Patent US4269504A successfully refreshed from Google Patents.
Patent US2905655A successfully refreshed from Google Patents.
US2905655A
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US
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Carbon disulfide-phenylenediamine reaction products in rubber
Assignee: Bridgestone Firestone Inc
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Filing: 1956-01-31
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Granted: 1959-09-22
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Expires: 1976-01-31
Abstract
No abstract record available.
Inventors
- 👤 Harry E Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:22
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/39; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A VULCANIZED RUBBER COMPOSITION CONTAINING A SMALL AMOUNT OF A REACTION PRODUCT OF 0.5 TO 2.0 MOLES OF CARBON DISULFIDE AND 1.0 MOLE OF A SUBSTANCE FROM THE GROUPE CONSISTING OF THE SUBSTITUTED ORTHO-PHENYLENEDIAMINES AND THE SUBSTITUTED PARA-PHENYLENEDIAMINES BOTH HAVING THE FORMULA RHNC6H4NHR'' IN WHICH R AND R" ARE EACH FROM THE CLASS CONSISTING OF ALKYL GROUPS OF 1 TO 12 CARBON ATOMS, AND CYCLOAKYL GROUPS OF NOT MORE THAN 12 CARBON ATOMS, THE RUBBER BEING FROM THE CLASS SCONSISTING OF NATURAL RUBBER, HOMOPOLYMERS OF ALIPATIC CONJUGATED DIOLEFIN HYDROCARBONS, AND COPOLYMERS OF SUCH HYDROCARBONS WITH EACH OTHE RETHYLENICALLY UNSATURATED COPOLYMERIZABLE MONOMERIC COMPOUNDS.
Claim 2
Dependent Claim
102 words
A VULCANIZED RUBBER COMPOSITION CONTAINING A SMALL AMOUNT OF A REACTION PRODUCT OF 0.5 TO 2.0 MOLES OF CARBON DISULFIDE AND 1.0 MOLE OF A SUBSTANCE FROM THE GROUPE CONSISTING OF THE SUBSTITUTED ORTHO-PHENYLENEDIAMINES AND THE SUBSTITUTED PARA-PHENYLENEDIAMINES BOTH HAVING THE FORMULA RHNC6H4NHR'' IN WHICH R AND R" ARE EACH FROM THE CLASS CONSISTING OF ALKYL GROUPS OF 1 TO 12 CARBON ATOMS, AND CYCLOAKYL GROUPS OF NOT MORE THAN 12 CARBON ATOMS, THE RUBBER BEING FROM THE CLASS SCONSISTING OF NATURAL RUBBER, HOMOPOLYMERS OF ALIPATIC CONJUGATED DIOLEFIN HYDROCARBONS, AND COPOLYMERS OF SUCH HYDROCARBONS WITH EACH OTHE RETHYLENICALLY UNSATURATED COPOLYMERIZABLE MONOMERIC COMPOUNDS.
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) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |