Described herein are UV reflective particles, and methods of forming UV reflective particles, comprising extruding a film having a plurality of alternating layers of polycarbonate (PC) and poly(methyl methacrylate) (PMMA), wherein each layer is less than 150 nm thick, and grinding the film into particles having a median particle size less than 200 microns.

Described herein are UV reflective particles, and methods of forming UV reflective particles, comprising extruding a film having a plurality of alternating layers of polycarbonate (PC) and poly(methyl methacrylate) (PMMA), wherein each layer is less than 150 nm thick, and grinding the film into particles having a median particle size less than 200 microns.

A powder for solid freeform fabrication includes a first resin particle and a second resin particle, wherein MFR2 is greater than MFR1 and a ratio of MFR2 to MFR1 is from 2 to 5, where MFR1 represents a melt mass-flow rate (MFR) of the first resin particle and MFR2 represents a melt mass-flow rate of the second resin particle.

A powder for solid freeform fabrication includes a first resin particle and a second resin particle, wherein MFR2 is greater than MFR1 and a ratio of MFR2 to MFR1 is from 2 to 5, where MFR1 represents a melt mass-flow rate (MFR) of the first resin particle and MFR2 represents a melt mass-flow rate of the second resin particle.

A process is provided of treating a feed comprising polyethylene terephthalate comprising dissolving said feed in a polar solvent at a temperature between about 100 to 250° C. to produce a dissolved feed; then adding an anti-solvent that is less polar than said polar solvent followed by cooling a resulting mixture resulting in precipitation of purified polyethylene terephthalate and then separation of solid purified polyethylene terephthalate from remaining liquids.

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 polyolefin. 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.

A dry granulator includes a feeding mechanism applied to suck powder materials into the material tanks; a vertical feeding mechanism to deliver the power materials to a bottom outlet of the material tank; a pressing mechanism to compress the powder materials into powder sheets with qualified hardness and thickness; an oblique feeding mechanism to deliver the powder materials to from the vertical feeding mechanism to the pressing mechanism; a crushing mechanism to crush the powder sheets into crushed powder sheets; a granulating mechanism to granulate the crushed powder sheet into finished particles products, so as to deliver to a collection storage; a sieving mechanism to separate the finished particle products with fine powders; a pressing wheel regulator applied to adjust an axial position of the lower and the upper pressing wheel; and a floating sealing device applied to provide a reliable sealing effect for the feeding mechanism.

A dry granulator includes a feeding mechanism applied to suck powder materials into the material tanks; a vertical feeding mechanism to deliver the power materials to a bottom outlet of the material tank; a pressing mechanism to compress the powder materials into powder sheets with qualified hardness and thickness; an oblique feeding mechanism to deliver the powder materials to from the vertical feeding mechanism to the pressing mechanism; a crushing mechanism to crush the powder sheets into crushed powder sheets; a granulating mechanism to granulate the crushed powder sheet into finished particles products, so as to deliver to a collection storage; a sieving mechanism to separate the finished particle products with fine powders; a pressing wheel regulator applied to adjust an axial position of the lower and the upper pressing wheel; and a floating sealing device applied to provide a reliable sealing effect for the feeding mechanism.

An insulated structure includes a plurality of walls and a cavity defined by the plurality of walls. A core material is disposed within the cavity. The core material includes particles with a diameter that is in a range of 80-1600 μm. The core material disposed within the cavity can have a density in a range of greater than 350 kg/m.sup.3 to 600 kg/m.sup.3. Methods of manufacturing the insulated structure also disclosed.

The present disclosure is directed to improved poly(arylene ether ketone) powders for use in laser sintering, powder coating, compression molding, or transfer molding.