Patent classifications
B29B2017/042
Process for Producing Monovinylaromatic Polymer Incorporating Post-Consumer Recycled Polystyrene, Monovinylaromatic Polymer Incorporating Post-Consumer Recycled Polystyrene and Articles Produced Thereof
The invention relates to a process and an installation to produce a monovinylaromatic polymer (3) comprising post-consumer recycled polystyrene (PCR-PS) wherein the process comprises the steps of mixing the PCR-PS (5) and the monovinylaromatic monomer (7) within a dissolver (9) to dissolve the PCR-PS (5) in the monovinylaromatic monomer (7) so as to produce a polymerization mixture (13); and a step of filtering the polymerization mixture (13) that includes continuously redirecting at least a part of the stream of the filtered polymerization mixture (17) back to the dissolver (9) and mixing it with the polymerization mixture (13) so as to continuously reduce the content of insoluble material in the polymerization mixture (13) contained in the dissolver (9).
METHOD FOR REPAIRING OR RECYCLING AN ELASTOMERIC FILM
The present invention relates to methods for reprocessing elastomeric films or articles comprising an elastomer film wherein the elastomeric film is made from a polymer latex comprising: (a) particles of a carboxylated conjugated diene nitrile latex polymer (a) obtainable by free-radical emulsion polymerization of a mixture of ethylenically unsaturated monomers comprising: 15 to 99 wt.-% of conjugated dienes; 1 to 80 wt.-% of monomers selected from ethylenically unsaturated nitrile compounds; 0.05 to 10 wt.-% of ethylenically unsaturated carboxylic acids and/or salts thereof; 0 to 50 wt.-% of vinyl aromatic monomers; and 0 to 65 wt.-% of alkyl esters of ethylenically unsaturated acids, the weight percentages being based on the total monomers in the mixture in combination or association with (b) particles of a latex polymer (b) comprising at least one oxirane-functional group;
wherein the monomer composition of the latex polymer (a) is different from the monomer composition of the latex polymer (b) and to the use said polymer latex to make an elastomeric film obtained from said polymer latex self-healing, repairable and/or recyclable.
METHOD FOR RECYCLING GLASS FIBRE REINFORCED PLASTIC
The present invention relates to a process for recycling glass fiber-reinforced plastics, in particular plastics based on polyamide, polybutylene terephthalate or polyethylene terephthalate, to recover both the monomers of the polymer and the glass used for the glass fibers.
METHODS FOR RECYCLING PLASTIC NYLON 6,6 FROM VACUUM BAGS TO OBTAIN FILAMENTS OR POWDER FOR 3D PRINTING PROCESSES
Methods for recycling plastic Nylon 6,6 from vacuum bags to obtain filaments or powder for 3D printing processes. The method to obtain filaments includes a step of providing used Nylon 6,6 vacuum bags, a quality control step to check the status of the used vacuum bags, a step to form smaller parts, such as smaller pieces or pellets, from the used vacuum bags, quality control step to check the status of the smaller pieces or the pellets, an extrusion step wherein the smaller pieces or the pellets are introduced into an extruder, where they are melted, and the molten mixture is cooled and expelled through the die of the extruder to produce the recycled filaments, and a winding step wherein the recycled filaments that go out of the extruder are rolled up in coils.
COMPOSITE BOARD FROM PLASTIC WASTE
Plastic waste is shredded and formed to a desired shape and held together using a binder and/or heat, etc. The resulting composite material may be useful for building and/or furniture and/or flooring, etc. (similar to wood composite board). In some embodiments, the board is highly water resistant. Optionally, the board is made of layers. For example, an inner layer has reduced density and/or an outer layer may have decreased particle size and/or increased fiber content.
PLANT AND METHOD FOR RECYCLING HETEROGENEOUS PLASTIC MATERIALS
A plant of recycling heterogeneous plastic materials comprises: an infeed stage (2) of the plastic material to be recycled, a processing stage (3) of the plastic material fed by said infeed stage (2) and an extraction stage (4) of the plastic material processed in said processing stage (3), wherein said processing stage (3) of the plastic material comprises a rubbing and drying chamber (5) of the fed plastic material suitable for achieving a reduction of the volume and homogenization with drying of the processed material inside said rubbing and drying chamber (5).
PROCESS FOR THE PRODUCTION OF A COMPOSITE MATERIAL FROM TEXTILE WASTE AND POLYETHYLENE FILM WASTE
The invention relates to a process for the production of a composite material from textile waste and polyethylene film waste, characterized in that it comprises the following steps: a) comminuting the textile waste into the fraction up to 15 mm in size, b) comminuting the polyethylene film into the fraction up to 15 mm in size, c) separating metal parts from the comminuted textiles, d) separating metal parts and unwanted plastics from the comminuted film, e) further comminuting the textiles into the fraction up to 5 mm in size, f) mixing the comminuted textiles with the comminuted film, said textiles constituting 10-50% of the mixture, g) plasticizing, homogenizing and extruding the obtained mixture in an extruder at the temperature of 170-240° C. and under the pressure of 8-15 MPa.
RECYCLING OF A SHOE
The present invention provides a method for recycling a shoe (100), the shoe (100) comprising various components made from the same material class with varying densities, the method comprises milling (210) the shoe (100) to obtain a plurality of particles (212), the particles (212) having different material densities, mixing (240) the particles, applying heat (312) to the mixed particles (242) to obtain a melt of molten particles and extruding (317) the melt.
Recyclable aerosol dispensers
A polymeric aerosol dispenser that is recyclable. The recyclable polymeric aerosol dispenser including all polymeric components. These components being selectively either fixedly joined or separably joined based on the material composition of the component. Further, components may be selected for their density and, thus, their ability to float or sink during the recycling process. The recyclable polymeric aerosol dispenser is designed to minimize its impact on the PET recycling stream and to align with industry recyclability guidelines.
METHOD FOR RECYCLING PLASTIC
A method for recycling plastic such as plastic toys includes grinding the plastic into plastic pieces, sorting the plastic pieces based on type of plastic, sorting the plastic pieces based on colour, after sorting of the plastic pieces, shredding the sorted plastic pieces into plastic flakes, and processing the plastic flakes into a recycled good by means of rotational moulding. During the rotational moulding, a micronized plastic is added.