Purified concentrated aqueous leucoindigo salt solutions

    公开(公告)号:US11384245B2

    公开(公告)日:2022-07-12

    申请号:US16637862

    申请日:2018-08-10

    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.

    PURIFIED CONCENTRATED AQUEOUS LEUCOINDIGO SALT SOLUTIONS

    公开(公告)号:US20200247999A1

    公开(公告)日:2020-08-06

    申请号:US16637862

    申请日:2018-08-10

    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.

    FLUORINE-FREE WATER-REPELLENT COMPOSITION
    49.
    发明申请

    公开(公告)号:US20170204558A1

    公开(公告)日:2017-07-20

    申请号:US15320698

    申请日:2015-07-03

    Inventor: Wolfgang KNAUP

    Abstract: Composition, comprising at least components (A) and (B) and optionally at least one of components (C) to (E):(A) polyacrylate obtained in the polymerisation of components (M1) CH2═CR3COO—R1 with (M2) CH2═CR3COO—R2 and optionally (M3) CH2═CR3—X—R4 (B) wax (C) blocked isocyanate (D) organic polysiloxane; (E) melamine resin; wherein R1 is a residue containing from 1 to 8 carbon atoms; R2 is a residue containing from 9 to 40 carbon atoms; R3═H, CH3, C2H5; X═COO, CONH R4=glycidyl or CH2(CH2)n—OR5, wherein n is an integer in the range of from 1-10 and R5 is H or a residue containing from 1 to 6 carbon atoms; and wherein the composition is based on water and/or an organic solvent and is fluorine-free.

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