Unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, and their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. acrylic acid and its salts and esters, methacrylic acid and its salts and esters, oleic, linoleic or linolenic acids, their salts and esters, undecenoic acids and their salts and esters, crotonic acid and binapacryl [iso])