Composition and process for producing silylated polymers and use thereof

Process for producing a composition comprising at least one silylated polymer, comprising the following steps:

• (i) synthesizing a polymer by combining component A, which is at least one hydroxy-functionalized polymer selected from the group consisting of polyoxyalkylene diols, polyoxyalkylene triols, and mixtures thereof, with component B, which is isophorone diisocyanate using a metal-siloxane-silanol (ate) compound according to structure (IV), which is a metal silsesquioxane
• where
• X4 is selected Zn, Ti, Zr, Hf, V, Fe, Sn and Bi, and
• X4 is joined to OR where R is selected from the group consisting of —H, -methyl, -ethyl, -propyl, -butyl, -octyl, -isopropyl, and -isobutyl,
• Z1, Z2 and Z3 are each independently C1- to C20-alkyl, C3- to C8-cycloalkyl, C2- to C20-alkenyl and C5- to C10-aryl, and
• R1, R2, R3 and R4 are each independently C1- to C20-alkyl, C3- to C8-cycloalkyl, C2- to C20-alkenyl, and C5- to C10-aryl,
• wherein component A is in deficiency relative to component B,
• (ii) optionally admixing the polymer from step (i) with a catalyst selected from dibutyltin dilaurate or a metal-siloxane-silanol (ate) compound selected from heptaisobutyl POSS-titanium (IV) ethoxide, heptaisobutyl POSS-tin (IV) ethoxide and mixtures thereof, wherein the process is carried out at temperatures of at least 20° C. and at most 80° C. and the amount of catalyst is in the range from 20 to 200 ppm and wherein the polymer obtained in each case from step (i) was reacted with an aminosilane selected from
• at least one aminosilane of the general structure (VIII) and a mixture thereof,
• where
• R7 is H,
• R8 is H, an optionally substituted straight-chain or branched C1- to C25-alkyl group, an optionally substituted straight-chain or branched C2- to C25-alkenyl group or an optionally substituted C4- to C18-cycloalkyl group or an optionally substituted C4- to C18-aryl group, or a radical of the general structure (Vb),
• R* is absent or an optionally substituted straight-chain or branched C1- to C25-alkyl group or an optionally substituted C4- to C18-cycloalkyl group or an optionally substituted C4- to C18-aryl group and, when R* is absent, the silicon atom is bonded directly to the nitrogen atom,
• R12 and R14 are each independently H or a radical selected from the group consisting of —R15, —COOR15 and —CN,
• R13 is H or a radical selected from the group consisting of —CH2—COOR15, —COOR15, —CONHR15, —CON(R15)2, —CN, —NO2, —PO(OR15)2, —SOR15 and —SO2OR15,
• R15 is a hydrocarbyl radical having 1 to 20 carbon atoms and optionally having at least one heteroatom,
• R9, R10, R11 are independently H, an optionally substituted straight-chain or branched C1- to C5-alkyl group, an optionally substituted straight-chain or branched C2- to C10-alkenyl group or an optionally substituted C4- to C14-cycloalkyl group or an optionally substituted C4- to C14-aryl group, and
• each Y is independently either O or a direct bond of the silicon atom to the respective R9, R10 or R11 radical.