US3170962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosilicon-epoxy resin compositions
Assignee: Dow Silicones Corp
•
Filing: 1955-01-14
•
Granted: 1965-02-23
•
Expires: 1975-01-14
Abstract
No abstract record available.
Inventors
- 👤 Leslie J Tyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:05
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/10; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4085; C08G77/00; C08G77/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A COMPOSITION OF MATTER COMPOSED OF THE REACTION PRODUCT OF: (A) A RESINOUS EXPOXIDE PREPARED BY THE REACTION OF (1) A POLYHYDRIC PHENOL AND (2) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYFUNCTIONAL CHLOROHYDRINS AND POLYEPOXIDES AND MIXTURES THEREOF, SAID EPOXIDE RESIN HAVING AN AVERAGE OF AT LEAST ONE OH PER MOLECULE, AND (B) A SILICONE COMPOUND HAVING MORE THAN ONE HYDROXYL GROUP ATTACHED DIRECTLY TO ONE OR MORE SILICON ATOMS AND BEING FREE FROM FUNCTIONAL GROUPS OTHER THAN HYDROXY, ALKOXY, AND AROXY.
Claim 2
Dependent Claim
84 words
A COMPOSITION OF MATTER COMPOSED OF THE REACTION PRODUCT OF: (A) A RESINOUS EXPOXIDE PREPARED BY THE REACTION OF (1) A POLYHYDRIC PHENOL AND (2) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYFUNCTIONAL CHLOROHYDRINS AND POLYEPOXIDES AND MIXTURES THEREOF, SAID EPOXIDE RESIN HAVING AN AVERAGE OF AT LEAST ONE OH PER MOLECULE, AND (B) A SILICONE COMPOUND HAVING MORE THAN ONE HYDROXYL GROUP ATTACHED DIRECTLY TO ONE OR MORE SILICON ATOMS AND BEING FREE FROM FUNCTIONAL GROUPS OTHER THAN HYDROXY, ALKOXY, AND AROXY.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |