A soundproof structure includes one or more soundproof cells. Each of the one or more soundproof cells includes a frame having a hole portion, a vibratable film fixed to the frame so as to cover the hole portion, and one or more through holes drilled in the film. Both end portions of the hole portion of the frame are not closed, and the frame and the film are formed of the same material and are integrally formed. Therefore, it is possible to provide a soundproof structure and a soundproof structure manufacturing method capable of not only stably insulating sound due to increased resistance to environmental change or aging but also avoiding problems in manufacturing, such as uniform adhesion or bonding of a film to a frame.

Described is a high throughput machine for manufacture of large size 3D objects. The machine uses a combination of a large size main material dispensing head with a satellite lightweight material dispensing head. A motion system could move each material dispensing head along a path identical to the other dispensing head path or move it along a path different from the path of the other material dispensing head. Such complementary movement supports increase in machine throughput.

A method for desalinating a salt-containing polymer is provided. The salt-containing polymer contains a polyaryl ether and a salt. The method includes the steps of mechanically increasing the surface area of the salt-containing polymer to obtain a salt-containing polymer of increased surface area, and contacting the salt-containing polymer of increased surface area with an extractant to obtain a desalinated polymer containing the polyaryl ether, and a salt-containing extractant containing the extractant and the salt.

A method for producing a foamed blow-molded article, which includes extruding a physical blowing agent-containing foamable molten resin downwardly through a annular die to form a tubular foamed parison, clamping the foamed parison between split molds, and then blow molding it. At the latest before completion of the clamping of the foamed parison between the split molds, a gas is blown toward an inner peripheral surface of an upper portion of the foamed parison, the bottom portion of which has been closed, from a gas ejection outlet located within the foamed parison at a position immediately below the annular die to widen the foamed parison.

An embodiment includes a platform shape memory polymer system. Such an embodiment exhibits a blend of tunable, high performance mechanical attributes in combination with advanced processing capabilities and good biocompatibility. A post-polymerization crosslinking synthetic approach is employed that combines polyurethane and thiol-ene synthetic processes. Other embodiments are described herein.

An integral skin foam molded article includes: a skin formed by sewing a plurality of skin pieces in a hag shape; and a resin foam which is molded inside the skin integrally with the skin, wherein: at least one skin piece among the plurality of skin pieces has a surface material made of a natural leather, and includes a wadding material stacked on a back side of the surface material in a non-surface joined state and a lining material stacked on the wadding material; and in a shrinkage rate with respect to an in-plane compression load, a shrinkage rate of the liming material is smaller than a shrinkage rate of the wadding material.

There are provided recycled polystyrene polymers having a melt flow index of less than about 25 g/10 min. There are provided processes for recycling polystyrene waste. The processes can comprise dissolving said polystyrene waste in p-cymene under conditions to obtain a polystyrene/p-cymene mixture, adding the polystyrene/p-cymene mixture to a hydrocarbon polystyrene non-solvent under conditions to obtain precipitated polystyrene and washing the precipitated polystyrene with additional portions of hydrocarbon polystyrene non-solvent under conditions to obtain twice-washed polystyrene. The twice-washed polystyrene can optionally be dried and formed into polystyrene pellets. There is also provided recycled polystyrene obtained from such processes for recycling polystyrene waste.

A composite cushion includes a first cushioning element and a second cushioning element. The second cushioning element is formed in a manner that engages a peripheral engagement are of the first cushioning element to interlock the second cushioning element onto the first cushioning element. The second cushioning element may surround an outer periphery of the first cushioning element. In addition, a portion of the second cushioning element may be superimposed over a central cushioning area of the first cushioning element. Any superimposed central portions of the first and second cushioning elements may have an unsecured relationship (i.e., they are not directly secured to each other).

Described herein is a process for preparing a molded article including at least one structured surface, said process including applying a composition, preferably a foam material, into a mold having at least one structured inner surface and curing said composition to provide the molded structured article. The inner surfaces of the mold can be coated with a coating composition to obtain molded structured articles further including a flexible and durable coating layer. The present invention also relates to a structured molded article, preferably a shoe sole, which is obtained by the process.

Methods making a metal-organic framework extrudate in an extruder comprising the steps of: (a) mixing a metal-organic framework material with an extrusion aid to form a metal-organic framework extrudate mixture; and (b) extruding the metal-organic framework mixture in the extruder to produce the metal-organic framework extrudate where the pressure within the extruder is reduced between about 10% to about 55% when compared to pressure within the extruder when extruding the metal-organic framework material without the extrusion aid. The extrusion aid can be a liquid extrusion aid, a solid extrusion aid and/or a polymeric extrusion aid.