US4880703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acicular electroconductive titanium oxide and process for producing same
Assignee: Ishihara Sangyo Kaisha Ltd
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Filing: 1987-11-09
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Granted: 1989-11-14
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Expires: 2007-11-09
Abstract
Abstract Disclosed in an electroconductive titanium oxide very low in powder resistivity and imparting superior electroconductivity when incorporated into a resin which comprises an acicular titanium oxide of at most 3% by weight in impurity content which has on the surface an electroconductive layer comprising tin oxide and antimony oxide.
Inventors
- 👤 Masashi Sakamoto
- 👤 Haruo Okuda
- 👤 Hideo Takahashi
- 👤 Eiji Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:09
CPC Classifications
H; H01; H01B; H01B3/00; C; C09; C09C; C09C1/00; C09C1/36; C09C1/3607; C09C1/3653; C09C1/3661; H01B1/00; H01B1/06; H01B1/08; C01; C01P; C01P2004/00; C01P2004/01; C01P2004/03; C01P2004/10; C01P2004/80; C01P2004/82; C01P2006/00; C01P2006/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/294; Y10T428/2973; Y10T428/298; Y10T428/2982; Y10T428/2991; Y10T428/2993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
An electroconductive titanium oxide which comprises an acicular titanium oxide having a length of 1 to 10 μm and an aspect ratio of 3 or higher, and containing up to 1% by weight of a phosphorus compound as P 2 O 5 and up to 0.2% by weight of a compound of a metal having a valence of 3 or less as an oxide of the metal, said acicular titanium oxide having on the surface thereof an electroconductive layer comprising tin oxide in an amount of 1 to 50% by weight of the substrate as SnO 2 , and antimony oxide in an amount of 5 to 30% by weight of the tin oxide as Sb 2 O 3 .
Claim 2
Dependent Claim
120 words
An electroconductive titanium oxide which comprises an acicular titanium oxide having a length of 1 to 10 μm and an aspect ratio of 3 or higher, and containing up to 1% by weight of a phosphorus compound as P 2 O 5 and up to 0.2% by weight of a compound of a metal having a valence of 3 or less as an oxide of the metal, said acicular titanium oxide having on the surface thereof an electroconductive layer comprising tin oxide in an amount of 1 to 50% by weight of the substrate as SnO 2 , and antimony oxide in an amount of 5 to 30% by weight of the tin oxide as Sb 2 O 3 .
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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) | 1992-11-13 | 1993-05-15 | 1993-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-13 | 1997-05-15 | 1997-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-13 | 2001-05-15 | 2001-11-14 | $7700.00 | Window Closed / Lapsed |