C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
6/26
C09D 15/00 (2006.01) C09D 191/00 (2006.01)
Patent
CA 1306585
Abstract of the Invention The invention relates to air-drying stains and finishing coats for woodfor exterior and interior finish, comprising the so-called nonvolatile matter, which represents an intimate mixture of modified natural oils, pigments, extenders and small proportions of varnish additives, and a low-boiling petroleum hydrocarbon, which is suitable as a solvent and is present in an amount of ? 15% by weight, based on the total amount. An air-drying stain for exterior finishes is to be provided, with whicha spotty or mottled appearance of the dried surface is avoided reliably even after a single coat of paint, This objective is accomplished by a stain, the mixture of chemically modified natural oils of which have a consistency, so that the efflux time from a DIN 53,211 4 mm viscosity cup is between 28 and 35 seconds, and the extender of which comprises a fine, cryptocrystalline, amorphous silicon dioxide, in which the proportion of particles with a particle size less than 40 µm is greater than 95%.
567303
Na
Ostermann & Scheiwe Gmbh & Co. Kg
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