Polysiloxanes having quaternary ammonium groups, a process for the preparation thereof and the use thereof in cleaning and care formulations

1. A polysiloxane of the general formula I:

[M′ D n ] 3 T  formula I

in which the substituents and indices are:

M′=XSiY 2 O 1/2

D=SiY 2 O 2/2

T=SiZO 3/2

X=identical or different organic radicals carrying ammonium functions,

Y=identical or different radicals from the group consisting of alkyl, aryl or alkaryl having 1 to 30 carbon atoms,

Z=identical or different radicals from the group consisting of alkyl, aryl or alkaryl having 1 to 30 carbon atoms,

n=from 2 to 200

wherein,

wherein

X=-R1-R2, where

R1 are identical or different divalent radicals selected from the group consisting of

R2 is selected from the group consisting of

R3 are identical or different radicals from the group consisting of hydrogen or alkyl having 1 to 6 carbon atoms,

R4 are identical or different divalent hydrocarbon radicals which optionally contain ether functions,

R5, R6, R7 are, in each case independently of one another, hydrogen or alkyl radicals having 1 to 30 carbon atoms,

R8 are identical or different radicals from the group —O; —NR10,

R9 are identical or different optionally branched divalent hydrocarbon radicals,

R10 are identical or different radicals from the group consisting of hydrogen or alkyl having 1 to 6 carbon atoms,

R11 are identical or different radicals of the general formula:

R12 are identical or different alkyl, aryl or alkaryl radicals having 1 to 30 carbon atoms which optionally contain ether functions,

e is from 0 to 20,

f is from 0 to 20, e+f>=1,

x is from 2 to 18,

a is from 2 to 18,

A - are identical or different counter ions to the positive charges on the quaternized nitrogen groups, selected from inorganic or organic anions of the acids HA, and derivatives thereof.

2. The polysiloxane as claimed claim 1 , wherein

R1 has the meaning

3. A process for the preparation of polysiloxanes as claimed in any of claims 1 to 2 , wherein first aryltris(dimethylsilyloxy)silanes and/or alkyltris-(dimethylsilyloxy)silanes are equilibrated with cyclic siloxane compounds, epoxides containing double bonds are then hydrosilylated with the resulting SiH-functional equilibration product, and the epoxy siloxanes thus obtained are finally reacted with tertiary amines to give the corresponding quaternary siloxanes.

4. The polysiloxane of claim 2 , wherein

Y=methyl or phenyl;

Z=methyl or phenyl;

n=3 to 120;

R12=methyl, ethyl or phenyl;

e=0 to 10; and

f=0 to 10.

5. The polysiloxane of claim 4 , wherein

Y=methyl;

n=8 to 80;

R12=methyl;

e=1 to 3; and

a=3.

6. The polysiloxane of claim 5 , wherein

R2 is

R5 is methyl or C12 alkyl;

R7 is methyl;

R8 is NR10; and

R10 is hydrogen.

7. The polysiloxane of claim 6 , wherein

A - is selected from the group consisting of acetic acid, L-hydroxycarboxylic acid and aromatic carboxylic acid.

8. A method of providing conditioning effect and gloss on hair which comprises of administering an effective amount of the polysiloxane of claim 7 .

9. A method of enhancing the breaking effect and gloss retention of a car care formulation which comprises of adding an effective amount of the polysiloxane of claim 7 .