US3255127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric materials
Assignee: Bayer AG
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Filing: 1962-06-12
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Granted: 1966-06-07
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Expires: 1982-06-12
Abstract
No abstract record available.
Inventors
- 👤 Bonin Wulf Von
- 👤 Bartl Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:26
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/32; Y; Y10; Y10S; Y10S526/00; Y10S526/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
PROCESS WHICH COMPRISES THE STEPS OF FORMING A WATER-IN-OIL EMULSION COMPRISING A MONOMER SELECTED FROM THE GROUP CONSISTING OF STYRENE, AN ESTER OF METHACRYLIC ACID WITH AN ALIPHATIC SATURATED MONOHYDRIC ALCOHOL HAVING FROM 1 UP TO 6 CARBON ATOMS, AND AN ESTER OF ACRYLIC ACID WITH AN ALIPHATIC SATURATED MONOHYDRIC ALCOHOL HAVING FROM 1 UP TO 6 CARBON ATOMS AS THE DISPERSION MEDIUM AND WATER AS THE DISPERSE PHASE IN THE PRESENCE OF 0.1 TO 30% BY WEIGHT, BASED ON THE WEIGHT OF SAID MONOMER, OF AN EMULSIFIER, THE WEIGHT RATIO OF MONOMER TO WATER IN SAID REVERSED EMULSION BEING BETWEEN 100:5 AND 1:80, FORMING A DISPERSION OF SAID WATER-IN-OIL EMUSLION AS THE DISPERSE PHASE IN AN AQUEOUS MEDIUM, THE VOLUME RATIO OF SAID WATER-IN-OIL EMULSION OF SAID DISPERSE PHASE AND THE SAID AQUESOUS DISPERSION MEDIUM BEING BETWEEN 3:1 AND 1:40, AND THEREAFTER POLYMERIZING RESULTING DISPERSION IN THE PERSENCE OF A CATALYTIC AMOUNT OF A POLYMERIZATION CATALYST FOR SAID MONOMER.
Claim 2
Dependent Claim
160 words
PROCESS WHICH COMPRISES THE STEPS OF FORMING A WATER-IN-OIL EMULSION COMPRISING A MONOMER SELECTED FROM THE GROUP CONSISTING OF STYRENE, AN ESTER OF METHACRYLIC ACID WITH AN ALIPHATIC SATURATED MONOHYDRIC ALCOHOL HAVING FROM 1 UP TO 6 CARBON ATOMS, AND AN ESTER OF ACRYLIC ACID WITH AN ALIPHATIC SATURATED MONOHYDRIC ALCOHOL HAVING FROM 1 UP TO 6 CARBON ATOMS AS THE DISPERSION MEDIUM AND WATER AS THE DISPERSE PHASE IN THE PRESENCE OF 0.1 TO 30% BY WEIGHT, BASED ON THE WEIGHT OF SAID MONOMER, OF AN EMULSIFIER, THE WEIGHT RATIO OF MONOMER TO WATER IN SAID REVERSED EMULSION BEING BETWEEN 100:5 AND 1:80, FORMING A DISPERSION OF SAID WATER-IN-OIL EMUSLION AS THE DISPERSE PHASE IN AN AQUEOUS MEDIUM, THE VOLUME RATIO OF SAID WATER-IN-OIL EMULSION OF SAID DISPERSE PHASE AND THE SAID AQUESOUS DISPERSION MEDIUM BEING BETWEEN 3:1 AND 1:40, AND THEREAFTER POLYMERIZING RESULTING DISPERSION IN THE PERSENCE OF A CATALYTIC AMOUNT OF A POLYMERIZATION CATALYST FOR SAID MONOMER.
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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |