Patent US2625525A successfully refreshed from Google Patents.
US2625525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terpolymers of sulfur dioxide, monoolefinic materials and a liquid polymer of a conjugated diene, and their production
Assignee: Phillips Petroleum Co
•
Filing: 1949-11-17
•
Granted: 1953-01-13
•
Expires: 1969-11-17
Abstract
No abstract record available.
Inventors
- 👤 Charles S Lynch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:16
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/20; C08G75/205; C08G75/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A LATEX COMPRISING A FINELY DIVIDED RESINOUS MATERIAL PRESENT AS A STABLE DISPERSION IN AN AQUEOUS MEDIUM, PREPARED BY EMULSIFYING A MONOOLEFINIC ORGANIC COMPOUND AND FROM 0.3 TO 15 PER CENT OF A POLYBUTADIENE BASED ON THE WEIGHT ABOVE SAID MONOOLEFINIC COMPOUND AND HAVING A MOLECULAR WEIGHT OF 500, AND A VISCOSITY AT 100* F. BELOW 10,000 SAYBOLT FUROL SECONDS IN AN AQUEOUS MEDIUM, IN AN EMULSION OF THE OILIN-WATER TYPE, AND IN THE PRESENCE OF SULFUR DIOXIDE IN AN AMOUNT STOICHIOMETRICALLY IN EXCESS OF SAID MONOOLEFIN ORGANIC COMPOUND, AND INTERREACTING SAID SULFUR DIOXIDE, SAID POLYBUTADIENE AND SAID MONOOLEFIN ORGANIC COMPOUND WHILE IN SAID AQUEOUS MEDIUM.
Claim 2
Dependent Claim
106 words
A LATEX COMPRISING A FINELY DIVIDED RESINOUS MATERIAL PRESENT AS A STABLE DISPERSION IN AN AQUEOUS MEDIUM, PREPARED BY EMULSIFYING A MONOOLEFINIC ORGANIC COMPOUND AND FROM 0.3 TO 15 PER CENT OF A POLYBUTADIENE BASED ON THE WEIGHT ABOVE SAID MONOOLEFINIC COMPOUND AND HAVING A MOLECULAR WEIGHT OF 500, AND A VISCOSITY AT 100* F. BELOW 10,000 SAYBOLT FUROL SECONDS IN AN AQUEOUS MEDIUM, IN AN EMULSION OF THE OILIN-WATER TYPE, AND IN THE PRESENCE OF SULFUR DIOXIDE IN AN AMOUNT STOICHIOMETRICALLY IN EXCESS OF SAID MONOOLEFIN ORGANIC COMPOUND, AND INTERREACTING SAID SULFUR DIOXIDE, SAID POLYBUTADIENE AND SAID MONOOLEFIN ORGANIC COMPOUND WHILE IN SAID AQUEOUS MEDIUM.
References Cited (Backward Citations)
US2146276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |