US2756220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber chemical and use thereof
Assignee: Uniroyal Inc
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Filing: 1952-08-23
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Granted: 1956-07-24
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Expires: 1972-08-23
Abstract
No abstract record available.
Inventors
- 👤 Marvin C Brooks
- 👤 Ray K Kuhns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:21
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0898; C08; C08K; C08K5/00; C08K5/54; C08K5/548
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
THE METHOD WHICH COMPRISES COMMUNIGLING A SULFURVULCANIZABLE CONJUGATED DIOLEFIN POLYMER RUBBER, A FILLER, AND FROM 0.5 TO 10%, ON THE WEIGHT OF THE FILLER, OF A VINYL SILTHIANE, AND HEATING THE MIXTURE AT A TEMPERATURE OF AT LEAST 250* F. TO EFFECT REACTION BETWEEN SAID VINYL SILTHIANE AND SAID FILTER, THE SAID VINYL SILTHIANE BEING THE PRODUCT OF INTERACTION OF VINYLCHLOROSILANE WHEREIN THE SUM OF THE VINYL AND CHLORO GROUPS IS EQUAL TO 4 WITH HYDROGEN SULFIDE PASSED IN GASEOUS FORM INTO A SOLUTION AT REFLUX TEMPERATURE OF SAID VINYLCHLOROSILANE, IN THE PRESENCE OF A HYDROGEN CHLORIDE ACCEPTOR, TO EFFECT LIBERATION OF AN AMOUNT OF HYDROGEN CHLORIDE CORRESPONDING TO THE AMOUNT OF CHLORINE IN THE VINYLCHLOROSILANE, WHEREBY THERE IS FORMED A VINYL SILTHIANE CONSISTING OF VINYL GROUPS, SILICON ATOMS AND SULFUR ATOMS, EACH OF SAID SILICON ATOMS BEING CHEMICALLY ATTACHED TO VINYL GROUPS AND SULFUR ATOMS, THE SUM OF THE NUMBER OF VINYL GROUPS AND SULFUR ATOMS TO WHICH EACH OF SAID SILICON ATOMS IS ATTACHED BEING EQUAL TO 4.
Claim 2
Independent Claim
170 words
THE METHOD WHICH COMPRISES COMMUNIGLING A SULFURVULCANIZABLE CONJUGATED DIOLEFIN POLYMER RUBBER, A FILLER, AND FROM 0.5 TO 10%, ON THE WEIGHT OF THE FILLER, OF A VINYL SILTHIANE, AND HEATING THE MIXTURE AT A TEMPERATURE OF AT LEAST 250* F. TO EFFECT REACTION BETWEEN SAID VINYL SILTHIANE AND SAID FILTER, THE SAID VINYL SILTHIANE BEING THE PRODUCT OF INTERACTION OF VINYLCHLOROSILANE WHEREIN THE SUM OF THE VINYL AND CHLORO GROUPS IS EQUAL TO 4 WITH HYDROGEN SULFIDE PASSED IN GASEOUS FORM INTO A SOLUTION AT REFLUX TEMPERATURE OF SAID VINYLCHLOROSILANE, IN THE PRESENCE OF A HYDROGEN CHLORIDE ACCEPTOR, TO EFFECT LIBERATION OF AN AMOUNT OF HYDROGEN CHLORIDE CORRESPONDING TO THE AMOUNT OF CHLORINE IN THE VINYLCHLOROSILANE, WHEREBY THERE IS FORMED A VINYL SILTHIANE CONSISTING OF VINYL GROUPS, SILICON ATOMS AND SULFUR ATOMS, EACH OF SAID SILICON ATOMS BEING CHEMICALLY ATTACHED TO VINYL GROUPS AND SULFUR ATOMS, THE SUM OF THE NUMBER OF VINYL GROUPS AND SULFUR ATOMS TO WHICH EACH OF SAID SILICON ATOMS IS ATTACHED BEING EQUAL TO 4.
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) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |