Abstract: A method for obtaining a plant, in particular a cultivated lettuce plant (L. sativa), with a lasting resistance to a pathogen, in particular Bremia lactucae, comprised of providing one or more specific DNA markers linked to one or more resistance genes, determining the presence of one or more resistance genes in a plant using these DNA markers, subsequently crossing a first plant comprising one or more resistance genes with a second plant comprising one or more resistance genes, and selecting from the progeny a plant in which one or more resistance genes are present by using the DNA markers. The invention further relates to the plants obtained with this method, seeds and progeny of these plants, as well as progeny thereof.

Abstract: The present invention relates to a filler composition comprising A) at least one hydroxy group-containing polyacrylate comprising 40-70 wt. % aromatic vinyl monomers and/or methyl methacrylate, 25-40 wt. % hydroxy-functional (meth)acrylic monomers, 0-20 wt. % (meth)acrylic monomers having at least 2 carbon atoms in the alkyl group, and 0.5-2.5 wt. % (meth)acrylic acid, wherein the hydroxy group-containing polyacrylate has a hydroxy value of between 100 and 160 mg KOH/g solid resin, an acid value between 5 and 20 mg KOH/g solid resin, a Mw higher than 15,000 and a Tg between 25 and 100° C., B) at least one polyisocyanate compound, and C) at least one pigment, the filler composition having a pigment volume concentration ranging from 40 to 80 % on solids. The filler composition of the present invention may be used for sanding and non-sanding applications, cured with a large variety of polyisocyanates, and covered with conventional top coats.

Abstract: A process is disclosed for coating a substrate with a radiation curble coating composition, characterized in that the composition comprises (A) an at least one isocyanate group-containing adduct of (a) an acrylic or methacrylic hydroxy ester with 5 to 20 carbon atoms and (b) a polyisocyanate with 4 to 40 carbon atoms and with 2 to 4 isocyanate groups per molecule, (B) a polyfunctional hydroxy compound having a molecular weight of 178 to 12,000 and a hydroxyl content of 0.5 to 30% by weight in an amount of 0.5 to 1.5 equivalents of hydroxy per equivalent of isocyanate of component A, and (C) a photoinitiator in an amount of 0.1 to 10% by weight of component A. The curing takes place in a first stage by radiation having a wavelength of 90 to 600 nm and in a second stage by reaction of the isocyanate groups of component A with water vapor and the hydroxyl groups of the polyfunctional hydroxy compound.