US3014005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber-zinc silicate masterbatch, and process for preparing same
Assignee: Uniroyal Inc
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Filing: 1958-11-25
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Granted: 1961-12-19
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Expires: 1978-11-25
Abstract
No abstract record available.
Inventors
- 👤 Louis H Howland
- 👤 Woodrow W White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:35
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/21; C08J3/215; C08K; C08K3/00; C08K3/34; C08J2321/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A PROCESS WHICH COMPRISES INCORPORATING AN ALKALIMETAL SILICATE IN A LATEX OF A RUBBER CONTAINING BASIC NITROGEN FUNCTIONAL GROUPS, AND COAGULATING THE RUBBER AND FORMING A MASTERBATCH THEREWITH OF ZINC SILICATE BY MIXING WITH SUCH LATEX CONTAINING THE ALKALI-METAL SILICATE, A WATER-SOLUBLE ZINC SALT IN AN ACID MEDIUM TO PRODUCE A FINAL PH OF 2 TO LESS THAN 7 IN THE AQUEOUS MEDIUM OF THE COAGULATED RUBBER AND ZINC SILICATE AT THE COMPLETION OF THE COAGULATION OF THE MASTERBATCH, THE MOLAR RATIO OF ZINC OXIDE TO SILICA IN THE ZINC SILICATE BEING FROM 0.05:1 TO LESS THAN 1:1, AND THE ZINC SILICATE BEING IN AMOUNT FROM 5 TO 100 PARTS PER 100 PARTS OF SAID RUBBER.
Claim 2
Dependent Claim
116 words
A PROCESS WHICH COMPRISES INCORPORATING AN ALKALIMETAL SILICATE IN A LATEX OF A RUBBER CONTAINING BASIC NITROGEN FUNCTIONAL GROUPS, AND COAGULATING THE RUBBER AND FORMING A MASTERBATCH THEREWITH OF ZINC SILICATE BY MIXING WITH SUCH LATEX CONTAINING THE ALKALI-METAL SILICATE, A WATER-SOLUBLE ZINC SALT IN AN ACID MEDIUM TO PRODUCE A FINAL PH OF 2 TO LESS THAN 7 IN THE AQUEOUS MEDIUM OF THE COAGULATED RUBBER AND ZINC SILICATE AT THE COMPLETION OF THE COAGULATION OF THE MASTERBATCH, THE MOLAR RATIO OF ZINC OXIDE TO SILICA IN THE ZINC SILICATE BEING FROM 0.05:1 TO LESS THAN 1:1, AND THE ZINC SILICATE BEING IN AMOUNT FROM 5 TO 100 PARTS PER 100 PARTS OF SAID RUBBER.
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) | 1964-12-18 | 1965-06-19 | 1965-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-18 | 1969-06-19 | 1969-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-18 | 1973-06-19 | 1973-12-19 | $7700.00 | Window Closed / Lapsed |