US4181624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aminoalkanols
Assignee: Henkel AG and Co KGaA
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Filing: 1978-03-24
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Granted: 1980-01-01
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Expires: 1998-03-24
Abstract
Abstract The invention provides novel mixtures of at least two aminoalkanols of the formula: ##STR1## wherein R 1 and R 2 each represent a C 1-21 alkyl and the sum of the carbon atoms in R 1 and R 2 is 6 to 22; and the R 1 --CH--CH--R 2 units are mixtures containing 8 to 24 carbon atoms of at least two compounds. The vicinal OH and NH 2 substituents are uniformly distributed statistically along the chain. The mixtures are readily prepared from mixtures of C 8 -C 24 olefins by epoxidation followed by reaction with ammonia. The mixtures are useful as intermediates in the production of hydroxyalkyl-aminobutyric acid mixtures for lubricating the cold working of aluminum and as corrosion inhibitors for corrodible iron-containing metals.
Inventors
- 👤 Karl H. Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:03
CPC Classifications
C; C10; C10M; C10M3/00; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M133/08; C10M2201/00; C10M2201/02; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10N; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
53 words
Mixtures of at least two aminoalkanols of the formula: ##STR5## wherein R 1 and R 2 represent C 1-21 alkyl; and wherein the sum of the carbon atoms in R 1 and R 2 is between 6 and 22 and the vicinal substituents are uniformly distributed along the R 1 --CH--CH--R 2 chain.
Claim 2
Dependent Claim
53 words
Mixtures of at least two aminoalkanols of the formula: ##STR5## wherein R 1 and R 2 represent C 1-21 alkyl; and wherein the sum of the carbon atoms in R 1 and R 2 is between 6 and 22 and the vicinal substituents are uniformly distributed along the R 1 --CH--CH--R 2 chain.
Claim 3
Dependent Claim
23 words
Aminoalkanol mixtures of claim 1 wherein the sum of the carbon atoms in R 1 and R 2 is between 9 and 12.
Claim 4
Dependent Claim
22 words
Aminoalkanol mixtures of claim 1 wherein the sum of carbon atoms in R 1 and R 2 is between 13 and 16.
Claim 5
Dependent Claim
18 words
Salts of the aminoalkanol mixtures of claim 1 with aliphatic carboxylic acids of 2 and 24 carbon atoms.
Claim 6
Dependent Claim
90 words
A method for the preparation of the aminoalkanol mixture of Claim 1, which comprises forming a reaction mixture of (a) 1 mol of non-terminal epoxy alkanes produced by dehydrogenating a mixture of C 8 -C 24 paraffins, removing any polyolefins and terminally-unsaturated olefins normally thereby produced, and epoxidizing the residue, (b) 5 to 20 mols of ammonia, and (c) 1 to 20 mols of water, and heating the mixture under autogenous pressure in an autoclave at 160° C. to 220° C. until the mixture has come to substantial chemical equilibrium.
Claim 7
Dependent Claim
16 words
A method according to claim 5 wherein the amount of ammonia is 10 to 15 mols.
Claim 8
Dependent Claim
16 words
A method according to claim 5 wherein the amount of water is 5 to 15 mols.
Claim 9
Dependent Claim
21 words
A method according to claim 5 wherein the temperature of the mixture in the autoclave is 190° C. to 210° C.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-12-31 | 1983-07-02 | 1984-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-31 | 1987-07-02 | 1988-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-31 | 1991-07-02 | 1992-01-01 | $7700.00 | Window Closed / Lapsed |