US4764423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive tape
Assignee: Fujifilm Holdings Corp
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Filing: 1986-10-17
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Granted: 1988-08-16
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Expires: 2006-10-17
Abstract
Abstract An abrasive tape comprises a flexible non-magnetic substrate, and an abrasive coating film applied onto the flexible non-magnetic substrate and formed by kneading an abrasive material, a binder, and a lubricant essentially consisting of a fatty acid, a fatty acid ester, a silicone oil, and a surface active agent.
Inventors
- 👤 Nobutaka Yamaguchi
- 👤 Eiichi Tadokoro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:44
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/62; G11B5/627; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/257
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
169 words
An abrasive tape comprising a flexible non-magnetic substrate, and an abrasive coating film having a thickness not larger than 50 μm applied onto said flexible non-magnetic substrate and formed by kneading an abrasive material having a Mohs hardness of 6 or more, a binder, and a lubricant essentially consisting of a fatty acid, a fatty acid ester, a silicone oil, and a surface active agent, wherein said lubricant essentially consists of said fatty acid in a ratio within the range of 20% to 70% by weight with respect to the total weight of said lubricant, said fatty acid ester in a ratio within the range of 5% to 30% by weight with respect to the total weight of said lubricant, said silicone oil in a ratio within the range of 0.5% to 20% by weight with respect to the total weight of said lubricant, and surface active agent in a ratio within the range of 5% to 40% by weight with respect to the total weight of said lubricant.
Claim 2
Dependent Claim
169 words
An abrasive tape comprising a flexible non-magnetic substrate, and an abrasive coating film having a thickness not larger than 50 μm applied onto said flexible non-magnetic substrate and formed by kneading an abrasive material having a Mohs hardness of 6 or more, a binder, and a lubricant essentially consisting of a fatty acid, a fatty acid ester, a silicone oil, and a surface active agent, wherein said lubricant essentially consists of said fatty acid in a ratio within the range of 20% to 70% by weight with respect to the total weight of said lubricant, said fatty acid ester in a ratio within the range of 5% to 30% by weight with respect to the total weight of said lubricant, said silicone oil in a ratio within the range of 0.5% to 20% by weight with respect to the total weight of said lubricant, and surface active agent in a ratio within the range of 5% to 40% by weight with respect to the total weight of said lubricant.
Claim 3
Dependent Claim
113 words
An abrasive tape as defined in claim 1 wherein said lubricant essentially consists of said fatty acid in a ratio within the range of 30% to 60% by weight with respect to the total weight of said lubricant, said fatty acid ester in a ratio within the range of 10% to 20% by weight with respect to the total weight of said lubricant, said silicone oil in a ratio within the range of 1% to 10% by weight with respect to the total weight of said lubricant, and said surface active agent in a ratio within the range of 10% to 30% by weight with respect to the total weight of said lubricant.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-16 | 1992-02-15 | 1992-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-16 | 1996-02-15 | 1996-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-16 | 2000-02-15 | 2000-08-16 | $7700.00 | Window Closed / Lapsed |