Patent US3078246A successfully refreshed from Google Patents.
US3078246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freeze stable synthetic latex and method of making same
Assignee: Bridgestone Firestone Inc
•
Filing: 1957-10-03
•
Granted: 1963-02-19
•
Expires: 1977-10-03
Abstract
No abstract record available.
Inventors
- 👤 John H Musch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:40
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A FREEZE-STABLE LATEX OF AN AQUEOUS EMULSION COPOLYMER OF FROM 27 TO 39 PARTS BY WEIGHT OF 1,3-BUTADIENE AND CORRESPONDING 73 TO 61 PARTS BY WEIGHT OF STYRENE COPOLYMERIZED AT A TEMPERATURE OF BETWEEN WBOUT 20* C. AND ABOUT 150*C. IN THE PRESENCE OF FROM ABOUT 100 TO 300 PARTS BY WEIGHT OF WATER, FROM ABOUT 1.0 TO ABOUT 2.0 PARTS BU WEIGHT OF A WATER SOLUBLE SALT OF PERSULFURIC ACIDS AN INITIAL CHARGE OF FROM 0.05 TO ABOUT 2 PARTS BY WEIGHT OF AN ANIONIC EMULSIFIER AND 0.3 TO ABOUT 1 PART BY WEIGHT OF AN OIL SOLUBLE, NONIONIC ALKYLARYL POLYALKOXY ALCOHOL HAVING THE STRUCTURAL FORMULA:
Claim 2
Dependent Claim
107 words
A FREEZE-STABLE LATEX OF AN AQUEOUS EMULSION COPOLYMER OF FROM 27 TO 39 PARTS BY WEIGHT OF 1,3-BUTADIENE AND CORRESPONDING 73 TO 61 PARTS BY WEIGHT OF STYRENE COPOLYMERIZED AT A TEMPERATURE OF BETWEEN WBOUT 20* C. AND ABOUT 150*C. IN THE PRESENCE OF FROM ABOUT 100 TO 300 PARTS BY WEIGHT OF WATER, FROM ABOUT 1.0 TO ABOUT 2.0 PARTS BU WEIGHT OF A WATER SOLUBLE SALT OF PERSULFURIC ACIDS AN INITIAL CHARGE OF FROM 0.05 TO ABOUT 2 PARTS BY WEIGHT OF AN ANIONIC EMULSIFIER AND 0.3 TO ABOUT 1 PART BY WEIGHT OF AN OIL SOLUBLE, NONIONIC ALKYLARYL POLYALKOXY ALCOHOL HAVING THE STRUCTURAL FORMULA:
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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |