Silicone sealant, use and sealant containing sealant

Abstract

A silicone sealant compound, the composition of which is obtained by mixing one or more polysiloxanes in a concentration of 25-90 wt%, one or more plasticizers in a concentration of 2-35 wt%, one or more crosslinkers in a concentration of 3-8 wt%, a mixture of adhesion promoters in a concentration of 0-3 wt% and a catalyst in a concentration of 0.01-0.3 wt%. In this case, the mixture of adhesion promoters comprises at least one primary aminosilane-based adhesion promoter, at least 3-aminopropyltriethoxysilane and at least propyltrimethoxysilane.

Description

1 SILICONE SEALANT, USES SEALANT PROTECTION TECHNICAL DOMAIN 5 The invention relates to the technical field of silicones, more specifically to the technical field of silicones for multifunctional use. STANDARD OF TECHNOLOGY 10 Silicones or polysiloxanes are synthetic substances consisting of repeating units of silicon and oxygen atoms, with side chains containing hydrogen and / or carbon atoms. Due to their hydrophobic properties, they are particularly suitable for creating watertight seals. In addition, polysiloxanes exhibit low thermal conductivity, limited chemical reactivity, and high resistance to oxygen and UV radiation, which makes them used as sealants in many applications. However, current silicone sealants are specifically geared towards certain applications and materials, such as PVC. Although these compounds often offer good adhesion and corrosion resistance, they lack the versatility to perform effectively on a wide range of substrates. This lackThe shortage of multifunctional or universal silicone sealants is a bottleneck in the industry, because professional users often require different sealants for different materials and conditions.25 In addition, many of the current silicone compounds exhibit disadvantages, such as shrinkage during the curing process, which reduces the sealing capacity, and a relatively high hardness after curing, making them less resistant to expansion or contraction of the sealed surface. Furthermore, the use of these compounds often leads to significant amounts of waste. The present invention aims to provide a solution to at least one of these problems by developing a universal silicone sealant that is suitable for application on a wide range of substrates, without compromising the safety or quality of the seal. BE2024 / 5882 2 SUMMARY OF THE INVENTION The invention concerns, in one aspect, a silicone sealing compoundaccording to claim 1. Further preferred forms are set out in claims 2 to 24. The inventors of the present invention have found that the composition 5 provides a high-quality sealing composition that can be used on various substrates. In the second aspect, the present invention concerns a sealing kit according to claim 25. More specifically, the present invention concerns a sealing kit comprising a 10 silicone sealing composition according to one of claims 1-24 enclosed in an airtight packaging. Further preferred forms of the sealing kit are set out in claims 26 to 30. In the third aspect, the present invention concerns the use of a sealing kit according to claim 31. DETAILED DESCRIPTION The invention concerns a silicone sealing composition comprising several 20 adhesion promoters for multifunctional use. Unless otherwise defined, all terms used in the description of the invention, including technical and scientific terms, have the meaning asthey should be generally understood by the expert in the technical field of the invention. For a better assessment of the description of the invention, the following terms are explicitly explained. “A”, “the” and “the” in this document refer to both the singular and the plural unless context clearly implies otherwise. For example, “a segment” means one or more than a segment. When “approximately” or “around” is used in this document for a measurable quantity, a parameter, a duration or moment, and the like, variations are meant of + / - 20% or less, preferably + / - 10% or less, more preferably + / - 5% or less, even more preferably + / - 1% or less, and even more preferably + / - 0.1% or less than the quoted value, insofar as BE2024 / 5882 3 such variations apply to the described invention. However, this must be understood to mean that the value of the quantity for which the term “approximately” or “around” is used is itself specifically disclosed. The terms “comprising”, “comprising”, “consisting of”, “consisting of”, “provided with”,5“contain”, “containing”, “encompass”, “encompassing”, “content”, “containing” are synonyms and are inclusive or open terms that indicate the presence of what follows, and that do not exclude or prevent the presence of other components, features, elements, members, steps, known from or described in the standard technique.10 The citing of numerical intervals by the endpoints includes all integers, fractions and / or real numbers between the endpoints, including these endpoints. Silicone sealants are versatile materials used in built-up, automotive, and industrial applications due to their excellent flexibility, water resistance, and adhesion to various surfaces. These sealants form an elastic, durable layer that effectively protects against moisture, mold, and extreme temperatures, making them ideal for seams, joints, and surfaces that require long-term protection. The basis of the composition is often a polysiloxane polymer, which offers flexibility and elasticity.Crosslinkers are added to cure the material and form a strong network. Stabilizers, such as UV absorbers and antioxidants, protect the sealant against degradation by sunlight and oxygen, while fungicides prevent mold growth, which is particularly useful in humid environments such as bathrooms and kitchens.25 In a first aspect, the invention concerns a silicone sealing compound, the composition of which is obtained by mixing one or more polysiloxanes in a concentration of 25-90 wt%, one or more plasticizers in a concentration of 5-35 wt%, one or more crosslinkers in a concentration of 3-8 wt%, a mixture of adhesion promoters in a concentration of 0-3 wt% and a catalyst in a concentration of 0.01-0.3 wt%. In one formulation, the mixture of adhesion promoters comprises at least one primary aminosilane-based adhesion promoter, at least 3-35 aminopropyltriethoxysilane and at least propyltrimethoxysilane. BE2024 / 5882 4 The current state of the art shows a lack of multifunctional siliconesealing compounds that are effective on a wide range of substrates. Traditional sealants are often tailored to specific materials or conditions, making them of limited use in many situations. This leads to the need for different sealing products for diverse applications, which can be inefficient and costly. The unique composition of the present invention provides a strong, flexible, and durable sealing material suitable for various substrates. The mixture of adhesion promoters is a combination that promotes strong adhesion on both porous and non-porous substrates, as well as on organic and inorganic substrates. The mixture achieves improved initial adhesion without the need for extensive surface pretreatment, which further enhances the versatility of the silicone sealing compound. 15 The primary amino-silane-based adhesion promoter ensures strong initial bonding, even on difficult-to-bond surfaces such as certain plastics.2-Aminopropyltriethoxysilane offers specific interactions with both porous and non-porous materials, resulting in improved adhesion to, for example, glass, metals, and polymers. The addition of propyltrimethoxysilane further contributes to the universal applicability of the sealing compound, as it not only promotes adhesion but also forms a stable network that is resistant to moisture and other environmental influences. Adhesion promoters work together to create a balance between initial adhesion and durability, which is essential for a sealant that must perform consistently on various substrates. This mixture provides reliable results on diverse substrates. In one formulation, the silicone sealing compound comprises a mixture of adhesion promoters. This mixture contains between 10% and 50%, preferably between 20% and 50%, a propyltrimethoxysilane-based adhesion promoter. Propyltrimethoxysilane-based adhesion promoters are versatile chemical substances that are often used to create durable and strong bonds.between different substrates. Due to the trimethoxy groups, these adhesion promoters can react well with moisture from the air, which leads to the formation of silanol groups that adhere to inorganic surfaces such as glass and metals. At the same time, the propyl groups contribute to hydrophobic properties, making the adhesion layer water-repellent and very durable, even in humid environments. Because they have a relatively low viscosity, they are easy to process and mix into sealants. This makes it possible to achieve an even distribution of the adhesion promoter in the formulation, which is crucial for consistent adhesion performance. In addition, the propyltrimethoxysilane structure contributes to the formation of a strongly cross-linked network within the silicone sealant compound, which contributes to a long service life and chemical resistance to environmental factors such as UV light and weathering. In one formulation form, the propyltrimethoxysilane-based adhesion promotergekozenuitdegroepvan,maarnietgelimiteerdtot,propyltrimethoxysilaan,3-15 aminopropyltrimethoxysilaan,N-(beta-aminoethyl)-gamma- aminopropyltrimethoxysilaan,3-mercaptopropyltrimethoxysilaan,3- chloropropyltrimethoxysilaan,3-glycidoxypropyltrimethoxysilaan, methacryloxypropyltrimethoxysilaan,vinyltrimethoxysilaan,3- isocyanatopropyltrimethoxysilaan,3-butenyltrimethoxysilaan,2-(3,4-20 epoxycyclohexyl)ethyltrimethoxysilaan,3-propyltriethoxysilaan, phenyltrimethoxysilaan,4-methylphenyltrimethoxysilaan,3-dimethylethoxysilane (dmes),4-(chloromethyl)phenyltrimethoxysilaan,3-(trimethoxysilyl)propyl-2- methylpropene,2-butyltrimethoxysilaan,cyclohexyltrimethoxysilaan.Hetmengsel vanadhesiepromotorenkanéénofmeerpropyltrimethoxysilaan-gebaseerde25 adhesiepromotorenomvatten.Ineenvoorkeursvormomvathetmengselminstens N(beta-aminoethyl)gamma-aminopropltrimethoxysilaan. Verderomvathetmengselvanadhesiepromotorenvolgenseenuitvoeringsvorm3- aminopropyltriethoxysilaan(APTES).APTESiseenadhesiepromotordieeen30contains an amino group and has a silane base that can react with various surfaces. It belongs to the family of silane compounds, which consist of a silicon skeleton connected to organic groups via oxygen atoms. In the case of APTES, the amino group is present at the 3-position of the propyl group, which connects to the silane group via an ethoxy group.35 BE2024 / 5882 6 The most important property of APTES is the presence of the amino group, which can form strong bonds with a wide range of substrates, such as glass, metals, ceramics and some plastics. The amino group itself is very reactive, especially in the presence of water, and can form hydrogen bonds or covalent bonds with other materials.5 The ethoxy groups are hydrolyzable and can react with water to form silane groups. This makes it possible to attach the silane to the surface of a material and subsequently to form a crosslinking network upon drying or heating of the application. In a specific form, it comprises a mixture of adhesion promoters between 20% and 60%, preferably between 30%.and 60%, even more preferably between 40% and 60%, 3-aminopropyltriethoxysilane. In one formulation, the mixture of adhesion promoters between 5% and 20%, or preferably between 10% and 20%, comprises a primary aminosilane-based adhesion promoter. These are compounds containing a primary amino group coupled to a silane group via an organic bridge. The amino group reacts strongly with surfaces, especially those with high polarity, such as glass, metals, and plastics. At the same time, the silane group can adhere to the surface via hydrolysis, which increases the durability of the adhesion. In one formulation, the primary aminosilane-based adhesion promoter is selected from the group of, but not limited to, 3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropyltrichlorosilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, N-(3-aminopropyl)-3-aminopropyltrimethoxysilane, 3-(2-aminoethylamino)propyltrimethoxysilane,3-ureidopropyltriethoxysilane3-(aminopropylamino)propyltriethoxysilane,N-(2-aminoethyl)-3-aminopropyltrichlorosilaan,N-(2-aminoethyl)-N-(3-aminopropyl)-trimethoxysilaan, n-(3-aminopropyl)-N-(2-aminoethyl)propyltrimethoxysilaan,N-(3-aminopropyl)-N- (2-aminoethyl)-3-aminopropyltrimethoxysilaan,N-(4-aminobutyl)-3-30 aminopropyltrimethoxysilaan,3-(aminoethyl)-3-aminopropyltriethoxysilaan,3-(3- aminopropyl)-propyltrimethoxysilaan,3-[(2-aminoethyl)- amino]propyltrimethoxysilaan,3-(2-aminoethyl)-4-aminobutyltrimethoxysilaan,N- (2-aminoethyl)-N-(3-aminopropyl)-propyltrimethoxysilaan,3-(3-aminopropyl)-2- aminoethyltrimethoxysilaan,3-(aminopropyl)-N-(3-aminoethyl)-35 propyltrimethoxysilaan.Ineenvoorkeusvormisdeprimairaminosilaan-gebaseerde adhesiepromotorgekozenuitdegroepvan,maarnietgelimiteerdtot3- BE2024 / 5882 7 Aminopropyltrimethoxysilaan(APTMS),N-(2-aminoethyl)-3- aminopropyltriethoxysilaan,3-(trimethoxysilyl)propylamineen3- ureidopropyltriethoxysilaan. IneenverdereuitvoeringsvormomvathetmengselvanadhesiepromotorenN-(2-5 aminoethyl)-N'-(3-(trimethoxysilyl)propyl)ethyleendiamine.In one form, the mixture of adhesion promoters comprises a ratio of 1:1:2:4.5, with respectively a primary aminosilane-based adhesion promoter, N-(2-aminoethyl)-N'-(3-(trimethoxysilyl)propyl)ethylenediamine, propyltrimethoxysilane-based adhesion promoter, and 3-aminopropyltriethoxysilane. Polysiloxanes are polymers characterized by a unique Si-O-Si backbone (silicon-oxygen-silicon) with organic side chains, such as methyl or phenyl groups, that attach to the silicon atoms. This structure lends polysiloxanes their extraordinary properties, such as high flexibility, thermal stability, and resistance to water and chemicals. The combination of an inorganic silicon-oxygen chain with organic groups gives them the advantages of both inorganic and organic materials. 20 Sealants offer polysiloxanes excellent elastic and sealing properties. Thanks to their flexibility, they continue to perform effectively under tension and stretch without tearing or losing their adhesion. This makes them ideal forapplications in dynamic joints and connections where movement or vibration occurs, such as in built-in materials and automotive applications. Moreover, polysiloxanes naturally repel water and allow little moisture to pass through, making them an effective barrier in humid environments. Their thermal stability makes them resistant to high and low temperatures, which is essential for applications in extreme environments. 30 In sealing compounds, different types of polysiloxanes can be used, each with its own properties. Preferably, polysiloxanes have a viscosity between 20,000 cps and 350,000 cps, preferably between 50,000 cps and 300,000 cps, more preferably between 100,000 cps and 250,000 cps, and even more preferably between 150,000 cps and 200,000 cps.35 BE2024 / 5882 8 In a specific form, the silicone sealing compound comprises polysiloxanes chosen from the group of α,ω-dihydroxypolydimethylsiloxane, aminoethyl-aminopropylfunctionalpolydimethylsiloxane, vinylpolydimethylsiloxane, and phenylpolydimethylsiloxane. Preferably, the silicone sealing compound comprisesα,ω-dihydroxypolydimethylsiloxane.5 A silicone sealing compound according to the present invention contains all components for curing, making it simple and quick to use. Thanks to the very specific composition perfected by the inventors, a high-quality sealing compound with an oxime10 crosslinker is obtained. A silicone sealant compound according to the current invention has the advantage that little to no volume loss occurs during the curing process. With classic sealant compounds, cracks and / or damage occur in the silicone sealant compound and between the silicone sealant compound and the material to which the silicone sealant compound is applied during the curing of the silicone sealant compound. As a result, the silicone sealant compound loses uniformity and compactness, resulting in an inefficient sealing of the sealing target. Furthermore, this compound is multifunctional and can be used on a widea range of substrates can be applied. In a silicone sealing compound, crosslinkers provide the curing process, whereby the material changes from a liquid or paste-like form25 into a solid, elastic structure. Crosslinkers react with moisture from the air or other active components in the compound, which leads to crosslinking between the polysiloxane chains. This crosslinking process creates a stable and flexible network that is resistant to temperature fluctuations, moisture, and other environmental factors.30 In a specific form, the silicone sealing compound contains crosslinkers with an oxime group. Preferably, the crosslinker exhibits a chemical similarity to the polysiloxane used. These crosslinkers have a molecular weight between 301.5 g / mol and 405.6 g / mol. The molecular weight is measured via a theoretical35 calculation based on the molecular structure of the crosslinker. BE2024 / 5882 9 In a single form, the silicone sealing compound according to the present invention comprises one or more crosslinkers selected from the group of methylethylketoxime (MEKO), methylisobutylketoxime (MIBKO), diethylketoxime, cyclohexanoneoxime, acetoneoxime, pentanoneoxime, methylethylketoxime silicone crosslinker, preferably pentanoneoxime.5 In another formulation, the silicone sealant composition comprises a crosslinker with an alkoxy group. This group contains a reactive alkyl group that can interact with moisture in the air and thereby cure the polysiloxane. Preferably, the crosslinker exhibits chemical similarities to the polysiloxane used. These crosslinkers have a molecular weight between 106 g / mol and 208 g / mol. In a specific form, the silicone sealant compound according to the present invention comprises one or more crosslinkers selected from the group of methyltrimethoxysilane, methyltriethoxysilane, vinyltrimethoxysilane, isobutyltrimethoxysilane and tetraethoxysilane, or any combinations thereof. To keep the silicone sealant compound manageable during the manufacturing process and for the use of the compound, plasticizers may be added.be added to the composition. This promotes the plasticity of the composition, which ensures a malleable, paste-like substance before the composition hardens. In a specific form, the silicone sealant composition contains one or more organic plasticizers. Organic plasticizers have better biodegradability, are less harmful to the environment and health, and induce fewer chemical reactions than inorganic plasticizers. By adding one or more organic plasticizers to a silicone sealant composition, a smaller amount of inorganic plasticizers needs to be added. 30 In a preferred design, a silicone sealant composition according to the present invention contains one or more plasticizers selected from the group of, but not limited to, C4 to C8 alkyl terephthalate compounds, including di-n-butyl terephthalate and di(2-ethylhexyl) terephthalate, glycerol triacetate (triacetin), 2,2,4-trimethyl-1,3-pentanediol diisobutyrate, phthalate esters (e.g. dioctyl phthalate, di-352-ethylhexyl phthalate,diisophthalate,diisononyl phthalate,di-lineair nonyl phthalate,di-lineair nonyl,undecyl phthalate,di-linear undecyl phthalate,diundecyl phthalate,diisodecyl phthalate, BE2024 / 5882 10 C6-C10straight chain gephthalate,C7lineairphthalate,C9lineairphthalate,C11lineairphthalate,ditridecylphthalate,undecyldodecylphthalate,di(2-propylheptylphthalate)nonylundecyl phthalate,texanol benzyl phthalate,polyester phthalate,diallyl phthalate,n-butyl phthalyl-n-butyl glycosate,dicapryl phthalate,butylcyclohexyl phthalate,dicyclohexyl phthalate,butyloctyl phthalate,dioctylate,di-2-ethylhexyl phthalate,diisonyl phthalate,5 diisodecylate,ditridecylate,dibutoxyethylate,dibutoxyethoxyadylate,di(n-octyl,undecyl)adiate,polyesteradipate,polyglycoladipate, trioctyltrimellitate,tri-2-ethylhexyltrimellitate,triisooctyltrimellitate,triisonyl trimellitate trimellitate,triisodecyl trimellitate,tri-n-hexyl trimellitate,dioctylazylate,di-2- ethylhexylglutarate,di-2-ethylhexylsebecate,dibutyl-sebecate,dibutoxyethyl10sebecate, triethyl citrate, acetyltriethyl citrate, tri-n-butyl citrate, acetyltri-n-hexyl citrate, n-butyl-tri-n-hexyl citrate, isodecyl benzoate, diethylene glycol dibenzoate, dipropylene glycol dibenzoate, triethylene glycol dibenzoate, 1,4-cyclohexanedimethanol dibenzoate, 2,2,4-trimethyl-1,3-dibenzoate pentanediol, 2,2-dimethyl-1,3-propanediol dibenzoate, C10-C21 alkane phenol esters15 of alkylsulfonic acid phenol esters, acetic acid reaction products with fully hydrogenated castor oil, pentaerythritol tetrabenzoate, glycerol tribenzoate, polypropylene glycol dibenzoate, triaryl phosphates, diisononylcyclohexane1,2-dicarboxylate, polymers of adipic acid / phthalates / adipates / sebecates / with glycolene and often acid- terminated,butylbenzyl phthalate,alkylbenzyl phthalate,C7-C9 butyl phthalate,20 diethylene glycol dibenzoate,dipropylene glycol dibenzoate,2-ethylhexyl benzoate,C9 benzoates,C10 benzoates,texanol benzoate,ethylene glycol dibenzoate, propylene glycol dibenzoate,triethylene glycol dibenzoate,di-heptyl phthalate,dihexyl phthalate, dimethyl phthalate, diethyl phthalate, dibutyl phthalate, and diisobutyl phthalate, α,ω-trimethylsilylpolydimethylsiloxane, calcium stearate, hydrocarbons and alkyl benzyl or any combination of the foregoing. The silicone sealant composition most preferably comprises one or more plasticizers selected from silicone oil comprising non-reactive polymers and hydrogenated petroleum distillates with a carbon chain comprising 11 to 25 carbon atoms. Silicone sealants may contain adhesion promoters. Adhesion promoters are additives that improve the adhesion between the sealant composition and various substrates, such as glass, metal, plastic, or concrete. Without adhesion promoters, the silicone may have difficulty adhering firmly to surfaces, especially under challenging conditions such as moisture, temperature fluctuations, and mechanical stress. BE2024 / 5882 11 Adhesion promoters form a bridge between the silicon matrix and the substrate. They typically have reactive groups that interact with both the substrate and thecan bind polysiloxane, thereby enabling better adhesion. By creating a stronger interface, they improve the mechanical bonds and extend the service life of the seal under stressful conditions. In one form, the silicone sealant composition comprises a mixture of adhesion promoters; preferably, said mixture comprises at least one aminosilane-based adhesion promoter. Aminosilane-based adhesion promoters have a hydrophilic group that reacts with the substrate and an organic group that can form covalent or secondary bonds with the silicone chains. The curing of the silicone sealant composition is a chemical process that can be accelerated by a catalyst. Catalysts accelerate the reaction that converts the liquid, paste-like silicone into a firm, elastic end product. They ensure, in fact, that the crosslinkers react faster and more efficiently with the polysiloxanes. This causes crosslinking to occur faster, which leads to a stable and elastic network that is resistant to mechanical stress, foughttemperature fluctuations. Without catalysts, curing would be slower or incomplete, which would affect the performance of the sealant. In one formulation, the catalyst is selected from the group of, but not limited to, dibutyltin dilaurate (dbtdl), ethanol (tin oxide), tetrabutyltitanate, dioctyltin oxide, tetramethyldivinyltin, platinum catalyst (e.g. Karstedt catalyst), divinylsilane, ethyltriacetoxysilane, methyltriacetoxysilane, alkyl titanates (e.g. tetrabutyltitanate), zirconium acetylacetonate, amine catalysts (e.g. trimethylamine), cobalt oxide, chromium oxide, cyclopentadienyl titanium compounds, borate-enaluminate-based catalysts. In a preferred form, the silicone sealant composition includes a dioctyltin oxide-based catalyst. Furthermore, a sealing compound may optionally include one or more stabilizers. These additives improve the stability of the product, both during storage and during use. They help maintain the physical properties.chemical properties of the sealants and offer protection against degrading influences such as UV radiation, heat, moisture and oxidation. The function of stabilizers is multifaceted. They retard the degradation of polysiloxanes due to environmental factors, which extends the service life of the finished product. In addition, they improve processing by ensuring that the composition remains homogeneous BE2024 / 5882 12 during production, thereby guaranteeing consistent performance and quality. Stabilizers must be chemically inert, which means that they must be compatible with the other ingredients in the formulations and must not cause any undesirable reactions. They are often effective at low concentrations, meaning that only small amounts are needed to have a significant impact on the stability of the product. One of the functions of stabilizers is to slow down the curing process of a silicone sealant compound. Because a silicone sealant compound contains one or more stabilizers in a specific formincludes, preventing the silicone sealant from hardening faster than desired. In addition, the sealant can be processed more easily and a user has more time to apply the sealant to one or more sealing targets, or possibly make corrections to one or more recently applied silicone sealants. In a 15 embodiment, stabilizers are selected from the group of, but not limited to, UV-absorbing benzotriazoles, hindered amine light stabilizers (HALS), butylhydroxytoluene (BHT), phenolic antioxidants, phosphites, organophosphites, zinc oxide, magnesium oxide, titanium dioxide, organotin compounds, zirconium carboxylate, calcium carbonate, phenolic-hindered antioxidants, 20 triphenyl phosphite, distearylpentaerythritol diphosphite, dialkyl phosphites, hindered phenol stabilizers, sulfur-containing antioxidants. The stabilizers are preferably selected from the group of vinyl acetate, ethylene, titanium dioxide.In one formulation, the silicone sealant composition contains chalk. Chalk is added to silicone sealants as a filler for various reasons that both improve physical properties and optimize production and related costs. Chemically, chalk is a form of calcium carbonate (CaCO3) and plays a role in increasing the stability, consistency, and durability of the sealing compound.30 Chalk acts as a reinforcing agent, as it contributes to the mechanical strength of the curing material. As a result, the seal is more resistant to cracking, scratching, and wear. Additionally, chalk has a filling function. It helps to increase the volume of the compound without changing the core components of the35 formulation, which can be beneficial for reducing costs. By adding a relatively inexpensive filler such as chalk, the formulation BE2024 / 5882 13 can become more economical without compromising the performance or quality of the sealant. Finally, chalk also contributes to resistance to UV-radiation, since CaCO3 is UV-stable, helps to ensure the colorfastness and durability of the sealant. In one formulation, the silicone sealant composition contains 0 wt% to 30 wt% chalk.5 In one formulation, the silicone sealant composition contains one or more fungicides. The provision of fungicides in a silicone sealant composition according to the present invention prevents fungi and / or associated microorganisms from colonizing the silicone sealant composition. In this way10 it is avoided that silicone sealants and / or the sealing target are contaminated and possibly damaged by the aforementioned microorganisms. In one formulation, the fungicide is chosen from the group of, but not limited to, zinc pyrithione, diiodomethyl-p-tolylsulfone (DIT), octylisothiazolinone (OIT), 2-n-octyl-4-isothiazolin-3-one, N-(trichloro-15-methylthio)phthalimide (Folpet), benzisothiazolinone (BIT), chloromethylisothiazolinone (CMIT), propiconazole, iodocarb, terbutryn. In a preferred form, the fungicide is chosen from OIT and / or CMIT.In one form, the silicone sealant composition contains fumed silica. In a preferred form, the silicone sealant composition contains 3 wt% to 10 wt% fumed silica. Adding a quantity of fumed silica increases the viscosity of the silicone sealant composition in such a way that it does not run after application, but remains sufficiently fluid to efficiently seal and / or cover rough and / or uneven sealing targets. This substantially simplifies the application of a silicone sealant composition. In one version, the silicone sealant compound optionally includes one or more color powders. This addition induces a coloring of the compounds and allows for meeting aesthetic wishes and / or needs for the use of the silicone sealant compound. The color powder can be chosen from the group of, but not limited to, transparent, red, fire red, wine red, blue, dove blue, pool blue, gentian blue, yellow, green, moss green, fern green, orange, purple, pink, brown, black, jet black, white, off-white, clear.aluminium,aluminium,grey,greyaluminium,inox,pearlescent grey,turquoise, beige,magenta,lime,cyan, indigo,olive green,gold,silver,lavender,coral,peach, BE2024 / 5882 14 khaki,emerald green,navy blue,burgundy,mint green,terracotta,sepia, anthracite,cream,fuchsia,cerulean,aubergine,petrol,sanguine, sapphire, dark red,jasmine,andlemon.Furthermore, each mentioned colour may also comprise a matte variant. In one form, the composition is colourless and therefore contains no colour powder.5 In one form, the silicone sealant composition shows a weight loss of at most 20%, preferably at most 15%, even more at preferably exhibits at most 10% measured according to ISO standard 10563. This low weight loss offers several advantages. Firstly, a limited 10% weight loss contributes to the excellent stability of the composition during and after curing, which extends the service life of the sealant. It also helps maintain mechanical properties such as flexibility and adhesion, evenunder prolonged exposure to stressful environments. Additionally, it reduces the risk of shrinkage, which prevents cracks and detachments and promotes the overall sealing quality. Finally, a composition with minimal weight loss is also more resistant to the evaporation of volatile substances, resulting in a safe and durable application without harmful emissions. Silicone sealants can exhibit hardness. Hardness is the resistance a material offers to permanent deformation. A sealant with low hardness is more flexible and elastic, whereas a silicone sealant with higher hardness is stiffer and offers more resistance to abrasion and extrusion. In a specific form, the silicone sealant exhibits a Shore A hardness between 5-40. Thanks to this hardness, the compound exhibits flexibility to accommodate fluctuations in certain parameters of a sealing target, such as size, depth, surface area, or volume. The flexibility resulting from the low hardness allowsthe composition, according to the relevant design form, is designed to expand to a limited extent and / or contract if necessary. This ensures that optimal sealing of the sealing target is maintained in the event that one or more parameters of the sealing target alternate over time. In a preferred design of a silicone sealing compound according to the current invention, the silicone sealing compound exhibits a modulus of 0.1-1 N / m² measured according to ISO standard 8339. BE2024 / 5882 15 The time until skinning of a silicone sealant provides an indication of the curing rate of the silicone sealant. In a preferred version of a silicone sealant according to the present invention, the silicone sealant exhibits skinning within less than 35 minutes at 23°C and 50% relative humidity. This has the advantage that the compound cures relatively quickly, but that a user still has sufficient time to make any corrections to, for example, an incorrect application.applied silicone sealing compound. 10 In a second aspect, the invention concerns a method for producing a silicone sealing compound as described above. This method involves mixing one or more plasticizers selected from the group of, but not limited to, C4 to C8 alkyl terephthalate compounds, including di-n-butyl terephthalate and di(2-ethylhexyl) terephthalate, glycerol triacetate (triacetin), 2,2,4-15 trimethyl-1,3-pentanediol diisobutyrate, phthalate esters (for example, dioctyl phthalate, di-2-ethylhexyl phthalate, diisophthalate, diisononyl phthalate, di-linear nonyl phthalate, di-linear nonyl phthalate, di-linear undecyl phthalate, di-linear undecyl phthalate, diisodecyl phthalate, C6-C10 straight-chain phthalates, C7 linear phthalate, C9 linear phthalate, C11 linear phthalate, dimethyldecyl phthalate, undecyldodecyl phthalate, di(2-propylheptyl phthalate)nonylundecyl20 phthalate, texanolbenzyl phthalate, polyester phthalate, dialyl phthalate, n-butylphthalyl-n-butyl glycosate, dicapryl phthalate, butylcyclohexyl phthalate, dicyclohexyl phthalate, butyloctylphthalate, dioctyl adipate, di-2-ethylhexyl adipate, diisonyl adipate, diisoadipate, diisodecyl adipate, ditridecyl adipate, dibutoxyethyl adipate, dibutoxyethoxy adipate, di(n-octyl,undecyl) adipate, polyester adipate, polyglycoladipates, 25 trioctyl trimellitate, tri-2-ethylhexyl trimellitate, triisooctyl trimellitate, triisononyl trimellitate, triisodecyl trimellitate, tri-n-hexyl trimellitate, dioctylazelate, di-2- ethylhexyl glutarate, di-2-ethylhexyl sebecate, dibutyl-sebecate, dibutoxyethyl sebecate, triethyl citrate, acetyl triethyl citrate, tri-n-butyl citrate, acetyl triethyl citrate, butylcitraat,acetyltri-n-hexylcitraat,n-butyl-tri-n-hexylcitraat,isodecylbenzoaat,30 diethyleenglycoldibenzoaat,dipropyleneglycoldibenzoaat,triethyleenglycol dibenzoaat1,4-cyclohexandimethanoldibenzoaat,2,2,4-trimethyl-1,3dibenzoaat pentaandiol,2,2-dimethyl-1,3-propaandioldibenzoaat,C10-C21alkaanfenolesters ofalkylsulfonzuurfenolesters,azijnzuurreactieproductenmetvolledigverhardecastor oil, pentaerythritol tetrabenzoate, glycerol tribenzoate, polypropylene glycol35 dibenzoate, triaryl phosphates, diisononylcyclohexane1,2-dicarboxylate, polymers of adipic acid / phthalates / adipates / sebecates / with glycols and often acid- BE2024 / 5882 16 terminated, butylbenzyl phthalate, alkylbenzyl phthalate, C7-C9 butyl phthalate, diethylene glycol dibenzoate, dipropylene glycol dibenzoate, 2-ethylhexyl benzoate, C9 benzoates, C10 benzoates, texalanol benzoate, ethylene glycol dibenzoate, propylene glycol dibenzoate, triethylene glycol dibenzoate, di-heptyl phthalate, dihexyl phthalate, dimethyl phthalate, diethyl phthalate, dibutyl phthalate, and diisobutyl phthalate, or 5 any combination of the foregoing. Most preferably, the oxime-type silicone sealant composition comprises one or more plasticizers selected from silicone oil comprising non-reactive polymers and hydrogenated petroleum distillates with a carbon chain comprising 11 to 25 carbon atoms.10 Furthermore, the method for producing a silicone includessealing compound the addition of one or more oxime crosslinkers, selected from the group of, but not limited to, ketoxime (MEKO), methyl isobutylketoxime (MIBKO), diethylketoxime, cyclohexanoneoxime, acetoneoxime, methylethylketoxime silicone crosslinker, or any combinations of the foregoing. In one execution form, the method involves the addition of one or more stabilizers during the mixing of one or more polysiloxanes and one or more plasticizers. By adding one or more stabilizers at the start of the method, the hardening process of the silicone sealing compound is delayed. This has the advantage that the silicone sealing compound can be processed more easily and prevents the silicone sealing compound from hardening during the production process. Furthermore, the method involves the addition of one or more refungicides during the mixing of one or more polysiloxanes and one or more plasticizers. Addition of one or more refungicides at the start of the production processhas the advantage that potentially present molds do not get a chance to colonize the silicone sealing compound during the production process. In this way, it is avoided that produced quantities of silicone sealing compounds are contaminated and wasted during the production process. 35 In a specific form, the method involves adding and mixing in fumed silica after adding one or more crosslinkers. Fumed silica increases the viscosity of a silicone sealing compound, which ensures that the compound is easier to process and handle during the production process. BE2024 / 5882 17 In a further form of execution, the method optionally includes the addition and mixing in of one or more color powders after the addition of one or more crosslinkers. By adding one or more color powders, it is possible to produce a large, uncolored batch of silicone sealing compound, which is subsequently divided into two or more sub-batches to which one or morecolor powders can be added. This makes it possible to produce various colored silicone sealing compounds via a single production process. This, in turn, has the advantage that production is faster, more efficient, and cheaper. In another form, no color powder is added, and an uncolored sealing compound is retained. In one third aspect, the present invention concerns the use of a silicone sealing compound as described above. The said sealing compound is suitable for sealing spaces between one or more substrates, such as joints, where the spaces have a width between 1 mm and 50 mm. The sealing compound is suitable for use on a substrate chosen from wood, concrete, rubber, glass, metal, (natural) stone, ceramics, porcelain, PVC, nylon, thermosets, thermoplastics, and / or elastomers. Thanks to the combination of adhesion promoters containing at least one primary amino silane-based adhesion promoter, at least 3 aminopropyltriethoxysilanesContaining at least propyltrimethoxysilane, the silicone sealant compound can chemically bond with a wide range of substrates. The silicone sealant compound can be used for sealing connection and expansion joints in facades, interior walls, or between frames and walls. Furthermore, it can be used as a natural stone sealant for sills, worktops, window sills, tiles, curb stones made of bluestone, marble, granite, or other (natural) stone. The compound provides a watertight seal, making it suitable for sealing joints around swimming pools and damp areas, such as bathrooms, kitchens, and cold rooms. The compound is suitable for indoor and outdoor use, ideal for expansion joints in walls, glazing, and partition walls. BE2024 / 5882 18 In a fourth aspect, the present invention concerns a sealing kit comprising a silicone sealing compound of the oxime type as described above, enclosed in an airtight packaging. An airtight packaging preventsA silicone sealant compound according to the present invention hardens before this is desired and extends the shelf life of the compound. Furthermore, its transport and storage are substantially simplified by the airtight packaging. In one design form, the airtight packaging is a cylindrical polyethylene, polypropylene, or polyamide tube. The present invention exhibits little to no adhesion to these polymers, making the silicone sealant compound easy to remove from such a tube. The tube can be cylindrical in shape, so that it contains no irregularities, thereby minimizing the amount of residual silicone remaining behind. In one design form, the cylindrical tube contains a nozzle and a plunger. This allows a user to remove a silicone sealant compound from a tube by moving the plunger in the direction of the nozzle. In one embodiment, the seal comprises a hand gun. A hand gun 20 substantially simplifies the movement of a slidingbottom element towards the nozzle of the cartridge. The hand gun simplifies the dispensing of a silicone sealant compound from the cartridge in question. A known problem in the state of the art is the large amount of waste when one or more silicone sealants are used on a frequent basis. In one form, airtight packaging is a film. This film can be stored compactly after using up a sealant according to the relevant form. In this way, the amount of waste is limited. An additional advantage of film as airtight packaging is that less storage space is required for stocking the relevant sealant. As a result, a larger quantity of sealants can be stored, or a smaller location is needed to store the same number of sealants. In a further design, the sealing kit comprises a foil-connectable nozzle.35 This has the advantage that a silicone sealing compound can be easily applied directly from the foil packaging to the sealing target.BE2024 / 5882 19 In what follows, the invention is described by means of non-limiting examples that illustrate the invention and that are not intended or should not be interpreted to limit the scope of the invention. 5 EXAMPLES EXAMPLE 1 A silicone sealant compound was produced as follows: mix 25-90 wt% polysiloxanes with 10-30 wt% plasticizer and 0.1-0.9 wt% stabilizer. Then add 3-5 wt% crosslinker, after which mix in 4-9 wt% fumedsilica. Subsequently add 1-1.5 wt% mixture of adhesion promoters and mix. Finally, add 0.05-1 wt% catalyst. The mixture of adhesion promoters comprises 0.24 wt% propyltrimethoxysilane-based adhesion promoter, 0.2 wt% primary aminosilane, 0.38 wt% N(beta-15 aminoethyl)gamma-aminopropyltrimethoxysilanes and 0.91 wt% 3-aminopropyltriethoxysilane. The silicone sealant compound as shown below was tested on natural stone, glass, and concrete substrates. This was compared with a 20 silicone sealant compound that had the same adhesion promoters in anotherratio, namely 1:3:1, comprises. The silicone sealant compound as described in this example had better adhesion to the substrate compared to the other compound. Particularly on PVC and concrete, the 1:3:1 ratio resulted in lower quality adhesion.25 The silicone sealant in question comprises the following ingredients: Ingredient wt% Polysiloxanes 25-90 Plasticizer 10-30 Stabilizer 0.1-0.9 Alkoxy crosslinker 3-5 Fumed silica 4-9 Adhesion promoter 1-1.5 Catalyst 0.05-0.1 This silicone sealant compound was tested on the following parameters. BE2024 / 5882 20 Parameter Result Volume loss (%)[ISO10563]5 Weight loss (%)[ISO10563]2 ShoreA hardhead[ISO868]20 Modulus at 100% (N / mm²)[ISO8339]0.34 Skinning at 23°C and 50% RH (min)15 Curing speed after 24 hours at 23°C and 50% RH (mm) 2.5 BE2024 / 5882