US4134994A
Expired / Lapsed
US
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Amine salts of tertiary amino acids
Assignee: Air Products and Chemicals Inc
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Filing: 1976-12-01
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Granted: 1979-01-16
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Expires: 1996-12-01
Abstract
Abstract Amine salts of tertiary amino acids have been found to be effective as catalysts for polyurethane synthesis and they have been found to exhibit delayed action, in many instances, in the polymerization of urethanes. Typically, the amine salts of tertiary amino acids are formed by initially reacting a primary or secondary amine with an aldehyde and disubstituted acid to form a Mannich adduct and then reacting the resulting Mannich acid adduct with an amine.
Inventors
- 👤 Ibrahim S. Bechara
- 👤 Philip J. Zaluska
- 👤 Rocco L. Mascioli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:20
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/14; C07D295/145; C07D295/15; C07D233/00; C07D233/04; C07D233/06; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/54; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/16; C08G18/161; C08G18/163; C08G18/18
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
181 words
An amine salt of a tertiary amino acid represented by the formula: ##STR2## wherein in the formula R 1 and R 2 independently are alkyl, hydroxy substituted alkyl groups having from 1 to 15 carbon atoms, or lower alkanol groups having from 2 to 4 carbon atoms; wherein R 5 is hydrogen, a lower alkyl group having from 1 to 6 carbon atoms, an alkenyl group having from 2 to 6 carbon atoms, an aryl group, a cycloaliphatic or alkyl substituted cycloaliphatic group with the alkyl portion having from 1 to 6 carbons, or a keto alkyl group with the alkyl portion having from 1-6 carbon atoms; wherein R 6 is hydrogen, or a radical selected from the group consisting of alkyl, phenyl, and a napthyl groups; wherein X is an amine salt of a carboxylic acid group; wherein Y is a carboxylic acid group, or an amine salt of a carboxylic acid group; wherein q is 0 or 1; wherein p is 1 or 2; wherein s is 0 or 1; and wherein p + q + s is 3.
Claim 2
Dependent Claim
181 words
An amine salt of a tertiary amino acid represented by the formula: ##STR2## wherein in the formula R 1 and R 2 independently are alkyl, hydroxy substituted alkyl groups having from 1 to 15 carbon atoms, or lower alkanol groups having from 2 to 4 carbon atoms; wherein R 5 is hydrogen, a lower alkyl group having from 1 to 6 carbon atoms, an alkenyl group having from 2 to 6 carbon atoms, an aryl group, a cycloaliphatic or alkyl substituted cycloaliphatic group with the alkyl portion having from 1 to 6 carbons, or a keto alkyl group with the alkyl portion having from 1-6 carbon atoms; wherein R 6 is hydrogen, or a radical selected from the group consisting of alkyl, phenyl, and a napthyl groups; wherein X is an amine salt of a carboxylic acid group; wherein Y is a carboxylic acid group, or an amine salt of a carboxylic acid group; wherein q is 0 or 1; wherein p is 1 or 2; wherein s is 0 or 1; and wherein p + q + s is 3.
Claim 3
Dependent Claim
26 words
The amine salt of claim 1 wherein when R 1 and R 2 are alkyl groups, such alkyl groups have from 1 to 6 carbon atoms.
Claim 4
Dependent Claim
10 words
The amine salt of claim 2 wherein s is 1.
Claim 5
Dependent Claim
13 words
The amine salt of claim 3 wherein R 6 is hydrogen, or phenyl.
Claim 6
Dependent Claim
14 words
The amine salt of claim 3 wherein p is 2 and q is 0.
Claim 7
Dependent Claim
14 words
The amine salt of claim 3 wherein R 5 is hydrogen, methyl or benzyl.
Claim 8
Dependent Claim
24 words
The amine salt of claim 1 wherein R 1 and R 2 is a lower alkanol group having from 2 to 3 carbon atoms.
Claim 9
Dependent Claim
17 words
The amine salt of claim 7 wherein Y is an amine salt of a carboxylic acid group.
Claim 10
Dependent Claim
17 words
The amine salt of claim 8 wherein X and Y are tertiary amine salts of carboxylic acids.
Claim 11
Dependent Claim
37 words
The amine salt of claim 9 wherein the tertiary amine salts are selected from the group consisting of trialkyl amines having from 1 to 3 carbon atoms, trialkanolamines having from 2 to 3 carbon atoms and triethylenediamine.
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) | 1982-01-15 | 1982-07-17 | 1983-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-15 | 1986-07-17 | 1987-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-15 | 1990-07-17 | 1991-01-16 | $7700.00 | Window Closed / Lapsed |