US4362886A
Expired / Lapsed
US
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Preparation of linear polyalkylene polyamines using metal catalyst
Assignee: Air Products and Chemicals Inc
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Filing: 1981-01-05
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Granted: 1982-12-07
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Expires: 2001-01-05
Abstract
Abstract A process for selectively preparing predominantly non-cyclic polyalkylene polyamine compounds is disclosed wherein an alkylene polyamine compound is contacted with a hydroxy compound in the presence of a catalytically effective amount of a substance of arsenic, antimony or bismuth at a temperature of from 250° to 300° C. under a pressure sufficient to maintain the reaction mixture essentially in liquid phase. The polyalkylene polyamine thus formed is recovered from the reaction mixture.
Inventors
- 👤 Michael E. Ford
- 👤 Thomas A. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:01
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
140 words
A process for preparing a noncyclic polyalkylene polyamine comprising the steps of: contacting an alkyleneamine compound having two primary amino groups of the formula: ##STR4## wherein R is hydrogen or a lower alkyl, X is a number from 2 to about 6, and Y is a number from 1 to about 4 with a hydroxy compound having primary or secondary hydroxyl groups of the general formula: ##STR5## wherein R is hydrogen or a lower alkyl, X is a number from 2 to about 6; and Y is a number from 0 to about 3; said contacting being performed in the presence of a catalytically effective amount of a compound containing bismuth, arsenic or antimony at temperatures sufficient to effect reaction between said alkyleneamine and said hydroxy compound under a pressure sufficient to maintain the reaction mixture essentially in liquid phase.
Claim 2
Dependent Claim
140 words
A process for preparing a noncyclic polyalkylene polyamine comprising the steps of: contacting an alkyleneamine compound having two primary amino groups of the formula: ##STR4## wherein R is hydrogen or a lower alkyl, X is a number from 2 to about 6, and Y is a number from 1 to about 4 with a hydroxy compound having primary or secondary hydroxyl groups of the general formula: ##STR5## wherein R is hydrogen or a lower alkyl, X is a number from 2 to about 6; and Y is a number from 0 to about 3; said contacting being performed in the presence of a catalytically effective amount of a compound containing bismuth, arsenic or antimony at temperatures sufficient to effect reaction between said alkyleneamine and said hydroxy compound under a pressure sufficient to maintain the reaction mixture essentially in liquid phase.
Claim 3
Dependent Claim
16 words
The process of claim 1 wherein said compound containing bismuth, arsenic or antimony is a salt.
Claim 4
Dependent Claim
13 words
The process of claim 2 wherein said salt is an arsenic containing salt.
Claim 5
Dependent Claim
33 words
The process of claim 1 wherein the level of said catalytic substance is from about 0.01 to 2.0 mole percent based upon the amount of said alkyleneamine compound present in the reaction mixture.
Claim 6
Dependent Claim
18 words
The process of claim 4 wherein the temperature of the reaction is from about 225° to 350° C.
Claim 7
Dependent Claim
22 words
The process of claim 5 wherein the molar ratio of alkyleneamine compound to hydroxy compound is from about 0:3 to about 5.
Claim 8
Dependent Claim
18 words
The process of claim 2 wherein said salt is an oxygen containing salt of antimony, bismuth, or arsenic.
Claim 9
Dependent Claim
25 words
The process of claim 7 wherein said salt is selected from the group consisting of arsenic petroxide, alkali metal arsenate, antimony oxide, and bismuth oxide.
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) | 1985-12-06 | 1986-06-07 | 1986-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-06 | 1990-06-07 | 1990-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-06 | 1994-06-07 | 1994-12-07 | $7700.00 | Window Closed / Lapsed |