US2684348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions comprising an acrylonitrile polymer, an alkali metal or alkaline earth metal thiocyanate, and an aliphatic alcohol
Assignee: EIDP Inc
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Filing: 1952-02-07
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Granted: 1954-07-20
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Expires: 1972-02-07
Abstract
No abstract record available.
Inventors
- 👤 Melvin A Dietrich
- 👤 Albert F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:51
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/30; C08K5/00; C08K5/04; C08K5/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A SOLID, ESSENTIALLY NON-AQUEOUS COMPOSITION CONTAINING 33-75% OF AN ACRYLONITRILE POLYMER OF MAJOR ACRYLONITRILE CONTENT, 18-46% OF A METAL THIOCYANATE OF THE CLASS CONSISTING OF ALKALI METAL THIOCYANATES AND ALKALINE EARTH METAL THIOCYANATES, AND 5-33% OF AN ALIPHATIC ALCOHOL WHICH HAS AT LEAST ONE ALCOHOL HYDROXYL PER FIVE CARBONS, IS LIQUID AT 25* C., AND IS SOLUBLE IN WATER TO THE EXTENT OF AT LEAST 2% AT 20* C., IN WHICH COMPOSITION THE WEIGHT RATIO OF SALT TO POLYMER IS FROM 3:10 TO 1:1 AND THE WEIGHT RATIO OF SALT TO ALCOHOL IS FROM 1:1 TO 5:1.
Claim 2
Dependent Claim
97 words
A SOLID, ESSENTIALLY NON-AQUEOUS COMPOSITION CONTAINING 33-75% OF AN ACRYLONITRILE POLYMER OF MAJOR ACRYLONITRILE CONTENT, 18-46% OF A METAL THIOCYANATE OF THE CLASS CONSISTING OF ALKALI METAL THIOCYANATES AND ALKALINE EARTH METAL THIOCYANATES, AND 5-33% OF AN ALIPHATIC ALCOHOL WHICH HAS AT LEAST ONE ALCOHOL HYDROXYL PER FIVE CARBONS, IS LIQUID AT 25* C., AND IS SOLUBLE IN WATER TO THE EXTENT OF AT LEAST 2% AT 20* C., IN WHICH COMPOSITION THE WEIGHT RATIO OF SALT TO POLYMER IS FROM 3:10 TO 1:1 AND THE WEIGHT RATIO OF SALT TO ALCOHOL IS FROM 1:1 TO 5:1.
References Cited (Backward Citations)
US2533224A
Cited
US2558730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |