US5089330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive tape in which a single compound serves to improve dispersion of abrasive particles and also as antistatic and lubricant for the tape
Assignee: Fujifilm Corp
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Filing: 1991-01-17
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Granted: 1992-02-18
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Expires: 2011-01-17
Abstract
Abstract An abrasive tape comprises a flexible substrate and an abrasive layer which is overlaid on the flexible substrate and which contains abrasive grains, a binder, and an additive. The additive contains at least one kind of a compound represented by the general formula of ##STR1## where R 1 represents a monovalent hydrocarbon group having six to 30 carbon atoms, or a fluorine-substituted alkyl group having one to 17 carbon atoms, R 2 represents H or a monovalent alkyl group having one to three carbon atoms, X represents either one of ##STR2## where R 3 is C 3 F 7 and n is an integer of 1 to 30.
Inventors
- 👤 Masami Sato
- 👤 Masaaki Fujiyama
- 👤 Yasuo Nishikawa
- 👤 Takashi Iwasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:45
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/84; G11B5/127; G11B5/187; G11B5/1871; G11B5/62; G11B5/627; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T428/00; Y10T428/12; Y10T428/12993; Y10T428/25; Y10T428/256; Y10T428/257
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
112 words
An abrasive tape comprising a flexible substrate and an abrasive layer which is overlaid on said flexible substrate and which consists essentially of abrasive grains, a binder, and an additive, wherein said additive contains at least one kind of a compound represented by the general formula of ##STR10## where R 1 represents a monovalent hydrocarbon group having six to 30 carbon atoms, or a fluorine-substituted alkyl group having one to 17 carbon atoms, R 2 represents H or a monovalent alkyl group having one to three carbon atoms, X represents either one of ##STR11## where R 3 is C 3 F 7 , and n is an integer of 1 to 30.
Claim 2
Dependent Claim
112 words
An abrasive tape comprising a flexible substrate and an abrasive layer which is overlaid on said flexible substrate and which consists essentially of abrasive grains, a binder, and an additive, wherein said additive contains at least one kind of a compound represented by the general formula of ##STR10## where R 1 represents a monovalent hydrocarbon group having six to 30 carbon atoms, or a fluorine-substituted alkyl group having one to 17 carbon atoms, R 2 represents H or a monovalent alkyl group having one to three carbon atoms, X represents either one of ##STR11## where R 3 is C 3 F 7 , and n is an integer of 1 to 30.
Claim 3
Dependent Claim
26 words
An abrasive tape as defined in claim 1 wherein the hydrocarbon group which R 1 in said general formula represents has six to 22 carbon atoms.
Claim 4
Dependent Claim
26 words
An abrasive tape as defined in claim 2 wherein the hydrocarbon group which R 1 in said general formula represents has eight to 18 carbon atoms.
Claim 5
Dependent Claim
27 words
An abrasive tape as defined in claim 1 wherein the fluorine-substituted alkyl group which R 1 in said general formula represents has six to 12 carbons atoms.
Claim 6
Dependent Claim
26 words
An abrasive tape as defined in claim 1 wherein R 2 in said general formula represents a monovalent alkyl group having one to three carbon atoms.
Claim 7
Dependent Claim
16 words
An abrasive tape as defined in claim 1 wherein X in said general formula represents ##STR12##
Claim 8
Dependent Claim
21 words
An abrasive tape as defined in claim 1 wherein n in said general formula represents an integer of 1 to 22.
Claim 9
Dependent Claim
21 words
An abrasive tape as defined in claim 1 wherein said abrasive grains have a Mohs hardness of not lower than 6.
Claim 10
Dependent Claim
21 words
An abrasive tape as defined in claim 8 wherein said abrasive grains have a Mohs hardness of not lower than 8.
Claim 11
Dependent Claim
48 words
An abrasive tape as defined in claim 1 wherein at least one kind of said compound represented by said general formula is added in proportions within the range of 0.5 to 3 wt % with respect to the total amount of the solid contents in said abrasive layer.
Claim 12
Dependent Claim
48 words
An abrasive tape as defined in claim 10 wherein at least one kind of said compound represented by said general formula is added in proportions within the range of 0.5 to 2 wt % with respect to the total amount of the solid contents in said abrasive layer.
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) | 1995-02-17 | 1995-08-19 | 1996-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-17 | 1999-08-19 | 2000-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-17 | 2003-08-19 | 2004-02-18 | $7700.00 | Window Closed / Lapsed |