Patent classifications
B29B2017/0258
PROCESS FOR JOINT RECYCLING OF COMPOSITE ITEMS BASED ON A THERMOPLASTIC POLYMER MATRIX
A process for recycling a first article to be recycled including a composite material based on a fibrous reinforcer and a thermoplastic, preferably (meth)acrylic, polymer matrix, wherein the recycling process includes the following steps: introduction of the first article into a system suitable for the recycling of thermoplastic polymer, introduction, into the system suitable for the recycling of thermoplastic polymer, of a second article to be recycled including a thermoplastic polymer resin, and not including any fibrous reinforcer, heating of the articles to be recycled at a given temperature, in the system suitable for recycling thermoplastic polymer, so as to depolymerize the thermoplastic, preferably (meth)acrylic, polymers, and to form base monomers of the thermoplastic polymers, and recovery of the constituent base monomers of the thermoplastic polymers.
Apparatus and method for separating materials of various type
A method for separating materials of various type having different softening temperature values, includes pouring a mixture of flakes and fragments of materials on a movable receiving and conveying device in a uniformly distributed manner and advancing it along a first portion of path; actuating an electromagnetic inductor to heat an outer metal surface by electromagnetic induction, which surface is included in the movable receiving and conveying device to achieve a first lower softening temperature corresponding to a first material of the mixture; subjecting the mixture to a separating action during which a first fraction, remains stuck to the outer metal surface, whereas a remaining second fraction of materials having higher softening temperatures than the first softening temperature freely slips by gravity towards a lower receiving zone.
Device for in-line consolidation of composite materials
A system for fabricating composite parts efficiently. Pre-impregnated (prepreg) composite material is drawn as a sheet from a roll and fed by advancement rollers into a stamping and molding station in which a piece of the prepreg material is cut, on a mold, from the sheet. Pressure is applied to cause the prepreg material to conform to a surface of the mold, and the prepreg is cured with ultraviolet light. Additional layers of prepreg may be cut and cured on any layers that have already been cured on the mold. The complete part may be removed from the mold with ejector pins. Scrap prepreg may be recycled in a recycling station that separates reinforcing fiber from uncured resin.
METHOD AND PLANT FOR RECYCLING THE INFILL OF SYNTHETIC TURVES
A method is described for recycling the infill of a synthetic turf, said infill being formed by a plurality of different granular materials, including at least sand granules, polymeric material granules and synthetic grass filaments, said method comprising the following steps: drying the infill, screening the infill through a plurality of successive screens (130,140,180, 185) each having passage holes of different sizes subdividing the infill into a plurality of groups of granular material having different size ranges, separating each group of granular material into two subgroups of granular material based on the difference in density of the materials, and conveying the separated subgroups of granular materials to different collection containers.
Heating Apparatus and Anti-ignition Re-useable Bladder
The invention concerns a heating apparatus for recycling metal work pieces such as pipes, stacks, tanks and chutes which are lined and/or coated with materials such as rubber, neoprene, polyurethane or plastic. The heating apparatus applies heat to metal work piece to the point where the adhesive bond between the metal work piece and the rubber, neoprene, polyurethane or plastic is broken. An anti-ignition re-usable bladder is fitted inside a metal work piece to prevent ignition of the liner and/or coating and eliminate or significantly reduce the release of gases from the liner and/or coating during the heating process.
Method and plant for recycling the infill of synthetic turves
A method is described for recycling the infill of a synthetic turf, said infill being formed by a plurality of different granular materials, including at least sand granules, polymeric material granules and synthetic grass filaments, said method comprising the following steps: drying the infill, screening the infill through a plurality of successive screens (130,140,180,185) each having passage holes of different sizes subdividing the infill into a plurality of groups of granular material having different size ranges, separating each group of granular material into two subgroups of granular material based on the difference in density of the materials, and conveying the separated subgroups of granular materials to different collection containers.
Device for in-line consolidation of composite materials
A system for fabricating composite parts efficiently. Pre-impregnated (prepreg) composite material is drawn as a sheet from a roll and fed by advancement rollers into a stamping and molding station in which a piece of the prepreg material is cut, on a mold, from the sheet. Pressure is applied to cause the prepreg material to conform to a surface of the mold, and the prepreg is cured with ultraviolet light. Additional layers of prepreg may be cut and cured on any layers that have already been cured on the mold. The complete part may be removed from the mold with ejector pins. Scrap prepreg may be recycled in a recycling station that separates reinforcing fiber from uncured resin.
MULTI-PLASTIC AND NATURAL FIBER MATERIAL AND PROCESS FOR MANUFACTURING
A method of plastic reclamation for a plastic and natural fiber mixture, comprising, forming a mixture off first plastic component, a second plastic component, a third fiber component and a fourth additive component, the first plastic component comprising polyethylene and polypropylene, the second plastic component comprising polyethylene terephthalate, polystyrene, acrylic, nylon, polycarbonate and bioplastic, wherein the first plastic component: comprises a larger weight percentage than the second plastic component and a sum of the first plastic component and the second plastic component is 10% to 95% of a total weight, the third fiber component comprising wood, paper and natural fiber, wherein its the third fiber component is 0% to 85% of the total weight and the fourth additive component comprising at least calcium carbonate and stabilizer, wherein the fourth additive component is 5% to 45% of the total weight, agglomerating the mixture, milling the mixture and granulating the mixture,
PROCESS FOR THE RECOVERY OF RAW MATERIAL FROM WASTE PRODUCTS
The process (1) for the recovery of raw material from waste products comprises at least the phases of: supply (A) of one skein to be treated (3) composed of a harmonic steel fraction and a non-ferrous fraction; pre-treatment (F) of the skein to be treated (3) to separate the harmonic steel fraction from the non-ferrous fraction to obtain one treated skein (3b), comprising one step of mechanical separation (F1) of the harmonic steel fraction from the non-ferrous fraction; heat treatment (B) of the pre-treated skein (3 a) to obtain one treated skein (3b), the phase of heat treatment (B) comprising a step of inductive exposure (B1) of the pre-treated skein (3a) to one time-varying magnetic field, the step of inductive exposure (B1) being adapted to raise the temperature of the pre-treated skein (3 a) to one working temperature below 800 C.; post-treatment (E) of the treated skein (3b).
Process for joint recycling of composite items based on a thermoplastic polymer matrix
A process for recycling a first article to be recycled including a composite material based on a fibrous reinforcer and a thermoplastic, preferably (meth)acrylic, polymer matrix, wherein the recycling process includes the following steps: introduction of the first article into a system suitable for the recycling of thermoplastic polymer, introduction, into the system suitable for the recycling of thermoplastic polymer, of a second article to be recycled including a thermoplastic polymer resin, and not including any fibrous reinforcer, heating of the articles to be recycled at a given temperature, in the system suitable for recycling thermoplastic polymer, so as to depolymerize the thermoplastic, preferably (meth)acrylic, polymers, and to form base monomers of the thermoplastic polymers, and recovery of the constituent base monomers of the thermoplastic polymers.