US4384102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of compounds having s-triazine units and epoxide groups
Assignee: Bayer AG
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Filing: 1982-01-04
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Granted: 1983-05-17
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Expires: 2002-01-04
Abstract
Abstract Compounds having both s-triazine units and epoxide groups present are prepared by reacting an epoxide containing an isocyanate-reactive group with a triisocyanate corresponding to the formula: ##STR1## in which X is as defined herein. These reactants are used in quantities such that the equivalent ratio of isocyanate groups to isocyanate-reactive groups is maintained at less than or equal to 1 to 1. The compounds thus produced are particularly useful as reactive cross-linkers in the production of polyurethanes and polyepoxides.
Inventors
- 👤 Werner Rasshofer
- 👤 Gerhard Grogler
- 👤 Richard Kopp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:45
CPC Classifications
C; C07; C07D; C07D405/00; C07D405/02; C07D405/12; C08; C08G; C08G18/00; C08G18/003; C08G18/06; C08G18/70; C08G18/72; C08G18/80; C08G18/8003; C08G18/8054; C08G18/8058
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
83 words
A process for the production of compounds having s-triazine units and epoxide groups comprising reacting an epoxide compound containing an isocyanate-reactive group with a triisocyanate corresponding to the formula: ##STR4## wherein X represents a group obtained by removal of the more highly reactive of the isocyanate groups present in an aromatic diisocyanate having isocyanate groups of differing reactivities in an amount such that the equivalent ratio of isocyanate groups to isocyanate-reactive groups is maintained at less than or equal to 1 to 1.
Claim 2
Dependent Claim
83 words
A process for the production of compounds having s-triazine units and epoxide groups comprising reacting an epoxide compound containing an isocyanate-reactive group with a triisocyanate corresponding to the formula: ##STR4## wherein X represents a group obtained by removal of the more highly reactive of the isocyanate groups present in an aromatic diisocyanate having isocyanate groups of differing reactivities in an amount such that the equivalent ratio of isocyanate groups to isocyanate-reactive groups is maintained at less than or equal to 1 to 1.
Claim 3
Dependent Claim
16 words
The process of claim 1 wherein the epoxide compound containing isocyanate reactive groups is a 2,3-epoxy-1-alkanol.
Claim 4
Dependent Claim
15 words
The process of claim 2 wherein X denotes a 3-isocyanato-4-methylphenyl group or a 4-(2-isocyanatobenzyl)-phenyl group.
Claim 5
Dependent Claim
15 words
The process of claim 1 wherein X denotes a 3-isocyanato-4-methylphenyl group or a 4-(2-isocyanatobenzyl)-phenyl group.
Claim 6
Dependent Claim
90 words
A filler component useful in the production of polyurethanes which is a compound having s-triazine units and epoxide groups formed by reacting (a) a triisocyanate of the formula: ##STR5## wherein X denotes a group such as is obtained by the removal of the more highly reactive of the isocyanate groups from an aromatic diisocyanate having isocyanate groups of differing reactivities in the isocyanate addition reaction with an epoxide compound containing isocyanate reactive groups in a manner such that the equivalent ratio of isocyanate groups to isocyanate reactive groups is ≦1:1.
Claim 7
Dependent Claim
90 words
A filler component useful in the production of polyurethanes which is a compound having s-triazine units and epoxide groups formed by reacting (a) a triisocyanate of the formula: ##STR5## wherein X denotes a group such as is obtained by the removal of the more highly reactive of the isocyanate groups from an aromatic diisocyanate having isocyanate groups of differing reactivities in the isocyanate addition reaction with an epoxide compound containing isocyanate reactive groups in a manner such that the equivalent ratio of isocyanate groups to isocyanate reactive groups is ≦1:1.
Claim 8
Dependent Claim
12 words
The filler component of claim 5 wherein the epoxide compound is 2,3-epoxy-propanol.
Claim 9
Dependent Claim
11 words
The filler component of claim 5 wherein the triisocyanate is N,N',N"-tris-(3-isocyanato-4-methyl-phenylaminocarbonyl)-melamine.
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) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |