Concentrated aqueous solutions of cationic colorant and procedure for their preparation
The present invention provides concentrated aqueous acid solutions of the colorant having the formula: in which A(-) represents the formate, acetate or propionate anion. The solutions are prepared starting with the corresponding chloride or sulfomethylate by forming the m- or p-nitrobenzoate, dissol...
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| Main Author | |
|---|---|
| Format | Patent |
| Language | English |
| Published |
28.04.1981
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| Subjects | |
| Online Access | Get full text |
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| Abstract | The present invention provides concentrated aqueous acid solutions of the colorant having the formula: in which A(-) represents the formate, acetate or propionate anion. The solutions are prepared starting with the corresponding chloride or sulfomethylate by forming the m- or p-nitrobenzoate, dissolving said salt in formic, acetic or propionic acid and eliminating the nitrobenzoic acid which is precipitated. The solutions of the invention can be used for coloring and printing fibers containing acid groups, and particularly acrylic fibers. |
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| AbstractList | The present invention provides concentrated aqueous acid solutions of the colorant having the formula: in which A(-) represents the formate, acetate or propionate anion. The solutions are prepared starting with the corresponding chloride or sulfomethylate by forming the m- or p-nitrobenzoate, dissolving said salt in formic, acetic or propionic acid and eliminating the nitrobenzoic acid which is precipitated. The solutions of the invention can be used for coloring and printing fibers containing acid groups, and particularly acrylic fibers. |
| Author | DURANT; MARCEL |
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| Notes | Application Number: US19790094615 |
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| PublicationDate | 19810428 |
| PublicationDateYYYYMMDD | 1981-04-28 |
| PublicationDate_xml | – month: 04 year: 1981 text: 19810428 day: 28 |
| PublicationDecade | 1980 |
| PublicationYear | 1981 |
| RelatedCompanies | PRODUITS CHIMIQUES UGINE KUHLMANN |
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| Snippet | The present invention provides concentrated aqueous acid solutions of the colorant having the formula: in which A(-) represents the formate, acetate or... |
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| SubjectTerms | ADHESIVES CHEMISTRY DYES LAKES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MORDANTS NATURAL RESINS ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES PAINTS POLISHES |
| Title | Concentrated aqueous solutions of cationic colorant and procedure for their preparation |
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