Patent US2664407A successfully refreshed from Google Patents.
US2664407A
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Method of preserving a rubber which comprises treating the rubber with a solid resinous aralkylated dihydroquinoline antioxidant
Assignee: Monsanto Chemicals Ltd
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Filing: 1948-11-24
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Granted: 1953-12-29
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Expires: 1968-11-24
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Ingram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:56
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3437; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE METHOD OF PRESERVING A RUBBER WHICH COMPRISES TREATING THE RUBBER WITH A SOLID RESINOUS ARALKYLATED DIHYDROQUINOLINE ANTIOXIDANT COMPOSITION OBTAINED BY HEATING IN THE PRESENCE OF ONE MOLE OF A CATALYST FROM THE GROUP CONSISTING OF ALUMINUM CHLORIDE AND ZINC CHLORIDE ONE MOLE OF 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLINE AND SUBSTANTIALLY ONE MOLE OF A REAGENT SELECTED FROM THE GROUP CONSISTING OF PHENYL SUBSTITUTED METHYL CHLORIDES, SUBSTITUTED SOLELY BY PHENYL GROUPS, INDANYL CHLORIDE AND VINYL SUBSTITUTED AROMATIC COMPOUNDS OF THE BENZENE AND NAPHTHALENE SERIES CONTAINING AT LEAST ONE BUT NOT MORE THAN TWO CH2=CH- GROUPS AS THE SOLE OLEFINIC CONSTITUENTS.
Claim 2
Independent Claim
96 words
THE METHOD OF PRESERVING A RUBBER WHICH COMPRISES TREATING THE RUBBER WITH A SOLID RESINOUS ARALKYLATED DIHYDROQUINOLINE ANTIOXIDANT COMPOSITION OBTAINED BY HEATING IN THE PRESENCE OF ONE MOLE OF A CATALYST FROM THE GROUP CONSISTING OF ALUMINUM CHLORIDE AND ZINC CHLORIDE ONE MOLE OF 2,2,4-TRIMETHYL-1,2-DIHYDROQUINOLINE AND SUBSTANTIALLY ONE MOLE OF A REAGENT SELECTED FROM THE GROUP CONSISTING OF PHENYL SUBSTITUTED METHYL CHLORIDES, SUBSTITUTED SOLELY BY PHENYL GROUPS, INDANYL CHLORIDE AND VINYL SUBSTITUTED AROMATIC COMPOUNDS OF THE BENZENE AND NAPHTHALENE SERIES CONTAINING AT LEAST ONE BUT NOT MORE THAN TWO CH2=CH- GROUPS AS THE SOLE OLEFINIC CONSTITUENTS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |