Amphiphile polymers based on polyester with condensed acetal groups which are liquid at room temperature and are used in detergents and cleaning agents

Amphiphilic polyesters, liquid at room temperature, having the empirical sum formula:

• (CAP)x(T)z(I)q(D)r(P)s(En)t(A)y(PG)v (I)
• wherein
• (CAP) represents end groups which cap the polymer at the end and are selected from
• a. sulphoaroyl groups,
• b. groups having the formula MO3—S—(O)u—(CH2)p—(RO)w—, in which M is a metal ion, an ammonium ion or a substituted ammonium ion, R is ethylene or mixtures of ethylene and propylene, u is 0 or 1, p is 0 or 1 and w is from 1 to 100,
• c. poly(othyethylene)monoalkylether groups, wherein the alkyl group contains 1 to 24 C atoms and the poly-oxyethylene group comprises 2 to 200 oxyethylene units,
• d. acyl and aroyl groups with 4 to 40 carbon atoms,
• e. hydroxy-acyl and hydroxy-aroyl groups with 2 to 25 carbon atoms,
• f. poly(oxyalkylene)monoalkyl phenol ethers, in which the alkyl group contains 6 to 18 carbon atoms and the poly-oxyalkylene group comprises 0 to 80 oxyalkylene units, and
• g. mixtures thereof
• and x is from 0 to 2,
• (T) is an arylen dicarbonyl group and z is from grater than 0 to 50,
• (I) is an internal anionic group and q is from 0 to 30,
• (D) is an acetalic group obtained from reacting glycerine with a compound selected from the group consisting of dialdehydes, formyl esters, acetales of dialdehydes, acetales of fonnyl esters and mixtures thereof, said acetalic group containing at least one of the following cyclic structures:
• and r is from greater than 0 to 80,
• (P) is a polyol group with at least 3 hydroxyl groups and s is from 0 to 80, with the share of the polyol being smaller 30 mol % relative to the total of the monomer units,
• (En) is a poly(oxyalkylene)oxy-group containing from 2 to 100 oxy-alkylene groups and t is from 0 to 25 and the alkyl groups contain 2 to 6 C atoms,
• (A) is a 1,n-alkylene dicarbonyl group composed of2 to 24 C atoms and y is from 0 to 15,
• (PG) is an oxypropylene oxy-group and v is from 0 to 80,
• and wherein the oligo/polyesters have molecular weights from 500 to 100,000.