Process for recycling and the production of mixtures of polymeric materials for incorporation in situ in the polymerization process in suspension, the products resulting from the process, and uses of these products

摘要

Process for recycling and the production of mixtures of polymeric materials for incorporation in situ in the polymerization process in suspension, the products resulting from the process and uses thereof.The present invention relates to a process for recycling and production of mixtures (blends) of polymeric materials by incorporating in su00edtu in the polymerization process in suspension, containing up to 40% by weight of recycled material. The process is characterized by the dissolution or dispersion of the polymer to be recycled into a mixture of monomers, which is subsequently polymerised.The process is also characterized by the control of the viscosity of the mixture initial reagent, essential to ensure the reproducibility of the process in industrial plant. The great advantage of the case concerns the greater homogeneity of the final product, when compared to the homogeneity of recycled materials by mechanical mix.It is shown that this mixing process can be modeled and monitored, allowing adequate control of the final properties of the material. The process enables the recycling and mixing of various materials, and only requires that the polymer is soluble in the mixture of monomers to be polymerized.The polymeric resins produced with final properties, which depend on the characteristics and quantities of recycled polymeric material.The use of this technique allows the recycling of polymeric materials discarded or out of specification, leading to the production of more noble materials, contributing to the increase of the sustainability of the process and saving energy and raw material.