Polyurethane-Organopolysiloxanes Having Carbodiimide Groups

Polyurethane and/or polyurea-polyorganosiloxane compounds and salts thereof that contain at least one structural element of formula [II]

• wherein Ri contains at least one carbodiimide group of formula [I]:
• —N═C═N— [I]
• and Ri is a structural element of formula [III]
• in which [V] has the structure:
• —X—N═C═N[X—N═C═N X]—n [V],
• in which n=0 to 10, and X is selected from aromatic, cycloaliphatic or aliphatic, at least divalent, linear or branched mono- or polyisocyanates and their mixtures of isomers and/or mixtures of different diisocyanates having up to 15 carbon atoms that were subjected to a carbodiimidation reaction, wherein said reaction yields a compound of formula [XII]:
• V[NCO]x [XII]
• wherein —V- is as defined above, and x≥2,
• P1 includes a polyalkoxyalkylamine, polyalkoxyalkanol, polyalkoxyamine or polyalkoxyalkanol compound, wherein linear, mono- or bifunctional homopolymers or random polymers or block copolymers of tetrahydrofuran, propylene oxide and ethylene oxide with 1 to 200 sequences are used, whose quality corresponds to a termination with a Zerewitinoff-active compound of formula [XIII]:
• P1[YH]g [XIII]
• wherein g≥1, and Y=—NRA- or —O—, and RA represents hydrogen, and a linear, branched, cyclic, saturated, unsaturated or aromatic hydrocarbyl radical with up to 20 carbon atoms, which may additionally contain several groups selected from —O—, —C(O)—, —NH—, tertiary amines, or quaternary ammonium compounds, and P1 is thus capable of reacting with (XII), and P2 represents an α,ω-primary or secondary amino- or hydroxyalkyl- or hydroxypolyetheralkyl-functionalized polyorganosiloxanes having the structures
• in which s=2 to 500 and s′=1 to 3, D and D′ are a primary or secondary hydroxy- or aminoalkyl- or hydroxypolyether-terminated organic radical having up to 200 carbon atoms, which is capable of undergoing a chemical polyaddition reaction with (XII), D and D′ are additionally the same or different, and RX is a linear, branched, cyclic, saturated, unsaturated, aromatic, substituted, or unsubstituted hydrocarbyl radical having up to 20 carbon atoms, which may additionally bear amino or quaternary ammonium compounds or hydroxyalkyl or hydroxypolyetheralkyl groups, whereby P2 may provide a comb-like structure, P2 is selected independently of P1, and is also selected from the polyols P1, and P3 is a linear, branched, cyclic, saturated, unsaturated, aromatic, substituted, or unsubstituted compound with up to 20 carbon atoms, which is converted to its salts by a protonatable or deprotonatable group -J-, especially amino or quaternary ammonium compounds, carboxylic or sulfonic acid groups, with suitable organic or inorganic acids or bases, or by linear, branched, mono-, bi- or higher functional homopolymers of ethylene oxide with 1 to 100 sequences, which are also in the form of random polymers or block copolymers of ethylene oxide, tetrahydrofuran, and propylene oxide, and therefore enable the polymer to achieve water solubility, emulsifiability and/or dispersibility, and is additionally capable of being incorporated into the polymer because of its termination, and a chain extender —U-selected from aliphatic, monovalent, divalent or polyvalent, linear or branched polyols or polyamines with up to 15 carbon atoms, or from primary or secondary amino- or hydroxyterminated polyethers with a molecular weight of up to 1000 g/mol.