US2723211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable silane triol composition and method of treating glass therewith
Assignee: Cowles Chemical Co
•
Filing: 1953-04-13
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Granted: 1955-11-08
•
Expires: 1973-04-13
Abstract
No abstract record available.
Inventors
- 👤 Clinton W Macmullen
- 👤 Marzocchi Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:03
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/24; C03C25/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
THE METHOD OF TREATING A GLASS SURFACE TO PRODUCE A COATING OF INSOLUBLE ORGANOSILICON COMPOUNDS THEREON WHICH COMPRISES PREPARING AN AQUEOUS ALKALINE SOLUTION OF THE HYDROLYSIS PRODUCTS OF A HYDROCARBON-SUBSTITUTED TRIHALOSILANE, RAPIDLY REDUCING THE PH OF SAID SOLUTION TO A VALUE BETWEEN 2 AND 6 TO PRODUCE A STABLE ACIDIC SOLUTION OF SAID HYDROLYSIS PRODUCTS, APPLYING SAID ACIDIC SOLUTION TO SAID GLASS SURFACE TO CAUSE A COATING OF INSOLUBLE ORGANOSILICON COMPOUNDS TO BE DEPOSITED ON SAID SURFACE, AND CURING SAID COATING AT AN ELEVATED TEMPERATURE BELOW THE SOFTENING POINT OF SAID GLASS TO COMPLETE POLYMERIZATION OF SAID COMPOUNDS.
Claim 2
Independent Claim
98 words
THE METHOD OF TREATING A GLASS SURFACE TO PRODUCE A COATING OF INSOLUBLE ORGANOSILICON COMPOUNDS THEREON WHICH COMPRISES PREPARING AN AQUEOUS ALKALINE SOLUTION OF THE HYDROLYSIS PRODUCTS OF A HYDROCARBON-SUBSTITUTED TRIHALOSILANE, RAPIDLY REDUCING THE PH OF SAID SOLUTION TO A VALUE BETWEEN 2 AND 6 TO PRODUCE A STABLE ACIDIC SOLUTION OF SAID HYDROLYSIS PRODUCTS, APPLYING SAID ACIDIC SOLUTION TO SAID GLASS SURFACE TO CAUSE A COATING OF INSOLUBLE ORGANOSILICON COMPOUNDS TO BE DEPOSITED ON SAID SURFACE, AND CURING SAID COATING AT AN ELEVATED TEMPERATURE BELOW THE SOFTENING POINT OF SAID GLASS TO COMPLETE POLYMERIZATION OF SAID COMPOUNDS.
Claim 3
Dependent Claim
27 words
A COMPOSITION FOR TREATING MATERIALS TO RENDER THEM WATER-REPELLENT, SAID COMPOSITION BEING A STABLE AQUEOUS SOL OF HYDROCARBON SUBSTITUTED SILANE TRIOL HAVING A PH OF FROM 2-6.
Claim 4
Dependent Claim
27 words
A COMPOSITION FOR TREATING MATERIALS TO RENDER THEM WATER-REPELLENT, SAID COMPOSITION BEING A STABLE AQUEOUS SOL OF HYDROCARBON SUBSTITUTED SILANE TRIOL HAVING A PH OF FROM 2-6.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |