Synthetic rubber tile with thermal resistance modulation

Abstract

A prefabricated tile-type coating, whose manufacture is based on the development of a polymeric composite including mainly recycled synthetic rubber obtained from the grinding of scrap automotive waste tires, virgin rubber, or a combination of both, using as a binder a novel cross-linkable acrylic resin with the ability to be processed by pultrusion. The upper layer of the tile is made of a resin with thermochromic effect that integrates an encapsulated pigment of thermochromic material with a transition temperature in the range of 20-35° C. which changes color from white under high-temperature conditions, i.e. ° C. or greater than dark in conditions of low temperature, that is, 20° C. or less. The tile of elastomeric character obtained has notable competitive advantages compared to other technologies in terms of thermal resistance, solar reflectance, and resistance to the impact caused by hail or other meteorological phenomena.

Description

OBJECT OF THE INVENTION[0001]The present invention describes a prefabricated tile-type coating, in which the manufacture method is based on the development of a polymeric composite composed mainly of recycled synthetic rubber obtained from the grinding of scrap automotive waste tires, virgin rubber or a combination of both, utilizing as a binder, an innovative retractable acrylic resin with the ability to be processed by pultrusion.[0002]The upper layer of the tile is a resin with thermochromic effect that integrates an encapsulated pigment of thermochromic material with a transition temperature in the range of 20-35° C. which changes color from white under high-temperature conditions, meaning, 35° C. or greater to darker color in conditions of low temperature, that is, 20° C. or less.[0003]The tile of elastomeric character obtained has notable competitive advantages compared to other technologies regarding thermal resistance, solar reflectance, and resistance to the impact caused b...

AI Technical Summary

Benefits of technology

[0005]On the other hand, the traditional asphalt tile does not offer any thermal resistance in the ceilings, to the contrary, the asphalt has a high thermal conductivity resulting in the inability to reduce the flow of heat to have external temperatures of 35° C. or greater or increase it when having external temperatures of 20° C. or lower and provide some thermal comfort to the user. The manufacturers of this roof-tile type prefabricated coating have made great efforts to provide a heat transfer reduction effect or a thermal resistance effect. These efforts have been oriented towards the development of covers of high reflectance and high emissivity on the tile asphaltic as is shown in United States Patent Application 2004 / 0009319, in which surface coatings of the polymeric type with high emissivity and reflectance are promoted, such as Polyvinylidene Fluoride (PVF) films, as well as promoting the modification of asphalt using elastomers such as styrene-Butadiene-Styrene block copolymer (St-Bu-St), thermoplastics such as atactic polypropylene and thermoplastic polyolefins.

Problems solved by technology

Although this product has market acceptance, it has functional deficiencies such as the volatilization and degradation of certain low-boiling oily components responsible for the plasticity of the product that seriously affects its mechanical properties, rendering the texture of the asphalt tile, hard and brittle, resulting in cracks and markedly lower impact resistance, which becomes evident when meteorological phenomena such as hail breaks the tile causing leaks, and the need to replace it.

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