US2965593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of polymerizing mixtures of polyorganosiloxanes and vinyl monomers and product obtained
Assignee: Individual
•
Filing: 1954-08-17
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Granted: 1960-12-20
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Expires: 1974-08-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Dietz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:15
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/10; C08F; C08F283/00; C08F283/12; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/18; C08G77/22; C08G77/24; C08G77/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
THE PROCESS OF MAKING A HOMOGENEOUS, FUSIBLE MIXTURE OF A POLYORGANOSILOXANE THE ORGANO GROUPS OF WHICH ARE LINKED TO THE SILOXANE THROUGH A CARBON-TO-SILICON BOND AND CONTAIN NO ETHYLENIC UNSATURATION, SAID POLYORGANOSILOXANE HAVING A WEIGHT AVERAGE MOLECULAR WEIGHT EXCEEDING 150,000 AND A THERMOPLASTIC STYRENE POLYMER WHICH COMPRISES DISPERSING THE POLYORGANOSILOXANE INTO A MONOMERIC STYRENE MATERIAL AND POLYMERIZING IN THE PRESENCE OF 0.01-0.5% OF DIVINYL BENZENE TO EFFECT CROSSLINGING TO AN APPARENT WEIGHT AVERAGE MOLECULAR WEIGHT IN EXCESS OF 5,000,000.
Claim 2
Dependent Claim
79 words
THE PROCESS OF MAKING A HOMOGENEOUS, FUSIBLE MIXTURE OF A POLYORGANOSILOXANE THE ORGANO GROUPS OF WHICH ARE LINKED TO THE SILOXANE THROUGH A CARBON-TO-SILICON BOND AND CONTAIN NO ETHYLENIC UNSATURATION, SAID POLYORGANOSILOXANE HAVING A WEIGHT AVERAGE MOLECULAR WEIGHT EXCEEDING 150,000 AND A THERMOPLASTIC STYRENE POLYMER WHICH COMPRISES DISPERSING THE POLYORGANOSILOXANE INTO A MONOMERIC STYRENE MATERIAL AND POLYMERIZING IN THE PRESENCE OF 0.01-0.5% OF DIVINYL BENZENE TO EFFECT CROSSLINGING TO AN APPARENT WEIGHT AVERAGE MOLECULAR WEIGHT IN EXCESS OF 5,000,000.
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) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |