Patent US3211580A successfully refreshed from Google Patents.
US3211580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the treatment of materials with silicones
Assignee: Bayer AG
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Filing: 1960-11-17
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Granted: 1965-10-12
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Expires: 1980-11-17
Abstract
No abstract record available.
Inventors
- 👤 Langmann Werner
- 👤 Lehmann Wolfgang
- 👤 Wunder Walter
- 👤 Glenz Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:53
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/6436; D06M15/39; D06M15/55; D06M15/65; D06M15/653; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/273
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AN IMPROVED PROCESS OF FIXING A WATER-REPELLENT SILICONE IMPREGNATION TO THE SURFACE OF A TEXTILE SO AS TO MAKE THE IMPREGNATION RESISTANT TO REPEATED LAUNDERING AND ABRASION WHICH COMPRISES IMPREGNATING THE TEXTILE WITH (1) A SILICONE SELECTED FROM THE GROUP CONSISTING OF METHYL-HYDROGEN-POLYSILOXANE AND DIMETHYL-POLYSILOXANE, AND (2) A RESIN PREPARED BY REACTING ANY EPOXY RESIN WITH AN ALKYLENE POLYAMINE CONTAINING AT LEAST TWO REACTIVE HYDROGEN ATOMS IN SUCH PROPORTIONS THAT 1-3 EPOXIDE GROUPS ARE EMPLOYED FOR EACH OF SAID REACTIVE HYDROGEN ATOMS, THE PROPORTION OF SAID RESIN TO THE POLYSILOXANE BEING ABOUT 0.4-2.7:1, AND SUBSEQUENTLY DRYING THE IMPREGNATED TEXTILE.
Claim 2
Dependent Claim
99 words
AN IMPROVED PROCESS OF FIXING A WATER-REPELLENT SILICONE IMPREGNATION TO THE SURFACE OF A TEXTILE SO AS TO MAKE THE IMPREGNATION RESISTANT TO REPEATED LAUNDERING AND ABRASION WHICH COMPRISES IMPREGNATING THE TEXTILE WITH (1) A SILICONE SELECTED FROM THE GROUP CONSISTING OF METHYL-HYDROGEN-POLYSILOXANE AND DIMETHYL-POLYSILOXANE, AND (2) A RESIN PREPARED BY REACTING ANY EPOXY RESIN WITH AN ALKYLENE POLYAMINE CONTAINING AT LEAST TWO REACTIVE HYDROGEN ATOMS IN SUCH PROPORTIONS THAT 1-3 EPOXIDE GROUPS ARE EMPLOYED FOR EACH OF SAID REACTIVE HYDROGEN ATOMS, THE PROPORTION OF SAID RESIN TO THE POLYSILOXANE BEING ABOUT 0.4-2.7:1, AND SUBSEQUENTLY DRYING THE IMPREGNATED TEXTILE.
References Cited (Backward Citations)
US2324483A
Cited
US2588365A
Cited
US2774690A
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US2865888A
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US2758946A
Cited
US2723924A
Cited
US2772248A
Cited
US2946701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |