The invention relates to a reactor arrangement and to a method for decomposing objects of plastic-based composite materials into their individual constituents by way of a solvolysis using at least one reactor chamber in which the objects as exposed to a solvent in the supercritical state. The invention is characterized in that at least three pressure chambers located in series, a first load lock chamber, a reactor chamber adjoining the same, and a second load lock chamber adjoining the latter, which are each connected to each other via an actuatable partition which can be moved from an open position, in which two of the mutually adjacent pressure chambers are connected to each other, to a closed position, in which two of the mutually adjacent pressure chambers are fluidically, thermally and pressure-specifically isolated from each other. The reactor chamber is thermally coupled to a heating system and can be directly or indirectly fluidically connected via at least one first line to the first load lock chamber and can be connected to a first pressurizable feed line, via which solvent can be fed the reactor chamber.

A method for rotary die cutting. The method may include providing, to an accumulator, an input comprising a melt. The method may include processing, by the accumulator utilizing a set of rolls, the melt to form a sheet of material. The method may include providing, from the accumulator, the sheet of material to a dandy roll. The method may include providing, from the dandy roll, the sheet of material to a rotary die. The method may include cutting, by the rotary die, a product from the sheet of material. The method may include providing, from the rotary die, the product to a stacker.

Described herein are methods of preparing cutin-derived monomers, oligomers, or combinations thereof from cutin-containing plant matter. The methods can include heating the cutin-derived plant matter in a solvent at elevated temperature and pressure. In some preferred embodiments, the methods can be carried out without the use of additional acidic or basic species.

A mechanochemical process for preparation of valuable products free from persistent organic contaminants and other organic halogen compounds, from waste of non-mixed and mixed, plastics and plastic laminates which is contaminated with persistent organic contaminants and/or contain the organic halogen compounds. Shredded waste is filled into a mill containing milling balls and is further shredded by milling. At least one dehalogenating agent is added. The mixture is milled further, and milling is stopped after a set time period. Before or after this step a further additive is added. The resulting products are separated from the milling balls, and the resulting halogen containing water-soluble products are jettisoned by washing with aqueous solvents and/or the resulting halogen containing, water-insoluble products are not washed out, but remain in the valuable products as fillers. Valuable products prepared in accordance with the process, and methods for their use are also provided

A mechanochemical process for preparation of valuable products free from persistent organic contaminants and other organic halogen compounds, from waste of non-mixed and mixed, plastics and plastic laminates which is contaminated with persistent organic contaminants and/or contain the organic halogen compounds. Shredded waste is filled into a mill containing milling balls and is further shredded by milling. At least one dehalogenating agent is added. The mixture is milled further, and milling is stopped after a set time period. Before or after this step a further additive is added. The resulting products are separated from the milling balls, and the resulting halogen containing water-soluble products are jettisoned by washing with aqueous solvents and/or the resulting halogen containing, water-insoluble products are not washed out, but remain in the valuable products as fillers. Valuable products prepared in accordance with the process, and methods for their use are also provided

A method for producing particles, the method including: depolymerizing a resin to obtain a depolymerized product; contacting the depolymerized product obtained in the depolymerizing with a first compressive fluid to obtain a melted product; and jetting the melted product obtained in the contacting to granulate the particles.

Provided is a reinforcing material having high interfacial adhesion with a matrix resin. The reinforcing material containing a covering layer according to an embodiment of the present invention includes a reinforcing material that imparts strength to a matrix resin by being combined with the matrix resin, and a covering layer formed on a surface of the reinforcing material, in which the covering layer is formed of a vaporized material generated by heating the resin.

The invention relates to a process (100) for the recycling of an article based on (meth)acrylic thermoplastic polymer resin, characterized in that it comprises the following steps: introduction (110) of the article into a system suitable for the recycling of thermoplastic polymer, at least partial depolymerization (130) of the (meth)acrylic thermoplastic polymer resin so as to form (meth)acrylate monomers, introduction (140) of a hydrolysis catalyst into a hydrolysis reactor, introduction (150) of water into said hydrolysis reactor, and conversion (160), in the hydrolysis reactor, of at least part of the (meth)acrylate monomers into (meth)acrylic acid.

The invention also relates to a system for recycling an article based on (meth)acrylic thermoplastic polymer resin.

The invention relates to a process (100) for the recycling of an article based on (meth)acrylic thermoplastic polymer resin, characterized in that it comprises the following steps: introduction (110) of the article into a system suitable for the recycling of thermoplastic polymer, at least partial depolymerization (130) of the (meth)acrylic thermoplastic polymer resin so as to form (meth)acrylate monomers, introduction (140) of a hydrolysis catalyst into a hydrolysis reactor, introduction (150) of water into said hydrolysis reactor, and conversion (160), in the hydrolysis reactor, of at least part of the (meth)acrylate monomers into (meth)acrylic acid.

The invention also relates to a system for recycling an article based on (meth)acrylic thermoplastic polymer resin.

Vents and micro-structures of rubber molds may become clogged with rubber that is difficult to remove. These vents and micro-structures can be cleaned of rubber, even if heat aged, by subjecting the mold to high temperatures in the presence of a solvent to devulcanize any rubber present. If the rubber used with the mold being cleaned includes carbon black, a solvent may be used to dissolve the devulcanized polymer, leaving the carbon black which can be removed by water jets or other cleaning means.