Abstract: Coating compositions and processes for coating wood and wood materials are described. The compositions comprise a first component comprising at least one reactive thinner and at least one unsaturated polyester, and a second component comprising a curing catalyst. The unsaturated polyester of the first component is the reaction product of: (a) a mixture of at least one saturated aliphatic dicarboxylic acid with 6 to 10 carbon atoms and at least one ethylenically unsaturated aliphatic dicarboxylic acid selected from maleic acid, fumaric acid, itaconic acid, citraconic acid, and mixtures thereof; (b) a diol component consisting of at least one of 1,4-dimethylolcyclohexane and substituted dimethylolcyclohexanes, with up to 50 mol % monomeric or oligomeric glycol, based on total moles of the diol component; and (c) up to 10 mol % of a polyol, based on total moles of polyester reactants. The compositions and processes of the invention result in coatings with improved hardness and aged cold crack resistance.

Abstract: Opaque coatings or films having a high covering capacity produced from coating compositions containing synthetic resins, fillers, solvents, common catalysts, sensitizers, additives and auxiliary agents, characterized in that radiation permeable mixtures of coating compositions are used containing the following components:A. 14 - 20 parts by weight, preferably 15 - 18 parts by weight, photosensitized light curing condensation resins having double bond values of 0.180 to 0.450;B. 55 - 75 parts by weight, preferably 65 - 70 parts by weight, or fillers having a low covering capacity;C. 0.5 - 10 parts by weight, preferably 1 - 6 parts by weight, of film forming cellulose derivatives or mixed polymerizates of vinyl chloride with other monomers which are compatible with A and B, andD.

Abstract: Cured, opaque coatings with high hiding power are produced on a substrate from a normally transparent and radiation transmitting unsaturated polyester paste filler composition containing customary additives, curing catalysts and optionally fillers of low hiding power and non-reactive solvents and/or plasticizers wherein the filler composition has a weight ratio of unsaturated polyester to the sum of copolymerizable monomers and optionally non-reactive solvents and plasticizers of from about 10 : 12 to 10 : 40, preferably from about 10 to 15. The unsaturated polyester filler composition may further have up to 95 percent by weight of the copolymerizable monomers replaced by the non-reactive solvents and/or plasticizers. The composition may be cured by UV rays, sunlight or other ionizing radiation.

Abstract: Opaque coatings or films having a high covering capacity produced from coating compositions containing synthetic resins, fillers, solvents, common catalysts, sensitizers, additives and auxiliary agents, characterized in that radiation permeable mixtures of coating compositions are used containing the following components:A. 14 - 20 parts by weight, preferably 15 - 18 parts by weight, photosensitized light curing condensation resins having double bond values of 0.180 to 0.450;B. 55 - 75 parts by weight, preferably 65 - 70 parts by weight, of fillers having a low covering capacity;C. 0.5 - 10 parts by weight, preferably 1 - 6 parts by weight, of film forming cellulose derivatives or mixed polymerizates of vinyl chloride with other monomers which are compatible with A and D; andD.

Abstract: Opaque coatings and molded articles are produced from normally transparent copolymer compositions of unsaturated polyesters and monomers therefore by using from about 3 percent to less than 45 percent by weight of unsaturated polyesters based on the total weight of the composition.