Patent US2746897A successfully refreshed from Google Patents.
US2746897A
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Method for the manufacture of cellulose-reinforced rubber articles
Assignee: Akzona Inc
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Filing: 1953-12-14
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Granted: 1956-05-22
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Expires: 1973-12-14
Abstract
No abstract record available.
Inventors
- 👤 Roder Hugo Levin
- 👤 Hennemann George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:01
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/04; C08J5/06; B; B29; B29D; B29D30/00; B29D30/06; B29D30/38; B29D30/40; B60; B60C; B60C9/00; B60C9/0042; C08J2321/00; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/249933; Y10T442/00; Y10T442/20; Y10T442/2402; Y10T442/2762; Y10T442/277; Y10T442/2779
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A METHOD FOR THE MANUFACTURE OF COMPOSITE RUBBER ARTICLES WHICH ARE REINFORCED WITH PLIES OF CORD FABRIC MADE FROM CELLULOSE PRODUCTS IN WHICH THE CELLULOSE PRODUCT IS TREATED WITH A FINISHING AGENT, IS THEREAFTER EMBEDDED IN A MASS OF RUBBER, AND THE COMPOSITE MASS IS THEN VULCANIZED TO FORM THE DESIRED RUBBER ARTICLE, THE IMPROVED STEP OF EMPLOYING AS THE FINISHING AGENT A NITROGEN COMPOUND HAVING A HIGH DECOMPOSITION TEMPERATURE IN WHICH ONE NITROGEN VALENCE IS SATISFIED BY A HYDROPHOBIC, CHAINSHAPED RADICAL CONTAINING MORE THAN 14 METHYLENE GROUPS AND THE OTHER VALENCIES OF THE NITROGEN COMPOUND ARE SATISFIED BY AT LEAST FOUR ETHOXY GROUPS.
Claim 2
Dependent Claim
105 words
IN A METHOD FOR THE MANUFACTURE OF COMPOSITE RUBBER ARTICLES WHICH ARE REINFORCED WITH PLIES OF CORD FABRIC MADE FROM CELLULOSE PRODUCTS IN WHICH THE CELLULOSE PRODUCT IS TREATED WITH A FINISHING AGENT, IS THEREAFTER EMBEDDED IN A MASS OF RUBBER, AND THE COMPOSITE MASS IS THEN VULCANIZED TO FORM THE DESIRED RUBBER ARTICLE, THE IMPROVED STEP OF EMPLOYING AS THE FINISHING AGENT A NITROGEN COMPOUND HAVING A HIGH DECOMPOSITION TEMPERATURE IN WHICH ONE NITROGEN VALENCE IS SATISFIED BY A HYDROPHOBIC, CHAINSHAPED RADICAL CONTAINING MORE THAN 14 METHYLENE GROUPS AND THE OTHER VALENCIES OF THE NITROGEN COMPOUND ARE SATISFIED BY AT LEAST FOUR ETHOXY GROUPS.
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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) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |