B29B9/04

Method for producing powder from a granular, thermoplastic material and device for producing chips from a powdery, thermoplastic material
09987607 · 2018-06-05 · ·

A method for producing powder from a coarsely granular, thermoplastic material, comprising a homogenizing first device produces a first melt from a non-homogeneous pre-mixture of the material; first chips are produced from the first melt in a second device; the chips are milled to a powder; the powder is separated into at least two fractions with coarser and finer particle sizes; and a selected fraction with finer particle sizes is returned to the method prior to milling; wherein a second melt is produced from the selected fraction in a non-homogenizing third device, with second chips being produced from the latter, and the second chips are combined with the first chips and milled with each other.

FIBER AGGREGATE FOR MOLDING

An object of the present invention is to provide a fiber aggregate for a molded article having satisfactory appearance that can provide a molded article excellent in stiffness and strength against bending, further excellent in impact resistance and appearance. The object of the present invention is also to provide a pre-sheet and a molded article that are obtained from the fiber aggregate for the molded article. The fiber aggregate for molding according to the present invention includes the fiber component and the thermal fusion bonding resin component, in which the fiber component contains a pulp fiber and a polypropylene fiber; the thermal fusion bonding resin component contains at least one selected from the group consisting of polyethylene and acid-modified polyethylene; a content of the thermal fusion bonding resin component in the fiber aggregate is 3% by mass or more and 18% by mass or less; and when T represents a tensile strength of the fiber aggregate in a first direction, and Y represents a tensile strength of the fiber aggregate in a second direction perpendicular to the first direction, a T/Y ratio is 0.5 or larger and 1.5 or smaller.

Heat shrinkable film and method for reproducing polyester container using same

The embodiments relate to a heat shrinkable film and a process for regenerating a polyester container using the same. The heat shrinkable film comprises a copolymerized polyester resin comprising a diol component and a dicarboxylic acid component and has a heat shrinkage rate of 30% or more in the main shrinkage direction upon thermal treatment at a temperature of 80 C. for 10 seconds, a melting point of 190 C. or higher as measured by differential scanning calorimetry, and a peak temperature (Tp) of 95 C. to 115 C. as measured in the endothermic and exothermic curve (heat flow) by differential scanning calorimetry. It not only solves the environmental problem by improving the recyclability of the polyester container, but also is capable of enhancing the yield and productivity.

Heat shrinkable film and method for reproducing polyester container using same

The embodiments relate to a heat shrinkable film and a process for regenerating a polyester container using the same. The heat shrinkable film comprises a copolymerized polyester resin comprising a diol component and a dicarboxylic acid component and has a heat shrinkage rate of 30% or more in the main shrinkage direction upon thermal treatment at a temperature of 80 C. for 10 seconds, a melting point of 190 C. or higher as measured by differential scanning calorimetry, and a peak temperature (Tp) of 95 C. to 115 C. as measured in the endothermic and exothermic curve (heat flow) by differential scanning calorimetry. It not only solves the environmental problem by improving the recyclability of the polyester container, but also is capable of enhancing the yield and productivity.

APPARATUS FOR CUTTING SUPER ABSORBENT POLYMER AND METHOD FOR PREPARING SUPER ABSORBENT POLYMER USING SAME

The present invention relates to an apparatus for cutting a super absorbent polymer and a method for preparing a super absorbent polymer using the same. The apparatus for cutting a super absorbent polymer of the present invention includes: an injection part for injecting a super absorbent polymer; a first cutter for primarily cutting the super absorbent polymer; a second cutter for secondarily cutting the super absorbent polymer; and a discharging part for discharging the cut super absorbent polymer.

RECYCLED PLASTIC AGGREGATE FOR USE IN CONCRETE
20170088463 · 2017-03-30 ·

The synthetic recycled plastic aggregate for use in concrete is a composite material containing between 30% and 50% by weight shredded recycled plastic, the balance being a filler embedded in a matrix of the recycled plastic. The recycled plastic includes polyethylene terephthalate (PET). The filler can include dune sand, fly ash and quarry fines. The synthetic recycled plastic aggregate is best used to make concrete with a water-to-cement ratio of at least 0.5.

METHOD FOR PRODUCING WOOD FIBRE PELLETS

A process for producing pellets or granules comprising fibres of a lignocellulousic material, for use as a feedstock in plastics manufacture, conveying in a dry or wet air stream and applying to the fibres a liquid formulation comprising one or more polymers, monomers, or oligomers, forming the fibres into a solid product, and breaking down the solid product to produce said pellets or granules. Typically the conduit conveys the fibres in a plant for manufacture of fibre board.

Recyclable plastic label
12305092 · 2025-05-20 · ·

The disclosure relates to a mechanically recyclable label (1) comprising a face (2) and an adhesive (4). The face (2) comprises ethylene containing polymer and the adhesive (4) comprises pressure sensitive adhesive. The pressure sensitive adhesive comprises at least 15 wt. % of a base polymer, at least 25 wt. % of a tackifier and at least 10 wt. % of a plasticizer. The base polymer, the tackifier and the plasticizer are colourless and odourless. The base polymer is a styrene block copolymer. The mechanically recyclable label (1) is mechanically recyclable with packaging material comprising ethylene containing polymer. The disclosure further relates to a label laminate (8), a method for manufacturing a label laminate (8), a labelled item (101), as well as to use of a label (1) and of a label laminate (8). The disclosure also relates to use of a waste matrix of the label laminate for producing granulates of recycled plastic.

Recyclable plastic label
12305092 · 2025-05-20 · ·

The disclosure relates to a mechanically recyclable label (1) comprising a face (2) and an adhesive (4). The face (2) comprises ethylene containing polymer and the adhesive (4) comprises pressure sensitive adhesive. The pressure sensitive adhesive comprises at least 15 wt. % of a base polymer, at least 25 wt. % of a tackifier and at least 10 wt. % of a plasticizer. The base polymer, the tackifier and the plasticizer are colourless and odourless. The base polymer is a styrene block copolymer. The mechanically recyclable label (1) is mechanically recyclable with packaging material comprising ethylene containing polymer. The disclosure further relates to a label laminate (8), a method for manufacturing a label laminate (8), a labelled item (101), as well as to use of a label (1) and of a label laminate (8). The disclosure also relates to use of a waste matrix of the label laminate for producing granulates of recycled plastic.

METHOD FOR PRODUCING POLYETHER NITRILE MOLDING MATERIAL AND METHOD FOR PRODUCING POLYETHER NITRILE RESIN COMPOSITION MOLDING MATERIAL

An object is to provide a polyether nitrile molding material that exhibits high flowability during molding. As a solution, a method for producing a polyether nitrile molding material, the method including molding a polyether nitrile having a bulk density of 0.3 to 1.0 g/mL, is provided.