Patent US3317458A successfully refreshed from Google Patents.
US3317458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixture of carbon black and light filler aqueous suspension added to rubber latex
Assignee: Evonik Operations GmbH
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Filing: 1963-10-07
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Granted: 1967-05-02
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Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Clas Willi
- 👤 Pochert Johannes
- 👤 Roderburg Gerd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:16
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/22; C08J3/226; C08K; C08K9/00; C08K9/02; C08L; C08L21/00; C08J2321/00; C08J2421/00; Y; Y10; Y10S; Y10S528/00; Y10S528/931; Y10S528/934; Y10S528/936
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A PROCESS FOR THE PRODUCTION OF A VULCANIZABLE PREMIXTURE ESSENTIALLY CONSISTING OF A VULCANIZABLE ELASTOMER, CARBON BLACK AND A LIGHT REENFORCING FILLER COMPONENT SELECTED FROM THE GROUP CONSISTING OF FINELY DIVDED REENFORCING SILICON DIOXIDE, FINELY DIVIDED REENFORCING SILICATES AND MIXTURES THEREOF WHICH COMPRISES ADMIXING CARBON BLACK AND THE LIGHT FILLER COMPONENT WITH A LATEX OF THE ELASTOMER, THE CARBON BLACK AND LIGHT FILLER COMPONENT BEING ADMIXED WITH SUCH LATEX IN THE FORM OF AN AQUEOUS SUSPENSION OF A MIXTURE OF THE CARBON BLACK AND THE LIGHT FILLER COMPONENT, THE TOTAL QUANTITY OF CARBON BLACK AND LIGHT FILLER COMPONENT ADMIXED WITH THE ELASTOMER LATEX BEING SUCH AS TO PROVIDE A RATIO OF CARBON BLACK AND LIGHT FILLER COMPONENT TO DRY ELASTOMER SUBSTANCE CONTENT OF THE LATEX BETWEEN 20:80 AND 80:20 BY WEIGH, THE RATIO OF CARBON BLACK TO LIGHT FILLER COMPONENT BEING BETWEEN 2:1 AND 5:1 BY WEIGHT, AND COAGULATING THE LATEX IN THE PRESENCE OF SUCH ADMIXED CARBON BLACK AND LIGHT FILLER COMPONENT.
Claim 2
Dependent Claim
163 words
A PROCESS FOR THE PRODUCTION OF A VULCANIZABLE PREMIXTURE ESSENTIALLY CONSISTING OF A VULCANIZABLE ELASTOMER, CARBON BLACK AND A LIGHT REENFORCING FILLER COMPONENT SELECTED FROM THE GROUP CONSISTING OF FINELY DIVDED REENFORCING SILICON DIOXIDE, FINELY DIVIDED REENFORCING SILICATES AND MIXTURES THEREOF WHICH COMPRISES ADMIXING CARBON BLACK AND THE LIGHT FILLER COMPONENT WITH A LATEX OF THE ELASTOMER, THE CARBON BLACK AND LIGHT FILLER COMPONENT BEING ADMIXED WITH SUCH LATEX IN THE FORM OF AN AQUEOUS SUSPENSION OF A MIXTURE OF THE CARBON BLACK AND THE LIGHT FILLER COMPONENT, THE TOTAL QUANTITY OF CARBON BLACK AND LIGHT FILLER COMPONENT ADMIXED WITH THE ELASTOMER LATEX BEING SUCH AS TO PROVIDE A RATIO OF CARBON BLACK AND LIGHT FILLER COMPONENT TO DRY ELASTOMER SUBSTANCE CONTENT OF THE LATEX BETWEEN 20:80 AND 80:20 BY WEIGH, THE RATIO OF CARBON BLACK TO LIGHT FILLER COMPONENT BEING BETWEEN 2:1 AND 5:1 BY WEIGHT, AND COAGULATING THE LATEX IN THE PRESENCE OF SUCH ADMIXED CARBON BLACK AND LIGHT FILLER COMPONENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |