Patent US4332689A successfully refreshed from Google Patents.
US4332689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water base lubricant composition
Assignee: NOF Corp
•
Filing: 1980-04-01
•
Granted: 1982-06-01
•
Expires: 2000-04-01
Abstract
Abstract A polymer of polyoxyalkylene glycol monoacrylate or polyoxyalkylene glycol monomethacrylate is very useful as a base of lubricants.
Inventors
- 👤 Yoshiharu Tanizaki
- 👤 Shigeyuki Takase
- 👤 Kenichiro Minagawa
- 👤 Kiyomitu Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:14
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/082; C10M2201/083; C10M2201/086; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/04; C10M2207/044; C10M2207/046; C10M2207/08; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/16; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/28; C10M2215/30; C10M2219/00; C10M2219/04; C10M2219/09; C10N; C10N2040/00; C10N2040/08; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/46; C10N2040/50; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
75 words
A water-based lubricant comprising a solution of from 20 to 96 parts by weight of water and from 4 to 80 parts by weight of polymer having a number average molecular weight of less than 100,000, said polymer consisting essentially of recurring structural units of the formula ##STR3## wherein R is H or CH 3 , m is an integer of from 2 to 4, and n is an integer of from 2 to 20.
Claim 2
Dependent Claim
75 words
A water-based lubricant comprising a solution of from 20 to 96 parts by weight of water and from 4 to 80 parts by weight of polymer having a number average molecular weight of less than 100,000, said polymer consisting essentially of recurring structural units of the formula ##STR3## wherein R is H or CH 3 , m is an integer of from 2 to 4, and n is an integer of from 2 to 20.
Claim 3
Dependent Claim
23 words
A water-based lubricant as claimed in claim 1 in which the number average molecular weight of said polymer is from 1,000 to 50,000.
Claim 4
Dependent Claim
25 words
A water-based lubricant as claimed in claim 1 or claim 2, also containing from zero to 50 parts by weight of a water-soluble organic solvent.
Claim 5
Dependent Claim
37 words
A water-based lubricant as claimed in claim 3, also containing an effective amount of one or more lubricant additives selected from the group consisting of an antiwear agent, a rust inhibitor, an antioxidant and an antifoaming agent.
Claim 6
Dependent Claim
19 words
A water-based lubricant as claimed in claim 3 consisting essentially of water, said polymer and said water-soluble organic solvent.
References Cited (Backward Citations)
US3390084A
Cited
US3374171A
Cited
US3980571A
Cited
US3959534A
Cited
JPS5299607A
Cited
JPS5335059A
Cited
US4146488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-31 | 1985-11-30 | 1986-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-31 | 1989-11-30 | 1990-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-31 | 1993-11-30 | 1994-06-01 | $7700.00 | Window Closed / Lapsed |