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公开(公告)号：US20200172734A1
公开(公告)日：2020-06-04
申请号：US16637886
申请日：2018-08-10
申请人： Archroma IP GmbH
发明人： Erwin Lucic , Jorg Hubner , David Hyett , Michele Catherine Christianne Janssen , Karin Hendrika Maria Bessembinder , Pierre L. Woestenborghs , Marinus Petrus Wilhelmus Maria Rijkers
摘要： Aqueous leucoindigo solution comprising an aromatic amine in the form of aniline or aniline and N-methylaniline, wherein said leucoindigo is in the form of an alkali metal salt;wherein the concentration of the aromatic amine is below 40 ppm determined according to ISO 14362-1:2017(E); and wherein the concentration of the leucoindigo salt is in a concentration range of from 15 to 45% by weight based on the total weight of the solution, and wherein the solution is stable at a temperature of 23° C.; or wherein the concentration of the leucoindigo salt is in a concentration range of from 45 to 65% by weight based on the total weight of the solution, and wherein the solution is stable at a temperature of 60° C.
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公开(公告)号：US11299633B2
公开(公告)日：2022-04-12
申请号：US16637874
申请日：2018-08-10
申请人： Archroma IP GmbH
发明人： Erwin Lucic , Jorg Hubner , David Hyett , Michele Catherine Christianne Janssen , Karin Hendrika Maria Bessembinder , Pierre L. Woestenborghs , Marinus Petrus Wilhelmus Maria Rijkers
摘要： Stable aqueous leucoindigo solution comprising an aromatic amine in the form of aniline or aniline and N-methylaniline, wherein said leucoindigo is in the form of an alkali metal salt;
wherein the concentration of the aromatic amine is below 40 ppm determined according to ISO 14362-1:2017(E); and
wherein the concentration of the leucoindigo salt is in a concentration range of from 10 to 45% by weight based on the total weight of the solution, and wherein the stability of the solution is measured at a temperature of 23° C.; or
wherein the concentration of the leucoindigo salt is in a concentration range of from 45 to 65% by weight based on the total weight of the solution, and wherein the stability of the solution is measured at a temperature of 60° C.-
公开(公告)号：US20200216674A1
公开(公告)日：2020-07-09
申请号：US16637889
申请日：2018-08-10
申请人： Archroma IP GmbH
发明人： Erwin Lucic , Jorg Hubner , David Hyett , Michele Catherine Christianne Janssen , Karin Hendrika Maria Bessembinder , Pierre L. Woestenborghs , Marinus Petrus Wilhelmus Maria Rijkers
摘要： Method of making an aqueous aniline-free or aniline-free and N-methylaniline-free leucoindigo solution from an aqueous leucoindigo solution comprising aniline or aniline and N-methylaniline, the concentration of aniline or aniline and N-methylaniline being determined according to ISO 14362-1:2017(E), wherein said leucoindigo is in the form of an alkali metal salt, the method comprising at least steps (A) to (C): (A) providing a liquid stream comprising said aqueous leucoindigo solution comprising said amine(s); (B) providing a purification stream; (C) bringing into contact said liquid stream with said purification stream.
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公开(公告)号：US20210009810A1
公开(公告)日：2021-01-14
申请号：US16637874
申请日：2018-08-10
申请人： Archroma IP GmbH
发明人： Erwin Lucic , Jorg Hubner , David Hyett , Michele Catherine Christianne Janssen , Karin Hendrika Maria Bessembinder , Pierre L. Woestenborghs , Marinus Petrus Wilhelmus Maria Rijkers
摘要： Stable aqueous leucoindigo solution comprising an aromatic amine in the form of aniline or aniline and N-methylaniline, wherein said leucoindigo is in the form of an alkali metal salt;
wherein the concentration of the aromatic amine is below 40 ppm determined according to ISO 14362-1:2017(E); and wherein the concentration of the leucoindigo salt is in a concentration range of from 10 to 45% by weight based on the total weight of the solution, and wherein the stability of the solution is measured at a temperature of 23° C.; or wherein the concentration of the leucoindigo salt is in a concentration range of from 45 to 65% by weight based on the total weight of the solution, and wherein the stability of the solution is measured at a temperature of 60° C.
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