US2718508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosilicon paest resins
Assignee: —
•
Filing: —
•
Granted: 1955-09-20
•
Expires: 1972-09-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:25
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/42; C08G77/445; C09; C09D; C09D183/00; C09D183/04; C08G77/04; C08G77/14; C08G77/16; C08K; C08K5/00; C08K5/54; C08K5/541; C08K5/5415; C08K5/5419; C08L; C08L83/00; C08L83/04; C08L2666/00; C08L2666/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A RESINOUS COMPOSITION COMPOSED OF FROM 25 TO 35 PER CENT BY WEIGHT OF AN ORGANOSILICON COMPOSITION CONTAINING FROM 0.8 TO 2 SILICON BONDED ALKOXY GROUPS OF LESS THAN 5 CARBON ATOMS PER SILICON ATOM, IN WHICH ORGANOSILICON COMPOSITION THE SILICON ATOMS HAVE BOTH METHYL AND PHENYL RADICALS ATTACHED THERETO AND IN WHICH FROM 0 TO 50 PER CENT OF SAID ATOMS HAVE ONLY PHENYL GROUPS ATTACHED THERETO, ANY REMAINING VALENCES OF THE SILICON BEING SATISIFIED BY OXYGEN ATOMS, FROM 20 TO 30 PER CENT BY WEIGHT OF AN UNSATURATED FATTY ACID OF FROM 12 TO 20 CARBON ATOMS, SAID ACID HAVING AN IODINE NUMBER OF AT LEAST 125, FROM 12 TO 18 PER CENT BY WEIGHT GLYCERINE, AND FROM 25 TO 40 PER CENT BY WEIGHT PHTHALIC ANHYDRIDE.
Claim 2
Dependent Claim
129 words
A RESINOUS COMPOSITION COMPOSED OF FROM 25 TO 35 PER CENT BY WEIGHT OF AN ORGANOSILICON COMPOSITION CONTAINING FROM 0.8 TO 2 SILICON BONDED ALKOXY GROUPS OF LESS THAN 5 CARBON ATOMS PER SILICON ATOM, IN WHICH ORGANOSILICON COMPOSITION THE SILICON ATOMS HAVE BOTH METHYL AND PHENYL RADICALS ATTACHED THERETO AND IN WHICH FROM 0 TO 50 PER CENT OF SAID ATOMS HAVE ONLY PHENYL GROUPS ATTACHED THERETO, ANY REMAINING VALENCES OF THE SILICON BEING SATISIFIED BY OXYGEN ATOMS, FROM 20 TO 30 PER CENT BY WEIGHT OF AN UNSATURATED FATTY ACID OF FROM 12 TO 20 CARBON ATOMS, SAID ACID HAVING AN IODINE NUMBER OF AT LEAST 125, FROM 12 TO 18 PER CENT BY WEIGHT GLYCERINE, AND FROM 25 TO 40 PER CENT BY WEIGHT PHTHALIC ANHYDRIDE.
References Cited (Backward Citations)
US2587295A
Cited
US2589243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-19 | 1959-03-21 | 1959-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-19 | 1963-03-21 | 1963-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-19 | 1967-03-21 | 1967-09-20 | $7700.00 | Window Closed / Lapsed |