US4250299A
Expired / Lapsed
US
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Polyamines containing amide groups
Assignee: Bayer AG
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Filing: 1978-12-15
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Granted: 1981-02-10
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Expires: 1998-12-15
Abstract
Abstract Water-soluble polyamines which are obtainable by reacting (A) one or more water-soluble or water-dispersible basic polyamides which have been prepared by condensation of aliphatic polyamines containing at least two primary amino groups and at least one secondary or tertiary amino group, or of mixtures of these polyamines and of aliphatic, cycloaliphatic, araliphatic or heterocyclic polyamines containing two primary or two secondary amino groups or one primary and one secondary amino group, with saturated aliphatic dicarboxylic acids containing 4-10 carbon atoms, or with functional derivatives thereof and optionally with omega -aminocarboxylic acids containing at least 3 carbon atoms, or lactams thereof, (B) one or more polyalkylenepolyamines of the general formula <IMAGE> in which R denotes H or CH3, y is in each case the same or different and denotes the number 0 or 1 and x denotes a number from 4 to 2,500, or mixtures of these polyalkylenepolyamines with amines of the same general formula, but in which X denotes a number from 1 to 3, and (C) compounds which are polyfunctional towards amino groups, are suitable as agents for increasing the retention of fibres, fillers and pigments, for accelerating drainage during the production of paper and for working up effluents from paper machines.
Inventors
- 👤 Wolfgang Lehmann
- 👤 Friedhelm Muller
- 👤 Gunther Cramm
- 👤 Knut Hammerstrom
- 👤 Wilfried Lobach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:25
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/48; C08G73/00; C08G73/02; C08G73/0206; C08G73/028; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/54; D21H17/55
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
208 words
A water-soluble polyamine, obtained by reacting (A) at least one water-soluble or water-dispersible basic polyamide which has been prepared by condensation of at least one aliphatic polyamine containing at least two primary amino groups and at least one secondary or tertiary amino group, or of a mixture of such a polyamine and at least one aliphatic, cycloaliphatic, araliphatic or heterocyclic polyamine containing two primary or two secondary amino groups or one primary and one secondary amino group, with at least one saturated aliphatic dicarboxylic acid containing 4-10 carbon atoms, or with an amide-forming derivative thereof, (B) at least one polyalkylenepolyamine of the general formula ##STR7## in which R denotes H or CH 3 , Y is in each case the same or different and denotes the number 0 or 1 and x denotes a number from 4 to 2,500, or a mixture of such a polyalkylenepolyamine with at least one amine of the same general formula, but in which x denotes a number from 1 to 3, the weight ratio of basic polyamides A to polyalkylenepolyamines B ranging from 1 to 10:10 to 1, and (C) an α,ω-alkyl dihalide, 0.01-0.5 mol of alkyl dihalide being used per mol of basic nitrogen atom in the basic polyamide and polyalkylenepolyamine.
Claim 2
Dependent Claim
208 words
A water-soluble polyamine, obtained by reacting (A) at least one water-soluble or water-dispersible basic polyamide which has been prepared by condensation of at least one aliphatic polyamine containing at least two primary amino groups and at least one secondary or tertiary amino group, or of a mixture of such a polyamine and at least one aliphatic, cycloaliphatic, araliphatic or heterocyclic polyamine containing two primary or two secondary amino groups or one primary and one secondary amino group, with at least one saturated aliphatic dicarboxylic acid containing 4-10 carbon atoms, or with an amide-forming derivative thereof, (B) at least one polyalkylenepolyamine of the general formula ##STR7## in which R denotes H or CH 3 , Y is in each case the same or different and denotes the number 0 or 1 and x denotes a number from 4 to 2,500, or a mixture of such a polyalkylenepolyamine with at least one amine of the same general formula, but in which x denotes a number from 1 to 3, the weight ratio of basic polyamides A to polyalkylenepolyamines B ranging from 1 to 10:10 to 1, and (C) an α,ω-alkyl dihalide, 0.01-0.5 mol of alkyl dihalide being used per mol of basic nitrogen atom in the basic polyamide and polyalkylenepolyamine.
Claim 3
Dependent Claim
22 words
A water-soluble polyamine according to claim 1, wherein virtually all the functional groups of the alkyl dihalide have reacted during the reaction.
Claim 4
Dependent Claim
34 words
A water-soluble polyamine according to 1, wherein the reaction product of 1 mol of 1,2-dichloroethane with 6 to 30 mols of ammonia, which has been freed from ethylenediamine, is employed as the polyalkylenepolyamine B.
Claim 5
Dependent Claim
34 words
A water-soluble polyamine according to 1, wherein the reaction product of 1 mol of 1,2-dichloroethane with 6 to 30 mols of ammonia, which has been freed from ethylenediamine, is employed as the polyalkylenepolyamine B.
Claim 6
Dependent Claim
37 words
A water-soluble polyamine according to claim 3, wherein the reaction product of 1 mol of 1,2-dichloroethane and 6 to 30 mols of ammonia in the presence of 0.1-1 mol of ethylenediamine, is employed as the polyalkylenepolyamine B.
Claim 7
Dependent Claim
37 words
A water-soluble polyamine according to claim 1, wherein the reaction product of 1 mol of 1,2-dichloroethane with 6 to 30 mols of ammonia, which has been freed from ethylenediamine and diethylenetriamine, is used as the polyalkylenepolyamine B.
Claim 8
Dependent Claim
39 words
A water-soluble polyamine according to claim 5, wherein the reaction product of 1 mol of 1,2-dichloroethane with 6 to 30 mols of ammonia in the presence of 0.1-1 mol of ethylenediamine and diethylenetriamine, is employed as the polyalkylenepolyamine B.
Claim 9
Dependent Claim
45 words
A water-soluble polyamine according to claim 1, wherein the amine prepared by condensation of 1,2-dichloroethane with at least one polyethylenepolyamine of the general formula H.sub.2 N--(--CH.sub.2 CH.sub.2 NH--).sub.x H in which x denotes a number from 1 to 15, is used as the polyethylenepolyamine B.
Claim 10
Dependent Claim
29 words
A water-soluble polyamine according to claim 1, wherein the reaction product of the polyamine with the dicarboxylic acid in the molar ratio 0.8-1.4:1 is used as the polyamide A.
Claim 11
Dependent Claim
15 words
A water-soluble polyamine according to claim 1, wherein 1,2-dichloroethane is used as the alkyl dihalide.
Claim 12
Dependent Claim
27 words
A water-soluble polyamine according to claim 1, wherein the basic polyamide A and the polyalkylenepolyamine B are employed in weight ratios of 1 to 2.5:2.5 to 1.
Claim 13
Dependent Claim
27 words
A water-soluble polyamine according to claim 1, wherein 0.03-0.40 mol of alkyl dihalide are used per mol of basic nitrogen atom in the basic polyamide and polyalkylenepolyamine.
Claim 14
Dependent Claim
49 words
Process for the preparation of a water-soluble polyamine according to claim 1, wherein the reaction of reactants A, B and C is carried out in an aqueous medium at a temperature from 0° to 120° C., at a total concentration of 10-60% and at a pH value above 6.
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) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |