Hair lacquer or hair setting composition containing a tetrapolymer

A hair lacquer composition or a hair setting composition comprising a hydroalcoholic carrier or an alcoholic carrier and a copolymer of 2-15 weight percent of an unsaturated acid having the formula R -- CH = CH -- (CH.sub.2 -- O -- CH.sub.2).sub.n -- COOH wherein n = 0 or 1 and when n = 0, R = CH.sub.3 and when n = 1, R = H;

• 55-89.5 weight percent of a vinyl ester having the formula ##EQU9## wherein R is CH.sub.3 or C.sub.2 H.sub.5 ;
• 8-20 weight percent of at least one branched allyl or methallyl ester having the formula ##EQU10## wherein R' represents hydrogen or CH.sub.3, R.sub.1 represents a saturated hydrocarbon chain, linear or branched, having 1-6 carbon atoms and R.sub.2 represents CH.sub.3 or CH(CH.sub.3).sub.2, with the proviso that the sum of the number of the carbon atoms in R.sub.1 +R.sub.2 is equal to or less than 7;
• and 0.5-10 weight percent of a monomer selected from the group consisting of a vinyl ether having the formula CH.sub.2 = CH -- O -- R.sub.3 wherein R.sub.3 is linear or branched alkyl having 1-12 carbon atoms, a vinyl ester having a fatty chain and having the formula ##EQU11## wherein R.sub.4 is linear alkyl having 7-11 carbon atoms and a linear allyl or methallyl ester having the formula ##EQU12## wherein R' is hydrogen or CH.sub.3 and R.sub.5 is linear alkyl having 1-11 carbon atoms, said copolymer being present in an amount of about 1-4 weight percent of said composition.