US4205156A
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Novel imidazole-isocyanuric acid adducts and utilization thereof
Assignee: Shikoku Chemicals Corp
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Filing: 1979-01-22
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Granted: 1980-05-27
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Expires: 1999-01-22
Abstract
Abstract An imidazole-isocyanuric acid adduct having the following general formula is disclosed: ##STR1## wherein R 1 is a member selected from the group consisting of a hydrogen atom, a β-cyanoethyl group and a β-[3,5-diamino-S-triazinyl-(1)]-ethyl group, R 2 stands for a monovalent hydrocarbon group having up to 17 carbon atoms, R 3 is a member selected from the group consisting of a hydrogen atom and an alkyl group having up to 4 carbon atoms, with the proviso that when R 1 is a hydrogen atom, R 2 is a methyl or phenyl group and R 3 is a hydrogen atom and when R 1 is a β-cyanoethyl group, R 2 is a phenyl group and R 3 is a hydrogen atom, and n is a number of from 0 to 2. This adduct has peculiar characteristics not possessed by ordinary salts. Namely, the adduct is stable in water, and it decomposes in a solvent or under heating. The adduct is valuable as a curing agent for epoxy resins, and it can be utilized for purification of imidazoles.
Inventors
- 👤 Natsuo Sawa
- 👤 Tadao Nomoto
- 👤 Keiko Iuchi
- 👤 Toshihiro Suzuki
- 👤 Shunichi Kawata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:11
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/30; C07D251/32; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5046; C08G59/5053; C08G59/508; C08G59/5086; C08G59/68; C08G59/686
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
161 words
An epoxy resin composition comprising (a) 100 parts by weight of an epoxy resin having more than 1 epoxy group in one molecule and (b) 1 to 10 parts by weight of a compound represented by the following general formula: ##STR22## wherein R 1 is a member selected from the group consisting of a hydrogen atom, a β-cyanoethyl group, a benzyl group and a β-[3,5-diamino-S-triazinyl-(1)]-ethyl group, R 2 stands for a monovalent hydrocarbon group having up to 17 carbon atoms, R 3 is a member selected from the group consisting of a hydrogen atom and an alkyl group having up to 4 carbon atoms, with the proviso that when R 1 is a hydrogen atom, R 2 is a methyl or phenyl group and R 3 is a hydrogen atom and when R 1 is a β-cyanoethyl group, R 2 is a phenyl group and R 3 is a hydrogen atom, and n is a number of from 0 to 2.
Claim 2
Dependent Claim
161 words
An epoxy resin composition comprising (a) 100 parts by weight of an epoxy resin having more than 1 epoxy group in one molecule and (b) 1 to 10 parts by weight of a compound represented by the following general formula: ##STR22## wherein R 1 is a member selected from the group consisting of a hydrogen atom, a β-cyanoethyl group, a benzyl group and a β-[3,5-diamino-S-triazinyl-(1)]-ethyl group, R 2 stands for a monovalent hydrocarbon group having up to 17 carbon atoms, R 3 is a member selected from the group consisting of a hydrogen atom and an alkyl group having up to 4 carbon atoms, with the proviso that when R 1 is a hydrogen atom, R 2 is a methyl or phenyl group and R 3 is a hydrogen atom and when R 1 is a β-cyanoethyl group, R 2 is a phenyl group and R 3 is a hydrogen atom, and n is a number of from 0 to 2.
Claim 3
Dependent Claim
172 words
A one-pack type epoxy resin composition comprising (a) 100 parts by weight of an epoxy resin having more than 1 epoxy group in one molecule, (b) 1 to 20 parts by weight of dicyandiamide and (c) 0.1 to 10 parts by weight of a compound represented by the following general formula: ##STR23## wherein R 1 is a member selected from the group consisting of a hydrogen atom, a β-cyanoethyl group, a benzyl group and a β-[3,5-diamino-S-triazinyl-(1)]-ethyl group, R 2 stands for a monovalent hydrocarbon group having up to 17 carbon atoms, R 3 is a member selected from the group consisting of a hydrogen atom and an alkyl group having up to 4 carbon atoms, with the proviso that when R 1 is a hydrogen atom, R 2 is a methyl or phenyl group and R 3 is a hydrogen atom and when R 1 is a β-cyanoethyl group, R 2 is a phenyl group and R 3 is a hydrogen atom, and n is a number of from 0 to 2.
Claim 4
Dependent Claim
172 words
A one-pack type epoxy resin composition comprising (a) 100 parts by weight of an epoxy resin having more than 1 epoxy group in one molecule, (b) 1 to 20 parts by weight of dicyandiamide and (c) 0.1 to 10 parts by weight of a compound represented by the following general formula: ##STR23## wherein R 1 is a member selected from the group consisting of a hydrogen atom, a β-cyanoethyl group, a benzyl group and a β-[3,5-diamino-S-triazinyl-(1)]-ethyl group, R 2 stands for a monovalent hydrocarbon group having up to 17 carbon atoms, R 3 is a member selected from the group consisting of a hydrogen atom and an alkyl group having up to 4 carbon atoms, with the proviso that when R 1 is a hydrogen atom, R 2 is a methyl or phenyl group and R 3 is a hydrogen atom and when R 1 is a β-cyanoethyl group, R 2 is a phenyl group and R 3 is a hydrogen atom, and n is a number of from 0 to 2.
Claim 5
Dependent Claim
34 words
An epoxy resin composition as set forth in claim 1, wherein the compound is an imidazole-isocyanuric acid adduct represented by the following formula: ##STR24## wherein n is a number of from 0 to 2.
Claim 6
Dependent Claim
33 words
An epoxy resin composition as set forth in claim 1 wherein the compound is an imidazole-isocyanuric acid adduct represented by the formula: ##STR25## wherein n is a number of from 0 to 2.
Claim 7
Dependent Claim
24 words
An epoxy resin composition as set forth in claim 1 wherein the compound is an imidazole-isocyanuric acid adduct represented by the following formula: ##STR26##
Claim 8
Dependent Claim
32 words
A composition as set forth in claim 2 wherein the compound is an imidazole-isocyanuric acid adduct represented by the following formula: ##STR27## wherein n is a number of from 0 to 2.
Claim 9
Dependent Claim
32 words
A composition as set forth in claim 2 wherein said compound is an imidazole-isocyanuric acid adduct represented by the following formula: ##STR28## wherein n is a number of from 0 to 2.
Claim 10
Dependent Claim
22 words
A composition as set forth in claim 2 wherein said compound is an imidazole-isocyanuric acid adduct represented by the following formula: ##STR29##
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) | 1983-05-27 | 1983-11-26 | 1984-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-27 | 1987-11-26 | 1988-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-27 | 1991-11-26 | 1992-05-27 | $7700.00 | Window Closed / Lapsed |