Tooling and components of an injection-molding system may be used to mold a foam article. The tooling and components may include features that control parameters of the injection-molding and foaming process, such as temperature, pressure, shot size, shot placement, and the like.

Tooling and components of an injection-molding system may be used to mold a foam article. The tooling and components may include features that control parameters of the injection-molding and foaming process, such as temperature, pressure, shot size, shot placement, and the like.

A composite foam article is disclosed herein. The composite foam article comprises a surface layer and a base layer with an interface therebetween. The surface layer comprises a high-resiliency polyurethane foam having an impact resilience of greater than about 50% when tested in accordance with ASTM D3574-17, and presents a seating surface. The base layer comprises a viscoelastic polyurethane foam having an impact resilience of less than about 50% when tested in accordance with ASTM D3574-17, and presents a mounting surface opposite the seating surface. The surface layer and the base layer are present in a thickness ratio of from about 17:3 to about 2:3.

This invention relates to novel macromers prepared from amine based polyols, preformed stabilizers prepared from these macromers, and to polymer polyols prepared from the preformed stabilizers. The present invention also relates to processes for preparing these compositions.

This invention relates to novel macromers prepared from amine based polyols, preformed stabilizers prepared from these macromers, and to polymer polyols prepared from the preformed stabilizers. The present invention also relates to processes for preparing these compositions.

A process for producing a polymeric article is provided that includes: sequentially filling a female mould (11) with a first, second, and third batches, wherein the first and third batches include first and third polymeric materials (1p, 3p), and the second batch includes a second polymeric material (2p) and a blowing agent (2b), closing the thus filled cavity with a lid (12) to form a mould defining a closed cavity (10c) of constant volume in time, heating the mould (10) to a processing temperature, to melt the first, second, and third polymeric materials (1p-3p) and to expand the second polymer agent by activation of the blowing agent, cooling and removing the lid (12) to open the cavity and extracting the polymeric article. At least the second polymeric material (2p) includes at least 50 wt. % of recycled polymer in the form of shredded flakes.

A system including an injector, a press, and a robotic conveyance is used to form a physically foamed article of footwear component from a single-phase solution of a polymeric composition and a supercritical fluid. The parameters and features of the system are configured for the formation of the footwear component in an automated manner with enhanced throughput by the system.

A foamed molded article of a liquid crystalline aromatic polyester resin composition is described. The foamed molded article includes an inner layer and an outer layer: the inner layer is a foamed layer, the outer layer is a non-foamed layer, and a weight reduction rate represented by the following formula (1) is 20% or more and 90% or less,

weight reduction rate (%)=100(dBdA)/dB(1)

In formula (1), dB represents a true density (g/cm.sup.3) of the liquid crystalline aromatic polyester resin composition and dA represents an apparent density (g/cm.sup.3) of the foamed molded article.

A method produces porous materials by expansion of polymer gels. The porous materials can be a micro- or nano-porous polymer materials.

A method produces porous materials by expansion of polymer gels. The porous materials can be a micro- or nano-porous polymer materials.