US3356623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for using humic acids and lignin in vulcanizable rubber
Assignee: FMC Corp
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Filing: 1964-03-16
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Granted: 1967-12-05
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Expires: 1984-03-16
Abstract
No abstract record available.
Inventors
- 👤 Nelson N Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:56
CPC Classifications
C; C08; C08L; C08L9/00; C08L9/06; C08L9/08; C08L21/00; C08L97/00; C08L97/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
PROCESS FOR PRODUCING A COMPLETELY FORMULATED, VULCANIZABLE RUBBER STOCK COMPRISING DISPERSING DESIRED FILLERS, MODIFIERS AND CURING AGENTS ALONG WITH AN EFFECTIVE AMOUNT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A WATER-SOLUBLE HUMATE AND A WATER-SOLUBLE LIGNIN SALT AS A DISPERSING AGENT IN A LATEX OF RUBBER, PRECIPITATING SAID DISPERSING AGENT IN SITU BY ADDING A WATER-SOLUBLE ZINC COMPOUND IN AN AMOUNT EQUIVALENT TO AT LEAST 5 PARTS OF ZINC PER 100 PARTS OF RUBBER AND AN ACID WHICH DOES NOT FORM AN INSOLUBLE SALT WITH SAID ZINC COMPOUND IN AMOUNTS SUFFICIENT TO NEUTRALIZE SAID DISPERSION, AND RECOVERING A COMPLETELY FORMULATED, VULCANIZABLE RUBBER PRODUCT.
Claim 2
Dependent Claim
105 words
PROCESS FOR PRODUCING A COMPLETELY FORMULATED, VULCANIZABLE RUBBER STOCK COMPRISING DISPERSING DESIRED FILLERS, MODIFIERS AND CURING AGENTS ALONG WITH AN EFFECTIVE AMOUNT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A WATER-SOLUBLE HUMATE AND A WATER-SOLUBLE LIGNIN SALT AS A DISPERSING AGENT IN A LATEX OF RUBBER, PRECIPITATING SAID DISPERSING AGENT IN SITU BY ADDING A WATER-SOLUBLE ZINC COMPOUND IN AN AMOUNT EQUIVALENT TO AT LEAST 5 PARTS OF ZINC PER 100 PARTS OF RUBBER AND AN ACID WHICH DOES NOT FORM AN INSOLUBLE SALT WITH SAID ZINC COMPOUND IN AMOUNTS SUFFICIENT TO NEUTRALIZE SAID DISPERSION, AND RECOVERING A COMPLETELY FORMULATED, VULCANIZABLE RUBBER PRODUCT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |