Abstract: A fluorine-free polyalkoxysiloxane, (a) having a degree of branching DB?0.4 calculated by: DB=(2Q4+Q3)/(2Q4+4/3Q3+2/3Q2) in which Qn is determined for n=0 to 4 using 29Si-NMR, Qn stands in each case for n=0 to 4 for the area below the 29Si-NMR signal of a (4-n)-fold alkoxylated Si atom, and the sum of Qn for n=0 to 4 is normalized to 100%, and b) produced using a non-hydrolytic polycondensation method, useful as an additive in coating agent compositions at an amount of 0.1 to 10 wt. % relating to the total weight of the coating agent composition, the coating agent composition containing at least one synthetic polymer which differs from the polyalkoxysiloxane, and in the case of a co-cross-linking reactive synthetic polymer, a crosslinking agent which differs from the polyalkoxysiloxane and from the synthetic polymer.

Abstract: The invention relates to polyester-modified poly-siloxanes of the general formula (I) where A is an alkyl group having 1 to 8 carbon atoms, Z is an aliphatic group having 1 to 14 carbon atoms, R is an aliphatic and/or cycloaliphatic and/or aromatic poly-ester group containing at least 3 ?and having a weight-average molecular weight of 200 to 4000 g/mol, with no Zerewitinoff hydrogen atoms, Q is a group which contains no Zerewitinoff hydrogen atoms and is free from reactive carbon-carbon multiple bonds, m is 3 to 200 and o+n=2, with both o and n being other than zero. The invention further relates to the use of the compounds of the invention in thermoplastics, moulding compounds and coating materials.

Abstract: The invention relates to polyester-modified poly-siloxanes of the general formula (I) where A is an alkyl group having 1 to 8 carbon atoms, Z is an aliphatic group having 1 to 14 carbon atoms, R is an aliphatic and/or cycloaliphatic and/or aromatic poly-ester group containing at least 3 and having a weight-average molecular weight of 200 to 4000 g/mol, with no Zerewitinoff hydrogen atoms, Q is a group which contains no Zerewitinoff hydrogen atoms and is free from reactive carbon-carbon multiple bonds, m is 3 to 200 and o+n=2, with both o and n being other than zero. The invention further relates to the use of the compounds of the invention in thermoplastics, moulding compounds and coating materials.