Patent ID: 8729207

Claim:
Polyester-polysiloxane copolymers characterized in that a trimethylcaprolactone is used for building up the polyester block and are compounds of the general formula (I) M 2+f+2g-a-b M′ a M″ b D c D′ d D″ e T f Q g formula (I) where M=(R 1 3 SiO 1/2 ), M′=(R 1 2 R 2 SiO 1/2 ), M″=(R 1 2 R 3 SiO 1/2 ), D=(R 1 2 SiO 2/2 ), D′=(R 1 R 2 SiO 2/2 ), D″=(R 1 R 3 SiO 2/2 ), T=(R 1 SiO 3/2 ) and Q=(SiO 4/2 ); where a=0 to 10, b=0 to 15, c=0 to 350, d=0 to 50, e=0 to 100, f=0 to 12, g=0 to 8, with the proviso that b+e≧1 where R 1 =independently of the others, identical or different linear or branched, optionally aromatic hydrocarbon radicals having 1 to 30 carbon atoms, which optionally carry hydroxyl or ester functions, R 2 =independently of the others, identical or different polyether radicals, or those radicals of the formula (II) and R 3 =independently of the others, identical or different radicals of the general formulae (IIIa) or (IIIb) -A(BC) k formula (IIIa), -A(B′C′) k formula (IIIb), where C=independently of the others, identical or different polyester radicals of the formula (IV) B=independently of the others, identical or different divalent heteroatom groups; A=independently of the others and identical or different, a (k+1)-valent organic radical; C′=independently of the others, identical or different polyester radicals of the formula (V) B′=independently of the others, identical or different divalent radicals containing carbonyl groups, where X=independently of the others and identical or different, O or NH, preferably oxygen O, R 4 is a linear or branched alkyl radicals having 1 to 16 carbon atoms or hydrogen, R 5 , R 7 =independently of one another, identical or different alkyl or aryl radicals, R 6 =independently of the others, identical or different, optionally branched alkyl radicals or an acyl radical, R 8 , R 11 =independently of one another, identical or different linear or branched alkyl radicals having 1 to 16 carbon atoms or hydrogen, preferably methyl or hydrogen, in particular hydrogen, and and h=0 to 22, i=0 to 50, j=0 to 50, k=1 to 3, l=0 to 50, m=0 to 50, n, o, s, t=0 to 50, p, u=1 to 4, q, v=0 to 50, with the proviso that n+o≧2 or s+t≧2.