US4683071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Benzotriazole mixtures, processes for producing them, and their use as metal passivators
Assignee: BASF Corp
•
Filing: 1985-10-18
•
Granted: 1987-07-28
•
Expires: 2005-10-18
Abstract
Abstract Mixtures of the compounds of the formulae I and II ##STR1## are metal passivators for functional fluids, such as hydraulic fluids and metal-working fluids in the form of aqueous polyglycol/polyglycol ether mixtures, glycol systems, oil-in-water and water-in-oil emulsions, as well as anti-freeze compositions based on glycol. A process for producing mixtures of the said type is also described.
Inventors
- 👤 Franz Regenass
- 👤 Peter C. Hamblin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:52
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/149; C07; C07D; C07D249/00; C07D249/16; C07D249/18; C10; C10M; C10M133/00; C10M133/02; C10M133/38; C10M133/44; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10N; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
39 words
A mixture of the compounds of the formulae I and II ##STR5## consisting of 50 to 70 percent by weight of the compound of formula I and 50 to 30 percent by weight of the compound of formula II.
Claim 2
Dependent Claim
39 words
A mixture of the compounds of the formulae I and II ##STR5## consisting of 50 to 70 percent by weight of the compound of formula I and 50 to 30 percent by weight of the compound of formula II.
Claim 3
Dependent Claim
33 words
A mixture according to claim 1 consisting of about 65 percent by weight of the compound of the formula I and about 35 percent by weight of the compound of the formula II.
Claim 4
Dependent Claim
70 words
A composition which consists, based on percent by weight of the total composition, of (a) 25 to 89 percent of water, and (b) 75 to 11 percent of a mixture of the compounds of the formulae I and II ##STR6## wherein component (b) consists of 50 to 70 percent by weight of the compound of formula I and 50 to 30 percent by weight of the compound of formula II.
Claim 5
Dependent Claim
70 words
A composition which consists, based on percent by weight of the total composition, of (a) 25 to 89 percent of water, and (b) 75 to 11 percent of a mixture of the compounds of the formulae I and II ##STR6## wherein component (b) consists of 50 to 70 percent by weight of the compound of formula I and 50 to 30 percent by weight of the compound of formula II.
References Cited (Backward Citations)
GB1061904A
Cited
US3413227A
Cited
DE1948794A1
Cited
US4177155A
Cited
US4107060A
Cited
DE2530562A1
Cited
SU653290A1
Cited
GB1511593A
Cited
GB1514359A
Cited
US4153565A
Cited
JPS6033909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-27 | 1991-01-26 | 1991-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-27 | 1995-01-26 | 1995-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-27 | 1999-01-26 | 1999-07-28 | $7700.00 | Window Closed / Lapsed |