US3300541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vulcanisable mixtures and products obtainable therefrom
Assignee: Nobel Bozel SA
•
Filing: 1960-02-23
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Granted: 1967-01-24
•
Expires: 1980-02-23
Abstract
No abstract record available.
Inventors
- 👤 Cyril X G Latty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:03
CPC Classifications
C; C08; C08L; C08L21/00; C08K; C08K5/00; C08K5/04; C08K5/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
A RUBBER COMPOSITION CONSISTING ESSENTIALLY OF A RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, AND SYNTHETIC RUBBERY POLYMERS OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF CONJUGATED DIOLEFINS AND CHLOROPRENE; ABOUT 1 TO 1.5% BY WEIGHT OF THE RUBBER OF AT LEAST ONE ORGANIC PEROXIDE; AT LEAST ONE VULCANIZING AGENT SELECTED FROM THE GROUP CONSISTING OF SULFUR, TETRA-LOWER-ALKYL THIURAM BISULPHIDES, AND MIXTURES THEREOF, THE AMOUNT OF SAID VULCANIZING AGENT BEING FROM ABOUT 0.2 TO 0.6% BY WEIGHT OF THE RUBBER; SAID COMPOSITION BEING SUBSTANTIALLY FREE OF WATER, ZINC, PLASTICING OILS, CARBON BLACK, SILICA, AND CHALK FILLERS.
Claim 2
Dependent Claim
101 words
A RUBBER COMPOSITION CONSISTING ESSENTIALLY OF A RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, AND SYNTHETIC RUBBERY POLYMERS OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF CONJUGATED DIOLEFINS AND CHLOROPRENE; ABOUT 1 TO 1.5% BY WEIGHT OF THE RUBBER OF AT LEAST ONE ORGANIC PEROXIDE; AT LEAST ONE VULCANIZING AGENT SELECTED FROM THE GROUP CONSISTING OF SULFUR, TETRA-LOWER-ALKYL THIURAM BISULPHIDES, AND MIXTURES THEREOF, THE AMOUNT OF SAID VULCANIZING AGENT BEING FROM ABOUT 0.2 TO 0.6% BY WEIGHT OF THE RUBBER; SAID COMPOSITION BEING SUBSTANTIALLY FREE OF WATER, ZINC, PLASTICING OILS, CARBON BLACK, SILICA, AND CHALK FILLERS.
Claim 3
Dependent Claim
18 words
THE MIXTURE OF CLAIM 1, SAID RUBBER COMPRISING A COMPOUND OF RUBBER, PROTEIN AND ALDEHYDE PREPARED FROM LATEX.
Claim 4
Dependent Claim
56 words
PROCESS FOR VULCANIZING THE COMPOSITION OF CLAIM 1, WHICH COMPRISES THE STEPS OF HEATING THE COMPOSITION IN A PRESS AT A TEMPERATURE OF FROM ABOUT 143*C. TO ABOUT 145*C. FOR A PERIOD OF LESS THAN AN HOUR, TO EFFECT PARTIAL VULCANIZATION THEREOF, THEN AUTOCLAVING SAID COMPOSITION IN LOW PRESSURE LIVE STEAM TO COMPLETE THE VULCANIZATION THEREOF.
References Cited (Backward Citations)
US2335405A
Cited
US2538355A
Cited
US2695328A
Cited
US2868859A
Cited
US2819256A
Cited
US2931845A
Cited
US2909584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |