US4889648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold-rolling oils for steel plates
Assignee: Nippon Steel Corp
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Filing: 1988-07-18
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Granted: 1989-12-26
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Expires: 2008-07-18
Abstract
Abstract Lubricating oils for rolling of steel plates, which are composed of synthetic ester compounds obtainable from tri- or higher-valent alcohols having tertiary nitrogen such as isocyanuric derivatives or ethylene oxide addition products of ethylenediamine and fatty acids, possess well-balanced rolling lubricating properties and mill cleanability at a high level.
Inventors
- 👤 Yuzo Higaki
- 👤 Hiroyuki Goto
- 👤 Keiichi Tanikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:21
CPC Classifications
C; C08; C08F; C08F299/00; C08F299/02; C08F299/026; C09; C09D; C09D163/00; C10; C10M; C10M105/00; C10M105/08; C10M105/32; C10M105/56; C10M105/58; C10M105/60; C10M105/62; C10M101/00; C10M105/70; C10M111/00; C10M111/02; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M133/08; C10M133/38; C10M133/40; C10M173/00; C10M2201/00; C10M2201/02; C10M2203/00; C10M2203/003; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/18; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/0425; C10M2215/22; C10M2215/2203; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/2265; C10M2215/24; C10M2215/30; C10M2215/305; C10N; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
160 words
In a method of cold-rolling steel plates which comprises applying a cold rolling oil to the plates and cold rolling the oiled plates, the improvement which comprises employing as the cold rolling oil an esterified product of (A) a compound selected from the group consisting of those of the formulae ##STR4## wherein X is H or CH 3 , and n is an integer of 1 to 10; and ##STR5## wherein X is H or CH 3 , n is an integer of 1 to 10, and R is selected from the group consisting of alkyl having 2 to 6 carbon atoms, a phenyl group or a cyclohexyl group; with (B) a fatty acid having six or more carbon atoms or a mixture of said fatty acid with a rosin compound selected from the group consisting of rosin, disproportionated rosin, hydrogenated rosin and polymerized rosin, thereby imparting a rolling lubricating property and mill cleanability to the surface of steel plates.
Claim 2
Dependent Claim
160 words
In a method of cold-rolling steel plates which comprises applying a cold rolling oil to the plates and cold rolling the oiled plates, the improvement which comprises employing as the cold rolling oil an esterified product of (A) a compound selected from the group consisting of those of the formulae ##STR4## wherein X is H or CH 3 , and n is an integer of 1 to 10; and ##STR5## wherein X is H or CH 3 , n is an integer of 1 to 10, and R is selected from the group consisting of alkyl having 2 to 6 carbon atoms, a phenyl group or a cyclohexyl group; with (B) a fatty acid having six or more carbon atoms or a mixture of said fatty acid with a rosin compound selected from the group consisting of rosin, disproportionated rosin, hydrogenated rosin and polymerized rosin, thereby imparting a rolling lubricating property and mill cleanability to the surface of steel plates.
Claim 3
Dependent Claim
25 words
A method of claim 1 wherein the ratio by weight of said fatty acid to rosin compound in component (B) is between 95:5 and 25:75.
Claim 4
Dependent Claim
21 words
A method of claim 1 wherein said esterified product is used in the form of emulsion as the cold rolling oil.
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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) | 1992-12-25 | 1993-06-26 | 1993-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-25 | 1997-06-26 | 1997-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-25 | 2001-06-26 | 2001-12-26 | $7700.00 | Window Closed / Lapsed |