Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component. Printed parts having piezoelectric properties may be formed using compositions comprising a plurality of piezoelectric particles non-covalently interacting with at least a portion of a polymer material via - bonding, hydrogen bonding, electrostatic interactions stronger than van der Waals interactions, or any combination thereof. The piezoelectric particles may be dispersed in the polymer material and remain substantially non-agglomerated when combined with the polymer material. The polymer material may comprise at least one thermoplastic polymer, optionally further including a polymer precursor. The compositions may define an extrudable material that is a composite having a form factor such as a composite filament, a composite pellet, a composite powder, or a composite paste. Additive manufacturing processes using the compositions may comprise forming a printed part by depositing the compositions layer-by-layer.

Provided herein is a blown film material comprising base polymer and an active agent that acts on, interacts or reacts with a selected material. The active agent may be a desiccant material capable of absorbing moisture. The resulting blown film material will have useful applications. Also provided herein are related methods of manufacture.

Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component. Printed parts having piezoelectric properties may be formed using compositions comprising a plurality of piezoelectric particles non-covalently interacting with at least a portion of a polymer material via - bonding, hydrogen bonding, electrostatic interactions stronger than van der Waals interactions, or any combination thereof. The piezoelectric particles may be dispersed in the polymer material and remain substantially non-agglomerated when combined with the polymer material. The polymer material may comprise at least one thermoplastic polymer, optionally further including a polymer precursor. The compositions may define an extrudable material that is a composite having a form factor such as a composite filament, a composite pellet, a composite powder, or a composite paste. Additive manufacturing processes using the compositions may comprise forming a printed part by depositing the compositions layer-by-layer.

The present invention relates to a method of producing an article, comprising the step of producing the article by means of an additive manufacturing method from a build material comprising an aromatic polycarbonate and interference pigments and/or pearlescent pigments from the group of the metal oxide-coated micas. The invention likewise relates to an article obtainable by the method. The build material further comprises 0.05% by weight to 3% by weight of anhydride-modified -olefin polymer.

A method of producing multi-ply foil sheets intended for the manufacturing of protective covers for body parts, in particular gloves or packaging, comprising of at least two individual plies of film (12) stacked on top of each other and interconnected by means of week and non-continuous bonding, achieved by thermal embossing or ultrasonic welding. The invention also relates to personal protective equipment (PPE) or packaging made of the same multi-ply films.

A method of producing multi-ply foil sheets intended for the manufacturing of protective covers for body parts, in particular gloves or packaging, comprising of at least two individual plies of film (12) stacked on top of each other and interconnected by means of week and non-continuous bonding, achieved by thermal embossing or ultrasonic welding. The invention also relates to personal protective equipment (PPE) or packaging made of the same multi-ply films.

A foam precursor, a foam, and methods for making the foam precursor and the foam is described. The foam precursor includes unmodified starch, polybutylene adipate-co-therephthalate (PBAT), and water. A PBAT weight percent representative of the PBAT included in the foam precursor is from 10% to 40%. A starch weight percent representative of the unmodified starch included in the foam precursor is greater than the PBAT weight percent. A water weight percent representative of the water included in the foam precursor is 20% or less. The PBAT weight percent is greater than the water weight percent. A density of the foam precursor is from 400 kg/m.sup.3 to 1500 kg/m.sup.3.

A multilayer film made from or containing a skin layer (A) and a core layer (B), wherein: the skin layer (A) is made from or containing a polyolefin composition (I) made from or containing:
(a) from 70% to 95% by weight of a propylene copolymer, having up to and including 10.0% by weight of units deriving from an alpha-olefin and from 10% to 20% by weight of a fraction soluble in xylene at 25 C.; and (b) from 5% to 30% by weight of a butene-1 polymer,
wherein the amounts of (a) and (b) are based on the total weight of (a)+(b); and the core layer (B) is made from or containing a copolymer of propylene with up to and including 25% by weight of an alpha-olefin.

Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component. Printed parts having piezoelectric properties may be formed using a composite filament comprising a plurality of piezoelectric particles dispersed in a thermoplastic polymer. The composite filaments may be formed through melt blending and extrusion. The composite filament is compatible with fused filament fabrication and has a length and diameter compatible with fused filament fabrication, and the piezoelectric particles are substantially non-agglomerated and dispersed along the length of the composite filament. The piezoelectric particles may remain substantially non-agglomerated when dispersed in the thermoplastic polymer through melt blending. Additive manufacturing processes may comprise heating such a composite filament at or above a melting point or softening temperature thereof to form a softened composite material, and depositing the softened composite material layer by layer to form a printed part.

In a fully recyclable container and a method of manufacturing the same the container includes a cap, a shoulder, a body, a base, and a liner. The cap, the shoulder, and the base are made of biodegradable plastic by injection molding while the body is made of waterproof paper. The cap, the shoulder, and the base are detachably connected to form a housing of the container. The liner is formed inside the housing by blow molding of biodegradable plastic. The respective components of the container are completely made of biodegradable or bio-decomposable material and able to be disassembled for sorting and recycling. Thereby the fully recyclable container completely meets requirements of environmental protection and recycling.