Patent US5536857A successfully refreshed from Google Patents.
US5536857A
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US
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Single source volatile precursor for SiO2.TiO2 powders and films
Assignee: Visteon Global Technologies Inc
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Filing: 1994-07-05
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Granted: 1996-07-16
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Expires: 2014-07-05
Abstract
Abstract Novel single-source volatile precursor compounds are disclosed, having the general formula (RO).sub.3 Si--O--Ti (OR).sub.3 where each of the six R moieties in the C 3 to C 6 alkyl, preferably all being tert-butyl. The precursor compounds are suitable for use in dissociation methods, such as sol-gel and chemical vapor deposition, for preparing powders and films of stoichiometric SiO 2 .TiO 2 . Optical films to provide an anti-reflective surface on a lens, window or the like and powders for catalytic substrates, etc. are prepared using the SiO 2 .TiO 2 yielded by the single-source volatile precursor compound.
Inventors
- 👤 Chaitanya K. Narula
- 👤 Ashima Varshney
- 👤 Umar Riaz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:32
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/04; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/245; C03C17/2456; C03C17/25; C03C17/256; C23; C23C; C23C16/00; C23C16/22; C23C16/30; C23C16/40; C23C16/401; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/23; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/113; C03C2218/15; C03C2218/152
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A novel composition of matter having the formula (RO).sub.3 Si--O--Ti(OR).sub.3 where each R is a tert-butyl moiety.
Claim 2
Dependent Claim
17 words
A novel composition of matter having the formula (RO).sub.3 Si--O--Ti(OR).sub.3 where each R is a tert-butyl moiety.
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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) | 1999-07-16 | 2000-01-15 | 2000-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-16 | 2004-01-15 | 2004-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-16 | 2008-01-15 | 2008-07-16 | $7700.00 | Window Closed / Lapsed |