US4093639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal salts of N-hydroxyalkylated or N-aminoalkylated branched α-aminoacids
Assignee: Novartis Corp
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Filing: 1976-04-02
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Granted: 1978-06-06
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Expires: 1996-04-02
Abstract
Abstract Metal complexes of zinc, copper, cobalt and nickel and N- beta -hydroxyalkylated or gamma -aminoalkylated alpha -aminocarboxylic acids which are substituted at the alpha -carbon atom have excellent heat resistance, in particular a good heat resistance under oxydative influences. These complexes are also soluble in many starting components used for obtaining specific polymers. They are therefore especially suitable for obtaining copolymers which contain metal ions, for example polyesters, polyurethanes and polyamides. The copolymers can be used for manufacturing moulded articles.
Inventors
- 👤 Jurgen Habermeier
- 👤 Godwin Berner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:31
CPC Classifications
C; C07; C07F; C07F3/00; C07F3/003; C07F1/00; C07F1/005; C07F15/00; C07F15/04; C07F15/045; C07F15/06; C07F15/065; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3897; C08G63/00; C08G63/68; C08G69/00; C08G69/42; H; H10; H10P; H10P50/00; H10P50/71
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
149 words
A metal complex, of an N-hydroxyalkylated or N-aminoalkylated, branched α-aminocarboxylic acid and a divalent metal cation, of the formula ##STR5## wherein X represents hydroxyl or aminomethyl, R 1 represents hydrogen, alkyl of 1 to 4 carbon atoms or phenyl, R 2 represents hydrogen, and with the proviso that when R 1 is alkyl of 1 to 4 carbon atoms or phenyl, R 2 also represents alkyl of 1 to 4 carbon atoms, or R 1 and R 2 together represent tetramethylene, R 3 and R 4 are the same or different and each independently represents alkyl of 1 to 4 carbon atoms, cycloalkyl of 5 or 6 carbon atoms, phenyl or benzyl, or said phenyl or said benzyl substituted by alkyl of 1 to 12 carbon atoms, or together R 3 and R 4 represent tetramethylene or pentamethylene, and M represents a divalent copper, zinc, cobalt or nickel cation.
Claim 2
Dependent Claim
149 words
A metal complex, of an N-hydroxyalkylated or N-aminoalkylated, branched α-aminocarboxylic acid and a divalent metal cation, of the formula ##STR5## wherein X represents hydroxyl or aminomethyl, R 1 represents hydrogen, alkyl of 1 to 4 carbon atoms or phenyl, R 2 represents hydrogen, and with the proviso that when R 1 is alkyl of 1 to 4 carbon atoms or phenyl, R 2 also represents alkyl of 1 to 4 carbon atoms, or R 1 and R 2 together represent tetramethylene, R 3 and R 4 are the same or different and each independently represents alkyl of 1 to 4 carbon atoms, cycloalkyl of 5 or 6 carbon atoms, phenyl or benzyl, or said phenyl or said benzyl substituted by alkyl of 1 to 12 carbon atoms, or together R 3 and R 4 represent tetramethylene or pentamethylene, and M represents a divalent copper, zinc, cobalt or nickel cation.
Claim 3
Dependent Claim
50 words
A metal complex of the formula I according to claim 1 wherein R 3 and R 4 are alkyl of 1 to 2 carbon atoms, cycloalkyl of 5 or 6 carbon atoms, phenyl or benzyl; or said phenyl or said benzyl substituted by alkyl of 1 to 6 carbon atoms.
Claim 4
Dependent Claim
27 words
A metal complex of the formula I according to claim 1 wherein R 1 represents hydrogen, methyl, ethyl or phenyl, or together with R 2 represents tetramethylene.
Claim 5
Dependent Claim
10 words
The metal complex according to claim 1 which is nickel-bis-(N-β-hydroxyethyl-α-aminocyclohexanecarboxylate).
Claim 6
Dependent Claim
10 words
The metal complex according to claim 1 which is nickel-bis-(N-β-hydroxyethyl-α-methyl-α-aminopropionate).
Claim 7
Dependent Claim
10 words
The metal complex according to claim 1 which is copper-bis-(N-β-hydroxyethyl-α-aminocyclohexanecarboxylate).
Claim 8
Dependent Claim
10 words
The metal complex according to claim 1 which is zinc-bis-(N-β-hydroxyethyl-α-methyl-α-aminopropionate).
Claim 9
Dependent Claim
10 words
The metal complex according to claim 1 which is nickel-bis-(N-3-aminopropyl-α-aminocyclohexanecarboxylate).
Claim 10
Dependent Claim
20 words
A metal complex of the formula I according to claim 1 wherein R 3 and R 4 are the same.
Claim 11
Dependent Claim
29 words
A metal complex of the formula I according to claim 1 wherein each of R 3 and R 4 independently represents methyl, ethyl or phenyl or together represent pentamethylene.
Claim 12
Dependent Claim
17 words
A metal complex of the formula I according to claim 1 wherein M is a nickel cation.
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) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |