US4191835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis-anthranilates of urea derivatives
Assignee: BASF Corp
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Filing: 1978-12-04
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Granted: 1980-03-04
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Expires: 1998-12-04
Abstract
Abstract Bis-anthranilates of the formula I ##STR1## or mixtures thereof, in which, in the formula, m and n are each 0 or a number from 1 to 5, preferably a number from 1 to 3, and the sum of m and n must be at least 1, as novel chain extenders and crosslinking agents for the production of polyurethanes and polyurea resins. The compounds of the formula I are also suitable as curing agents for epoxide resins.
Inventors
- 👤 Jurgen Habermeier
- 👤 Roland Moser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:18
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/21; C07; C07C; C07C275/00; C07C275/04; C07C275/06; C07C275/10; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/28; C08G18/30; C08G18/38; C08G18/3819; C08G18/3823; C08G18/3829; C08G18/40; C08G18/48; C08G18/50; C08G18/5021; C08G18/5036; C08G18/5042
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
43 words
A bis-anthranilate of the formula I ##STR7## or a mixture of such bis-anthranilates, in which, in the formula, m and n are each 0 or a number from 1 to 5 and the sum of m and n must be at least 1.
Claim 2
Dependent Claim
43 words
A bis-anthranilate of the formula I ##STR7## or a mixture of such bis-anthranilates, in which, in the formula, m and n are each 0 or a number from 1 to 5 and the sum of m and n must be at least 1.
Claim 3
Dependent Claim
23 words
A diester according to claim 1, in which m and n in the formula I are each a number from 1 to 3.
Claim 4
Dependent Claim
12 words
N,N'-Bis-(anthranoyloxyethoxyethyl)-urea as a compound of the formula I according to claim 1.
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) | 1983-03-04 | 1983-09-03 | 1984-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-04 | 1987-09-03 | 1988-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-04 | 1991-09-03 | 1992-03-04 | $7700.00 | Window Closed / Lapsed |