US3893973A
Expired / Lapsed
US
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Manganese-(II) salts of phosphonic acid half-esters, polyamide stabilizers
Assignee: Novartis Corp
•
Filing: 1974-02-07
•
Granted: 1975-07-08
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Expires: 1994-02-07
Abstract
Abstract New manganese-(II) salts of phosphonic acid half-esters are used as stabilisers for polyamides. The new compounds are manufactured from the corresponding sodium salts of the phosphonic acid halfesters and a manganese-(II) salt.
Inventors
- 👤 Jean Rody
- 👤 Paul Moser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:34
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53; C08K5/5317
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
16 words
A COMPOSITION CONTAINING A POLYAMIDE AND A STABILIZING AMOUNT OF A COMPOUND OF THE FORMULA 1
Claim 2
Dependent Claim
16 words
A COMPOSITION CONTAINING A POLYAMIDE AND A STABILIZING AMOUNT OF A COMPOUND OF THE FORMULA 1
Claim 3
Dependent Claim
26 words
A composition of claim 1, wherein R1 is selected from the group consisting of alkyl with 1 to 18 carbon atoms, cyclohexyl, phenyl, benzyl and naphthylmethyl.
Claim 4
Dependent Claim
24 words
A composition of claim 1, wherein R1 is selected from the group consisting of alkyl with 1 to 12 carbon atoms, phenyl and benzyl.
Claim 5
Dependent Claim
34 words
A composition of claim 1, wherein R1 is selected from the group consisting of alkyl with 2 to 12 carbon atoms, phenyl and benzyl and R2 is alkyl with 2 to 18 carbon atoms.
Claim 6
Dependent Claim
23 words
A composition of claim 1 wherein R1 is selected from the group consisting of alkyl with 3 to 12 carbon atoms and benzyl.
Claim 7
Dependent Claim
60 words
A composition of claim 1, wherein A is selected from the group consising of the anion of an aliphatic carboxylic acid with 2 to 8 carbon atoms, the anion of an aromatic carboxylic acid with 7 to 8 carbon atoms, the chloride, bromide and iodide anion and R2 is selected from the group consisting methyl, ethyl, propyl, butyl and octyl.
Claim 8
Dependent Claim
44 words
A composition of claim 1, wherein A is selected from the group consisting of the anion of acetic acid, the anion of stearic acid, the chloride anion, and the iodide anion, and R2 is selected from the group consisting of methyl, ethyl and butyl.
Claim 9
Dependent Claim
13 words
A composition of claim 1, wherein x is 2 and y is 0.
Claim 10
Dependent Claim
16 words
A process for stabilizing polyamides, wherein a stabilizing amount of a compound of the formula I
Claim 11
Dependent Claim
16 words
A process for stabilizing polyamides, wherein a stabilizing amount of a compound of the formula I
Claim 12
Dependent Claim
26 words
A process of claim 9, wherein R1 is selected from the group consisting of alkyl with 1 to 18 carbon atoms, cyclohexyl, phenyl, benzyl and naphthylmethyl.
Claim 13
Dependent Claim
24 words
A process of claim 9, wherein R1 is selected from the group consisting of alkyl with 1 to 12 carbon atoms, phenyl and benzyl.
Claim 14
Dependent Claim
34 words
A process of claim 9, wherein R1 is selected from the group consisting of alkyl with 2 to 12 carbon atoms, phenyl and benzyl and R2 is alkyl with 2 to 18 carbon atoms.
Claim 15
Dependent Claim
23 words
A process of claim 9, wherein R1 is selected from the group consisting of alkyl with 3 to 12 carbon atoms and benzyl.
Claim 16
Dependent Claim
61 words
A process of claim 9, wherein A is selected from the group consisting of the anion of an aliphatic carboxylic acid with 2 to 8 carbon atoms, the anion of an aromatic carboxylic acid with 7 to 8 carbon atoms, the chloride, bromide and iodide anion and R2 is selected from the group consisting of methyl, ethyl, propyl, butyl, and octyl.
Claim 17
Dependent Claim
44 words
A process of claim 9, wherein A is selected from the group consisting of the anion of acetic acid, the anion of stearic acid, the chloride anion, and the iodide anion, and R2 is selected from the group consisting of methyl, ethyl, and butyl.
Claim 18
Dependent Claim
13 words
A process of claim 9, wherein x is 2 and y is 0.
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) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |