filler

A calcium carbonate-based filler without acrylates addresses environmental and health concerns by providing mold-resistant, elastic connections for construction, enhancing adhesion and durability.

DE202025102052U1Active Publication Date: 2025-06-12THORSTEN BACKE UG (HAFTUNGSBESCHRÄNKT)
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Patent Information

Application Number
DE202025102052
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2025-06-12
Estimated Expiration
2035-04-30

AI Technical Summary

Technical Problem

Existing fillers for construction applications often contain acrylates, which can be harmful to the environment and human health, and lack mold resistance and elastic connection properties for window integrations.

Method used

A filler composition based on calcium carbonate, marble flour, calcium hydroxide, cellulose, and borate, free of acrylates, with a pH value of at least 8, providing improved adhesion, stability, and mold resistance, tailored for various construction needs.

Benefits of technology

The filler offers enhanced adhesion, mold resistance, and elastic connection, promoting sustainable construction practices while ensuring high-quality, durable, and aesthetically pleasing surfaces.

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Abstract

Putty comprising calcium carbonate, wherein the putty does not contain acrylate.
Need to check novelty before this filing date? Find Prior Art

Description

The present invention relates to a filler mass according to claim 1.Prior ArtTrowelling compounds are important materials for compensating surfaces, for filling cracks or holes and for preparing walls for further applications such as painting or walling trowelling compounds typically consist of a mixture of different powder and binder materials which form a smooth and planar layer when applied to a surface.Presentation of the Invention: Object, Solution, AdvantagesThe object of the present invention is to provide an improved joint material which is resistant to mold and nevertheless ensures the necessary elastic connection in the case of window integrations and other connection joints.The invention relates to a filling composition which comprises calcium carbonate as a beneficial constituent and is completely free of acrylates. Traditionally, prior art filler compositions contain acrylates which, as polymers, can increase the bond strength and flexibility of the composition. The present invention contemplates the replacement of acrylates for various reasons such as environmental compatibility or improved performance. Thus, the present invention provides a composition which is an environmentally friendly alternative to conventional trowelling compositions containing acrylates.Calcium carbonate provides stability, a particular whiteness and advantageous processing properties. In the context of the invention, the formulation of the filler composition is based on calcium carbonate without acrylates in order to support both ecological and health advantages.The absence of acrylates in the filler composition can reduce potentially harmful emissions and make the product more comfortable for indoor use, particularly in less aerated areas. In addition, the fillable composition, owing to its mineral base, offers good adhesion to various substrates, simple and uniform application and pleasant grinding behavior after drying.In addition to calcium carbonate, further constituents can be incorporated in order to improve specific properties of the filler composition, such as, for example, the drying time, the viscosity or the colour. The composition can be chosen such that it can be useful in different fields of application, whether in medium to large-area wall processing, in the filling of cracks or in the compensation of unevennesses. The filler can be flexibly adapted to the respective technical requirements for construction, without recourse to synthetic binders such as acrylates, as a result of which it emerges as a promising and lasting option in the construction industry.The filler is formulated such that the calcium carbonate content is in a range of 20 to 70 weight percent. This concentration of calcium carbonate is chosen in order to have a favourable influence on the mechanical and optical properties of the filler. This composition provides a stable and efficient mass which allows processing facilitations and an aesthetically pleasing end result. Furthermore, the filling compound can be filled easily and without problems in cartridges. Thus, it can be processed particularly well and efficiently as a connecting-joint packer.Calcium carbonate, as the major component of the filler composition, serves as a primary filler which helps to improve the structural integrity and whiteness of the composition. Within the defined weight fraction, calcium carbonate results in the composition having the appropriate density to produce smooth surfaces and effectively balance out asperities. The range of calcium carbonate chosen also allows for variations in the individual requirements of the specific field of application. A higher concentration may be preferred for applications where increased fillability and stability is desired, while lower concentrations provide easier processability for finer or detailed operations. In addition, the stated weight fraction gives a balanced balance between the bondability and the surface structure, so that the filler composition can easily be applied and individually adjusted. This filler mass represents a promising solution which takes account of environmental aspects and at the same time emphasize the advantages of calcium carbonate for various structural tasks.The trowelling composition is designed to avoid organic pesticides. This formulation choice reflects awareness of health and environmental compliance by reducing potential pollutant sources. Application without organic pesticides allows safe use in construction and renovating operations, especially indoors or sensitive environments where air quality may be important.The lack of organic pesticides can reduce the risk of allergic reactions or health hazards to users and occupants and allows for sustained construction practice by minimizing the release of chemical residues that could have environmental effects.In addition, this composition includes compatibility and safety standards for processors and end users while preserving the physical properties of the trowelling composition. The composition retains its functionality with respect to adhesion, processability and drying behavior by the targeted use of constituents without health risks.Without the inclusion of organic pesticides, the trowelling composition is useful for a wide variety of environments, such as in residential buildings, schools or public premises where healthy habitats are advantageous. This formulation can make it a generous choice in the application and processing of engineering products.The filling compound is formulated such that it can have a pH of at least 8, wherein a pH of at least 9.5 and in the best case of at least 11 can be achieved. Such a pH could help render the surface resistant to microorganisms and promote extended shelf life of the mass.A higher pH may also be helpful to act against mold formation and bacterial developments and could also aid in the stability of the composition over extended periods of time. This alkaline property may be advantageous for use in interior and exterior finishing by strengthening the resistance of the treated surfaces.Furthermore, the increased pH can influence the processing and application of the filler by improving the adhesion and possibly allowing favorable drying times. The mass remains flexible at higher pH values and exhibits improved grinding performance which can facilitate finishing.By balancing the pH value with the other advantageous components of the filler, a high-quality solution for versatile applications could be created, which can meet the modern technical requirements for construction and, in addition, could promising long-term resistance to external influences.The filling compound comprises marble flour as a supplementary component which improves the structural and aesthetic properties of the composition. Because of its fine grain, marble flour has proved to be advantageous for achieving a smooth and refined surface in the filler composition. The incorporation of marble flour can additionally increase the mechanical strength of the composition and enable improved processability. Marble flour is understood to be fine powder obtained by grinding marble (i.e. calcium carbonate in crystalline form). It contains mainly calcium carbonate, but may also contain small amounts of other minerals.Marble flour offers a higher density which assists in uniform and lasting surface quality when compensating for unevennesses and when filling cracks. In addition, the light reflective properties of the marble flour contribute to an improved visual appearance, making the trowelling composition particularly suitable for decorative applications or demanding renovating.The abrasion resistance of the filler mass is also positively influenced by addition of marble flour, as a result of which the machined surfaces are more resistant to common loads. This property makes the mass versatile enough for use in various environments, such as interior and exterior wall and ceiling processing.A calcium carbonate and marble flour interaction could eventually provide a pleasing relationship between processability and performance so that the trowelling composition is easier to apply and yet retains high standards in terms of durability and strength of the machined surfaces.The filler mass may comprise calcium hydroxide, which may be present in a preferred amount of between 10 and 20 percent by weight. Calcium hydroxide is recognized for its basic properties and its ability to improve the microstructure of the filler. The integration of calcium hydroxide can provide additional strength and stability to the mass, which could be advantageous in wall and top surface applications.The alkalinity of the calcium hydroxide can provide enhanced protection against microbial influence whereby the mass could be better protected against mould formation and biodegradation processes. This contributes to durability and maintenance of the quality of the machined surfaces and may help maintain a uniformly durable layer that could positively affect residential climate.The calcium hydroxide content can also affect the drying behavior of the trowelling composition by promoting more rapid curing and reducing the processing time that may be required for revisions. In addition, it can assist in the adhesion of the composition to various substrates, which can enable application to a wide range of surfaces.In combination with other components such as marble flour or calcium carbonate, calcium hydroxide can support the synergistic effects which can lead to a powerful filler mass which meets the requirements of modern construction and restoration technology and can take account of ecological and health aspects in the process.The trowelling composition is designed to contain cellulose, an ingredient which contributes to the improvement of the physical properties of the composition. Cellulose, accepted for its naturally occurring fibers, provides increased robustness and workability of the filler mass and can aid in the consistency and stability of the formula. It allows for increased adhesion and bonding within the composition and also offers a more appealing viscosity, which can promote easy application of the composition to various surfaces.In addition, the addition of cellulose can make the troweling mass more supple and reduce the occurrence of cracking during drying, resulting in a uniform and smooth surface. Cellulose can help to regulate the moisture during the drying process, whereby the mass cures more slowly and thus contributes to a permanent coating.Cellulose is a natural raw material which assists the environmental compatibility of the filler and keeps it free from synthetic binders such as acrylates. This property makes the filling compound suitable for applications in lasting construction projects and in renovatings in which ecological aspects are advantageous.In addition to other components such as calcium carbonate and marble flour, cellulose can increase the overall efficiency of the mass in terms of strength, stability and user-friendliness, thereby contributing to the filling mass meeting the standards of modern building practices and aesthetic requirements.The filler composition may be enriched with borate, especially sodium borate, to optimize the functional properties of the composition. Sodium borate may be beneficial in the formulation by being useful as a pH stabilizer and inhibitor against microbial infestation. The addition of borate may help to extend the shelf life and durability of the trowelling composition, which could protect the machined surfaces from external influences over a prolonged period of time.In addition, borate could positively affect the fire resistance of the composition and thus provide additional safety in structural applications. By stabilizing the structure of the mass, borate could also be helpful to minimize cracking and increase strength, which could be particularly advantageous for use on large surfaces.Sodium borate, as a salt of boric acid, is known for its many properties which may make it popular as an additive. It acts effectively in the binder matrix of the filler and can aid in a uniform appearance and extended processing time.The interaction of borate with other components such as cellulose, calcium carbonate and marble flour could allow the design of a trowelling composition which is both environmentally safe and powerful and meets the requirements for durable and durable construction and renovating projects. This composition offers an attractive possibility to develop innovative building products which take into account practical advantages and safety aspects equally.The terms borax and tinkal are alternative names for borate which indicate the historical and geographical origin of the substance. These terms may be relevant not only to their chemical potential, but also to their role in the cultural and economic development of their original regions - predominantly in Turkei, California and Tibet.Borax can be helpful in various fields because, in addition to its chemical properties, it also offers advantages in storage and handling. Due to its comparatively low toxicity and good solubility, it may be easier to process and safer in contact with other materials. As a mineral substance, which is both natural and can be synthesized, borax offers flexible options for integration into different productions and applications.In the context of the trowelling composition, the use of borax can contribute to the ecological compatibility of the product, as it may have less toxic effects on the environment and therefore it is considered a more environmentally friendly alternative to other chemical additives. The mineral base of borax, combined with its ability to act in the formulation of the trowelling mass, provides that the final products conform to current standards for permanent building.The filler comprises water, optionally in an amount between 10 and 20 weight percent. Water provides improved processability and application of the filler by allowing the desired consistency and viscosity. The defined water content supports easy application and uniform distribution of the mass on different surfaces.By adding water as a component, the composition can maintain a balanced moisture balance, which positively affects drying time and promotes adhesion of the composition to substrates. This provides a smooth and precise finish that is detrimental to the requirements of high quality surface finishes.In addition, water promotes the integration of other ingredients such as calcium carbonate, marble flour and cellulose into a homogeneous mixture, whereby the physical properties of the composition can be optimized. Water contributes to the flexibility of the filler, which facilitates adaptation to different application situations.In cooperation with other components, the water content of the filler can form a basis for a lasting construction, wherein environmental friendliness and performance play a role. This property makes the trowelling composition a versatile choice for modern construction and renovating designs that allow both efficiency and ecological responsibility.

Claims

A filler comprising calcium carbonate, wherein the filler does not contain an acrylate.Filling composition according to Claim 1, characterized in that the calcium carbonate content is between 20 and 70 percent by weight.The filling compound according to claim 1, characterized in that the filling compound does not contain any organic pesticides.Filling compound according to one of the preceding claims, characterized in that the filling compound has a pH of at least 8, preferably at least 9.5, most preferably at least 11.Filling compound according to one of the preceding claims, characterized in that the filling compound comprises marble flour.The trowelling composition according to any one of the preceding claims, characterized in that the trowelling composition comprises calcium hydroxide, preferably in an amount between 10 and 20 percent by weight.Filling compound according to one of the preceding claims, characterized in that the filling compound comprises cellulose.Filling compound according to one of the preceding claims, characterized in that the filling compound comprises borate, preferably sodium borate.The trowelling composition according to any one of the preceding claims, characterized in that the trowelling composition comprises water, preferably in an amount between 10 and 20 percent by weight.