US2624719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat stabilized molding compositions of vinyl aromatic polymers and method of makingthe same
Assignee: Dow Chemical Co
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Filing: 1950-03-31
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Granted: 1953-01-06
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Expires: 1970-03-31
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Roche
- 👤 Raymond M Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:27
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/06; C08K5/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A MOLDING COMPOSITION COMPRISING ESSENTIALLY A THERMOPLASTIC MONOVINYL AROMATIC POLYMER OF A MONOVINYL AROMATIC COMPOUND HAVING THE VINYL RADICAL DIRECTLY ATTACHED TO A CARBON ATOM OF A BENZENE NUCLEUS TOGETHER WITH FROM 0.04 TO 3 PER CENT BY WEIGHT OF AN ACYCLIC ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC SECONDARY ALCOHOLS AND ETHER-ALCOHOLS COMPOSED OF C, H, AND O ATOMS, WHICH COMPOUND HAS A MOLECULAR WEIGHT OF LESS THAN 300 AND CONTAINS AN HYDROXYL GROUP ATTACHED TO A SECONDARY CARBON ATOM IN THE MOLECULE.
Claim 2
Dependent Claim
86 words
A MOLDING COMPOSITION COMPRISING ESSENTIALLY A THERMOPLASTIC MONOVINYL AROMATIC POLYMER OF A MONOVINYL AROMATIC COMPOUND HAVING THE VINYL RADICAL DIRECTLY ATTACHED TO A CARBON ATOM OF A BENZENE NUCLEUS TOGETHER WITH FROM 0.04 TO 3 PER CENT BY WEIGHT OF AN ACYCLIC ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC SECONDARY ALCOHOLS AND ETHER-ALCOHOLS COMPOSED OF C, H, AND O ATOMS, WHICH COMPOUND HAS A MOLECULAR WEIGHT OF LESS THAN 300 AND CONTAINS AN HYDROXYL GROUP ATTACHED TO A SECONDARY CARBON ATOM IN THE MOLECULE.
References Cited (Backward Citations)
US2459746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |