公开(公告)号：US20210009810A1

公开(公告)日：2021-01-14

申请号：US16637874

申请日：2018-08-10

Applicant: Archroma IP GmbH

Inventor： Erwin Lucic ,  Jorg Hubner ,  David Hyett ,  Michele Catherine Christianne Janssen ,  Karin Hendrika Maria Bessembinder ,  Pierre L. Woestenborghs ,  Marinus Petrus Wilhelmus Maria Rijkers

IPC: C09B67/54 ,  C09B7/02 ,  B01D3/14

Abstract: 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

Applicant: Archroma IP GmbH

Inventor： Erwin Lucic ,  Jorg Hubner ,  David Hyett ,  Michele Catherine Christianne Janssen ,  Karin Hendrika Maria Bessembinder ,  Pierre L. Woestenborghs ,  Marinus Petrus Wilhelmus Maria Rijkers

IPC: C09B67/54 ,  C09B67/44 ,  D06P1/22 ,  C09B7/02

Abstract: 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.

公开(公告)号：US20200172734A1

公开(公告)日：2020-06-04

申请号：US16637886

申请日：2018-08-10

Applicant: Archroma IP GmbH

Inventor： Erwin Lucic ,  Jorg Hubner ,  David Hyett ,  Michele Catherine Christianne Janssen ,  Karin Hendrika Maria Bessembinder ,  Pierre L. Woestenborghs ,  Marinus Petrus Wilhelmus Maria Rijkers

IPC: C09B7/02 ,  D06P1/22 ,  C09B67/54

Abstract: 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.

公开(公告)号：US11299633B2

公开(公告)日：2022-04-12

申请号：US16637874

申请日：2018-08-10

Applicant: Archroma IP GmbH

Inventor： Erwin Lucic ,  Jorg Hubner ,  David Hyett ,  Michele Catherine Christianne Janssen ,  Karin Hendrika Maria Bessembinder ,  Pierre L. Woestenborghs ,  Marinus Petrus Wilhelmus Maria Rijkers

IPC: C09B7/02 ,  C09B67/54 ,  D06P1/22 ,  C09B67/44 ,  B01D3/14

Abstract: 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：US11384245B2

公开(公告)日：2022-07-12

申请号：US16637862

申请日：2018-08-10

Applicant: Archroma IP GmbH

Inventor： Erwin Lucic ,  Jorg Hubner

IPC: C09B7/00 ,  C09B7/02 ,  C09B67/54 ,  D06P1/22 ,  C09B67/44 ,  B01D3/14

Abstract: Aqueous leucoindigo solution comprising an aromatic amine, in particular aniline or aniline and N-methylaniline, wherein the concentration of the aromatic amine is below 200 ppm, wherein the leucoindigo salt in the solution is in the form of a mixed sodium and potassium salt, wherein the molar ratio of sodium to potassium is in the range of from above 3:1 to 10:1, preferably wherein the concentration of the salt is in the range of from above 25 to 45% by weight, based on the total weight of the solution.

公开(公告)号：US20200247999A1

公开(公告)日：2020-08-06

申请号：US16637862

申请日：2018-08-10

Applicant: Archroma IP GmbH

Inventor： Erwin Lucic ,  Jorg Hubner

IPC: C09B67/44 ,  C09B67/54 ,  C09B7/02

Abstract: Aqueous leucoindigo solution comprising an aromatic amine, in particular aniline or aniline and N-methylaniline, wherein the concentration of the aromatic amine is below 200 ppm, wherein the leucoindigo salt in the solution is in the form of a mixed sodium and potassium salt, wherein the molar ratio of sodium to potassium is in the range of from above 3:1 to 10:1, preferably wherein the concentration of the salt is in the range of from above 25 to 45% by weight, based on the total weight of the solution.