Patent US4427804A successfully refreshed from Google Patents.
US4427804A
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Primary amine functional polymer compositions and coatings
Assignee: PRC Desoto International Inc
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Filing: 1982-03-01
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Granted: 1984-01-24
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Expires: 2002-03-01
Abstract
Abstract A monosecondary amine containing blocked primary amine groups is provided by reacting a monosecondary amine containing at least one primary amine group (such as diethylene triamine) with a ketone which is hindered to prevent reaction with secondary amino hydrogen atom (such as methyl isobutyl ketone) while removing water. This product disperses in water with the aid of a solubilizing acid to provide a solution which will emulsify a liquid polymer dispersed therein. The water hydrolyzes the blocked primary amine groups to restore reactivity. This product can also be reacted with 1,2-oxirane or isocyanate-functional polymers to provide products which are dispersible in water with a solubilizing acid. These dispersions will electrodeposit at the cathode.
Inventors
- 👤 Anthony J. Tortorello
- 👤 Mary A. Kinsella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:12
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4419; C09D5/4465; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4042; C09D5/443; C09D5/4434; C09D5/4438; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
103 words
An emulsion of a liquid polyepoxide polymer in a water solution of a monosecondary amine containing at least one primary amine group which is ketimine blocked by reaction with a ketone which is hindered to prevent reaction with a secondary amino hydrogen atom, said hindered ketone being selected from the group consisting of noncyclic ketones containing one group selected from methyl or ethyl and a second group containing at least four carbon atoms, and cyclic ketones which are substituted in the alpha position, and said monosecondary amine being dispersed in the water of said emulsion with the aid of a volatile solubilizing acid.
Claim 2
Dependent Claim
103 words
An emulsion of a liquid polyepoxide polymer in a water solution of a monosecondary amine containing at least one primary amine group which is ketimine blocked by reaction with a ketone which is hindered to prevent reaction with a secondary amino hydrogen atom, said hindered ketone being selected from the group consisting of noncyclic ketones containing one group selected from methyl or ethyl and a second group containing at least four carbon atoms, and cyclic ketones which are substituted in the alpha position, and said monosecondary amine being dispersed in the water of said emulsion with the aid of a volatile solubilizing acid.
Claim 3
Dependent Claim
15 words
An emulsion as recited in claim 1 in which said monosecondary amine is diethylene triamine.
Claim 4
Dependent Claim
17 words
An emulsion as recited in claims 1 or 2 in which said ketone is methyl isobutyl ketone.
Claim 5
Dependent Claim
136 words
An emulsion of a liquid polyepoxide polymer in a water solution of the addition reaction product of a polymer containing a functional group selected from 1,2-oxirane and isocyanate with a stoichiometric proportion of a monosecondary amine containing at least one primary amine group which is ketimine blocked by reaction with a secondary amino hydrogen atom, said hindered ketone being selected from the group consisting of noncyclic ketones containing one group selected from methyl or ethyl and a second group containing at least four carbon atoms, and cyclic ketones which are substituted in the alpha position, said stoichiometry being based on said oxirane or isocyanate group in said polymer and secondary amine groups in said monosecondary amine, and said reaction product being dispersed in the water of said emulsion with the aid of a volatile solubilizing acid.
Claim 6
Dependent Claim
136 words
An emulsion of a liquid polyepoxide polymer in a water solution of the addition reaction product of a polymer containing a functional group selected from 1,2-oxirane and isocyanate with a stoichiometric proportion of a monosecondary amine containing at least one primary amine group which is ketimine blocked by reaction with a secondary amino hydrogen atom, said hindered ketone being selected from the group consisting of noncyclic ketones containing one group selected from methyl or ethyl and a second group containing at least four carbon atoms, and cyclic ketones which are substituted in the alpha position, said stoichiometry being based on said oxirane or isocyanate group in said polymer and secondary amine groups in said monosecondary amine, and said reaction product being dispersed in the water of said emulsion with the aid of a volatile solubilizing acid.
Claim 7
Dependent Claim
22 words
An emulsion as recited in claim 4 in which said monosecondary amine is diethylene triamine and said ketone is methyl isobutyl ketone.
Claim 8
Dependent Claim
21 words
An emulsion as recited in claim 4 in which said addition reaction product is of a polymer containing isocyanate functional groups.
Claim 9
Dependent Claim
22 words
An emulsion as recited in claim 6 in which said monosecondary amine is diethylene triamine and said ketone is methyl isobutyl ketone.
Claim 10
Dependent Claim
29 words
An emulsion as recited in claim 4 in which said addition reaction product is of a polymer containing 1,2-oxirane functional groups, said polymer being a glycidyl-functional acrylic solution copolymer.
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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) | 1987-01-23 | 1987-07-25 | 1988-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-23 | 1991-07-25 | 1992-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-23 | 1995-07-25 | 1996-01-24 | $7700.00 | Window Closed / Lapsed |