US2564646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Haze resistant vinyl chloride polymers
Assignee: ARGUS CHEMICAL LAB Inc
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Filing: 1950-02-08
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Granted: 1951-08-14
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Expires: 1970-02-08
Abstract
No abstract record available.
Inventors
- 👤 William E Leistner
- 👤 Arthur C Hecker
- 👤 Olga H Knoepke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:49
CPC Classifications
C; C08; C08K; C08K5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A RESINOUS COMPOSITION COMPRISING A VINYL HALIDE RESIN, A METAL SALT STABILIZER DISPERSED IN THE RESIN, AND AN ANTI-CLOUDING AGENT RETARDING PRECIPITATION OF METAL FROM THE ANTI-CLOUDING WARMING THE COMPOSITION, THE ANTI-CLOUDING AGENT BEING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL PHOSPHITES AND SULFIDES AND DIALKYL AND DIARYL DERIVATIVES OF PHENOL, CRESOL AND XYLENOL AND THE ANTI-CLOUDING AGENT BEING SOLUBLE IN THE VINYL HALIDE RESIN AND SUBSTANTIALLY NON-VOLATILE.
Claim 2
Dependent Claim
72 words
A RESINOUS COMPOSITION COMPRISING A VINYL HALIDE RESIN, A METAL SALT STABILIZER DISPERSED IN THE RESIN, AND AN ANTI-CLOUDING AGENT RETARDING PRECIPITATION OF METAL FROM THE ANTI-CLOUDING WARMING THE COMPOSITION, THE ANTI-CLOUDING AGENT BEING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARYL PHOSPHITES AND SULFIDES AND DIALKYL AND DIARYL DERIVATIVES OF PHENOL, CRESOL AND XYLENOL AND THE ANTI-CLOUDING AGENT BEING SOLUBLE IN THE VINYL HALIDE RESIN AND SUBSTANTIALLY NON-VOLATILE.
References Cited (Backward Citations)
US2456216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |