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US4757113A
Expired / Lapsed
US
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Cationic water-dilutable binders and process for their production
Assignee: Allnex Austria GmbH
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Filing: 1987-05-27
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Granted: 1988-07-12
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Expires: 2007-05-27
Abstract
Abstract Cationic water-dilutable binders which are particularly useful in cathodically depositable coating compositions, which are crosslinked with polyisocyanate compounds, which are partially or totally blocked with enamines of C-H-active dicarbonyl compounds and a process for their preparation are described. Paints formulated on the basis of the described binders can be cured at temperatures at from 120° C. to provide resistant films.
Inventors
- 👤 Willibald Paar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:32
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/80; C08G18/8061; C08G18/8093; C08G18/807; C08G18/808; C09; C09D; C09D5/00; C09D5/44; C09D5/4488; C09D5/4496
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
75 words
Process for producing cationic water-dilutable binders comprising blending a resin component carrying functional groups reactive with an isocyanate group with a blocked polyisocyanate compound reactive in the presence of heat with the functional groups of said resin component to provide crosslinking, said blocked polyisocyanate compound being partially or totally blocked with NH-functional enamines obtained by reacting a C-H-active dicarbonyl compound with ammonia or a primary amine, said binder containing groups to render said binder water-dilutable.
Claim 2
Dependent Claim
75 words
Process for producing cationic water-dilutable binders comprising blending a resin component carrying functional groups reactive with an isocyanate group with a blocked polyisocyanate compound reactive in the presence of heat with the functional groups of said resin component to provide crosslinking, said blocked polyisocyanate compound being partially or totally blocked with NH-functional enamines obtained by reacting a C-H-active dicarbonyl compound with ammonia or a primary amine, said binder containing groups to render said binder water-dilutable.
Claim 3
Dependent Claim
12 words
The process according to claim 1 wherein said polyisocyanate compounds are semi-blocked.
Claim 4
Dependent Claim
13 words
The process according to claim 1 wherein said polyisocyanate compounds are totally blocked.
Claim 5
Dependent Claim
27 words
The process according to claim 1 wherein the functional groups of said resin component are hydroxyl groups or primary or secondary amino groups or a combination thereof.
Claim 6
Dependent Claim
14 words
The process according to claim 1 wherein said resin component is a polycondensation product.
Claim 7
Dependent Claim
18 words
The process according to claim 1 wherein the resin component is an addition polymer of ethylenically unsaturated monomers.
Claim 8
Dependent Claim
21 words
The process according to claim 1 wherein the C-H-active dicarbonyl compound is acetylacetone, an acetoacetate, or an N-substituted acetoacetic acid amide.
Claim 9
Dependent Claim
31 words
The process according to claim 2 wherein the semi-blocking of the isocyanate groups of said polyisocyanate compound with the NH-functional enamines is effected at a temperature between 20° and 30° C.
Claim 10
Dependent Claim
31 words
The process according to claim 3 wherein the total blocking of the isocyanate compound groups of said polyisocyanate with the enamines is effected at a temperature between 60° to 80° C.
Claim 11
Dependent Claim
14 words
The process according to claim 1 wherein the primary amine is a primary-tertiary amine.
Claim 12
Dependent Claim
13 words
The process according to claim 10 wherein said primary-tertiary amine is a dialkylaminoalkylamine.
Claim 13
Dependent Claim
38 words
The process according to claim 1 wherein the groups to render said binder water-dilutable are basic groups and said basic groups are introduced into said binder either totally or partially through tertiary amino groups on said semi-blocked diisocyanates.
Claim 14
Dependent Claim
74 words
Cationic water-dilutable binders comprising a blend of a resin component carrying functional groups reactive with an isocyanate group and a blocked polyisocyanate compound reactive in the presence of heat with the functional groups of said resin component to provide crosslinking, said blocked polyisocyanate compound being partially or totally blocked with NH-functional enamines obtained by reacting a C-H-active dicarbonyl compound with ammonia or a primary amine, said binder containing groups to render said binder water-dilutable.
Claim 15
Dependent Claim
74 words
Cationic water-dilutable binders comprising a blend of a resin component carrying functional groups reactive with an isocyanate group and a blocked polyisocyanate compound reactive in the presence of heat with the functional groups of said resin component to provide crosslinking, said blocked polyisocyanate compound being partially or totally blocked with NH-functional enamines obtained by reacting a C-H-active dicarbonyl compound with ammonia or a primary amine, said binder containing groups to render said binder water-dilutable.
Claim 16
Dependent Claim
12 words
The binders according to claim 13 wherein said polyisocyanate compounds are semi-blocked.
Claim 17
Dependent Claim
13 words
The binders according to claim 13 wherein said polyisocyanate compounds are totally blocked.
Claim 18
Dependent Claim
27 words
The binders according to claim 13 wherein the functional groups of said resin component are hydroxyl groups or primary or secondary amino groups or a combination thereof.
Claim 19
Dependent Claim
14 words
The binders according to claim 13 wherein said resin component is a polycondensation product.
Claim 20
Dependent Claim
18 words
The binders according to claim 13 wherein the resin component is an addition polymer of ethylenically unsaturated monomers.
Claim 21
Dependent Claim
21 words
The binders according to claim 13 wherein the C-H-active dicarbonyl compound is acetylacetone, an acetoacetate, or an N-substituted acetoacetic acid amide.
Claim 22
Dependent Claim
14 words
The binders according to claim 13 wherein the primary amine is a primary-tertiary amines.
Claim 23
Dependent Claim
13 words
The binders according to claim 20 wherein said primary-tertiary amine is a dialkylaminoalkylamine.
Claim 24
Dependent Claim
10 words
A paint composition containing the water-dilutable binders of claim 13.
Claim 25
Dependent Claim
12 words
A cathodically depositable electrodeposition paint containing the water-dilutable binders of claim 13.
Claim 26
Dependent Claim
15 words
The process of claim 1 wherein said resin component is an epoxy resin amine adduct.
Claim 27
Dependent Claim
15 words
The binders of claim 13 wherein said resin component is an epoxy resin amine adduct.
References Cited (Backward Citations)
US4101486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-12 | 1992-01-11 | 1992-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-12 | 1996-01-11 | 1996-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-12 | 2000-01-11 | 2000-07-12 | $7700.00 | Window Closed / Lapsed |