US2835641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous emulsions for the preparation of water repellent dressings and process of treating fibrous materials therewith
Assignee: BASF Schweiz AG
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Filing: 1954-06-28
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Granted: 1958-05-20
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Expires: 1974-06-28
Abstract
No abstract record available.
Inventors
- 👤 Widmer Gustav
- 👤 Fatzer Willy
- 👤 Geigy Wilhelm
- 👤 Kraus Wilhelm
- 👤 Hiestand Armin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:43
CPC Classifications
C; C09; C09K; C09K23/00; C09K23/017; D; D06; D06M; D06M13/00; D06M13/02; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A CONCENTRATED AQUEOUS EMULSION OF THE OIL-IN-WATER TYPE SUITABLE FOR THE PREPARATION OF AN AQUEOUS IMPREGNATING BATH, WHICH EMULSION CONTAINS IN THE OILY PHASE 7A) A WATER-INSOLUBLE METHYLOL COMPOIND OF MELAMINE IN WHICH THE OXYGEN ATOM OF AT LEAST ONE METHYLOL GROUP IS ETHERIFIED WITH AN ALIPHATIC SATURATED ALCOHOL CONTAINING MORE THAN 8 CARBON ATOMS AND (B) A WATER REPELLENT WAX SELECTED FROM THE GROUP CONSISTING OF PARAFFIN WAX AND BEESWAX, SAID EMULSION CONTAINING IN THE AQUEOUS PHASE (C) AN EMULSIFYING AGENT CONSISTING OF A WATER SOLUBLE, SYNTHETIC, HIGH MOLECULAR SUBSTANCE FORMING HIGHLY VISCOUS SOLUTIONS, THE CONSTITUENTS OF SAID EMULSION BEING PRESENT IN THE RELATIVE PROPORTIONS BY WEIGHT BETWEEN THE RANGES: AQUEOUS PHASE TO OILY PHASE 55:45 TO 80:20, COMPONENT (A) TO COMPONENT (B) 5:1 TO 1:19 AND COMPONENT (C) 0.5 TO 6 PERCENT OF THE TOTAL WEIGHT OF THE EMULSION.
Claim 2
Dependent Claim
141 words
A CONCENTRATED AQUEOUS EMULSION OF THE OIL-IN-WATER TYPE SUITABLE FOR THE PREPARATION OF AN AQUEOUS IMPREGNATING BATH, WHICH EMULSION CONTAINS IN THE OILY PHASE 7A) A WATER-INSOLUBLE METHYLOL COMPOIND OF MELAMINE IN WHICH THE OXYGEN ATOM OF AT LEAST ONE METHYLOL GROUP IS ETHERIFIED WITH AN ALIPHATIC SATURATED ALCOHOL CONTAINING MORE THAN 8 CARBON ATOMS AND (B) A WATER REPELLENT WAX SELECTED FROM THE GROUP CONSISTING OF PARAFFIN WAX AND BEESWAX, SAID EMULSION CONTAINING IN THE AQUEOUS PHASE (C) AN EMULSIFYING AGENT CONSISTING OF A WATER SOLUBLE, SYNTHETIC, HIGH MOLECULAR SUBSTANCE FORMING HIGHLY VISCOUS SOLUTIONS, THE CONSTITUENTS OF SAID EMULSION BEING PRESENT IN THE RELATIVE PROPORTIONS BY WEIGHT BETWEEN THE RANGES: AQUEOUS PHASE TO OILY PHASE 55:45 TO 80:20, COMPONENT (A) TO COMPONENT (B) 5:1 TO 1:19 AND COMPONENT (C) 0.5 TO 6 PERCENT OF THE TOTAL WEIGHT OF THE EMULSION.
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) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |