Abstract:
Aqueous polyurethane-polyurea dispersions, stabilized with respect to thermal yellowing, which have excellent mechanical properties and also to their preparation and use.
Abstract:
The present invention relates to the production of aminodiphenyl-amines resulting in good yields and high purity levels when aromatic amines are reacted with nitrohalobenzenes in the presence of a palladium catalyst and a base and the product thus obtained is subsequently hydrogenated with hydrogen.
Abstract:
Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminoplast resin component, and a polyacrylic polyol component.
Abstract:
The invention relates to a process for the preparation of nitrodiphenylamines by reaction of nitrohalogenobenzenes with aromatic amines in the presence of a palladium catalyst and a base, the base being ground and/or dried before its use.