Silicate bodies
Abstract
Abstract THIS INVENTION RELATES TO THE DISCOVERY THAT WHEN CERTAIN ESTERS OR INORGANIC SALTS WHICH HYDROLYZE TO WEAK ACIDS ARE ADDED TO TRUE SOLUTIONS, COLLOIDAL SOLUTIONS, AND SUSPENSIONS OF SOLUBLE SILICATES CONTAINING MORE THAN 1 MOLE OF SILICA PER LITHER AND HAVING A PH GREATER THAN ABOUT 10 A REACTION WILL TAKE PLACE WHEREIN THE PH WILL REDUCED AND THE SILICA WILL POLYMERIZE INTO A NETWORK STRUCTURE. THE REACTED BODY MAY THEN BE FIRED BELOW THE SOFTENING POINT OF THE POLYMERIZED PRODUCT TO FORM A GLASS ARTICLE HAVING A GEOMETRY SIMILAR TO THAT OF THE ORIGINAL BODY OR MAY BE TREATED SO AS TO FORM A SELF-SUPPORTING, MONOLITHIC POROUS BODY WHICH, IF DESIRED, CAN BE CONSOLIDATED BY HEAT TO A GLASSY BODY.
Inventors
- 👤 H Meissner
- 👤 S Stookey
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |