US4221891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of imidazolidinedione-based triepoxides and coating compositions containing same
Assignee: PPG Industries Inc
•
Filing: 1979-05-21
•
Granted: 1980-09-09
•
Expires: 1999-05-21
Abstract
Abstract Esters of imidazolidinedione-based triepoxides are especially useful in coating compositions having a low organic solvent content. The esters have the formula: ##STR1## wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, one X is hydrogen, one Y is hydrogen, one Z is hydrogen and the other X, Y and Z are ##STR2## where the R" groups are independently hydrocarbon groups having from 1 to 17 carbon atoms.
Inventors
- 👤 J. Alden Erikson
- 👤 Ronald J. Lewarchik
- 👤 William J. Birkmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:29
CPC Classifications
C; C09; C09D; C09D161/00; C09D161/04; C09D161/06; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3819; C08G18/3842; C08G18/3848; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C09D161/20
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
117 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 an imidazolidinedione-based triepoxide having the formula: ##STR8## wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, one X is hydrogen, one Y is hydrogen, one Z is hydrogen and the other X, Y and Z are ##STR9## groups where the R" groups are independently hydrocarbon groups having from 1 to 17 carbon atoms; and (b) from about 5 percent to about 80 percent of a crosslinking agent selected from the group consisting of the aminoplasts, isocyanates, blocked isocyanates, phenoplasts and mixtures thereof.
Claim 2
Dependent Claim
117 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 an imidazolidinedione-based triepoxide having the formula: ##STR8## wherein R and R' are independently hydrogen or hydrocarbon groups having from 1 to 8 carbon atoms, one X is hydrogen, one Y is hydrogen, one Z is hydrogen and the other X, Y and Z are ##STR9## groups where the R" groups are independently hydrocarbon groups having from 1 to 17 carbon atoms; and (b) from about 5 percent to about 80 percent of a crosslinking agent selected from the group consisting of the aminoplasts, isocyanates, blocked isocyanates, phenoplasts and mixtures thereof.
Claim 3
Dependent Claim
12 words
The coating composition of claim 1 wherein R and R' are hydrogen.
Claim 4
Dependent Claim
13 words
The coating composition of claim 1 wherein R and R' are alkyl groups.
Claim 5
Dependent Claim
17 words
The coating composition of claim 3 wherein the alkyl groups have from 1 to 5 carbon atoms.
Claim 6
Dependent Claim
19 words
The coating composition of claim 4 wherein the R and R' groups are joined to form a cycloalkyl group.
Claim 7
Dependent Claim
16 words
The coating composition of claim 1 wherein R is hydrogen and R' is an alkyl group.
Claim 8
Dependent Claim
16 words
The coating composition of claims 2, 3 or 6 wherein the R" groups are alkyl groups.
Claim 9
Dependent Claim
18 words
The coating composition of claim 7 wherein the R" alkyl groups have from 7 to 17 carbon atoms.
Claim 10
Dependent Claim
23 words
The coating composition of claims 2, 3 or 6 wherein the R" groups are alkenyl groups having from 4 to 17 carbon atoms.
Claim 11
Dependent Claim
25 words
The coating composition 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
13 words
The coating composition of claim 8 wherein the crosslinking agent is an aminoplast.
Claim 13
Dependent Claim
14 words
The coating composition of claim 8 wherein the crosslinking agent is a blocked isocyanate.
Claim 14
Dependent Claim
36 words
The coating composition of claim 11 wherein the composition consists essentially of from about 10 percent to about 50 percent of the ester and from about 20 percent to about 60 percent of the crosslinking agent.
References Cited (Backward Citations)
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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) | 1983-09-09 | 1984-03-10 | 1984-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-09 | 1988-03-10 | 1988-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-09 | 1992-03-10 | 1992-09-09 | $7700.00 | Window Closed / Lapsed |