US2494002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Creaming of mixtures of synthetic rubber latices of different average particle sizes
Assignee: Uniroyal Inc
•
Filing: 1946-01-11
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Granted: 1950-01-10
•
Expires: 1966-01-11
Abstract
No abstract record available.
Inventors
- 👤 John S Rumbold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:13
CPC Classifications
C; C08; C08C; C08C1/00; C08C1/02; C08C1/075; C08C1/08; Y; Y10; Y10S; Y10S260/00; Y10S260/22; Y10S526/00; Y10S526/909; Y10S528/00; Y10S528/931; Y10S528/934; Y10S528/937
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
THE IMPROVEMENT IN THE CREAMING WITH HYDROPHILIC COLLOIDAL CREAMING AGENTS OF SYNTHETIC RUBBER LATICES COMPRISING AQUEOUS EMULSION POLYMERIZATES OF POLYMERIZABLE MATERIAL SELECTED FROM THE GROUP CONSISTING OF BUTADIENES-1,3 AND MIXTURES OF BUTADIENES-1,3 WITH UP TO 70% OF SAID MIXTURE OF MATERIAL WHICH CONTAINS A CH2=C< GROUP AND IS COPOLYMERIZABLE WITH BUTADIENES-1,3 WHICH COMPRISES CREAMING WITH A HYDROPHILIC COLLOIDAL CREAMING AGENT A MIXTURE OF SUCH EMULSION POLYMERIZATES OF THE SAME POLYMERIZABLE CHEMICAL MATERIAL OF DIFFERENT AVERAGE PARTICLE SIZES SUCH THAT THE AVERAGE PARTICLE DIAMETER OF THE MIXTURE IS AT LEAST .05 MICRON GREATER THAN THE AVERAGE PARTICLE DIAMETER OF THE COMPONENT EMULSION POLYMERIZATE OF SMALLEST AVERAGE PARTICLE SIZE, THE AVERAGE PARTICLE DIAMETERS OF THE COMPONENT EMULSION POLYMERIZATES BEING FROM .07 TO 1 MICRON.
Claim 2
Dependent Claim
122 words
THE IMPROVEMENT IN THE CREAMING WITH HYDROPHILIC COLLOIDAL CREAMING AGENTS OF SYNTHETIC RUBBER LATICES COMPRISING AQUEOUS EMULSION POLYMERIZATES OF POLYMERIZABLE MATERIAL SELECTED FROM THE GROUP CONSISTING OF BUTADIENES-1,3 AND MIXTURES OF BUTADIENES-1,3 WITH UP TO 70% OF SAID MIXTURE OF MATERIAL WHICH CONTAINS A CH2=C< GROUP AND IS COPOLYMERIZABLE WITH BUTADIENES-1,3 WHICH COMPRISES CREAMING WITH A HYDROPHILIC COLLOIDAL CREAMING AGENT A MIXTURE OF SUCH EMULSION POLYMERIZATES OF THE SAME POLYMERIZABLE CHEMICAL MATERIAL OF DIFFERENT AVERAGE PARTICLE SIZES SUCH THAT THE AVERAGE PARTICLE DIAMETER OF THE MIXTURE IS AT LEAST .05 MICRON GREATER THAN THE AVERAGE PARTICLE DIAMETER OF THE COMPONENT EMULSION POLYMERIZATE OF SMALLEST AVERAGE PARTICLE SIZE, THE AVERAGE PARTICLE DIAMETERS OF THE COMPONENT EMULSION POLYMERIZATES BEING FROM .07 TO 1 MICRON.
References Cited (Backward Citations)
US2357861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |