US3635867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization process for making aqueous acrylic-containing emulsions
Assignee: Union Oil Company of California
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Filing: 1967-12-05
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Granted: 1972-01-18
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Expires: 1987-12-05
Abstract
Abstract A PROCESS FOR PRODUCING THE IMPROVED AQUEOUS ACRYLICCONTAINING EMULSIONS FOR BLISTER RESISTANT PAINTS AND TO THE PRODUCTS THEREOF PREPARED BY THE ADDITION OF A AMINO RESIN PRIOR TO OR DURING THE POLYMERIZATION IN AN AQUEOUS SOLUTION, OF AN ALKYL ESTER OF A POLYMERIZABLE ALPHA BETA UNSATURATED MONOCARBOXYLIC ACID AND A MONOMER CONTAINING A SINGLE H2C=C GROUP. THE POLYMERIZATION OCCURS IN THE PRESENCE OF A POLYMERIZABLE UNSATURATED CARBOXYLIC ACID, A CATALYTIC AMOUNT OF A FREE RADICAL POLMERIZATION CATALYST AND A SURFACTANT. THE INTERPOLYMER FORMED IS CAPABLE OF CONTINOUS FILM FORMATION AT 40*C. OR BELOW.
Inventors
- 👤 Ernest Clark Yuille
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:13
CPC Classifications
C; C08; C08F; C08F283/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |