US4598108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water reducible composition based on an epoxy resin
Assignee: Akzo NV
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Filing: 1985-06-27
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Granted: 1986-07-01
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Expires: 2005-06-27
Abstract
Abstract The invention provides a water-reducible coating composition comprising an epoxy resin, an amino group-containing curing agent for the epoxy resin and a watersoluble organic compound which occurs in at least 2 tautomeric forms, in one of which a labile hydrogen atom is linked to a carbon atom and which compound contains at least one carbonyloxy group or sulfonyl group.
Inventors
- 👤 Cornelis A. M. Hoefs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:48
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C09; C09D; C09D163/00; C08J2363/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
A water-reducible coating composition comprising an epoxy resin, an amino group-containing curing agent for it and an emulsifying auxiliary compound, characterized in that the emulsifying auxiliary compound is a water soluble organic compound which occurs in at least 2 tautomeric forms, in one of which a labile hydrogen atom is linked to a carbon atom and which compound contains at least one carbonyloxy group or sulfonyl group.
Claim 2
Dependent Claim
67 words
A water-reducible coating composition comprising an epoxy resin, an amino group-containing curing agent for it and an emulsifying auxiliary compound, characterized in that the emulsifying auxiliary compound is a water soluble organic compound which occurs in at least 2 tautomeric forms, in one of which a labile hydrogen atom is linked to a carbon atom and which compound contains at least one carbonyloxy group or sulfonyl group.
Claim 3
Dependent Claim
19 words
The coating composition of claim 1, wherein the emulsifying auxiliary compound is an alkyl cyanoacetate or an alkyl monochloroacetate.
Claim 4
Dependent Claim
24 words
The coating composition of claim 1, wherein the emulsifying auxiliary compound is the methyl or ethyl ester of cyanoacetic acid or of monochloroacetic acid.
Claim 5
Dependent Claim
42 words
The coating composition of claim 1, wherein the water soluble organic compound which occurs in at least 2 tautomeric forms is present in an amount such that 0.25-2 labile hydrogen toms are present per nitrogen atom of the amino group-containing curing agent.
Claim 6
Dependent Claim
23 words
A process for coating a substrate with a water-reducible composition, by applying the composition according to claim 1 to the substate and curing.
Claim 7
Dependent Claim
46 words
A mixture of an epoxy resin and a water soluble organic compound which occurs in at least 2 tautomeric forms, in one of which a labile hydrogen atom is linked to a carbon atom and which compound contains at least one carbonyloxy group or sulphonyl group.
Claim 8
Dependent Claim
46 words
A mixture of an epoxy resin and a water soluble organic compound which occurs in at least 2 tautomeric forms, in one of which a labile hydrogen atom is linked to a carbon atom and which compound contains at least one carbonyloxy group or sulphonyl group.
Claim 9
Dependent Claim
14 words
The mixture of claim 6, also containing an organic solvent for the epoxy resin.
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) | 1989-06-30 | 1989-12-30 | 1990-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-30 | 1993-12-30 | 1994-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-30 | 1997-12-30 | 1998-07-01 | $7700.00 | Window Closed / Lapsed |