US2595728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysiloxanes containing allyl radicals
Assignee: Westinghouse Electric Corp
•
Filing: 1945-03-09
•
Granted: 1952-05-06
•
Expires: 1965-03-09
Abstract
No abstract record available.
Inventors
- 👤 Swiss Jack
- 👤 Clyde E Arntzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:57
CPC Classifications
C; C08; C08G; C08G77/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A COMPOSITION OF MATTER COMPRISING A HEATTREATED MONOVALENT HYDROCARBON - SUBSTITUTEDPOLYSILOXANE WHEREIN THE HYDROCARBON RADICALS CONSIST OF ALLYL RADICALS AND METHYL RADICALS LINKED DIRECTLY TO THE POLYSILOXANE SILICONE ATOMS BY CARBON TO SILICON LINKAGES AND WHEREIN NO POLYSILOXANE SILICON ATOM IS LINKED DIRECTLY TO BOTH ALLYL AND METHYL RADICALS BY SUCH LINKAGES, THE ALLYL RADICALS COMPRISING FROM 12.5 TO 20% OF THE TOTAL NUMBER OF SILICON-BONDED HYDROCARBON RADICALS, THE SAID POLYSILOXANE CONTAINING AN AVERAGE OF FROM 1.33 TO 1.8 SILICON-BONDED HYDROCARBON RADICALS PER SILICON ATOM, THE HEAT-TREATED POLYSILOXANE BEING CHARACTERIZED BY BOTH SILOXANE LINKAGES AND CROSS-LINKAGES THROUGH REACTION BETWEEN THE ALLYL GROUPS.
Claim 2
Dependent Claim
102 words
A COMPOSITION OF MATTER COMPRISING A HEATTREATED MONOVALENT HYDROCARBON - SUBSTITUTEDPOLYSILOXANE WHEREIN THE HYDROCARBON RADICALS CONSIST OF ALLYL RADICALS AND METHYL RADICALS LINKED DIRECTLY TO THE POLYSILOXANE SILICONE ATOMS BY CARBON TO SILICON LINKAGES AND WHEREIN NO POLYSILOXANE SILICON ATOM IS LINKED DIRECTLY TO BOTH ALLYL AND METHYL RADICALS BY SUCH LINKAGES, THE ALLYL RADICALS COMPRISING FROM 12.5 TO 20% OF THE TOTAL NUMBER OF SILICON-BONDED HYDROCARBON RADICALS, THE SAID POLYSILOXANE CONTAINING AN AVERAGE OF FROM 1.33 TO 1.8 SILICON-BONDED HYDROCARBON RADICALS PER SILICON ATOM, THE HEAT-TREATED POLYSILOXANE BEING CHARACTERIZED BY BOTH SILOXANE LINKAGES AND CROSS-LINKAGES THROUGH REACTION BETWEEN THE ALLYL GROUPS.
References Cited (Backward Citations)
US2276094A
Cited
US2320536A
Cited
US2258220A
Cited
US2386793A
Cited
US2486162A
Cited
US2397727A
Cited
US2377689A
Cited
US2436304A
Cited
US2409633A
Cited
US2388161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |