US4178434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amine-coupled polyepichlorohydrin and polyamines derived therefrom
Assignee: BASF Corp
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Filing: 1978-01-03
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Granted: 1979-12-11
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Expires: 1998-01-03
Abstract
Abstract Highly functional, substantially linear, polyamines are prepared by reacting a primary amine with an epihalohydrin oligomer or a mixture of an epihalohydrin oligomer and a halohydrin-terminated derivative of a polyol. Displacement of the haloalkyl halogen groups of the polyamine with amine groups provides highly functional amine intermediates which are useful in the preparation of drainage aids and the like.
Inventors
- 👤 William K. Langdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:10
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/02; C08G73/024; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/333; C08G65/33303; C08G65/33306; C08G65/338
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
100 words
A substantially linear polyamine, corresponding to the formula: ##STR9## wherein R is either C 1 to C 4 alkyl group, 2-hydroxyethyl--or 2-hydroxypropyl, X is halogen, Z is either hydrogen, methyl or ethyl, n is a whole number ranging from 2 to 30, m is an integer from 2 to about 100, a is a value from about 0 to about 20, b is a value from about 0 to 20, the polyamine comprising the reaction product of (a) an epihalohydrin oligomer or a mixture of an epihalohydrin oligomer and a halohydrin-terminated derivative of a polyol and (b) a primary amine.
Claim 2
Dependent Claim
100 words
A substantially linear polyamine, corresponding to the formula: ##STR9## wherein R is either C 1 to C 4 alkyl group, 2-hydroxyethyl--or 2-hydroxypropyl, X is halogen, Z is either hydrogen, methyl or ethyl, n is a whole number ranging from 2 to 30, m is an integer from 2 to about 100, a is a value from about 0 to about 20, b is a value from about 0 to 20, the polyamine comprising the reaction product of (a) an epihalohydrin oligomer or a mixture of an epihalohydrin oligomer and a halohydrin-terminated derivative of a polyol and (b) a primary amine.
Claim 3
Dependent Claim
12 words
The polyamine of claim 1 wherein: b is no greater than a.
Claim 4
Dependent Claim
9 words
The polyamine of claim 1 wherein: x is chlorine.
Claim 5
Dependent Claim
22 words
The polyamine of claim 1 wherein: the reactants are present in a respective molar ratio of from about 1:1 to about 1:5.
Claim 6
Dependent Claim
32 words
The polyamine of claim 1 wherein: the reaction proceeds at a temperature of from about 30° C. to about 130° C. for a period of from about 0.5 to about 5.0 hours.
Claim 7
Dependent Claim
24 words
The polyamine of claim 1 wherein: (a) is an epichlorohydrin oligomer and (b) is an alkyl amine having from 1 to 4 carbon atoms.
Claim 8
Dependent Claim
10 words
The polyamine of claim 6 wherein: the amine is isopropylamine.
Claim 9
Dependent Claim
19 words
The polyamine of claim 1 wherein: the oligomer and polyol are employed in a molar ratio of about 1:1.
Claim 10
Dependent Claim
20 words
The polyamine of claim 1 wherein: the polyol comprises the reaction product of a polyoxyalkylene polyether polyol and an epihalohydrin.
Claim 11
Dependent Claim
32 words
A method for forming a polyfunctional polyamine, comprising: reacting an amine selected from the group consisting of primary, secondary, tertiary mono- or polyamine and mixtures thereof with the polyamine of claim 1.
Claim 12
Dependent Claim
33 words
The polyamine of claim 1 wherein the polyamine is prepared from the reaction of (a) the mixture of an epihalohydrin oligomer and a halohydrin-terminated derivative of a polyol and (b) a primary amine.
Claim 13
Dependent Claim
12 words
The polyamine of claim 11 wherein the polyol is a polyoxyalkylene glycol.
Claim 14
Dependent Claim
28 words
The polyamine of claim 11 wherein the reaction proceeds at a temperature of from about 30° C. to about 130° C. for about 0.5 to about 5.0 hours.
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) | 1982-12-10 | 1983-06-11 | 1983-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-10 | 1987-06-11 | 1987-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-10 | 1991-06-11 | 1991-12-11 | $7700.00 | Window Closed / Lapsed |