Abstract: This invention relates to the use of spray mist inhibitors in basic electrolysis bath processes.

Abstract: Novel graft copolymer comprising(a) 0.1 to 99.9% by weight of polyalkylene oxide-organopolysiloxane block and/or comb polymer units and(b) 99.1 to 0.1% by weight of units of polymerized perfluoroalkyl substituted allyl compounds, which graft polymers contain structural elements corresponding to the following general formula: ##STR1## wherein X denotes a hydrogen atom or a methyl group,Y and Z denote, independently of one another, a hydrogen atom or an alkyl group containing 1 to 18 carbon atomsQ denotes a divalent alkylene group with 1 to 12 carbon atoms or other divalent radicals,R.sub.f denotes a perfluorinated aliphatic, optionally branched group with 1 to 20 carbon atoms and the group may contain at most one hydrogen or chlorine atom on two carbon atoms in addition to the fluorine atoms,R.sub.Si denotes a polyalkylene oxide-organopolysiloxane block and/or comb polymer residue andR.sub.