Basf Aktiengesellschaft

Other

Arno B&ouml;hm

Klemens Mathauer

Georg Henning

Peter Blaschka

Sabine Kielhorn-Bayer

Harald Arms

Klaus M&uuml;llen

Takahiro Ikeda

Thorsten Clemens

Norbert Mronga

Karl Siemensmeyer

Helmut B Witteler

Peter Erk

Horst Westenfelder

Raimund Schmid

Wolfgang Schrof

Thorsten Habeck

Oliver Seeger

Friedrich-Wilhelm Raulfs

Thomas W&uuml;nsch

Torsten Freund

Wilma M Dausch

R&uuml;diger Sens

Paul Delavier

Harutyun Hanciogullari

Peter Rossmanith

Stefan Becker

Walter M&auml;chtle

Ellen Pfrommer

Monika Medelnick

Ulrike Schl&ouml;sser

Ulrike Rohr

Takanori Wakebe

Heinrich Schmeisser

Hideyuki Ichihara

The present invention relates to a process for preparing dye-comprising aqueous polymer dispersions by free-radical aqueous emulsion polymerization of ethylenically unsaturated monomers in the presence of free-radical initiators, in which at least some of the monomers are employed in the form of an oil-in-water emulsion E1 whose disperse phase comprises at least one oil-soluble dye, wherein the disperse phase of E1 is formed essentially of dye-comprising monomer droplets having a diameter <500 nm. The present invention also relates to perylene dyes of the formula III as set forth in claim 35. The present invention relates in addition to dye-comprising formulations which comprise the dye-comprising polymers of the invention and to pigmented formulations which comprise a polymer of the invention comprising optical brightener.

Method for producing aqueous polymer dispersions containing colorants

The present invention describes the use of finely divided dye-containing polymers PD in the form of an aqueous polymer dispersion or a polymer powder obtainable therefrom, the polymer matrix of which comprises at least one organic dye D in homogeneously dispersed form, as color-imparting constituent in cosmetic compositions. The present invention also describes cosmetic compositions which comprise a color-containing polymer in an amount of from 0.1 to 50% by weight, based on the total weight of the cosmetic composition, and additives customary for cosmetic compositions.

Use of finely divided dye-containing polymers PD as color-imparting constituent in cosmetic compositions

Gloss pigments comprising an absorbent low-refractive coating

The invention relates to rylene dyes of the general formula (I), wherein the variables have the following meanings: R represents hydrogen; optionally substituted C -C alkyl-C -C -cycloalkyl, aryl or hetaryl; R&prime; represents optionally substituted C -C alkyl or C -C cycloalkyl, substituted methyl; and n is 0 or 1. The invention also relates to the preparation and use of said dyes for coloring highly molecular organic and inorganic materials and to 9-amino-perylene-3,4-dicarboxylic acid imides (Va) as their intermediate products.

Thermochromic rylene dyes

A 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic diimide of the general formula VI:

1,7-Diaroxy- or 1,7-arylthio-substituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides

A 1,7-disubstituted perylene-3,4,9,10-tetracarboxylic diimide of the general formula VI

1,7-disubstituted perylene-3,4,9,10-tetracarboxylic acids, their dianhydrides and diimides

Growing community of inventors

Mannheim, Germany

Arno Böhm

Growing community of inventors

Mannheim, Germany

Arno B&ouml;hm

Arno Böhm