Silane-modified urea derivatives, method for the production thereof, and use thereof as auxiliary rheological agents

A method for preparing a composition, said composition comprising a reactive carrier material and a silane-modified urea derivative of formula (I)

• wherein
• X, in each instance independently, is NR4, S or O;
• R1 is a linear or branched C1-C12-alkylene radical, a saturated or unsaturated C6-C20-cycloalkylene radical, a C6-C20-arylene radical which is unsubstituted or substituted with at least one C1-C4-alkyl substituent, or —C6H4—CH2—C6H4;
• R2 in each instance is independently is H or a C1-C4-alkyl radical;
• R3 in each instance a C1-C20-alkyl or C6-C20-aryl radical;
• R4 is H, C1-C4-alkyl or C6-C20-aryl radical;
• m is 1 or 3;
• n is from 0 to 10;
• and
• x is from 0 to 2,
• comprising reacting a diisocyanate of formula (II)
• OCN—R1—NCO (II)
• with a silane compound of formula (III)
• at a temperature of from 0 to 100° C.,
• wherein X, R1, R2, R3, m, n and x are as defined above;
• wherein the reaction of the diisocyanate with the silane compound is carried out in the presence of the reactive carrier material;
• and wherein the reactive carrier material is a cross-linkable binder.

A composition consisting of a rheology auxiliary consisting of silane-modified urea derivative of formula (I)

• wherein
• X, in each instance is independently selected from NR4 or O;
• R1 is a linear or branched C1-C12-alkylene radical, a saturated or unsaturated C6-C20-cycloalkylene radical, a C6-C20-arylene radical which is unsubstituted or substituted with at least one C1-C4-alkyl substituent, or —C6H4—CH2—C6H4;
• R2 in each instance is independently is H or a C1-C4-alkyl radical;
• R3 in each instance a C1-C20-alkyl or C6-C20-aryl radical;
• R4 is H, C1-C4-alkyl or C6-C20-aryl radical;
• m is 1 or 3;
• n is from 0 to 10;
• x is from 0 to 2;
• and
• a one- or two-component curable polymer system,
• wherein the one-or two-component curable polymer system consists of a cross-linkable binder, wherein the cross-linkable binder is a silylated polymer based on a polyether, a polyurethane, a polysulfide, a silicone, an acrylate, a methacrylate or a mixture thereof.

A method for improving the rheology of a one- or two-component curable polymer system, comprising introducing a silane-modified urea derivative of formula (I)

• wherein
• X, in each instance is independently selected from NR4 or O;
• R1 is a linear or branched C1-C12-alkylene radical, a saturated or unsaturated C6-C20-cycloalkylene radical, a C6-C20-arylene radical which is unsubstituted or substituted with at least one C1-C4-alkyl substituent, or —C6H4—CH2—C6H4;
• R2 in each instance is independently is H or a C1-C4-alkyl radical;
• R3 in each instance a C1-C20-alkyl or C6-C20-aryl radical;
• R4 is H, C1-C4-alkyl or C6-C20-aryl radical;
• m is 1 or 3;
• n is from 0 to 10;
• and
• x is from 0 to 2 into the one- or two-component polymer system,
• wherein the one-or two-component curable polymer system consists of a cross-linkable binder, wherein the cross-linkable hinder is a silylated polymer based on a polyether, a polyurethane, a polysulfide, a silicone, an acrylate, a methacrylate or a mixture thereof.

A composition consisting of a silane-modified urea derivative of formula (I)

• wherein X, in each instance is independently selected from NR4 or O;
• R1 is a linear or branched C1-C12-alkylene radical, a saturated or unsaturated C6-C20-cycloalkylene radical, a C6-C20-arylene radical which is unsubstituted or substituted with at least one C1-C4-alkyl substituent, or —C6H4—CH2—C6H4;
• R2 in each instance is independently is H or a C1-C4-alkyl radical;
• R3 in each instance a C1-C20-alkyl or C6-C20-aryl radical;
• R4 is H, C1-C4-alkyl or C6-C20-aryl radical;
• m is 1 or 3;
• n is from 0 to 10;
• x is from 0 to 2;
• and
• a one- or two-component curable polymer system, and
• at least one additive selected from the group consisting of a filler, a plasticizer, an adhesion promoter, a drying agent, a solvent, a catalyst and a UV-stabilizer;
• wherein the one- or two-component curable polymer system consists of a cross-linkable binder, wherein the cross-linkable binder is a silylated polymer based on a polyether, a polyurethane, a polysulfide, a silicone, an acrylate, a methacryclate or a mixture thereof.

A composition consisting of a silane-modified urea derivative of formula (I)

• wherein X, in each instance is independently selected from NR4 or O;
• R1 is a linear or branched C1-C12-alkylene radical, a saturated or unsaturated C6-C20-cycloalkylene radical, a C6-C20-arylene radical which is unsubstituted or substituted with at least one C1-C4-alkyl substituent, or —C6H4—CH2—C6H4;
• R2 in each instance is independently is H or a C1-C4-alkyl radical;
• R3 in each instance a C1-C20-alkyl or C6-C20-aryl radical;
• R4 is H, C1-C4-alkyl or C6-C20-aryl radical;
• m is 1 or 3;
• n is from 0 to 10;
• x is from 0 to 2;
• and
• a one- or two-component curable polymer system, and
• at least one additive selected from the group consisting of a filler, a plasticizer, an adhesion promoter, a drying agent, a solvent, a catalyst and a UV-stabilizer;
• wherein the one- or two-component curable polymer system consists of a cross-linkable binder and a curing agent, wherein the cross-linkable binder is a silylated polymer based on a polyether, a polyurethane, a polysulfide, a silicone, an acrylate, a methacryclate or a mixture thereof.

A composition consisting of a silane-modified urea derivative of formula (I)

• wherein X, in each instance is independently selected from NR4 or O;
• R1 is a linear or branched C1-C12-alkylene radical, a saturated or unsaturated C6-C20-cycloalkylene radical, a C6-C20-arylene radical which is unsubstituted or substituted with at least one C1-C4-alkyl substituent, or —C6H4—CH2—C6H4;
• R2 in each instance is independently is H or a C1-C4-alkyl radical;
• R3 in each instance a C1-C20-alkyl or C6-C20-aryl radical;
• R4 is H, C1-C4-alkyl or C6-C20-aryl radical;
• m is 1 or 3;
• n is 0;
• x is from 0 to 2;
• and
• a one- or two-component curable polymer system, and
• at least one additive selected from the group consisting of a filler, a plasticizer, an adhesion promoter, a drying agent, a solvent, a catalyst and a UV-stabilizer.