US2943070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prevention of development of color by iron compounds in plastics
Assignee: Argus Chemical Corp
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Filing: 1957-10-11
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Granted: 1960-06-28
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Expires: 1977-10-11
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Hecker
- 👤 Mark W Pollock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:47
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/053; C04; C04B; C04B26/00; C04B26/02; C04B26/04; C04B26/08; C08K7/00; C08K7/02; C08K7/04; C08K7/10; C08K7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A POLYVINYL CHLORIDE RESIN COMPOSITION RESISTANT WHEN HEATED AT ELEVATED TEMPERATURES TO THE DEVELOPMENT OF DISCOLORATION DUE TO IRON COMPOUNDS PRESENT IN ASBESTOS AS NATURALLY-OCCURRING, CONSISTING ESSENTIALLY OF A POLYVINYL CHLORIDE RESIN, NATURALLY-OCCURRING ASBESTOS CONTAINING IRON COMPOUNDS IN AN AMOUNT TO DISCOLOR THE POLYVINYL CHLORIDE WHEN HEATED, AND AN AMOUNT TO INHIBIT SUCH DISCOLORATION OF A SATURATED ORGANIC POLYHYDROXY COMPOUND HAVING AT LEAST TWO TO ABOUT EIGHT ALCOHOLIC HYDROXYL GROUPS FOR EACH TWO TO ABOUT FIFTEEN CARBON ATOMS.
Claim 2
Dependent Claim
78 words
A POLYVINYL CHLORIDE RESIN COMPOSITION RESISTANT WHEN HEATED AT ELEVATED TEMPERATURES TO THE DEVELOPMENT OF DISCOLORATION DUE TO IRON COMPOUNDS PRESENT IN ASBESTOS AS NATURALLY-OCCURRING, CONSISTING ESSENTIALLY OF A POLYVINYL CHLORIDE RESIN, NATURALLY-OCCURRING ASBESTOS CONTAINING IRON COMPOUNDS IN AN AMOUNT TO DISCOLOR THE POLYVINYL CHLORIDE WHEN HEATED, AND AN AMOUNT TO INHIBIT SUCH DISCOLORATION OF A SATURATED ORGANIC POLYHYDROXY COMPOUND HAVING AT LEAST TWO TO ABOUT EIGHT ALCOHOLIC HYDROXYL GROUPS FOR EACH TWO TO ABOUT FIFTEEN CARBON ATOMS.
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) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |