BUILDING WATERPROOFING KIT-OF-PARTS AND USE THEREOF AS LIQUID BUILDING WATERPROOFING AGENT AND USE THEREOF

Abstract

The present invention relates to a building waterproofing kit-of-parts comprising A) an aqueous first composition, containing ao) water, a1) a ketone solvent and a2) a carboxylic acid and a3) an alkylalkoxysilane and/or a4) an aminoalkylalkoxysilane, and B) a second composition, containing b1) an alkylalkoxysilane and b2) a hydrocarbon solvent as well as b3) an alcohol solvent and/or b4) an ester solvent and/or b5) a ketone solvent. The invention further relates to the use of the kit-of-parts for the waterproofing of buildings and the elimination of moisture damage in buildings. The invention also relates to a liquid building waterproofing agent, obtained by blending the aforementioned compositions A) and B). Furthermore, the invention relates to an aqueous composition, containing 3.0 to 8.0% by weight of the ketone solvent a1), 0.1 to 1.2% by weight of the aminoalkylalkoxysilane a4), 0.1 to 1.2% by weight of the alkylalkoxysilane a3). 0.01 to 0.75% by weight of the carboxylic acid a2) and/or 88.85 to 96.79% by weight of water, and to the use thereof as a concentrate for the production of the composition A).

Claims

1. A building waterproofing kit-of-parts, in particular a masonry waterproofing kit-of-parts, comprising A) a first composition, consisting of or containing a0) water, a1) at least one ketone solvent, alcohol solvent or ester solvent, in particular ketone solvent, and a2) at least one carboxylic acid with 1 to 10 carbon atoms, and a3) at least one alkylalkoxysilane, and/or, in particular and, a4) at least one aminoalkylalkoxysilane, aminoalkylsilane and/or aminoalkoxysilane, in particular aminoalkylalkoxysilane, and B) a second composition, consisting of or containing b1) at least one alkylalkoxysilane, and b2) at least one hydrocarbon solvent, and/or, in particular and, b3) at least one alcohol solvent, ketone solvent and/or ester solvent, in particular alcohol solvent, and/or b4) at least one ester solvent, alcohol solvent and/or ketone solvent, in particular ester solvent.

2. The kit-of-parts according to claim 1, wherein the ketone solvent a1) is selected from the group consisting of acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone and their mixtures, in particular represents or comprises acetone, and/or that the aminoalkylalkoxysilane a4) comprises at least one aminoalkyldialkoxysilane and/or one aminoalkyldiethoxysilane and/or is selected from the group consisting of 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-aminopropylmethyldiethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, 2-aminopropyl-3-aminopropyltriemthoxysilane, 2-aminopropyl-3-aminopropyltriethoxysilane, 2-aminoethyl-2-aminoethyl-3-aminopropyltrimethoxysilane, 2-aminoethyl-2-aminoethyl-3-aminopropyltriethoxysilane, N-(n-butyl)-3-aminopropyltrimethoxysilane and their mixtures, in particular represents or comprises 3-aminopropyltrimethoxysilane, and/or that the alkylalkoxysilane a3) and/or the alkylalkoxysilane b1) comprises at least one trifunctional silane compound, in particular selected from the group consisting of methyltrimethoxysilane, phenyltrimethoxysilane, methyltriethoxysilane, phenyltriethoxysilane, isobutyltrimethoxysilane, isobutyltriethoxysilane, propyltrimethoxysilane, propyltriethoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane and their mixtures, and/or at least one difunctional silane compound, in particular selected from the group consisting of dimethyldimethoxysilane, dimethyldiethoxysilane, diethyldiethoxysilane, diphenyldimethoxysilane and their mixtures, and/or that the at least one carboxylic acid with 1 to 10 carbon atoms a2) is selected from the group consisting of formic acid, acetic acid, propionic acid, butyric acid, 2-methly butyric acid, isovaleric acid, trimethyl acetic acid, glycolic acid, lactic acid and their mixtures, in particular represents or comprises formic acid, and/or that the at least one ester solvent b4) is selected from the group consisting of methyl acetate, ethyl acetate, n-butyl acetate, amyl acetate and their mixtures, in particular comprises or represents ethyl acetate, and/or that the at least one alcohol solvent b3) is selected from the group consisting of methanol, ethanol, isopropanol, n-butanol, isobutanol, sec-butanol, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monobutyl ether and their mixtures, in particular represents or comprises ethanol and/or isopropanol, and/or that the at least one hydrocarbon solvent b2) is selected from the group consisting of toluene, xylene, cyclohexane, n-hexane, octane and their mixtures, in particular comprises or represents toluene.

3. The kit-of-parts according to claim 1 or 2, wherein the alkylalkoxysilane a3) comprises or represents isobutyltrimethoxysilane, and/or that the at least one alkylalkoxysilane b1) comprises or represent triethoxymethylsilane.

4. The kit-of-parts according to any one of the preceding claims, wherein the at least one alcohol solvent b3) represents ethanol and isopropanol, and in particular that the quantity of isopropanol is greater than the quantity of ethanol in relation to the volume fraction used.

5. The kit-of-parts according to any one of the preceding claims, wherein the first aqueous composition A) contains 0.5 to 5.0 weight percent, preferably 0.75 to 4.0 weight percent, and particularly preferred 1.0 to 3.0 weight percent of the at least one ketone solvent a1), in particular acetone, 0.01 to 1.0 weight percent, preferably 0.05 to 0.75 weight percent, and particularly preferred 0.1 to 0.5 weight percent of the at least one aminoalkylalkoxysilane a4), in particular 3-aminopropyltrimethoxysilane, 0.01 to 1.0 weight percent, preferably 0.05 to 0.75 weight percent and particularly preferred 0.1 to 0.5 weight percent of the at least one alkylalkoxysilane a3), in particular isobutyltrimethoxysilane, 0.001 to 0.75 weight percent, preferably 0.005 to 0.5 weight percent, and particularly preferred 0.01 to 0.25 weight percent of the at least one carboxylic acid a2) with 1 to 10 carbon atoms, in particular formic acid, and/or 80.0 to 99.0 weight percent, preferably 90.0 to 98.5 weight percent, and particularly preferred 95.0 to 98.0 weight percent of water a0), in each case in relation to the total weight of the aqueous composition A), wherein the components forming the first aqueous composition A) always amount to 100 weight percent, and/or, in particular and, that the second composition B) contains 30.0 to 80.0 weight percent, preferably 40.0 to 70 weight percent, and particularly preferred 45 to 65 weight percent of the at least one alkylakoxysilane b1), in particular triethoxymethylsilane, 1.0 to 15.0 weight percent, preferably 1.5 to 10.0 weight percent, and particularly preferred 2.0 to 7.0 weight percent of the at least one ester solvent b4), in particular ethyl acetate, 20.0 to 70.0 weight percent, preferably 25.0 to 60.0 weight percent, and particularly preferred 30.0 to 50.0 weight percent of the at least one alcohol solvent b3), in particular ethanol and/or isopropanol, and/or 0.01 to 1.0 weight percent, preferably 0.05 to 0.75 weight percent and particularly preferred 0.1 to 0.5 weight percent of the at least one hydrocarbon solvent b2), in particular toluene, in each case in relation to the total weight of the aqueous composition B), wherein the components forming the first composition B) always amount to 100 weight percent.

6. The kit-of-parts according to any one of the preceding claims, wherein the second composition B) contains 20.0 to 70.0 weight percent, preferably 25.0 to 60.0 weight percent, and particularly preferred 30.0 to 50.0 weight percent isopropanol, and 0.1 to 10.0 weight percent, preferably 0.2 to 5.0 weight percent, and particularly preferred 0.5 to 3.0 weight percent ethanol.

7. The kit-of-parts according to any one of the preceding claims, wherein the first composition A) and/or the second composition B) represent single-phase systems.

8. The kit-of-parts according to any one of the preceding claims, wherein the volume ratio between compositions A) and B) is in the range of 2:1 to 50:1, preferably in the range of 5:1 to 40:1, and particularly preferred in the range of 8:1 to 20:1.

9. The kit-of-parts according to any one of the preceding claims, characterized by A) a first composition, consisting of or containing a0) water, a1) at least one ketone solvent, a2) at least one carboxylic acid with 1 to 10 carbon atoms, a3) at least one alkylalkoxysilane, a4) at least one, in particular present in protonated form, aminoalkylalkoxysilane, aminoalkylsilane and/or aminoalkoxysilane, in particular aminoalkylalkoxysilane, and/or, in particular and, B) a second composition, consisting of or containing b1) at least one alkylalkoxysilane, and b2) at least one hydrocarbon solvent, b3) at least one alcohol solvent, and b4) at least one ester solvent.

10. The kit-of-parts according to any one of the preceding claims, wherein the composition A) is obtainable through i) producing a mixture of the at least one carboxylic a2) with 1 to 10 carbon atoms, in particular formic acid, and water, ii) producing a mixture of the at least one ketone solvent, alcohol solvent and/or ester solvent, preferably ketone solvent a1), in particular acetone, the at least one aminoalkylalkoxysilane a4) and the at least one alkylalkoxysilane a3), iii) mixing the compositions obtained according to step i) and step ii).

11. The kit-of-parts according to claim 10, wherein the mixing according to step iii) comprises the addition of the composition obtained according to step ii) to the composition obtained according to step i).

12. The kit-of-parts according to any one of the preceding claims, wherein the composition A) has a pH value in the range of 3.0 to 5.0 or of less than 5.0, preferably in the range of 3.5 to 4.9, and particularly preferred in the range of 3.7 to 4.8, or is adjusted to a pH value in the range of 3.0 to 5.0 or of less than 5.0, preferably in the range of 3.5 to 4.9.

13. Use of the kit-of-parts according to any one of the preceding claims for waterproofing a building, preferably masonry, particularly preferred damp masonry, and/or for the removal of damage caused by damp in a building, in particular masonry; and/or for the sealing against damp of buildings, in particular masonry, and/or for the formation of an, in particular essentially horizontal, moisture barrier in buildings, in particular in masonry.

14. A liquid building waterproofing agent, in particular masonry waterproofing agent, obtained or obtainable through mixing of composition A) and composition B) according to any one of claims 1 to 12.

15. The building waterproofing agent according to claim 14, wherein said agent has a pH value in the range of 3.0 to 5.0 or of less than 5.0, preferably in the range of 3.5 to 4.9, and particularly preferred in the range of 3.7 to 4.8, or is adjusted to a pH value in the range of 3.0 to 5.0 or of less than 5.0, preferably in the range of 3.5 to 4.9.

16. An aqueous composition, consisting of or containing 3.0 to 8.0 weight percent, preferably 4.0 to 7.0 weight percent, and particularly preferred 5.0 to 6.0 weight percent, at least one ketone solvent, alcohol solvent and/or ester solvent, preferably ketone solvent, a1), in particular acetone, 0.1 to 1.2 weight percent, preferably 0.3 to 1.0 weight percent, and particularly preferred 0.5 to 0.8 weight percent, at least one aminoalkylalkoxysilane a4), in particular 3-aminopropyltrimethoxysilane, 0.1 to 1.2 weight percent, preferably 0.3 to 1.0 weight percent, and particularly preferred 0.5 to 0.8 weight percent, at least one alkylalkoxysilane a3), in particular isobutyltrimethoxysilane, 0.01 to 0.75 weight percent, preferably 0.05 to 0.5 weight percent, and particularly preferred 0.1 to 0.25 weight percent, at least one carboxylic acid a2) with 1 to 10 carbon atoms, in particular formic acid, and/or, in particular and, 88.85 to 96.79 weight percent, preferably 90.5 to 95.35 weight percent, and particularly preferably 92.15 to 93.9 weight percent, water, in each case in relation to the total weight of the aqueous composition, wherein the components forming the aqueous composition always amount to 100 weight percent.

17. Use of the aqueous composition according to claim 16 as a concentrate for the production of composition A) according to any one of claims 1 to 12.

Description

[0068] The object of the invention is particularly well and reliably attained by means of such building waterproofing kits-of-parts according to the invention, in particular masonry waterproofing kits-of-parts, in which [0069] the first aqueous composition A) contains [0070] 0.5 to 5.0 weight percent, preferably 0.75 to 4.0 weight percent, and particularly preferred 1.0 to 3.0 weight percent, of the at least one ketone solvent, alcohol solvent and/or ester solvent, preferably ketone solvent, al), in particular acetone, [0071] 0.01 to 1.0 weight percent, preferably 0.05 to 0.75 weight percent, and particularly preferred 0.1 to 0.5 weight percent of the at least one aminoalkylalkoxysilane a4), preferably 3-aminopropyltrimethoxysilane, 3-aminopropylmethyldiethoxysilane and/or 3-aminopropyltrimethoxysilane, in particular 3-aminopropyltrimethoxysilane, [0072] 0.01 to 1.0 weight percent, preferably 0.05 to 0.75 weight percent and particularly preferred 0.1 to 0.5 weight percent of the at least one alkylalkoxysilane a3), preferably isobutyltrimethoxysilane and/or isobutyltriethoxysilane, in particular isobutyltrimethoxysilane, [0073] 0.001 to 0.75 weight percent, preferably 0.005 to 0.5 weight percent, and particularly preferred 0.01 to 0.25 weight percent, of the at least one carboxylic acid a2) with 1 to 10 carbon atoms, preferably formic acid, acetic acid and/or propionic acid, in particular formic acid, and/or [0074] 80.0 to 99.0 weight percent, preferably 90.0 to 98.5 weight percent, and particularly preferred 95.0 to 98.0 weight percent, water a0),
in each case in relation to the total weight of the aqueous composition A), wherein the components forming the first aqueous composition A) always amount to 100 weight percent. The aqueous composition A) particularly preferably has the components formic acid, 3-aminopropyltrimethoxysilane and isobutyltrimethoxysilane. Preferably, fully desalinated water is used as suitable water.

[0075] In a further particularly preferred design, the composition A), alongside the components a0) to a4), contains no tenside additives, in particular no further additives.

[0076] The object of the invention is further particularly well and reliably attained by means of such building waterproofing kits-of-parts according to the invention, in particular masonry waterproofing kits-of-parts, in which as an alternative or in particular simultaneously, the second composition B) contains [0077] 30.0 to 80.0 weight percent, preferably 40.0 to 70 weight percent, and particularly preferably 45 to 65 weight percent of the at least one alkylakoxysilane b1), in particular triethoxymethylsilane and/or trimethoxymethylsilane, in particular triethoxymethylsilane. [0078] 1.0 to 15.0 weight percent, preferably 1.5 to 10.0 weight percent, and particularly preferably 2.0 to 7.0 weight percent, of the at least one ketone solvent, alcohol solvent and/or ester solvent, preferably ester solvent, b4), in particular ethyl acetate, [0079] 20.0 to 70.0 weight percent, preferably 25.0 to 60.0 weight percent, and particularly preferably 30.0 to 50.0 weight percent, of the at least one alcohol solvent, ketone solvent and/or ester solvent, preferably alcohol solvent, b3), preferably ethanol and/or isopropanol, in particular ethanol and isopropanol, and/or [0080] 0.01 to 1.0 weight percent, preferably 0.05 to 0.75 weight percent and particularly preferred 0.1 to 0.5 weight percent of the at least one hydrocarbon solvent b2), in particular toluene,
in each case in relation to the total weight of the aqueous composition B), wherein the components forming the first aqueous composition B) always amount to 100 weight percent.

[0081] The compositions A) and B) and the mixture obtained from A) and B) are preferably characterized by a watery or essentially water-like viscosity (determined at 22° C.). Component B) is preferably essentially water-free.

[0082] Among the kits-of-parts according to the invention, those are particularly suitable in which the second composition B), in each case in relation to the total weight of the aqueous composition B), contain 20.0 to 70.0 weight percent, preferably 25.0 to 60.0 weight percent, and particularly preferred 30.0 to 50.0 weight percent isopropanol, and 0.1 to 10.0 weight percent, preferably 0.2 to 5.0 weight percent, and particularly preferably 0.5 to 3.0 weight percent ethanol.

[0083] With the kits-of-parts according to the invention, the first aqueous composition A) and/or the second composition B) preferably are single-phase systems.

[0084] The volume ratio between compositions A) and B) is preferably in the range of 2:1 to 50:1, preferably in the range of 5:1 to 40:1, and particularly preferred in the range of 8:1 to 20:1.

[0085] Further, the object that forms the basis of the invention is also attained by mans of those building waterproofing kits-of-parts, in particular masonry waterproofing kits-of-parts, in which composition A) is obtainable by [0086] i) producing a mixture of the at least one carboxylic a2) with 1 to 10 carbon atoms, preferably propionic acid, acetic acid and/or in particular formic acid, in particular and water a0), [0087] ii) producing a mixture of the at least one ketone solvent, alcohol solvent and/or ester solvent, preferably ketone solvent a1), in particular acetone, the at least one aminoalkylalkoxysilane a4),-preferably 3-aminopropyltriethoxysilane, 3-aminopropylmethyldiethoxysilane and/or aminopropyltrimethoxysilane and in particular 3-aminopropyltrimethoxysilane, and the at least one alkylalkoxysilane a3), preferably isobutyltrimethoxysilane and/or isobutyltriethoxysilane, in particular isobutyltrimethoxysilane, [0088] iii) mixing the compositions obtained according to step i) and step ii).
Here, the mixing according to step iii) can comprise the addition of the composition obtained according to step ii) to the composition obtained according to step i). The mixing is here preferably conducted by means of stirring, wherein in a particularly advantageous design, the mixing is conducted such that oily deposits do not occur on the surface.

[0089] Furthermore, the composition A) can, in one embodiment according to the invention, have a pH value in the range of 3.0 to 5.0 or of less than 5.0, preferably in the range of 3.5 to 4.9, and particularly preferably in the range of 3.7 to 4.8, or can be adjusted to a pH value in the range of 3.0 to 5.0 or of less than 5.0, preferably in the range of 3.5 to 4.9. or in the range of 3.7 to 4.8.

[0090] The kit-of-parts according to the invention is particularly suitable for waterproofing a building, in particular masonry, particularly preferably damp masonry, for the removal of moisture damage in buildings, in particular masonry, for the moisture sealing of buildings, in particular masonry, and/or for the formation of an, in particular essentially horizontal, moisture barrier in buildings, in particular in masonry.

[0091] The object of the invention is also attained by means of an aqueous building waterproofing agent, in particular an aqueous masonry waterproofing agent, obtained or obtainable by mixing composition A) and composition B) of the kit-of-parts according to the invention.

[0092] This building or masonry waterproofing agent preferably has a pH in the range of 3.0 to 5.0 or of less than 5.0, preferably in the range of 3.5 to 4.9, and particularly preferably in the range of 3.7 to 4.8, or is adjusted to a pH in the range of 3.0 to 5.0 or of less than 5.0, preferably in the range of 3.5 to 4.9.

[0093] The building or masonry waterproofing agent according to the invention is preferably essentially directly injected after production from components A) and B) of the kit-of-parts according to the invention via bore holes and is injected into the damp masonry with the aid of cannulas inserted into said bore holes. The building or masonry waterproofing agent according to the invention is characterized by a surprisingly long shelf life, for example over a period of up to one day, preferably of up to 12 hours. For many applications, it is recommended that the agent according to the invention be used prior to expiry of a storage period of eight hours following mixing of components A) and B). The injection techniques described are known to a person skilled in the art. The bore holes should expediently not be drilled through the entire building or masonry, but instead not penetrate a wall fully, for example. These bore holes are designed such that cannulas or so-called diffusors can be easily inserted. By connecting these cannulas or diffusors with liquid containers arranged at a relatively high position by means of hoses or pipes, the liquid building or masonry waterproofing agent according to the invention can seep into a building or masonry. The number and arrangement of the bore holes depend on the conditions of the respective building or the respective masonry. Frequently, it is often sufficient when the individual bore holes are set at a distance of approximately 10 to 20 cm in an essentially horizontal row. Due to the capillary effect, at first, an even distribution of the aqueous system occurs. Although considerably quantities of water are additionally applied to the masonry with the use of the kit-of-parts according to the invention, the formation of a moisture-free area, which also serves as a horizontal humidity barrier, is achieved. Naturally, vertical or diagonal or large-volume moisture barriers can be formed via the bore holes, depending on the nature of the application.

[0094] The object of the invention is further attained by means of an aqueous composition containing [0095] 3.0 to 8.0 weight percent, preferably 4.0 to 7.0 weight percent, and particularly preferably 5.0 to 6.0 weight percent, of the at least one ketone solvent, alcohol solvent and/or ester solvent, preferably ketone solvent, a1), in particular acetone, [0096] 0.1 to 1.2 weight percent, preferably 0.3 to 1.0 weight percent, and particularly preferably 0.5 to 0.8 weight percent of the at least one aminoalkylalkoxysilane a4), 3-aminopropyltriethoxysilane, 3-aminopropylmethyldiethoxysilane and/or 3-aminopropyltrimethoxysilane, in particular 3-aminopropyltrimethoxysilane, [0097] 0.1 to 1.2 weight percent, preferably 0.3 to 1.0 weight percent and particularly preferably 0.5 to 0.8 weight percent of the at least one alkylalkoxysilane a3), preferably isobutyltrimethoxysilane and/or isobutyltriethoxysilane, in particular isobutyltrimethoxysilane, [0098] 0.01 to 0.75 weight percent, preferably 0.05 to 0.5 weight percent, and particularly preferably 0.1 to 0.25 weight percent, of the at least one carboxylic acid a2) with 1 to 10 carbon atoms, preferably formic acid, acetic acid and/or propionic acid, in particular formic acid, and/or [0099] 88.85 to 96.79 weight percent, preferably 90.5 to 95.35 weight percent, and particularly preferably 92.15 to 93.9 weight percent, water,
in each case in relation to the total weight of the aqueous composition, wherein the components forming the aqueous composition always amount to 100 weight percent.

[0100] This aqueous composition according to the invention can in particular also be used as a concentrate for the production of composition A) of the kit-of-parts according to the invention. This makes transportation and handling considerably easier.

[0101] The features of the invention disclosed in the foregoing description and in the claims can be essential for the implementation of the invention in its different embodiments, both individually as well as in any combination.