US5709741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water repellent for application to glass and water-repellent glass
Assignee: DuPont Toray Specialty Materials KK
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Filing: 1996-02-22
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Granted: 1998-01-20
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Expires: 2016-02-22
Abstract
Abstract A water repellent for application to glass, comprising disilazane with the general formula <IMAGE> in which n and n' are the same or different integers having values from 2 to 20, and water-repellent glass whose surface has been treated with said water repellent.
Inventors
- 👤 Shoji Akamatsu
- 👤 Toshiyuki Okada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:20
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/28; C03C17/30; C03C17/006; C03C17/008; C03C17/009; C09; C09D; C09D4/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
59 words
A composition comprising a disilazane having the formula: ##STR6## in which n and n' are the same or different integers having values from 2 to 20, wherein said composition includes at least one of silica, calcium carbonate, or magnesium oxide, and said disilazane is present in an amount from 5 to 50 percent by weight of the total composition.
Claim 2
Dependent Claim
59 words
A composition comprising a disilazane having the formula: ##STR6## in which n and n' are the same or different integers having values from 2 to 20, wherein said composition includes at least one of silica, calcium carbonate, or magnesium oxide, and said disilazane is present in an amount from 5 to 50 percent by weight of the total composition.
Claim 3
Dependent Claim
21 words
The composition of claim 1, wherein n and n' are the same or different integers having values from 4 to 15.
Claim 4
Dependent Claim
23 words
The composition of claim 1, wherein n and n' are the same or different integers having values of 6, 8, 12 or 18.
Claim 5
Dependent Claim
10 words
The composition of claim 1 further including an organic solvent.
References Cited (Backward Citations)
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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) | 2001-01-19 | 2001-07-21 | 2002-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-01-19 | 2005-07-21 | 2006-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-01-19 | 2009-07-21 | 2010-01-20 | $7700.00 | Window Closed / Lapsed |