US4446193A
Expired / Lapsed
US
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Process for chemically bonding lubricant to an information carrier and products thereof
Assignee: International Business Machines Corp
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Filing: 1983-04-29
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Granted: 1984-05-01
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Expires: 2003-04-29
Abstract
Abstract A lubricant is chemically bonded to an information carrying solid surface by contacting the surface with a diazoketone-terminated polymeric lubricant and decomposing said diazoketone-terminated polymeric lubricant to form a carbene which reacts with the solid surface.
Inventors
- 👤 Ali Afzali-Ardakani
- 👤 John I. Crowley
- 👤 Anthony W. Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:46
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/50; C; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/333; C10; C10M; C10M107/00; C10M107/20; C10M107/30; G11B5/00; G11B5/62; G11B5/72; G11B5/725; G11B5/7253; G11B5/7257; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
41 words
A process for chemically bonding a lubricant to an information carrying solid surface, said process characterized by contacting the surface with a diazoketone-terminated polymeric compound and decomposing said diazoketone-terminated polymeric compound to form a carbene which reacts with the solid surface.
Claim 2
Dependent Claim
41 words
A process for chemically bonding a lubricant to an information carrying solid surface, said process characterized by contacting the surface with a diazoketone-terminated polymeric compound and decomposing said diazoketone-terminated polymeric compound to form a carbene which reacts with the solid surface.
Claim 3
Dependent Claim
15 words
A process as claimed in claim 1 wherein the polymeric compound is a diazoketone-terminated perfluoropolyether.
Claim 4
Dependent Claim
24 words
A process as claimed in claim 1 wherein an additional layer of lubricant is applied on top of the chemically bonded layer of lubricant.
Claim 5
Dependent Claim
12 words
An information recording medium lubricated according to the process of claim 1.
Claim 6
Dependent Claim
12 words
An information recording medium lubricated according to the process of claim 2.
Claim 7
Dependent Claim
12 words
An information recording medium lubricated according to the process of claim 3.
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) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |