; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/277; Y10T442/00; Y10T442/20; Y10T442/2164
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
111 words
A METHOD OF TREATING FABRIC TO IMPART WATER-REPELLENCY THERETO WHICH COMPRISES COATING THE FIBERS OF SAID FABRIC WITH A HALOGENATED ETHYLENE POLYMER HAVING A HALOGEN CONTENT OF FROM 10 TO 60 WEIGHT PERCENT HALOGEN SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMINE AND IODINE, SAID ETHYLENE POLYMER BEING A POLYMERIZATE OF A MONOMER SYSTEM COMPRISING FROM 85 TO 100 WEIGHT PERCENT ETHYLENE AND FROM 0 TO 15 WEIGHT PERCENT MONOOLEFIN SELECTED FROM THE GROUP CONSISTING OF PROPYLENE, 1-BUTENE AND 2-BUTENE, AND SAID POLYMER BEFORE HALOGENATION BEING CHARACTERIZED BY A DENSITY OF AT LEAST 0.94, A CRYSTALLINITY AT 25*C. OF AT LEAST 80 PERCENT AND A SOFTENING TEMPERATURE OF AT LEAST 240*F.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |