Patents Assigned to BASF Colors & Effects GmbH
-
Publication number: 20220356171Abstract: An isoindoline derivative of formula wherein X is N, C—CN or C—COR2; Y is a radical having an acidic group or a basic group; R1 is independently from one another halogen or C1-C4-alkyl, said alkyl is unsubstituted or substituted with halogen; R2 is C1-C4-alkyl, said alkyl is unsubstituted or substituted with halogen; and n is 0, 1, 2, 3 or 4, with the proviso that Y does not include an acidic group if X is C—CN or C—COR2, and compositions containing the same are provided. The isoindoline derivative and the pigment composition are suitable, for example, for coloring high molecular mass organic material, especially paints, printing inks, resist formulations for color filter applications, electrophotographic toners, cosmetics, plastics, films or fibers.Type: ApplicationFiled: September 30, 2020Publication date: November 10, 2022Applicant: BASF COLORS & EFFECTS GMBHInventors: Thomas RUCH, Patrick HOLZHUETER, Gerardus DEKEYZER, Roman LENZ
-
Patent number: 11292917Abstract: A golden effect pigment comprising an optionally passivated platelet-shaped metallic substrate and an iron oxide layer, wherein the effect pigment has a hue angle h15 of 67°?h15?78° and a chroma C*15 of ?90 is provided. Further, a golden effect pigment comprising an optionally passivated platelet-shaped metallic substrate and an iron oxide layer, wherein the effect pigment has a hue angle h15 of 67°?h15?78° and a chroma C*45 of ?50 is provided. The golden effect pigments are highly chromatic and suitable for coloring a coating composition such as a paint, a printing ink, an ink, a varnish, plastics, a fiber, a film or a cosmetic preparation, preferably an automotive, an architectural or an industrial coating composition.Type: GrantFiled: September 19, 2018Date of Patent: April 5, 2022Assignee: BASF Colors & Effects GmbHInventors: Aron Wosylus, Heinrich Woelk, Raimund Schmid, Stefan Wrobel
-
Patent number: 11084951Abstract: A process for preparing an aqueous dispersion of pigment particles is described. The pigment particle contains a pigment and an aminoplast resin which surrounds or embeds the pigment. The process includes (i) a step of subjecting an aqueous suspension of a pigment in the form of coarse particles to milling so that the coarse particles are comminuted in the presence of a polymeric dispersant to a particle diameter d(v 0.9) of below 1500 nm, as determined by laser diffraction; and (ii) a step of polycondensation of an aminoplast pre-condensate in the aqueous suspension of the comminuted particles of the pigment obtained in step (i) or during the milling of step (i). The polycondensation is performed in the presence of an acid catalyst at pH of below 5.5. The aqueous dispersion obtained by the process and the use of the aqueous dispersion for tinting waterborne liquid coating composition are also described.Type: GrantFiled: April 20, 2018Date of Patent: August 10, 2021Assignee: BASF Colors & Effects GmbHInventors: Marion Winkelmann, Yannick Fuchs, Murat Cetinkaya, Aaron Wagner, Paul Brown, Steffen Onclin, Christof Kujat
-
Publication number: 20200239698Abstract: A golden effect pigment comprising an optionally passivated platelet-shaped metallic substrate and an iron oxide layer, wherein the effect pigment has a hue angle h15 of 67°?h15?78° and a chroma C*15 of ?90 is provided. Further, a golden effect pigment comprising an optionally passivated platelet-shaped metallic substrate and an iron oxide layer, wherein the effect pigment has a hue angle h15 of 67°?h15?78° and a chroma C*45 of ?50 is provided.Type: ApplicationFiled: September 19, 2018Publication date: July 30, 2020Applicant: BASF Colors & Effects GmbHInventors: Aron WOSYLUS, Heinrich WOELK, Raimund SCHMID, Stefan WROBEL
-
Publication number: 20200123405Abstract: A process for preparing an aqueous dispersion of pigment particles is described. The pigment particle contains a pigment and an aminoplast resin which surrounds or embeds the pigment. The process includes (i) a step of subjecting an aqueous suspension of a pigment in the form of coarse particles to milling so that the coarse particles are comminuted in the presence of a polymeric dispersant to a particle diameter d(v 0.9) of below 1500 nm, as determined by laser diffraction; and (ii) a step of polycondensation of an aminoplast pre-condensate in the aqueous suspension of the comminuted particles of the pigment obtained in step (i) or during the milling of step (i). The polycondensation is performed in the presence of an acid catalyst at pH of below 5.5. The aqueous dispersion obtained by the process and the use of the aqueous dispersion for tinting waterborne liquid coating composition are also described.Type: ApplicationFiled: April 20, 2018Publication date: April 23, 2020Applicant: BASF Colors & Effects GmbHInventors: Marion WINKELMANN, Yannick FUCHS, Murat CETINKAYA, Aaron WAGNER, Paul BROWN, Steffen ONCLIN, Christof KUJAT