Abstract: The present invention relates to silane-crosslinking curable compositions encompassing a polymer P having at least two terminal groups of the following formulas (I) and (II) -Am-K1—SiR1XY (I), -Am-K2—SiR2XY (II), and/or two polymers P1 and P2, polymer P1 having terminal groups of the following formula (I) -Am-K1—SiR1XY (I), and polymer P2 having terminal groups of the following formula (II) -Am-K2—SiR2XY (II), in which A denotes a divalent bonding group, K1, K2, mutually independently, denote a divalent aliphatic hydrocarbon group that has a main chain of 1 to 6 carbon atoms, the hydrocarbon groups K1, K2 being different, X, Y mutually independently denote a hydroxy group or a hydrolyzable group, R1, R2 mutually independently denote a hydrocarbon residue having 1 to 20 carbon atoms, and m assumes the values 0 or 1.

Abstract: A method for producing a silylated polyurethane including the steps: (A) converting (i) at least polyol compound having a molecular weight of 4,000-30,000 g/mol and at least one monofunctional compound relative to isocyanates and (ii) at least one diisocyanate at a stoichiometric excess of the sum of the polyol compound(s) and monofunctional compound relative to the diisocyanate compound(s), whereby a hydroxyl-terminated polyurethane prepolymer is formed; and (B) converting the polyurethane prepolymer and one or more isocyanate silane(s) of the formula (I): OCN—R—Si—(R1)m(-OR2)3-m, where m is 0, 1 or 2, each R2 is an alkyl radical having 1 to 4 carbon atoms, each R1 is an alkyl radical having 1 to 4 carbon atoms, and R is a difunctional organic group. Also compounds comprising the silylated polyurethane that can be so produced, and the use thereof as an adhesive and sealant or coating composition.

Abstract: The invention relates to silane cross-linking curable compositions, comprising a polymer P with at least two terminal groups of the following formulae (I) and (II) -Am-K1-SiXYZ (1), -Am-K2-SiXYZ (II), and/or two polymers P1 and P2, the polymer P1 having terminal groups of the following formula (I) -Am-K1-SiXYZ (I), and the polymer P2 having terminal groups of the following formula (II) -Am-K2-SiXYZ (II). In said formulae, A represents a bivalent binding group K1 and K2 independently of one another represent a bivalent aliphatic hydrocarbon group with a main chain of between 1 and 6 carbon atoms, the hydrocarbon groups K1, K2 being different, X, Y and Z independently of one another represent a hydroxy group of a hydrolysable group and m stands for 0 or 1.

Abstract: The invention relates to silane cross-linking curable compositions, comprising a polymer P with at least two terminal groups of the following formulae (I) and (II) -Am-K1—SiXYZ (I), -Am-K2—SiXYZ (II), and/or two polymers P1 and P2, the polymer P1 having terminal groups of the following formula (I) -Am-K1—SiXYZ (I), and the polymer P2 having terminal groups of the following formula (II) -Am-K2—SiXYZ (II). In said formulae, A represents a bivalent binding group K1 and K2 independently of one another represent a bivalent aliphatic hydrocarbon group with a main chain of between 1 and 6 carbon atoms, the hydrocarbon groups K1, K2 being different, X, Y and Z independently of one another represent a hydroxy group of a hydrolysable group and m stands for 0 or 1.

Abstract: This disclosure relates to a curable composition comprising at least one polymer A with at least one reactive silyl group and at least one polymer B with at least one reactive silyl group, the number of reactive silyl groups in the polymer A being greater or equal to the number of silyl groups in polymer B and the reactive silyl groups being capable of cross-linking to form siloxane bonds. The disclosure also relates to preparations containing a composition of this type and to the use of said compositions.

Abstract: Aqueous, storage-stable emulsions of ?-silyl terminated polymers are useful as adhesives, sealing compounds and coating materials. The ?-silyl terminated polymers correspond to the general formula (I): in which R1 is a linear or branched alkyl or alkoxy group containing 1 to 4 carbon atoms, R2 and R3 independently of one another are linear or branched alkyl groups containing 1 to 4 carbon atoms, R4 and R6 independently of one another are divalent organic connecting groups, R5 is a hydrophobic divalent polymer group; and R7 is a CH2SiR1(OR2)(OR3) group, in which R1, R2 and R3 have the above meaning or R7 stands for a group that lends the polymer of the general formula (I) the property of self-emulsification in water by forming an oil in water emulsion.

Abstract: The invention relates to a silylated polyurethane that is manufactured by reacting at least one polyether compound having an OH number per DIN 53783 between 3 and 20 mg KOH/g, made up of at least two polyoxyalkylene blocks A and B, the number of carbon atoms in the alkylene units of blocks A and B differing by at least 1, with one or more isocyanatosilanes of formula (I): OCN—R—Si—(R1)m(—OR2)3-m, in which m is 0, 1, or 2, each R2 is an alkyl residue having 1 to 4 carbon atoms, each R1 is an alkyl residue having 1 to 4 carbon atoms, and R is a difunctional organic group, in order to cap the hydroxyl groups of the prepolymer with the isocyanatosilane, thereby forming a silylated polyurethane that comprises alkoxysilyl groups as reactive end groups. The silylated polyurethanes that are described are suitable for the manufacture of adhesive, sealant, or coating-agent preparations having good mechanical properties.

Abstract: A method for producing a silylated polyurethane including the steps: (A) converting (i) at least polyol compound having a molecular weight of 4,000-30,000 g/mol and at least one monofunctional compound relative to isocyanates and (ii) at least one diisocyanate at a stoichiometric excess of the sum of the polyol compound(s) and monofunctional compound relative to the diisocyanate compound(s), whereby a hydroxyl-terminated polyurethane prepolymer is formed; and (B) converting the polyurethane prepolymer and one or more isocyanate silane(s) of the formula (I): OCN—R—Si—(R1)m(-OR2)3-m, where m is 0, 1 or 2, each R2 is an alkyl radical having 1 to 4 carbon atoms, each R1 is an alkyl radical having 1 to 4 carbon atoms, and R is a difunctional organic group. Also compounds comprising the silylated polyurethane that can be so produced, and the use thereof as an adhesive and sealant or coating composition.

Abstract: The invention relates to silane cross-linking curable compositions, comprising a polymer P with at least two terminal groups of the following formulae (I) and (II) -Am-K1—SiXYZ (I), -Am-K2—SiXYZ (II), and/or two polymers P1 and P2, the polymer P1 having terminal groups of the following formula (I) -Am-K1—SiXYZ (I), and the polymer P2 having terminal groups of the following formula (II) -Am-K2—SiXYZ (II). In said formulae, A represents a bivalent binding group K1 and K2 independently of one another represent a bivalent aliphatic hydrocarbon group with a main chain of between 1 and 6 carbon atoms, the hydrocarbon groups K1, K2 being different, X, Y and Z independently of one another represent a hydroxy group of a hydrolysable group and m stands for 0 or 1.

Abstract: The present invention relates to silane-crosslinking curable compositions encompassing a polymer P having at least two terminal groups of the following formulas (I) and (II) -Am-K1—SiR1XY (I), -Am-K2—SiR2XY (II), and/or two polymers P1 and P2, polymer P1 having terminal groups of the following formula (I) -Am-K1—SiR1XY (I), and polymer P2 having terminal groups of the following formula (II) -Am-K2—SiR2XY (II), in which A denotes a divalent bonding group, K1, K2, mutually independently, denote a divalent aliphatic hydrocarbon group that has a main chain of 1 to 6 carbon atoms, the hydrocarbon groups K1, K2 being different, X, Y mutually independently denote a hydroxy group or a hydrolyzable group, R1, R2 mutually independently denote a hydrocarbon residue having 1 to 20 carbon atoms, and m assumes the values 0 or 1.

Abstract: This disclosure relates to a curable composition comprising at least one polymer A with at least one reactive silyl group and at least one polymer B with at least one reactive silyl group, the number of reactive silyl groups in the polymer A being greater or equal to the number of silyl groups in polymer B and the reactive silyl groups being capable of cross-linking to form siloxane bonds. The disclosure also relates to preparations containing a composition of this type and to the use of said compositions.

Abstract: Aqueous, storage-stable emulsions of ?-silyl terminated polymers are useful as adhesives, sealing compounds and coating materials. The ?-silyl terminated polymers correspond to the general formula (I): in which R1 is a linear or branched alkyl or alkoxy group containing 1 to 4 carbon atoms, R2 and R3 independently of one another are linear or branched alkyl groups containing 1 to 4 carbon atoms, R4 and R6 independently of one another are divalent organic connecting groups, R5 is a hydrophobic divalent polymer group; and R7 is a CH2SiR1(OR2)(OR3) group, in which R1, R2 and R3 have the above meaning or R7 stands for a group that lends the polymer of the general formula (I) the property of self-emulsification in water by forming an oil in water emulsion.