Coating composition for interior and exterior walls and floors

Abstract

The present invention proposes a coating composition for interior and exterior walls based in particular on marble powder, rock and plant additive which has a very low environmental impact and good technical performance.

Description

Title of the invention: Coating composition for interior and exterior walls and floors

[0001] The present invention relates to a coating composition for interior and exterior walls and floors.

[0002] Interior and exterior walls are often exposed to wear, stains, and atmospheric agents. It is therefore necessary to protect them with a suitable coating.

[0003] Traditional coatings are often composed of chemicals that can be harmful to the environment. They can also be difficult to apply and have low resistance to wear and stains.

[0004] The present invention proposes a coating composition for interior and exterior walls which has a very low environmental impact and good technical performance.

[0005] The composition according to the invention comprises: - From 15% to 30%, preferably from 20% to 25%, more preferably from 23% to 24% by weight of at least one marble or beatite powder; - From 5% to 15%, preferably from 10% to 15%, more preferably from 11% to 13% by weight of at least one rock selected from the group including pozzolana, ceramsite, vermiculite, perlite or a mixture thereof; - From 10% to 25%, preferably from 15% to 20%, more preferably from 15% to 18% by weight of at least one binder selected from the group including lime, white cement, mortar, raw earth, hempcrete or a mixture thereof; - From 3% to 10%, preferably from 5% to 8%, more preferably from 5.5% to 7.5% by weight of at least one filler selected from the group including micronized silica, glass powder, quartz powder, clay powder, ceramic powder, or a mixture of these; - From 3% to 10%, preferably from 4% to 6%, more preferably from 4.5% to 5.5% by weight of at least one plant additive selected from the group including flaxseed powder, flaxseed flour, coconut powder, hemp powder.

[0006] According to one embodiment, at least one marble powder has a particle size between 0.002 and 0.04 µm, preferably between 0.002 and 0.01 µm, and even more preferably between 0.002 and 0.004 µm. A particle size of 0.003 µm makes it possible to obtain a coating with a fine and homogeneous appearance.

[0007] According to one embodiment, at least one marble powder has a particle size between 1 and 5 pm, preferably between 2 and 4 pm, even more preferably 4 pm.

[0008] According to one embodiment, the composition according to the invention comprises two different marble powders, the first having a particle size between 0.002 and 0.04 pm, preferably between 0.002 and 0.01 pm, even more preferably from 0.002 to 0.004 pm and the second having a particle size between 1 and 5 pm, preferably between 2 and 4 pm, even more preferably from 4 pm.

[0009] According to one embodiment, the marble powder is selected from the group comprising the powder of: Carrara marble, Canicatti marble (or "Sicilian marble in strands"), Bergamo marble, Calacatta marble, Thassos marble, Botticino marble, cipolin marble and their mixture; preferably the composition comprises a mixture of Carrara marble powder and Canicatti marble powder.

[0010] Carrara marble is a natural marble known for its beauty, hardness, and resistance. In one embodiment, the grain size of Carrara marble is between 0.002 and 0.04 µm, preferably between 0.002 and 0.01 µm, and even more preferably between 0.002 and 0.004 µm. A grain size of 0.002 to 0.004 µm allows for a coating with a fine and homogeneous appearance.

[0011] Particle size distribution is a measure of the size of the grains of a material. It is expressed in millimeters or microns. The particle size distribution of a material is important because it determines its mechanical, physical, and chemical properties.

[0012] Sicilian marble is a natural marble known for its strength and durability. Marble chips reinforce the structure of the cladding and improve its abrasion resistance. In one embodiment, the particle size of the Sicilian marble chips is between 1 and 5 µm, preferably between 2 and 4 µm, and even more preferably 4 µm. A particle size of 4 µm results in a cladding with a fine and homogeneous appearance.

[0013] According to one embodiment, at least one rock is pozzolana: pozzolana is a natural material which is used as an additive to improve the application open time of the product (lifespan 10 hours).

[0014] According to one embodiment, the composition comprises at least lime and white cement as binders. Lime is a natural material used as a binder for coatings. It contributes to the coating's good adhesion to the substrate and its malleability. White cement: White cement is a synthetic material used as a binder for coatings. It contributes to the coating's strength, durability, and hardening.

[0015] According to one embodiment, at least one filler is micronized silica: micronized silica is a natural material that is used as a filler for coatings. It contributes to the stability of the coating and its resistance to abrasion.

[0016] According to one embodiment, at least one plant-based additive is flaxseed powder: flaxseed powder is a natural material used as an additive to improve the appearance and properties of the coating. It contributes to the softness and brightness of the coating and its microporosity, and provides significant acoustic and thermal characteristics.

[0017] Flaxseed powder is a natural product obtained by micronizing flaxseed fibers. The micronization process consists of grinding the flaxseed fibers into fine particles. In one embodiment, the particle size of the flaxseed powder is < 1 mm

[0018] According to another embodiment, the particle size of the flax powder is 0.2 to 0.3 mm, preferably 0.1 to 0.25 mm, even more preferably 0.3 mm.

[0019] According to a preferred embodiment of the invention, the composition according to the invention comprises Carrara marble, Sicilian marble in Canivati ​​strands, pozzolana, lime, white cement, micronized silica, and linseed flour.

[0020] According to a preferred embodiment of the invention, the composition comprises: - From 10 to 15%, preferably from 10 to 12%, more preferably from 10.5% to 11.5% by weight of marble powder with a particle size between 0.002 and 0.04 pm, preferably between 0.002 and 0.01 pm, even more preferably from 0.002 to 0.004 pm and / or being Carrara marble powder; -Del0%àl5%, preferably from 10% to 12%, more preferably from 10.5% to 11.5% by weight of marble powder with a particle size between 1 and 5 pm, preferably between 2 and 4 pm, even more preferably of 4 pm and / or being a Canicatti marble powder;

[0021] - From 6% to 8%, preferably from 6.5% to 7.5%, more preferably from 6.8% to 7.8% by weight of pozzolana; - From 7% to 8%, preferably from 7.2% to 7.9%, more preferably from 7.5% to 7.8% by weight of lime; - From 5% to 8%, preferably from 5.5% to 7.5%, more preferably from 6.5% to 7.9% by weight of white cement; - From x 5% to 7.5%, preferably from 5.5% to 7%, more preferably from 5.5% to 7.2% by weight of micronized silica; - From 5% to 8%, preferably from 5.5% to 7.8%, more preferably from 5.8% to 7.9% by weight of linseed powder.

[0022] According to one embodiment, the composition is supplied in powder form to be mixed with water before use. The mixture is applied to the substrate using a traditional coating technique.

[0023] The composition of the invention has a very low environmental impact because it is formulated on a water base. It is also easy to apply and exhibits high hardness and adhesion, as well as resistance to abrasion, stains, atmospheric agents, UV rays, with an A+ rating and significant thermal and acoustic performance, etc.

[0024] The composition of the invention has the following advantages: - A very low environmental impact because it is water-based. - Ease of application - High hardness and adhesion - Resistance to abrasion, stains, weathering, and UV rays - A+ rating - Significant thermal and acoustic performance, etc.

Claims

Demands

1. Composition of coating for interior walls and floors and exterior walls comprising: - From 15% to 30% by weight of at least one marble or beatite powder; - From 5% to 15% by weight of at least one rock selected from the group comprising pozzolana, ceramsite, vermiculite, perlite or a mixture thereof; - From 10% to 25% by weight of at least one binder selected from the group comprising lime, white cement, mortar, raw earth, hempcrete or a mixture thereof; - From 3% to 10% by weight of at least one filler selected from the group comprising micronized silica, glass powder, quartz powder, clay powder, ceramic powder, or a mixture thereof; - From 3% to 10% by weight of at least one selected plant additive from the group including flaxseed powder, flaxseed flour, coconut powder, hemp powder.

2. Coating composition according to claim 1, characterized in that at least one marble powder has a particle size between 0.002 and 0.04 pm, preferably between 0.002 and 0.01 pm, even more preferably from 0.002 to 0.004 pm or between 1 and 5 pm, preferably between 2 and 4 pm, even more preferably from 4 pm.

3. Coating composition according to claim 1, characterized in that it comprises two different marble powders, the first having a particle size between 0.002 and 0.04 pm, preferably between 0.002 and 0.01 pm, even more preferably from 0.002 to 0.004 pm and the second having a particle size between 1 and 5 pm, preferably between 2 and 4 pm, even more preferably from 4 pm.

4. A coating composition according to any one of claims 1 to 3, characterized in that the marble powder is selected from the group comprising powder of: Carrara marble, Canicatti marble (or "Sicilian marble in strands"), Bergamo marble, Calacatta marble, Thassos marble, Botticino marble, cipolin marble and mixtures thereof;

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9. Preferably, the composition comprises a mixture of Carrara marble powder and Canicatti marble powder. A coating composition according to any one of claims 1 to 4, characterized in that at least one rock is pozzolan. Coating composition according to any one of claims 1 to 5, characterized in that it comprises at least lime and white cement as binders. Coating composition according to any one of claims 1 to 6, characterized in that at least one filler is micronized silica. Coating composition according to any one of claims 1 to 7, characterized in that at least one vegetable additive is linseed powder. Coating composition according to claim 8, characterized in that the flax powder has a particle size of 0.2 to 0.3 mm, preferably 0.1 to 0.25 mm, even more preferably 0.3 mm.