US2933467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsion polymerization process
Assignee: Polysar Ltd
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Filing: 1955-05-13
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Granted: 1960-04-19
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Expires: 1975-05-13
Abstract
No abstract record available.
Inventors
- 👤 Borunsky Jules
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:51
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; C08F4/32; C08F4/36; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
IN THE AQUEOUS EMULSION POLYMERIZATION OF A POLYMERIZABLE HYDROCARBON COMPOUND CONTAINING 4-14 CARBON ATOMS AND A CH2=C< GROUP IN THE PRESENCE OF A WATER-SOLUBLE DISPERSING AGENT AND A PEROXYGEN CATALYST FOR SAID POLYMERIZATION, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE POLYMERIZATION WHILE USING AS A COMBINED DISPERSING AND CATALYZING AGENT FOR SAID POLYMERIZATION, AND AS THE SOLE CATALYZING AGENT, AN OXIDIZED DISPERSING AGENT PREPARED BY PASSING OZONE-CONTAINING OXYGEN GAS CONTAINING MORE THAN ABOUT 1% BY WEIGHT OZONE, AS THE SOLE OXIDIZING AGENT, THROUGH AN AQUEOUS SOLUTION OF SAID WATER-SOLUBLE DISPERSING AGENT AT A TEMPERATURE OF ABOUT 0-70*C. UNTIL AT LEAST ABOUT 0.154 PART BY WEIGHT OF OZONE PER 100 PARTS BY WEIGHT OF DISSOLVED WATER-SOLUBLE DISPERSING AGENT HAVE PASSED INTO SAID AQUEOUS SOLUTION, SAID WATER-SOLUBLE DISPERSING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL BASE ROSIN SOAPS CONSISTING OF ALKALI METAL SALTS OF ABIETIC ACID, DEHYDROABIETIC ACID AND TETRAHYDROABIETIC ACID, ALKALI METAL BASE FATTY ACID SOAPS CONSISTING OF ALKALI METAL SALTS OF ALIPHATIC CARBOXYLIC ACIDS CONTAINING 5-25 CARBON ATOMS AND FROM 0-3 OLEFINIC LINKAGES, ALKALI METAL SALTS OF CONDENSATES OF NAPHTHALENE SULFONIC ACIDS WITH FORMALDEHYDE, ALKALI METAL SALTS OF ALKYL ARYL SULFONATES, AND ETHYLENE OXIDE CONDENSATES WITH ALKYL PHENOLS.
Claim 2
Dependent Claim
201 words
IN THE AQUEOUS EMULSION POLYMERIZATION OF A POLYMERIZABLE HYDROCARBON COMPOUND CONTAINING 4-14 CARBON ATOMS AND A CH2=C< GROUP IN THE PRESENCE OF A WATER-SOLUBLE DISPERSING AGENT AND A PEROXYGEN CATALYST FOR SAID POLYMERIZATION, THE IMPROVEMENT WHICH COMPRISES CARRYING OUT THE POLYMERIZATION WHILE USING AS A COMBINED DISPERSING AND CATALYZING AGENT FOR SAID POLYMERIZATION, AND AS THE SOLE CATALYZING AGENT, AN OXIDIZED DISPERSING AGENT PREPARED BY PASSING OZONE-CONTAINING OXYGEN GAS CONTAINING MORE THAN ABOUT 1% BY WEIGHT OZONE, AS THE SOLE OXIDIZING AGENT, THROUGH AN AQUEOUS SOLUTION OF SAID WATER-SOLUBLE DISPERSING AGENT AT A TEMPERATURE OF ABOUT 0-70*C. UNTIL AT LEAST ABOUT 0.154 PART BY WEIGHT OF OZONE PER 100 PARTS BY WEIGHT OF DISSOLVED WATER-SOLUBLE DISPERSING AGENT HAVE PASSED INTO SAID AQUEOUS SOLUTION, SAID WATER-SOLUBLE DISPERSING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL BASE ROSIN SOAPS CONSISTING OF ALKALI METAL SALTS OF ABIETIC ACID, DEHYDROABIETIC ACID AND TETRAHYDROABIETIC ACID, ALKALI METAL BASE FATTY ACID SOAPS CONSISTING OF ALKALI METAL SALTS OF ALIPHATIC CARBOXYLIC ACIDS CONTAINING 5-25 CARBON ATOMS AND FROM 0-3 OLEFINIC LINKAGES, ALKALI METAL SALTS OF CONDENSATES OF NAPHTHALENE SULFONIC ACIDS WITH FORMALDEHYDE, ALKALI METAL SALTS OF ALKYL ARYL SULFONATES, AND ETHYLENE OXIDE CONDENSATES WITH ALKYL PHENOLS.
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) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |