Patent US4279800A successfully refreshed from Google Patents.
US4279800A
Expired / Lapsed
US
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High solids pigmented coating composition containing a blend of ester diols and a curing agent
Assignee: Akzo NV
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Filing: 1980-04-15
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Granted: 1981-07-21
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Expires: 2000-04-15
Abstract
Abstract A pigment-containing high solids coating composition is prepared from a blend of ester diols as binder and a curing agent for the binder, characterized in that as ester diol there is used a mixture of (a) 20-80 mole % of a compound having the general formula: <IMAGE> where R1 represents the group formed by abstraction of the two carboxyl group from a cycloaliphatic and/or aromatic dicarboxylic acid having 8 to 20 carbon atoms and R2 and R3 may be the same or different and represent a hydrogen atom and/or a hydrocarbon group having 1 to 9 carbon atoms, and m is a number of 1-4, and of (b) 80-20 mole % of a compound having the general formula <IMAGE> where R4 represents the group formed by abstraction of the two carboxyl groups from a cycloaliphatic and/or aromatic dicarboxylic acid having 8 to 20 carbon atoms, and R5 represents the group formed by abstraction of the two hydroxyl groups from a terminal diol having 4 to 12 carbon atoms in the main chain, and n is a number of 1-4.
Inventors
- 👤 Ritse E. Boomgaard
- 👤 Roelof Buter
- 👤 Aleidus A. Kiffen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:47
CPC Classifications
C; C09; C09D; C09D161/00; C09D161/20; C09D167/00; C09D167/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
183 words
A pigment-containing high solids coating composition prepared from a blend of ester diols as binder and a curing agent for the binder, characterized in that as ester diol there is used a mixture of (a) 20-80 mole % of a compound having the general formula: ##STR5## where R 1 represents the group formed by abstraction of the two carboxyl groups from a cycloaliphatic and/or aromatic dicarboxylic acid having 8 to 20 carbon atoms and R 2 and R 3 may be the same or different and represent a hydrogen atom and/or a hydrocarbon group having 1 to 9 carbon atoms, and m is a number of 1-4, and of (b) 80-20 mole % of a compound having the general formula ##STR6## where R 4 represents the group formed by abstraction of the two carboxyl groups from a cycloaliphatic and/or aromatic dicarboxylic acid having 8 to 20 carbon atoms, and R 5 represents the group formed by abstraction of the two hydroxyl groups from a terminal diol having 4 to 12 carbon atoms in the main chain, and n is a number of 1-4.
Claim 2
Dependent Claim
183 words
A pigment-containing high solids coating composition prepared from a blend of ester diols as binder and a curing agent for the binder, characterized in that as ester diol there is used a mixture of (a) 20-80 mole % of a compound having the general formula: ##STR5## where R 1 represents the group formed by abstraction of the two carboxyl groups from a cycloaliphatic and/or aromatic dicarboxylic acid having 8 to 20 carbon atoms and R 2 and R 3 may be the same or different and represent a hydrogen atom and/or a hydrocarbon group having 1 to 9 carbon atoms, and m is a number of 1-4, and of (b) 80-20 mole % of a compound having the general formula ##STR6## where R 4 represents the group formed by abstraction of the two carboxyl groups from a cycloaliphatic and/or aromatic dicarboxylic acid having 8 to 20 carbon atoms, and R 5 represents the group formed by abstraction of the two hydroxyl groups from a terminal diol having 4 to 12 carbon atoms in the main chain, and n is a number of 1-4.
Claim 3
Dependent Claim
21 words
The coating composition of claim 1 characterized in that the molar ratio of the ester diols is between 3:1 and 1:3.
Claim 4
Dependent Claim
21 words
The coating composition of claim 1 characterized in that the molar ratio of the ester diols is between 2:1 and 1:2.
Claim 5
Dependent Claim
34 words
The coating composition of to claim 1 characterized in that one of the ester diols is formed up from a cycloaliphatic and/or aromatic dicarboxylic acid containing 8 to 10 carbon atoms and 2,2-dimethyl propane-1,3-diol.
Claim 6
Dependent Claim
35 words
The coating composition of claim 1 characterized in that the molar ratio of the hydroxyl groups of the ester diol mixture to the reactive groups of the curing agent is approximately between 0.7 and 1.5.
Claim 7
Dependent Claim
31 words
The coating composition of claim 1 characterized in that the amount of pigment in the coating composition is at least 10% by weight, based on the total amount of ester diol.
Claim 8
Dependent Claim
51 words
The coating composition of claim 1 characterized in that said curing agent for the binder is a methylol melamine containing 4 to 6 methylol groups per molecule of melamine, at least 3 of said methylol groups being etherified with an alcohol selected from the group consisting of methanol, ethanol, and butanol.
Claim 9
Dependent Claim
39 words
The coating composition of claim 1 characterized in that said curing agent for the binder is an N-methylol group- and/or N-methylol ether group-containing amino resin formed by reacting an aldehyde with a compound containing amino groups or amido groups.
References Cited (Backward Citations)
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US3819757A
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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) | 1984-07-20 | 1985-01-19 | 1985-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-20 | 1989-01-19 | 1989-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-20 | 1993-01-19 | 1993-07-21 | $7700.00 | Window Closed / Lapsed |