Th. Goldschmidt Ag

Werner Schafer

Manfred Scheiba

Jurgen Fock

Eckehard Schamberg

Dietmar Schedlitzki

Heribert Seyffert

Polymers, which have polyurethane and/or polyurea groups and contain finely divided fillers, are synthesized by reacting compounds, which contain at least two hydroxyl and/or amino groups, with at least difunctional isocyanates, optionally in the presence of catalysts, and mixing with suitable fillers. The compounds, containing hydroxyl and/or amino groups, and the isocyanates, are separately mixed intimately with finely divided solids so that flowable powders are obtained. The powders obtained are mixed in a stoichiometrically required amount, and the powder mixture is subjected to the action of shear forces at, if necessary, a higher temperature. The mixture of solids obtained has a shelf life of several days or weeks without reaction between the reactive compounds contained therein.

Method for the synthesis of polymers, which have polyurethane and/or

A method for the decorative coating of sheet-like materials, particularly laminated plastics and wood-derived panels is disclosed to achieve a marbled decor effect by pressing a support sheet, impregnated with a curable aminoplast resin and coateed with a thermoplastic or duroplastic synthetic resin, on the substrate to be coated at the melting or curing temperatures of the resins, in which

Method for obtaining marbleized coatings on sheet-like materials and

A method is disclsed for surface improving sheet-like substrates to impart them with a marbleized effect. A transfer sheet is pressed on the substrate at elevated temperatures. The transfer sheet is comprised of superimposed layers of synthetic resin. The resin layer closest to the backing of the transfer sheet is devoid of pigments, while the resin layer adjacent the pigment free layer comprises 2 to 40% by weight, calculated on the amount of resin, of a flake-like pigment. The pressing of the transfer sheet against the substrate is carried out with a press tool devoid of surface pattern and having a generally flat press surface.

Method for the decorative surface coating of flat substrates

A backing sheet for the weathering-resistant coating of thin, plane backings in continuous presses without recooling comprising

Backing sheet for the weathering-proof coating of thin, plane backing in

This invention relates to an improvement in a substrate web coated with a thermosetting coating resin and optionally impregnated with an aminoplast resin, in particular a web of paper, for the surface finishing of woodwork panels or laminates, the improvement that the coating resin is a modified polyester resin, composed of (a) 60 to 95% by weight of a hardenable polyester resin, (b) 1 to 15% by weight of a cross-linking agent for the polyester resin, (c) 5 to 40% by weight of a thermoplastic containing predominantly linear, high-molecular weight, reactive groups, (d) 1 to 15% by weight of a monomer with at least one polymerizable double bond and at least one group which reacts with the reactive group of the thermoplastic, and (e) a hardening catalyst, and optionally dyes, pigments and/or fillers. The invention also relates to a process for preparing a synthetic resin coated substrate web.

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Essen, Germany

Werner Schafer