US3428691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Age resistors for rubber
Assignee: Goodyear Tire and Rubber Co
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Filing: 1964-12-21
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Granted: 1969-02-18
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Ronald B Spacht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:54
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A REACTION PRODUCT PREPARED BY (1) REACTING A MIXTURE COMPRISING (A) AT LEAST ONE CHLOROMETHYLATED DIPHENYL OXIDE SELECTED FROM THE GROUP CONSISTING OF MONOCHLOROMETHYLATED DIPHENYL OXIDE, DICHLOROMETHYLATED DIPHENYL OXIDE AND TRICHLOROMETHYLATED DIPHENYL OXIDE AND (B) AT LEAST ONE MOL PER REPLACEABLE CHLORINE ATOM IN THE CHLOROMETHYLATED DIPHENYL OXIDE OF A MONO-OR DIHYDRIC PHENOLIC COMPOUND HAVING AT LEAST TOW FREE POSITIONS FROM THE ORTHO AND PARA POSITIONS AND WHEREIN THE SUBSTITUENTS ARE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, METHYL, ETHYL, ISOPROPYL, T-BUTYL, CHLORO AND METHOXY; AT A TEMERATURE OF FROM 30*C. TO 150*C. AND (2) SUBSEQUENTLY REACTING THE FIRST FORMED PRODUCT WITH AT LEAST ONE MOL OF A TERTIARY OLEFINIC COMPOUND CONTAINING FROM 4 TO 8 CARBON ATOMS PER MOL OF THE FIRST FORMED PRODUCT IN THE PRESENCE OF AN ACIDIC ALKYLATION CATALYST AND AT A TEMPERATURE OF FROM 30*C. TO 100*C.
Claim 2
Dependent Claim
142 words
A REACTION PRODUCT PREPARED BY (1) REACTING A MIXTURE COMPRISING (A) AT LEAST ONE CHLOROMETHYLATED DIPHENYL OXIDE SELECTED FROM THE GROUP CONSISTING OF MONOCHLOROMETHYLATED DIPHENYL OXIDE, DICHLOROMETHYLATED DIPHENYL OXIDE AND TRICHLOROMETHYLATED DIPHENYL OXIDE AND (B) AT LEAST ONE MOL PER REPLACEABLE CHLORINE ATOM IN THE CHLOROMETHYLATED DIPHENYL OXIDE OF A MONO-OR DIHYDRIC PHENOLIC COMPOUND HAVING AT LEAST TOW FREE POSITIONS FROM THE ORTHO AND PARA POSITIONS AND WHEREIN THE SUBSTITUENTS ARE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, METHYL, ETHYL, ISOPROPYL, T-BUTYL, CHLORO AND METHOXY; AT A TEMERATURE OF FROM 30*C. TO 150*C. AND (2) SUBSEQUENTLY REACTING THE FIRST FORMED PRODUCT WITH AT LEAST ONE MOL OF A TERTIARY OLEFINIC COMPOUND CONTAINING FROM 4 TO 8 CARBON ATOMS PER MOL OF THE FIRST FORMED PRODUCT IN THE PRESENCE OF AN ACIDIC ALKYLATION CATALYST AND AT A TEMPERATURE OF FROM 30*C. TO 100*C.
References Cited (Backward Citations)
US2911380A
Cited
FR1217309A
Cited
DE1092026B
Cited
US3054773A
Cited
US3038878A
Cited
GB962682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |