Abstract: A method for producing a one-component sealing and coating compound with a polyurethane base. The method provides a simpler means of production as well as guarantees improved storage stability of the compounds produced, and comprises the following steps: agitating a mixture of poly components and one diisocyanate component to obtain an isocyanate prepolymer with a residual content of monomeric diisocyanate of >2 wt per ct; dispersing pigments and inorganic fillers in the mixture and adding a solvent whilst agitating, the residual content of monomeric diisocyanate reacting with the moisture provided by the fillers so as to obtain a H2O content of <0.01 wt per ct in the reaction mixture; adding a H2O— reactive latent hardener and optionally, at least one catalyst, and airtight packing of the resulting sealing and coating compound.

Abstract: The invention relates to a method for producing one-component sealing and coating compounds with a polyurethane base The inventive method provides a simpler means of production as well as guaranteeing improved storage stability of the compounds produced, and comprises the following steps: agitating a mixture of polyol components and one diisocyanate component to obtain an isocyanate prepolymer with a residual content of monomeric diisocyanate of 2 wt per ct; dispersing pigments and inorganic fillers in the mixture and adding a solvent whilst agitating, the residual content of monomeric diisocyanate reacting with the moisture provided by the fillers so as to obtain an H 2 O content of <0.01 wt per ct in the reaction mixture; adding an H 2 O-reactive latent hardener and optionally, at least one catalyst, and airtight packing of the resulting sealing and coating compound.

Abstract: The invention describes an electrophotographic recording material made of an electrically conductive support and at least one binder-containing photoconductive layer which contains (1) a perylenetetracarboxylic acid derivative as a compound which produces charge carriers and (2) a hydrazone or pyrazoline derivative as a compound which transports charges, wherein the compound which produces charge carriers is a diimide of perylenetetracarboxylic acid and the charge-transporting compound has the general formula ##STR1## in which X denotes methyl or methoxyl,n denotes zero or 1,Y denotes phenyl andZ denotes hydrogen, orY and Z together denote a grouping of the formula ##STR2## where A denotes phenyl or p-tolyl.