US3666530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel silicious silicone bonded materials
Assignee: Research Corp
•
Filing: 1970-10-22
•
Granted: 1972-05-30
•
Expires: 1990-10-22
Abstract
Abstract THERE IS PROVIDED A NOVEL TYPE OF SILICIOUS MATERIAL HAVING BONDED THERETO SILICONE OR POLYSILOXANE POLYMERS. THESE NOVEL MATERIALS ARE PRODUCED BY ACTIVATING ALL OR MOST OF THE AVAILABLE HYDROXYL GROUPS IN A SILICIOUS SURFACE AND REACTING SAID HYDROXYL GROUPS WITH SILANES OR SILOXANE HAVING LABILE GROUPS. THESE SILYL OR SILOXYL MOIETIES ARE THEN POLYMERIZED TO YIELD A MATERIAL HAVING A SILICONE POLYMER CHEMICALLY BONDED TO THE SURFACE OF THE SILICIOUS MATERIAL. THESE NOVEL PRODUCTS ARE USEFUL AS A COMBINED STATIONARY AND LIQUID PHASE IN GAS CHROMATOGRAPHY. THEY ARE ESPECIALLY USEFUL IN THE CHROMATOGRAPHY OF HIGHLY POLAR MATERIALS.
Inventors
- 👤 Walter A Aue
- 👤 Corazon R Hastings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:38
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/28; C03C17/30; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |