Abstract: The present invention relates to an N-(4-((4-(3-phenylureido)phenyl)sulfonyl)phenyl)benzenesulfonamide in the polymorphic form ?18.9, characterised by an x-ray powder diffractogram having the Bragg angles (2?/CuK?) 10.9, 11.7, 14.6, 15.0, 15.8, 16.6, 17.6, 18.9, 19.4, 20.9, 21.2, 22.0, 23.3, 24.4, 24.7, 26.1, 27.4, 29.4, 34.2, or in the polymorphic form ?21.2, characterised by an x-ray powder diffractogram having the Bragg angles (2?/CuK?) 8.7, 9.8, 10.8, 13.2, 13.9, 14.9, 15.2, 16.0, 17.4, 17.7, 18.7, 20.4, 21.2, 21.6, 22.3, 23.0, 23.3, 23.9, 24.4, 25.0, 25.8, 26.6, 28.1, 28.9, 29.4, 30.1, 30.6, 31.8, 34.5, 35.3, 35.6, 36.9, a method for production thereof, use thereof as a colour developer in a heat-sensitive recording material, and a heat-sensitive recording material comprising N-(4-((4-(3-phenylureido)phenyl)sulfonyl)phenyl)benzenesulfonamide in the polymorphic form ?18.9 or in the polymorphic form ?21.2.

Abstract: In accordance with a first aspect, the invention relates to microcapsules for use in a high demand area selected from detergents and cleaners, cosmetic products, adhesive systems, paints and dispersions, coating materials comprising a core material and a shell, wherein the shell consists of at least a first and a second layer whose chemical compositions differ, and wherein the shell has a biodegradability measured according to OECD 301 F of at least 40%. The invention further relates to a product comprising microcapsules, wherein the product is selected from the group consisting of an adhesive system; a cosmetic product; a pharmaceutical product; a coating material, in particular a coated paper; a heat storage coating, a self-healing coating or a corrosion coating; and a coating of functional packaging materials.