The present invention provides a polylactic acid resin expanded sheet useful for forming a resin molded article that can easily retain a predetermined shape. More specifically, the present invention provides a polylactic acid resin expanded sheet including a crystal nucleating agent and a crystallization accelerator at a predetermined ratio, which is prepared so that a crystallization degree becomes the predetermined state.

The present disclosure relates generally to an extruder for producing an extrudate. The present disclosure relates more particularly to an extruder including an extruder body having at least one material inlet and an exit opening. A rotatable outlet is coupled to the exit opening of the extruder body and is configured to rotate as the extrudate is expelled from the extruder body.

A seal for a vacuum lifter and method of manufacture wherein the seal has a continuous unbroken outer fluid resistant skin of elastomer which forms a boundary around a homogeneous cellular structure with no interior seams or joints.

A staple cartridge assembly for use with a surgical stapling instrument includes a staple cartridge including a plurality of staples and a cartridge deck. The staple cartridge assembly also includes a compressible adjunct positionable against the cartridge deck, wherein the staples are deployable into tissue captured against the compressible adjunct, and wherein the compressible adjunct comprises a first biocompatible layer comprising a first portion, a second biocompatible layer comprising a second portion, and crossed spacer fibers extending between the first portion and the second portion.

A three-dimensional printing system for preparing a three-dimensional object made at least partially of an expanded polymer includes a printing device configured to prepare an expandable polymer melt and deposit a strand of expandable, expanding or expanded polymer onto a surface and a three-dimensional movement device for to enable depositing of the strand of expandable, expanding or expanded polymer at a predetermined time at a precise position within the three-dimensional matrix. The printing device includes a feed section at an upstream end of the printing device, a heating section, a pressurizing section, a blowing agent supply line, a mixing section, a cooling section and a terminal printing head section at a downstream end of the printing device including a die configured to deposit the strand of the expandable, expanding or expanded polymer onto the surface.

The present invention discloses a multilayer composite rubber-plastic foam insulation material and a preparation method thereof. The composite rubber-plastic foam insulation material includes a two-layer structure; the two-layer structure includes an insulation layer and a first functional layer; the insulation layer and the first functional layer are both made of a rubber-plastic foam material; the first functional layer and the insulation layer are integrally molded by blending extrusion and vulcanization foaming, and the first functional layer and the insulation layer form an integral structure. The multilayer composite rubber-plastic foam insulation material provided by the present invention adopts a vulcanization foaming integral molding process, and not only ensures the thermal insulation property of the insulation layer, but also gives the functional layer corresponding functions by selecting different functional polymers, thereby satisfying a variety of personalized needs in engineering applications.

A device for forming a plastic component, which device has a body which is suitable for use in a device for producing a plastic component from a first compound, and which is formed in such a way that, when used in the device for producing plastic components, by being guided past the body, the first compound is brought into a form which has at least one cavity which is continuous in the direction of the guiding past. The device additionally has a line system arranged in the body, through which a second compound can be expelled from an end of the body, in order to introduce a second compound into the cavity while the first compound is guided past the body.

A three-dimensional (3D) printing system for preparing an object made at least partially of an expanded polymer including: a printing device for transporting and depositing a strand of expanded polymer including a blowing agent onto a surface and a 3D movement device for adjusting the position of the printing device in a predefined matrix allowing deposit of the strand of expanded polymer at a predetermined time and precise position within the matrix, the printing device includes: a feed section, a transporting section, a surface melting section, and a terminal printing head section for depositing the expanded polymer strand onto the surface, and all of sections have the same inner diameter, and the surface melting section including a solid-state welding element, a laser beam, a generator of hot gas or liquid and/or a generator of heat.

The present disclosure is directed to a physically crosslinked, closed cell continuous multilayer foam structure comprising at least one foam polypropylene/polyethylene layer with a TPU cap layer. The multilayer foam structure can be obtained by coextruding a multilayer structure comprising at least one foam composition layer with at least one cap composition layer, irradiating the coextruded structure with ionizing radiation, and continuously foaming the irradiated structure.

The present invention relates to a polylactic acid resin foam sheet, a molded article, a method for manufacturing same, and an apparatus for manufacturing same, and more specifically, to a multilayered polylactic acid foam sheet, a heat-resistant molded article, a method for manufacturing same, and an apparatus for manufacturing same, the multilayered polylactic acid foam sheet being characterized by including: a foam layer manufactured by extruding a composition including a polylactic acid, a foaming agent, a chain extender, a nucleating agent, and a crystallization accelerator; and a non-foam layer foamed on one surface or both surfaces of the foam layer and manufactured by extruding a composition including a polylactic acid and a crystallization accelerator, wherein the foam layer and the non-foam layer are manufactured by co-extrusion in a single process.