US4152346A
Expired / Lapsed
US
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Beta-aminoethylsilanes and a method of preparing same
Assignee: Dynamit Nobel AG
•
Filing: 1974-12-17
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Granted: 1979-05-01
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Expires: 1994-12-17
Abstract
Abstract Aminoethylsilanes of the following formula: ##STR1## AMINOETHYLSILOXANES HAVING THE STRUCTURAL UNITS ##STR2## IN WHICH R' represents an aliphatic, saturated or unsaturated hydrocarbon group having 1 to 10 carbon atoms, R" represents an alkyl or oxalkyl radical or the phenyl radical, and a can be equal to 0 or 1 and x equal to 0 or 1 or 2; a process for preparing such aminoethylsilane or aminoethylsiloxane which comprises contacting a beta-halogenethylsilane of the formula: ##STR3## A SILOXANE WITH THE RECURRENT STRUCTURAL UNIT ##STR4## WHEREIN R' is a saturated or unsaturated aliphatic hydrocarbon radical, R" is an alkyl, oxyalkyl or phenyl radical, Y is a halogen atom, a is O or 1 and with ammonia at a temperature between 50 and 120° C.
Inventors
- 👤 Claus-Dietrich Seiler
- 👤 Hans-Peter Schwarz
- 👤 Hans-Joachim Kotzsch
- 👤 Hans-Joachim Vahlensteck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:46
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
43 words
A compound which is an aminoethylsilane of the formula H.sub.x N-[CH.sub.2 -CH.sub.2 -Si(OR").sub.3 ].sub.3-X or an aminoethylsiloxane have a structural unit [H.sub.2 N-CH.sub.2 -CH.sub.2 -Si O.sub.3/2 ] wherein R" is an alkyl, oxyalkyl or phenyl radical and x is 0, 1, or 2.
Claim 2
Dependent Claim
43 words
A compound which is an aminoethylsilane of the formula H.sub.x N-[CH.sub.2 -CH.sub.2 -Si(OR").sub.3 ].sub.3-X or an aminoethylsiloxane have a structural unit [H.sub.2 N-CH.sub.2 -CH.sub.2 -Si O.sub.3/2 ] wherein R" is an alkyl, oxyalkyl or phenyl radical and x is 0, 1, or 2.
Claim 3
Dependent Claim
10 words
A compound according to claim 1 which is an aminoethylsilane.
Claim 4
Dependent Claim
10 words
A compound according to claim 1 which is an aminoethylsiloxane.
Claim 5
Dependent Claim
10 words
A compound according to claim 1 which is a β-aminoethyltriethoxysilane.
Claim 6
Dependent Claim
10 words
A compound according to claim 1 which is a bis-(triethyoxysilylethyl)-amine.
Claim 7
Dependent Claim
66 words
A process for preparing an aminoethylsilane or an aminoethylsiloxane which comprises contacting a β-halogenethylsilane of the formula ##STR11## or a siloxane with a repeating structural unit ##STR12## wherein R" is an alkyl, oxyalkyl or phenyl radical, R' is a saturated or unsaturated aliphatic hydrocarbon radical, Y is a halogen atom, a is 0 or 1, with ammonia at a temperature of between 50° and 120° C.
Claim 8
Dependent Claim
66 words
A process for preparing an aminoethylsilane or an aminoethylsiloxane which comprises contacting a β-halogenethylsilane of the formula ##STR11## or a siloxane with a repeating structural unit ##STR12## wherein R" is an alkyl, oxyalkyl or phenyl radical, R' is a saturated or unsaturated aliphatic hydrocarbon radical, Y is a halogen atom, a is 0 or 1, with ammonia at a temperature of between 50° and 120° C.
Claim 9
Dependent Claim
12 words
A process according to claim 6 wherein the reactant is a β-halogenethylsilane.
Claim 10
Dependent Claim
12 words
A process according to claim 6 wherein the reactant is said siloxane.
Claim 11
Dependent Claim
20 words
A process according to claim 6 wherein a molar ratio of chlorosilane to ammonia of at least 1:2 is employed.
Claim 12
Dependent Claim
17 words
A process according to claim 9 wherein at least a 10 mole excess of ammonia is employed.
Claim 13
Dependent Claim
15 words
A process according to claim 6 wherein the process is conducted at an elevated pressure.
Claim 14
Dependent Claim
24 words
A process according to claim 11 wherein the pressure is that resulting from the vapor pressure of the ammonia at the reaction temperatures employed.
Claim 15
Dependent Claim
17 words
A process according to claim 6 carried out at a pressure of between 10 and 50 atmospheres.
Claim 16
Dependent Claim
19 words
A process according to claim 6 wherein the mol ratio of ammonia to β-halogenethylsilane or said siloxane is 2-60:1.
Claim 17
Dependent Claim
19 words
A process according to claim 6 wherein the mol ratio of ammonia to β-halogenethylsilane or said siloxane is 10-30:1.
Claim 18
Dependent Claim
21 words
A process according to claim 6 wherein there are 60 or more mols of ammonia per mol of β-halogenethylsilane or siloxane.
Claim 19
Dependent Claim
18 words
A process according to claim 13 wherein the mol ratio of ammonia to β-halogenethylsilane or siloxane is 10-30:1.
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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) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |