US2562440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing stable emulsions of thermoplastic synthetic polymers
Assignee: Distillers Co Yeast Ltd
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Filing: 1946-10-29
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Granted: 1951-07-31
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Expires: 1966-10-29
Abstract
No abstract record available.
Inventors
- 👤 Staudinger Johann Josef Peter
- 👤 Cleverdon Desmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:45
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/08; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F2/26; C08F20/00; C08F20/02; C08F20/10; C08F20/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
A PROCESS FOR THE PRODUCTION OF POLYMER EMULSIONS WHICH COMPRISES DISPERSING A POLYMERIZABLE MONOMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF A VINYL ESTER OF AN ALIPHATIC ACID AND AN ALIPHATIC SATURATED MONOHYDRIC ALCOHOL ESTER OF ACRYLIC ACID IN AN AQUEOUS MEDIUM CONTAINING A FATTY ALCOHOL CONTAINING 10 TO 20 CARBON ATOMS IN THE MOLECULE AS AN EMULSION STABILIZER, AN EMULSIFYING AGENT OF THE CLASS CONSISTING OF THE ALKALI METAL, AMMONIUM, ALKYLAMINE AND ALKOXYAMINE SALTS OF SULPHATED FATTY ALCOHOLS WHICH CONTAIN 10 TO 20 CARBON ATOMS IN THE MOLECULE AND A SURFACE-TENSION REDUCER OF THE CLASS CONSISTING OF THE ALKALI METAL AND AMMONIUM SALTS OF DIALKYL ESTERS SULPHO-SUCCINIC ACID THE RATIO OF SAID EMULSION STABILIZER TO SAID EMULSIFYING AGENT LYING IN THE RANGE BETWEEN 9 TO 1 AND 1 TO 1 AND THE RATIO OF THE COMBINED AMOUNTS OF SAID EMULSTION STABILIZER AND EMULSIFYING AGENT TO SAID SURFACE TENSION REDUCER LYING IN THE RANGE BETWEEN 24 TO 1 AND 1.78 TO 1 AND POLYMERIZING SAID MONOMERIC MATERIAL.
Claim 2
Dependent Claim
167 words
A PROCESS FOR THE PRODUCTION OF POLYMER EMULSIONS WHICH COMPRISES DISPERSING A POLYMERIZABLE MONOMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF A VINYL ESTER OF AN ALIPHATIC ACID AND AN ALIPHATIC SATURATED MONOHYDRIC ALCOHOL ESTER OF ACRYLIC ACID IN AN AQUEOUS MEDIUM CONTAINING A FATTY ALCOHOL CONTAINING 10 TO 20 CARBON ATOMS IN THE MOLECULE AS AN EMULSION STABILIZER, AN EMULSIFYING AGENT OF THE CLASS CONSISTING OF THE ALKALI METAL, AMMONIUM, ALKYLAMINE AND ALKOXYAMINE SALTS OF SULPHATED FATTY ALCOHOLS WHICH CONTAIN 10 TO 20 CARBON ATOMS IN THE MOLECULE AND A SURFACE-TENSION REDUCER OF THE CLASS CONSISTING OF THE ALKALI METAL AND AMMONIUM SALTS OF DIALKYL ESTERS SULPHO-SUCCINIC ACID THE RATIO OF SAID EMULSION STABILIZER TO SAID EMULSIFYING AGENT LYING IN THE RANGE BETWEEN 9 TO 1 AND 1 TO 1 AND THE RATIO OF THE COMBINED AMOUNTS OF SAID EMULSTION STABILIZER AND EMULSIFYING AGENT TO SAID SURFACE TENSION REDUCER LYING IN THE RANGE BETWEEN 24 TO 1 AND 1.78 TO 1 AND POLYMERIZING SAID MONOMERIC MATERIAL.
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) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |