Abstract: A method for producing catalysts for gas phase oxidation of saturated or unsaturated hydrocarbons to maleic anhydride is disclosed comprising: (a) mixing a vanadium compound containing pentavalent vanadium with orthophosphoric acid in an alcohol from the series of monohydric lower aliphatic alcohols having 2-8 C-atoms in the optional presence of promoters, and a reducing agent combination of H.sub.3 PO.sub.3 +alcohol wherein the sum of H.sub.3 PO.sub.3 and H.sub.3 PO.sub.4 is so controlled that an atomic ratio of P to V of 1.0 to 1.2 is attained and wherein said H.sub.3 PO.sub.3 is used in such sub-stoichiometric amounts that it is sufficient to reduce the vanadium to an oxidation state only of 4.2 to 4.4, and then said reducing agent combination is used to further reduce the vanadium to an oxidation state between 3.9 to 4.

Abstract: Coatings having a matt finish are made by applying a powder varnish composition to a substrate and thereafter reacting the varnish at a temperature of 100.degree. to 240.degree. C to form the matt finish coating. The powder varnish composition is a finely divided, particulate mixture ofI. a 1,2-epoxy compound having a melting point greater than 40.degree. C and containing at least one 1,2-epoxy group; andIi. a salt of a polycarboxylic acid (such as pyromellite acid) containing three or more carboxyl groups and a cyclic amidine (such as 2-phenylimidazoline).

Abstract: Coatings having a matt finish are made by applying a powder varnish composition to a substrate and thereafter reacting the varnish at a temperature of 100.degree. to 240.degree.C to form the matt finish coating. The powder varnish composition is a finely divided, particulate mixture ofI. a 1,2-epoxy compound having a melting point greater than 40.degree.C and containing at least one 1,2-epoxy group; andIi. a salt of a polycarboxylic acid (such as pyromellitic acid) containing three or more carboxyl groups and a cyclic amidine (such as 2-phenylimidazoline).