US3697520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triazine carboxylic acids and esters
Assignee: Novartis AG
•
Filing: 1970-04-30
•
Granted: 1972-10-10
•
Expires: 1990-04-30
Abstract
Abstract Triazine carboxylic acids and esters are useful as starting materials in the preparation of high temperature polymers, antioxidants and plastercizers. These compounds are prepared by reacting cyanuric chloride or an amino substituted dichloro-s-triazine with amino acids or amino esters in the presence of a base and water.
Inventors
- 👤 Roland A E Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:32
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/40; C07D251/54; C07D251/70
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
30 words
A compound according to claim 1 wherein: R1 is an orTho, meta or para phenylene group; R2 is phenyl group; R3 is hydrogen; and R4 and R5 are phenyl groups.
Claim 2
Dependent Claim
30 words
A compound according to claim 1 wherein: R1 is an ortho, meta or para phenylene group; R2 is ethyl group; R3 is hydrogen; and R4 and R5 are phenyl groups.
Claim 3
Dependent Claim
22 words
A compound according to claim 1 wherein: R1 is alkylene; R2 and R3 are hydrogen; and R4 and R5 are alkyl groups.
Claim 4
Dependent Claim
23 words
A compound according to claim 1 wherein: R1 is decylene group; R2 and R3 are hydrogens; and R4 and R5 are methyl groups.
Claim 5
Dependent Claim
23 words
A compound according to claim 1 wherein: R1 is pentylene group; R2 and R3 are hydrogens; and R4 and R5 are ethyl groups.
Claim 6
Dependent Claim
23 words
A compound according to claim 1 wherein: R1 is pentylene group; R2 and R3 are hydrogens; and R4 and R5 are phenyl groups.
Claim 7
Dependent Claim
23 words
A compound according to claim 1 wherein: R1 is methylene group; R2 and R3 are hydrogens; and R4 and R5 are methyl groups.
Claim 8
Dependent Claim
23 words
A compound according to claim 1 wherein: R1 is propylene group; R2 and R3 are hydrogens; and R4 and R5 are methyl groups.
Claim 9
Dependent Claim
22 words
A compound according to claim 1 wherein: R1 is pentylene group; R2 and R3 are hydrogens; and R4 and R5 are hydrogens.
Claim 10
Dependent Claim
27 words
A compound according to claim 1 wherein: R1 is methylene group; R2 is hydrogen; R3 is methylene carboxylic acid group; and R4 and R5 are methyl groups.
Claim 11
Dependent Claim
23 words
A compound according to claim 1 wherein: R1 is pentylene group; R2 and R3 are hydrogens; and R4 and R5 are allyl groups.
References Cited (Backward Citations)
US3536709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |