B29B17/0036

Post-consumer scrap film recycling system and process

A system and method for processing a supply of post-consumer scrap linear low density or low density polyethylene film into near-virgin quality blown film product. The method includes tearing the supply of film in a shredder, wherein the surface area of the film is exposed, including delaminating the film. The torn supply of film is washed in a water bath including a surfactant. The film is agitated in the bath containing the surfactant wherein contaminants on the film are removed from the film. The washed film is ground into smaller pieces and additional washing of the ground film in a rotating friction washer and a sink float tank occurs wherein additional contaminants are removed from the film. The ground film is then dried and compacted without addition of water into granulated objects of near-virgin quality blown film product.

Post-consumer scrap film recycling system and process

A system and method for processing a supply of post-consumer scrap linear low density or low density polyethylene film into near-virgin quality blown film product. The method includes tearing the supply of film in a shredder, wherein the surface area of the film is exposed, including delaminating the film. The torn supply of film is washed in a water bath including a surfactant. The film is agitated in the bath containing the surfactant wherein contaminants on the film are removed from the film. The washed film is ground into smaller pieces and additional washing of the ground film in a rotating friction washer and a sink float tank occurs wherein additional contaminants are removed from the film. The ground film is then dried and compacted without addition of water into granulated objects of near-virgin quality blown film product.

POLYESTER FILM AND METHOD FOR MANUFACTURING THE SAME

A polyester film and a method for manufacturing the polyester film are provided. The method for manufacturing a polyester film by using a recycled plastic material includes the following steps. A part of the recycled plastic material is physically reproduced to obtain a physically regenerated polyester resin. Another part of the recycled plastic material is chemically reproduced to obtain a chemically regenerated polyester resin. A polyester composition including the physically regenerated polyester resin and the chemically regenerated polyester resin is prepared. Based on a total weight of the polyester composition being 100 wt %, a weight of the chemically regenerated polyester resin is larger than or equal to 5 wt %. The polyester film is manufactured by using the polyester composition. Based on a total weight of the polyester film being 100 wt %, a total amount of the physically regenerated polyester resin and the chemically regenerated polyester resin is from 10 wt % to 100 wt %.

Method for manufacturing a rubber pellet, a rubber pellet as well as a product manufactured from such rubber pellet
10857698 · 2020-12-08 · ·

The invention relates to a method for manufacturing a pellet, comprising a) providing residual rubber powder from i rubber disintegration process; b) providing a pelletizing system, including a pelletizer and a cooling device; c) feeding the residual rubber powder as at least part of a feed material, into a pelletizer; d) providing the rubber powder in an amount between 50% and 100%; i) applying a pressure to the residual rubber for a predetermined process duration; f) releasing the pelletized rubber and cooling the pelletized rubber at a cooling rate dependent on the operational temperature of the pelletizer.

PET REGRANULATE HAVING HIGH INTRINSIC VISCOSITY AND METHOD FOR THE PRODUCTION THEREOF

The invention relates to a PET regranulate which, after modification of a granulated PET recyclate, has an intrinsic viscosity of at least 0.95 dl/g measured according to ASTM D 4603, preferably greater than 1.0 dl/g and particularly preferably between 1.1 dl/g and 1.7 dl/g and is suitable for the production of extrusion blow-molded containers.

RECONSTITUTED COMPOSITE MATERIALS DERIVED FROM WASTE MADE BY SOLID STATE PULVERIZATION
20200199324 · 2020-06-25 ·

A method of making polymeric composite particles from polymeric scrap material, virgin polymeric material, or mixtures thereof and glass particles by subjecting a mixture of the polymeric particles and glass particles to a solid state shear pulverization and in-situ polymer compatibilization.

METHOD FOR PRODUCING A FOAM BODY, AND FOAM BODY
20200139593 · 2020-05-07 · ·

The invention relates to a method for producing a foam material body, as well as to a foam material body. A pourable starting granulate of expanded particles of a thermoplastic material is provided, which is subjected to a non-melting heat treatment. As a result, an intermediate granulate is formed with a bulk density higher than that of the starting granulate. The foam material body is then formed by materially connecting the volume-reduced particles of the intermediate granulate by heating the intermediate granulate to a temperature greater than a glass transition temperature of the thermoplastic material in the molding cavity of a molding tool and then solidifying the thermoplastic material by cooling. The foam material body exhibits an overall density between 80 kg/m.sup.3 and 600 kg/m.sup.3.

Reconstituted composite materials derived from waste made by solid state pulverization
10633506 · 2020-04-28 ·

A method of making polymeric composite particles from polymeric scrap material, virgin polymeric material, or mixtures thereof and glass particles by subjecting a mixture of the polymeric particles and glass particles to a solid state shear pulverization and in-situ polymer compatibilization.

Method for recycling filamentary thermoplastics contaminated by undesirable materials
10618201 · 2020-04-14 · ·

A recycling method applied to thermoplastic filaments mixed with undesirable materials. The recycling method includes a feed step and a spreading step. The method continues with a horizontal cutting step wherein the layer of thermoplastic filaments and undesirable materials is leveled, and then a first cutting step wherein the layer is cut in a first vertical direction, and a second cutting step wherein the portions of layers are cut in a second vertical direction orthogonal to the first vertical direction. The method continues with a tearing step, a beating step, a preliminary grinding step, an agglomeration step, a grinding step, a separation step and finally a recovery step.

Recyclable single polymer floorcovering article

This invention relates to tufted floorcovering articles, including carpet tiles and broadloom carpet. In particular, this invention relates to tufted floorcovering articles made from the family of polymers known as polyester. Specifically, this invention relates to tufted carpet tile products made from polyester. The polyester carpet tiles meet commercial performance specifications and are fully end-of-life recyclable.