Polysiloxanes as anti-adhesive and dirt-repellant additives, method for the production and use thereof

A polysiloxane obtained by the addition of at least one monovinyl-functional polysiloxane and at least one epoxy-functional, monovinyl-functional component onto an Si—H-functional polysiloxane, characterized in that the at least one monovinyl-functional polysiloxane possesses the formula (I):

• in which
• Z is hydrogen or an alkyl group having 1 to 4 carbon atoms, and
• X is a monovalent radical of the following formula:
• in which p=0 or 1, q=0 to 30, and r=1 to 400, and, if p=1, q≧2,
• Ra is a linear, halogenated or unhalogenated alkyl radical having 1 to 30 carbon atoms, a branched or cyclic, halogenated or unhalogenated alkyl radical having 3 to 30 carbon atoms, or an aryl radical having 6 to 30 carbon atoms, or an alkylaryl radical or an arylalkyl radical having 7 to 30 carbon atoms, or an alkoxyalkylene oxide-alkyl radical or alkoxypolyalkylene oxide-alkyl radical,
• all Rb, Rc, Rd, and Re independently of one another are a linear, halogenated or unhalogenated alkyl radical having 1 to 30 carbon atoms, a branched or cyclic, halogenated or unhalogenated alkyl radical having 3 to 30 carbon atoms, or an aryl radical having 6 to 30 carbon atoms, or an alkylaryl radical or an arylalkyl radical having 7 to 30 carbon atoms,
• Rd and Re additionally, independently of one another, may be Ra[SiRbRcO]r, in which
• Ra, Rb, Rc, and r are as defined above and are selected independently thereof.