Patent US4228294A successfully refreshed from Google Patents.
US4228294A
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Esters of imidazolidinedione-based diepoxides and coating compositions containing same
Assignee: PPG Industries Inc
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Filing: 1978-10-10
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Granted: 1980-10-14
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Expires: 1998-10-10
Abstract
Abstract Esters of imidazolidinedione-based diepoxides are especially useful in coating compositions having a low organic solvent content. The esters have the structure <IMAGE> +TR <IMAGE> wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, one X is hydrogen and the other X is <IMAGE> one Y is hydrogen and the other Y is <IMAGE> where the R'' groups are independently saturated hydrocarbon groups having from 1 to 17 carbon atoms or unsaturated hydrocarbon groups having from 4 to 17 carbon atoms and n is 0 or 1.
Inventors
- 👤 Ronald J. Lewarchik
- 👤 J. Alden Erikson
- 👤 William J. Birkmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:17
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C07; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/72; C07D233/76; C07D233/78; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3819; C08G18/3842; C08G18/3848; C09; C09D; C09D163/00
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
81 words
An ester of imidazolidinedione-based diepoxide having the structure: ##STR14## wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, one X is hydrogen and the other X is ##STR15## one Y is hydrogen and the other Y is ##STR16## where the R" groups are independently (a) alkyl groups having from 1 to 17 carbon atoms or (b) aryl or alkylaryl groups having from 6 to 10 carbon atoms and n is 0 or 1.
Claim 2
Dependent Claim
81 words
An ester of imidazolidinedione-based diepoxide having the structure: ##STR14## wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, one X is hydrogen and the other X is ##STR15## one Y is hydrogen and the other Y is ##STR16## where the R" groups are independently (a) alkyl groups having from 1 to 17 carbon atoms or (b) aryl or alkylaryl groups having from 6 to 10 carbon atoms and n is 0 or 1.
Claim 3
Dependent Claim
11 words
The ester of claim 1 wherein R and R' are hydrogens.
Claim 4
Dependent Claim
12 words
The ester of claim 1 wherein R and R' are alkyl groups.
Claim 5
Dependent Claim
16 words
The ester of claim 3 wherein the alkyl groups have from 1 to 5 carbon atoms.
Claim 6
Dependent Claim
16 words
The ester of claim 4 wherein R and R' are joined to form a cycloalkyl group.
Claim 7
Dependent Claim
15 words
The ester of claim 1 wherein R is hydrogen and R' is an alkyl group.
Claim 8
Dependent Claim
15 words
The ester of claim 2, 3 or 6 wherein the R" groups are alkyl groups.
Claim 9
Dependent Claim
17 words
The ester of claim 7 wherein the R" alkyl groups have from 7 to 17 carbon atoms.
Claim 10
Dependent Claim
13 words
The ester of claim 8 wherein the alkyl groups are tertiary alkyl groups.
Claim 11
Dependent Claim
24 words
The ester of claims 2, 3 or 6 wherein the R" groups are aryl or alkylaryl groups having from 6 to 10 carbon atoms.
Claim 12
Dependent Claim
12 words
The ester of claims 2, 3 or 6 wherein n is 0.
Claim 13
Dependent Claim
12 words
The ester of claims 2, 3 or 6 wherein n is 1.
Claim 14
Dependent Claim
134 words
A coating composition containing less than about 40 percent organic solvent, consisting essentially of: (a) from about 5 percent to about 90 percent of an ester of imidazolidinedione-based diepoxide having the structure: ##STR17## wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, one X is hydrogen and the other X is ##STR18## one Y is hydrogen and the other Y is ##STR19## where the R" groups are independently (a) alkyl groups having from 1 to 17 carbon atoms or (b) aryl or alkylaryl groups having from 6 to 10 carbon atoms and n is 0 or 1; and (b) from about 5 percent to about 80 percent of a crosslinking agent selected from the group consisting of aminoplasts, isocyanates, blocked isocyanates, phenoplasts, beta-hydroxyalkylamides and mixtures thereof.
Claim 15
Dependent Claim
134 words
A coating composition containing less than about 40 percent organic solvent, consisting essentially of: (a) from about 5 percent to about 90 percent of an ester of imidazolidinedione-based diepoxide having the structure: ##STR17## wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, one X is hydrogen and the other X is ##STR18## one Y is hydrogen and the other Y is ##STR19## where the R" groups are independently (a) alkyl groups having from 1 to 17 carbon atoms or (b) aryl or alkylaryl groups having from 6 to 10 carbon atoms and n is 0 or 1; and (b) from about 5 percent to about 80 percent of a crosslinking agent selected from the group consisting of aminoplasts, isocyanates, blocked isocyanates, phenoplasts, beta-hydroxyalkylamides and mixtures thereof.
Claim 16
Dependent Claim
16 words
The composition of claim 13 wherein the composition contains less than about 30 percent organic solvent.
Claim 17
Dependent Claim
11 words
The composition of claim 13 wherein R and R' are hydrogens.
Claim 18
Dependent Claim
12 words
The composition of claim 13 wherein R and R' are alkyl groups.
Claim 19
Dependent Claim
16 words
The composition of claim 16 wherein the alkyl groups have from 1 to 5 carbon atoms.
Claim 20
Dependent Claim
16 words
The composition of claim 17 wherein the alkyl groups are joined to form a cycloalkyl group.
Claim 21
Dependent Claim
15 words
The composition of claim 13 wherein R is hydrogen and R' is an alkyl group.
Claim 22
Dependent Claim
15 words
The composition of claim 15, 16 or 19 wherein the R" groups are alkyl groups.
Claim 23
Dependent Claim
17 words
The composition of claim 20 wherein the R" alkyl groups have from 7 to 17 carbon atoms.
Claim 24
Dependent Claim
24 words
The composition of claims 15, 16 or 19 wherein the R" groups are aryl or alkylaryl groups having from 6 to 10 carbon atoms.
Claim 25
Dependent Claim
12 words
The composition of claim 15, 16 or 19 wherein n is 0.
Claim 26
Dependent Claim
12 words
The composition of claims 15, 16 or 19 wherein n is 1.
Claim 27
Dependent Claim
12 words
The composition of claim 13 wherein the crosslinking agent is an aminoplast.
Claim 28
Dependent Claim
13 words
The composition of claim 13 wherein the crosslinking agent is a blocked isocyanate.
Claim 29
Dependent Claim
37 words
The composition of claims 13, 25 or 26 wherein the ester represents from about 10 percent to 50 percent of the composition and the crosslinking agent from about 20 percent to about 60 percent of the composition.
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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) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |