Thermal and acoustic insulation formulation and its respective manufacturing process.

Description

/ 6 “THERMOACOUSTIC INSULATING FORMULATION AND ITS PROCESS FOR OBTAINING IT”. Field of application

[001] This is a formulation framed within the technical sector of chemically prepared substances and products intended to act as thermal and acoustic insulating elements. Fundamentals

[002] It is known that the need and / or desire to reduce heat transmission, as well as to minimize sound propagation, has resulted in the development of a huge variety of solutions, finalized in both physical and chemical barriers, combined or not with each other, such as, for example, the use of polyurethane foams, corks, glass and ceramic fibers, plaster, refractory and dyeing materials, among others, each with its specific properties and characteristics and which, in general, provide acoustic insulation, resistance and / or thermal conservation. State of the art

[003] In this same respect, document no. BR102019024989-7 presents a formulation and its respective manufacturing process consistent with a waterproofing and coating material, which, according to its inventor, possesses thermoacoustic insulation properties, in addition to fire resistance, whose composition combines the use of ethylene vinyl. Petition 870250012252, dated 02 / 14 / 2025, page 11 / 25 / 6 acetate, polyvinyl butyral and ethylene octene as bases; stearic acid as a flow agent in the manufacturing process; butylated hydroxytoluene (BHT) as an antioxidant; paraffinic oil to control the stiffness of the blanket; and titanium dioxide as an antioxidant pigment, while mechanical resistance, fire resistance, abrasion resistance, impermeability, thermal and acoustic insulation are guaranteed by calcium carbonate and hydrated magnesium and iron aluminosilicates.

[004] In document no. BR102022015941, a thermoacoustic insulator based on coconut fiber and castor oil vegetable polyurethane resin is described, reported as being able to provide the necessary thermal and acoustic insulation in buildings, walls, roofs or floors, according to current standards, possessing adequate technical properties of grammage, moisture absorption, longitudinal tensile strength, conductivity and thermal resistance, and sound absorption coefficient.

[005] Although framed within an operational field of similar purposes, the matters addressed in the aforementioned documents result in the use of distinct components that do not interfere with or anticipate the combination and form of preparation of those now revealed. Deficiencies observed in conventional products

[006] Many formulations with relatively similar purposes available on the market bring a number of drawbacks, such as: Petition 870250012252, dated 02 / 14 / 2025, page 12 / 25 / 6 - The need to add additives, even in specific proportions, requires skill, advanced knowledge, and greater attention from the applicator, and this lack of practicality ultimately negatively impacts the choice and purchase of the product; - They tend to be highly flammable; - They produce smoke, some with worrying levels of toxicity; - They are not completely waterproof and can absorb water and other types of fluids; - They have low resistance to acids, bases, aromatic and aliphatic solvents; - They do not fully comply with specific regulatory standards, among other problems. From the thermoacoustic insulating formulation

[007] In this sense, the object of the patent application in question refers more precisely to a thermoacoustic insulating formulation and its respective production process, carried out from the catalytic expansion of resins with additives, also standing out for its enormous versatility of application on the vast majority of surfaces that need to be coated with Petition 870250012252, dated 02 / 14 / 2025, page 13 / 25 / 6 protective insulating layers with both thermal (covering temperatures from -180° to 140°C) and acoustic properties, including finishing. Technical effects and advantages

[008] Through the aforementioned formulation, it was possible to arrive at a product that is much more practical and safe to use, since it eliminates the need for additives, does not catch fire even in the presence of direct flames, does not produce smoke, does not drip and does not absorb water, prevents the proliferation of fungi and bacteria, resists acids, bases, aromatic and aliphatic solvents, has a temperature range of -180° (cryogenic) to 140°C, and fully complies with regulatory standards. Qualitative and quantitative aspects

[009] The formulation in question comprises the following components and proportions which may vary depending on the product / application: - resins: 55 to 96%; - catalysts: 12 to 1.5%; - Additives: 15 to 1%; - Expansion agents: 25 to 2%; - Coadjuvant agents: 15 to 0.5% Steps for obtaining

[010] The main steps to arrive at the final product are described below: - receiving the raw material; Petition 870250012252, dated 02 / 14 / 2025, page 14 / 25 / 6 - preparing the mixture to form a viscous liquid; - Addition of catalysts, with vigorous shaking for a specified time; - pouring the catalyzed mixture into a steel mold; - sealing the steel mold with the catalyzed mixture; - Wait the necessary time for the reaction to be complete; - removal of the formed block; - resting of the formed block; - Lamination in the desired format. ADDITIONAL FEATURES

[011] The following is also a list of advantageous and complementary characteristics that make up the thermoacoustic insulation formulation presented here: - Density: can vary from 20 to 150 kg / m3, depending on the type of application; - Hardness: can vary between 20 and 80 on the Shore D scale; - compressive hardness (IFD / ILD): 50 to 900 kPa; - Texture: varies with application, ranging from slightly crumbly to velvety; Petition 870250012252, dated 02 / 14 / 2025, page 15 / 25 / 6 - Thickness in panels: between 2 cm and 20 cm, and in some cases up to 40 cm; - formats: a) in straight plates with dimensions up to 2 m in length and 2 m in width in the indicated thicknesses; b) curvilinear: it can be prepared from its formation in molds with the indicated curves or by diagonal cutting forming the specified curve; c) in coated or uncoated pipes, with diameters between 1 and 40 inches, for applications in air conditioning piping, refrigerated or steam pipes in the chemical, food, textile and petroleum industries, among others.

[012] This thermoacoustic insulating formulation minimizes thermal transmission and insulation problems, and also acts as an acoustic absorber when supplied in densities between 25 and 40 kg / m3, and its fire resistance and smokeless emission characteristics allow for safe applications in a wide variety of locations and environments. Petition 870250012252, dated 02 / 14 / 2025, page 16 / 25

Claims

1 / 2 CLAIMS 1) - “THERMOACOUSTIC INSULATING FORMULATION”, characterized by not requiring the addition of additives, not catching fire even in the presence of direct flames, not producing smoke, not dripping and not absorbing water, preventing the proliferation of fungi and bacteria, resisting acids, bases, aromatic and aliphatic solvents, having a temperature range of -180° (cryogenic) to 140°C, comprising the following components and proportions which may vary according to the product / application: resins: 55 to 96%; catalysts: 12 to 1.5%; additives: 15 to 1%; blowing agents: 25 to 2%; coadjuvant agents: 15 to 0.5%. 2) - “PROCESS FOR OBTAINING A THERMOACOUSTIC INSULATING FORMULATION”, characterized by involving the steps of receiving the raw material; preparing the mixture forming a viscous liquid; adding the catalysts, with vigorous stirring for a determined time; pouring the catalyzed mixture into a steel mold; sealing the steel mold with the catalyzed mixture; waiting the time necessary for the complete reaction; removing the formed block; resting the formed block; laminating it into the desired shape. 3) - “THERMOACOUSTIC INSULATING FORMULATION”, according to claims 1 and 2, characterized by having: variable density from 20 to 150 kg / m3, depending on the type of application; variable hardness between 20 and 80 on the Shore D scale; compressive hardness (IFD / ILD) from 50 to 900 kPa; texture that varies with the application, ranging from slightly friable to velvety; thickness in plates between 2 cm and 20 cm and in some cases up to 40 cm; formats: a) in straight plates with dimensions up to 2 m in length and 2 m in width in the indicated thicknesses; b) curvilinear: can be prepared from its formation in molds with the indicated curves or in diagonal cut forming the specified curve; c) in coated or uncoated pipes, with diameters between 1 and 40 inches; and also acting as an acoustic absorber when supplied in densities between 25 and 40 kg / m3. Petition 870250012252, dated 02 / 14 / 2025, page 18 / 25