Disclosed herein are at least partially water soluble compositions for use in 3D printing. The compositions comprise a mixture of polymeric materials that can be printed using existing 3D printing devices to form a support scaffold for overhanging parts of a 3D object to be printed. The 3D object can be printed such that at least a portion of the 3D object is printed onto the support scaffold. After printing, the support scaffold can be removed from the 3D object by treatment with water, such as by immersion in water. The compositions can comprise a mixture of one or more water soluble polymers and one or more water insoluble polymers.

A manufacturing method for a blow-molded panel, and a blow molding apparatus, wherein the blow-molded panel is a double-layer structure or a multilayer structure and is formed by means of blow molding, and respective layers thereof can be made of different materials so that the blow-molded panel has relative good performance.

Disclosed is a non-flammable thermal insulating composite substrate for motor vehicles including: a textile component constituted by a layer of needle-sewn non-woven fabric composed of a percentage of pre-oxidized polyacrylonitrile fiber included between 40% and 70%, preferably 58% and of the remaining percentage of polyethylene glycol-terephthalate fiber, the textile component having weight preferably 400 gr/m.sup.2; and a barrier fixed to the textile component using a spreading process, constituted by a thermoplastic resin based on low density polyethylene added with non-halogen flame retardants, the barrier having weight preferably 100 gr/m.sup.2. The composite substrate has the following features: a thickness included between 2 mm and 5 mm, preferably 3.8 mm; a weight included between 300 gr/m.sup.2 and 700 gr/m.sup.2, preferably 500 gr/m.sup.2; odorless; no emission of fumes; dimensionally stable, even at heatstroke, with a maximum variation of 1%; and non-flammability.

The present disclosure relates to an additive manufacturing (AM) method for making a three-dimensional (3D) object, using a part material (M) comprising at least one poly(ether ketone ketone) (PEKK) polymer, in particular to a 3D object obtainable by Fused Deposition Modelling (FDM) or Fused Filament Fabrication (FFF) from this part material (M).

A process for manufacturing a tubular film such as an edible casing film or a packaging film. The process includes the steps of providing a preblended powder composition containing a polymer matrix, a plasticizer, and water; feeding the preblended powder composition to an extruder; heating the preblended powder composition to a temperature above 100 degrees Celsius for a sufficient time to fully hydrate the polymer matrix and to convert the powder composition to a flowable mass; and extruding the flowable mass through a tubular die of the extruder to form the tubular film. The tubular film comprises: about 40-75 wt % polymer matrix; about 10-35 wt % plasticizer; and about 10-35 wt % water. The polymer matrix component is fully hydrated under the temperature, pressure and shear conditions inside the extruder, and may have a component which is only fully hydrated at temperatures above about 100 degrees Celsius.

This invention relates to the flexible packaging, either as sheet, roll, bag, sachet, or other forms, which is biodegradable and edible, and could be used as packaging for solid, semisolid, and liquid, which is featured by the composition of biopolymers, at least two of different natural and renewable biopolymers, and the manufacturing method thereof.

Process for producing a polymer composition, a polymer composition obtainable by said process and the use of said polymer composition as adhesive polymer composition and for the production of a multilayer structure, such as a three-layer metal pipe coating, with improved peel strength.

This invention has an object to provide: a resin composition excellent in impact resistance, flexibility, and recyclability obtained as a result of blending a specific ethylene-vinyl acetate copolymer composition with a brittle resin, a recycled resin, or a composite resin including two or more kinds of different resins mixed therein; and a molded article produced with use of the resin composition. The resin composition includes: a thermoplastic resin (A) in an amount of not less than 1 weight % and not more than 99 weight %; and an ethylene-vinyl acetate copolymer composition (B) in an amount of not less than 1 weight % and not more than 99 weight %, the ethylene-vinyl acetate copolymer composition (B) including two or more kinds of ethylene-vinyl acetate copolymers having different vinyl acetate contents, the total amount of (A) and (B) being 100 weight %.

Elastomeric laminates and methods of making elastomeric laminates comprising an elastomeric film point-bonded to an carded, spunbond or bicomponent nonwoven substrate to create bond sites, wherein each bond site is from about 3 mm to about 10 mm from each adjacent bond site, and further wherein the laminate comprises rugosities, optionally having a height of greater than 2 mm.

The invention relates to a method for producing a compound or a film containing thermoplastic starch, an alpha-hydroxycarboxylic acid ROHCOOH, in which R is CH.sub.2 or CH.sub.3CH.sub.2, in an amount of from 0.1 to 5, preferably 0.1 to 3, particularly preferably 0.1 to 1 wt. % in relation to the thermoplastic starch, and a thermoplastic polymer, in which method the compound or the film is exposed during or after its extrusion to an additional heating step to 100-140° C. A thermoplastic starch usable for the production of the compound, a compound produced by the method, and a transparent film produced from such a compound are also described.