US3009833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rendering fibrous materials water-repellent
Assignee: Imperial Chemical Industries Ltd
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Filing: 1959-02-12
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Granted: 1961-11-21
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Expires: 1979-02-12
Abstract
No abstract record available.
Inventors
- 👤 Somerville James Cargill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:26
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/32; D06M11/36; D06M11/46; D06M13/00; D06M13/10; D06M13/184; D06M13/188; D06M13/50; D06M13/503; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/59; H; H04; H04M; H04M3/00; H04M3/22; H04M3/26; H04M3/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR IMPROVING THE WATER REPELLENCY OF FIBROUS MATERIALS COMPRISING TREATING THE SAID FIBROUS MATERIALS WITH A METHYLPOLYSILOXANE FLUID IN THE PRESENCE OF AN ORGANO-TIN OXIDE IN AMOUNT UP TO ABOUT 10 PERCENT BY WEIGHT OF THE METHYLPOLYSILOXANE FLUID AND A METAL OCTOATE IN AMOUNT UP TO ABOUT 40 PERCENT BY WEIGHT OF THE METHYLPOLYSILOXANE FLUID, AND THEREAFTER EXPOSING THE TREATED MATERIAL TO A TEMPERATURE NOT GREATER THAN 150* C. WHEREBY THE METHYLPOLYSILOXANE IS CURED.
Claim 2
Dependent Claim
76 words
A PROCESS FOR IMPROVING THE WATER REPELLENCY OF FIBROUS MATERIALS COMPRISING TREATING THE SAID FIBROUS MATERIALS WITH A METHYLPOLYSILOXANE FLUID IN THE PRESENCE OF AN ORGANO-TIN OXIDE IN AMOUNT UP TO ABOUT 10 PERCENT BY WEIGHT OF THE METHYLPOLYSILOXANE FLUID AND A METAL OCTOATE IN AMOUNT UP TO ABOUT 40 PERCENT BY WEIGHT OF THE METHYLPOLYSILOXANE FLUID, AND THEREAFTER EXPOSING THE TREATED MATERIAL TO A TEMPERATURE NOT GREATER THAN 150* C. WHEREBY THE METHYLPOLYSILOXANE IS CURED.
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) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |