Polysiloxanes with quarternary groups featuring nitrogen atoms

1. A flowable, non-cross-linked polyorganosiloxane having the following structural units

—Si(CH 3 ) 2 —O—;

—Si(CH 3 )(Z)-O—; and

—Si(CH 3 )(X)—O—;

as well as, optionally, one or several units having the following structure:

whereby said structural units may be distributed over the polysiloxane chain in any desired way;

whereby the two terminal groups of the polyorganosiloxane are formed by units having the formula

(CH 3 )(Y) 2 Si—O—,

wherein all radicals Z present independently of one another represent CH 3 or a radical having the formula (I)

—R 2 —[NR(CH 2 ) b ] c NR 2   (I),

or a radical of said formula (I), in which a additional radical R, where the additional radical R is not hydrogen is bonded to one or several of the nitrogen atoms present, so that said nitrogen atoms are in the quaternized form;

whereby X represents CH 3 or a radical having the formula (II)

—R 2 —(OCHR 4 —CHR 5 ) d OR 1   (II);

whereby all radicals R independently of one another represent hydrogen or an alkyl radical with 1 to 8 carbon atoms; all radicals R 1 , R 4 and R 5 independently of one another represent H or CH 3 ; all radicals R 2 independently of one another represent a linear or a branched alkylene radical with from 2 to 6 carbon atoms, and in each unit —OCHR 4 —CHR 5 not more than one of the radicals R 4 and R 5 represent CH 3 ;

b is a number of from 2 to 6,

c is a number of 0 or 1; and

d is a number of from 2 to 25;

whereby all radicals Y present independently of one another represent a radical of the formula (I), in which a additional radical R, where the additional radical R is not hydrogen is bonded to all nitrogen atoms present, so that all nitrogen atoms are present in the quaternized form, or whereby all radicals Y independently of one another represent a radical of the formula (III) or (IV) or (V)

—R 2 —CH(OR 1 )R  (III)

 —R 2 —COOH  (IV)

whereby B is the monovalent radical derived from ethylene oxide or a radical having the formula

—CH 2 —CH 2 —OH, or the formula —CH(OH)—CH 3 ,

or whereby all radicals Y independently of one another represent

CH 3 , OH or OR,

whereby the polysiloxane contains at least one radical of the formula (I), in which at least one additional radical R, where the additional radical R is not hydrogen is bonded to at least one nitrogen atom and said nitrogen atoms is therefore present in the quaternized form;

whereby in case the polysiloxane does not contain any radical of the formula (II), at least one of the radicals Y is a radical having the formula (III), (IV) or (V), or a radical of the formula (I) in which a further radical R which is not hydrogen is bonded to all nitrogen atoms;

whereby in case the polysiloxane does not contain any radical of the formula (II), a further radical R, the latter not being hydrogen, is bonded to all nitrogen atoms present in the polysiloxane, so that all nitrogen atoms are present in the quaternized form;

whereby in case the polysiloxane contains one or several radicals X of the formula (II) all radicals Y represent CH 3 ;

and whereby the anions associated with the quaternized nitrogen atoms are methyl sulfate anions, chloride anions, benzene sulfonate anions, or toluene sulfonate anions.

2. The polyorganosiloxane according to claim 1 , which contains at least one radical Z having the formula

or the formula

or the formula

wherein all radicals R 3 independently of one another represent an alkyl radical with from 1 to 8 carbon atoms, and whereby the associated anion is the methyl sulfate anion, the chloride anion, the benzene sulfonate anion or a toluene sulfonate anion.

3. An aqueous solution or dispersion containing a polyorganosiloxane according to claim 1 .

4. A method of treating fiber materials which comprises applying a dispersion according to claim 3 thereto.

5. An aqueous solution or dispersion containing a polyorganosiloxane according to claim 2 .

6. A method of treating fiber materials which comprises applying a dispersion according to claim 5 thereto.