Patent US3095398A successfully refreshed from Google Patents.
US3095398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of increasing the particle size of synthetic rubber latex
Assignee: Uniroyal Inc
•
Filing: 1960-01-28
•
Granted: 1963-06-25
•
Expires: 1980-01-28
Abstract
No abstract record available.
Inventors
- 👤 Louis H Howland
- 👤 Victor S Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:26
CPC Classifications
C; C08; C08C; C08C1/00; C08C1/02; C08C1/065; C08C1/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
THE METHOD WHICH COMPRISES TREATING A SYNTHETIC RUBBER LATEX WHICH IS AN AQUEOUS EMULSION POLYMERIZATE OF SYNTHETIC RUBBER FORMING MONOMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF BUTDIENE-1,3, ISOPRENE, 2,3DIMETHYL BUTADIENE-1,3, AND PIPERYLENE, AND MIXTURES THEREOF, AND MIXTURE OF SUCH BUTADIENES-1,3 WITH UP TO 70% BY WEIGHT OF SUCH MIXTURES OF MONOETHYLENIC COMPOUNDS WHICH CONTAIN A CH-=C< GROUP AND ARE COPOLYERIZABLE WITH BUTDIENES-1,3, AND WHICH HAS BEEN POLYMERIZED TO A LATEX OF 60% TO 95% CONVERSION, IN THE PRESENCE OF AT LEAST 5% OF RESIDUAL UNREACTED POLYMERIZABLE MONOMERIC MATERIAL BASED ON THE WEIGHT OF THE ORIGINAL SYNTHETIC RUBBER FORMING MONOMERIC MATERIAL WITH 0.02 TO 2 PARTS OF POLYVINYL ALOCOHOL PER 100 PARTS BY WEIGHT OF ORIGINAL SYNTHETIC RUBBER FORMING MONOMERIC MATERIAL AT A TEMPERATURE FROM 0*C, TO 15*C., SAID POLYVINYL ALCOHOL HAVING A VISCOSITY IN 4% AQUEOUS SOLUTION AT 20*C. FROM 4 TO 70 CENTIPOISES, AND THEN REMOVING UNREACTED MONOMERIC MATERIAL FROM THE LATEX.
Claim 2
Independent Claim
154 words
THE METHOD WHICH COMPRISES TREATING A SYNTHETIC RUBBER LATEX WHICH IS AN AQUEOUS EMULSION POLYMERIZATE OF SYNTHETIC RUBBER FORMING MONOMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF BUTDIENE-1,3, ISOPRENE, 2,3DIMETHYL BUTADIENE-1,3, AND PIPERYLENE, AND MIXTURES THEREOF, AND MIXTURE OF SUCH BUTADIENES-1,3 WITH UP TO 70% BY WEIGHT OF SUCH MIXTURES OF MONOETHYLENIC COMPOUNDS WHICH CONTAIN A CH-=C< GROUP AND ARE COPOLYERIZABLE WITH BUTDIENES-1,3, AND WHICH HAS BEEN POLYMERIZED TO A LATEX OF 60% TO 95% CONVERSION, IN THE PRESENCE OF AT LEAST 5% OF RESIDUAL UNREACTED POLYMERIZABLE MONOMERIC MATERIAL BASED ON THE WEIGHT OF THE ORIGINAL SYNTHETIC RUBBER FORMING MONOMERIC MATERIAL WITH 0.02 TO 2 PARTS OF POLYVINYL ALOCOHOL PER 100 PARTS BY WEIGHT OF ORIGINAL SYNTHETIC RUBBER FORMING MONOMERIC MATERIAL AT A TEMPERATURE FROM 0*C, TO 15*C., SAID POLYVINYL ALCOHOL HAVING A VISCOSITY IN 4% AQUEOUS SOLUTION AT 20*C. FROM 4 TO 70 CENTIPOISES, AND THEN REMOVING UNREACTED MONOMERIC MATERIAL FROM THE LATEX.
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |