US2802806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber treatment
Assignee: Uniroyal Inc
•
Filing: 1953-11-18
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Granted: 1957-08-13
•
Expires: 1973-11-18
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Doak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:06
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A PROCESS WHICH COMPRISES MIXING RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, SYNTHETIC RUBBERY HOMOPOLYMERS OF ALIPHATIC CONJUGATED DIOLEFIN HYDROCARABONS SELECTED FROM THE GROUP CONSISTING OF BUTADIENE AND ISOPRENE, AND SYNTHETIC RUBBERY COPOLYMERS OF THE SAID ALIPHATIC CONJUGATED DIOLEFIN HYDROCRABONS WITH A COPOLYMERIZEABLE MONOOLEFINIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ISOBUTYLENE, STYRENE, ALPHA-METHYL STYRENE, METHYL ACRYLATE, ETHYL ACRYLATE, METHYL METHACRYLATE, ACRYLONITRILE, METHYL VINYL KETONE, METHYL ISOPROPENYL KETONE AND MONOVINYLPYRIDIENS WITH A RELATIVELY LARGE AMOUNT OF RUBBER-REINFORCING CARBON BLACK, AND HEXACHLOROPROPENE IN AMOUNT EQUAL TO FROM 0.5 TO 3 PARTS PER 100 PARTS OF SAID RUBBER, HEATING THE MIXTURE AT A TEMPERATURE OF AT LEAST 275*F. BUT BELOW THAT AT WHICH THE RUBBER WOULD BE HARMED, THEREAFTER INCORPORATING VULCANIZING AND OTHER DESIRED INGREDIENTS, SHAPING THE MASS, AND VULCANIZING THE RESULTING SHAPED MASS.
Claim 2
Dependent Claim
134 words
A PROCESS WHICH COMPRISES MIXING RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, SYNTHETIC RUBBERY HOMOPOLYMERS OF ALIPHATIC CONJUGATED DIOLEFIN HYDROCARABONS SELECTED FROM THE GROUP CONSISTING OF BUTADIENE AND ISOPRENE, AND SYNTHETIC RUBBERY COPOLYMERS OF THE SAID ALIPHATIC CONJUGATED DIOLEFIN HYDROCRABONS WITH A COPOLYMERIZEABLE MONOOLEFINIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ISOBUTYLENE, STYRENE, ALPHA-METHYL STYRENE, METHYL ACRYLATE, ETHYL ACRYLATE, METHYL METHACRYLATE, ACRYLONITRILE, METHYL VINYL KETONE, METHYL ISOPROPENYL KETONE AND MONOVINYLPYRIDIENS WITH A RELATIVELY LARGE AMOUNT OF RUBBER-REINFORCING CARBON BLACK, AND HEXACHLOROPROPENE IN AMOUNT EQUAL TO FROM 0.5 TO 3 PARTS PER 100 PARTS OF SAID RUBBER, HEATING THE MIXTURE AT A TEMPERATURE OF AT LEAST 275*F. BUT BELOW THAT AT WHICH THE RUBBER WOULD BE HARMED, THEREAFTER INCORPORATING VULCANIZING AND OTHER DESIRED INGREDIENTS, SHAPING THE MASS, AND VULCANIZING THE RESULTING SHAPED MASS.
References Cited (Backward Citations)
US2118601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |