fatty acids described above for example oleic acid oleyl ester may be used as the carboxylic acid the fatty alcohols may also be etherified more especially with polyhydric alcohols for example alkyl polyglycosides dimer diol ethers the ratio by weight of the styrene polymer to the plasticizing fatty compound is 100 0 5 to 50 preferably 100 2 5 to 40 and above all 100 7 5 to 15 besides these two key components the binders according to the invention may contain other ingredients for example antioxidants pigments fillers plasticizers preservatives defoamers film forming agents fragrances water adhesion promoters solvents dyes flameproofing agents flow controllers resins tackifiers viscosity regulators dispersion aids for example sodium or ammonium salt of polyacrylic acid emulsifiers for example alkyl ether phosphates and sulfosuccinates and thickeners for example mc heg suitable resins are polyisobutylene or polybutylene for example hyvis 10 a product of bp pine resins and derivatives esters hydrogenated products abietyl alcohol acrylate resins phenolic resins terpene phenol resins polyterpenes epoxy resins hydrocarbon resins indene coumarone resins and melamine resins examples of suitable antioxidants are phosphorous acid and salts thereof hypophosphorous acid and salts thereof ascorbic acid and derivatives thereof especially ascorbyl palmitate tocopherol and derivatives thereof mixtures of ascorbic acid derivatives and tocopherol derivatives sterically hindered phenol derivatives especially bha tert butyl4 methoxyphenol and bht 2 6ditert butyl4 methylphenol gallic acid and derivatives thereof especially alkyl gallates aromatic amines for example diphenylamine naphthylamine and 1 4 phenylenediamine dihydroquinoline organic sulfides and polysulfides dithiocarbamates and mercaptobenzimidazole examples of viscosity regulators are cellulose ethers hydrogenated castor oil highly dispersed silicas and ionic and nonionic thickeners such as for example polyacrylic acid and associated thickeners suitable fillers and pigments are chalk heavy spar kaolin carbon black gypsum.