US3306759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkyl-hydrogen-polysiloxane emulsions
Assignee: Bayer AG
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Filing: 1962-12-12
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Granted: 1967-02-28
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Expires: 1982-12-12
Abstract
No abstract record available.
Inventors
- 👤 Steinbach Hans-Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:26
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/6436; C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/22; C08G77/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A PROCESS FOR THE PRODUCTION OF STABLE AQUEOUS EMULSIONS CONTAINING ALKYL-HYDROGEN-POLYSILOXANES WHICH COMPRISES INCORPORATING 0.04 TO 2 PERCENT BY WEIGHT OF A PRIMARY AMINOCARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF GLYCINE, 6-AMINO-CAPRONIC ACID AND GLUTAMIC ACID INTO A MIXTURE OF (1) ABOUT 40 PERCENT BY WEIGHT OF METHYLPOLYSILOXANE HAVING A VISCOSITY OF HETWEEN 500 AND 1,000 CST. AT 20*C. SELECTED FROM THE GROUP CONSISTING OF A METBYL-HYDROGEN-POLYSILOXANE AND A MIXTURE OF METHYL-HYDROGEN-POLYSILOXANE AND POLYDIMETHYLSILOXANES, SAID METHYLPOLYSILOXANE BEING MODIFIED BY THE ADDITION OF A HALOGEN-ALKANE SO THAT DENSITY OF SLIGHTLY MORE THAN 1 G./CC. HAS BEEN OBTAINED, (2) 0.5 TO 3 PERCENT BY WEIGHT OF AN EMULSFYING AGENT SELECTED FROM THE GROUP CONSISTING OF A QUATERNARY ALKYLAMMONIUM SALT AND A LONG-CHAIN ALKYLAMINE, AND (3) WATER AS THE REMINDER, AND ADJUSTING THE PH OF THE RESULTING AQUEOUS EMULSION TO A VALUE OF BETWEEN 2.5 AND 5.0 WITH HYDROCHLORIC ACID.
Claim 2
Dependent Claim
148 words
A PROCESS FOR THE PRODUCTION OF STABLE AQUEOUS EMULSIONS CONTAINING ALKYL-HYDROGEN-POLYSILOXANES WHICH COMPRISES INCORPORATING 0.04 TO 2 PERCENT BY WEIGHT OF A PRIMARY AMINOCARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF GLYCINE, 6-AMINO-CAPRONIC ACID AND GLUTAMIC ACID INTO A MIXTURE OF (1) ABOUT 40 PERCENT BY WEIGHT OF METHYLPOLYSILOXANE HAVING A VISCOSITY OF HETWEEN 500 AND 1,000 CST. AT 20*C. SELECTED FROM THE GROUP CONSISTING OF A METBYL-HYDROGEN-POLYSILOXANE AND A MIXTURE OF METHYL-HYDROGEN-POLYSILOXANE AND POLYDIMETHYLSILOXANES, SAID METHYLPOLYSILOXANE BEING MODIFIED BY THE ADDITION OF A HALOGEN-ALKANE SO THAT DENSITY OF SLIGHTLY MORE THAN 1 G./CC. HAS BEEN OBTAINED, (2) 0.5 TO 3 PERCENT BY WEIGHT OF AN EMULSFYING AGENT SELECTED FROM THE GROUP CONSISTING OF A QUATERNARY ALKYLAMMONIUM SALT AND A LONG-CHAIN ALKYLAMINE, AND (3) WATER AS THE REMINDER, AND ADJUSTING THE PH OF THE RESULTING AQUEOUS EMULSION TO A VALUE OF BETWEEN 2.5 AND 5.0 WITH HYDROCHLORIC ACID.
References Cited (Backward Citations)
US2833022A
Cited
US2833735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |