Antistatikmittel, Verfahren zu dessen Herstellung und dessen Verwendung zur Herstellung von antistatischen Beschichtungen

Antistatic contains organically modified silicic acid (hetero)polycondensate(s), obtained by hydrolytic (partial) condensation of silicon compound(s) undergoing hydrolytic condensation and optionally other elements of boron, aluminium, phosphorus, tin, lead, transition metals, lanthanides and actinides and/or precondensates derived from these compounds by the action of water or moisture, optionally in the presence of a catalyst or solvent. 0-35 Mole-% is derived from Si compounds of formula (I). The antistatic contains 0-30 mole-% amine and/or quaternary ammonium compound(s), which contain organic group(s) with group(s) capable of polymerisation and/or polyaddition, and 0-30 mole-% salt(s) of optionally substituted (meth)acrylic acid, the total amount of (I), compounds and salts with respect to the condensate being 1-30 mole-%: ZaSiXbR(4-a-b) (I) X = hydrogen, halogen, hydroxyl, optionally substituted alkoxy, acyloxy, alkylcarbonyl, alkoxycarbonyl or an amino group NR'2; Z = R22N-(R3-N R2-)k-R3-, 1/m Am-R22N+-R3-, (HO-R3)2N-R3, Cl-SO2-R3-, (R2O)2P(O)-R3, 1/m Am-(R22N)2C=S+-R3-, 3/n Kn+(-OOC)2N-R3-N(COO-)-R3-, 1/m Am-H2C=C(R2)-R3-N+(R22)-R3- or 1/m Am- H2C=C(R2)-CO-O-R3-N+(R22)-R3- or a quaternary ammonium salt derived from one of these; R = optionally substituted alk(en)yl, (alkyl)aryl or arylalkyl; R' = H, alkyl or aryl; R2 = H, optionally substituted alk(en)yl, (alkyl)aryl or arylalkyl; R3 = optionally substituted alk(en)ylene or arylene; Am- = an anion with charge m; Kn+ = a cation with charge n; a, b = 1, 2 or 3; a+b = 2, 3 or 4; and k = 0, 1, 2 or 3. USE - Used for producing antistatic coatings (claimed), and useful for a wide range of plastics. ADVANTAGE - Unlike existing antistatics, these materials are useful universally applicable on plastics. They give a long-lasting, scratch-proof antistatic finish, adhere well and are not toxic. Production and application of the antistatic is easy and cost-effective.