Pressure sensitive adhesive-coated articles comprising first and second layers each having first and second opposed major surfaces and between the first and second layers a series of first walls providing a series of microchannels, and methods for making the same. Embodiment of articles described herein are useful, for example, in cushioning applications where high levels of compression are desired.

Improvements in the extrusion of thermohardenable materials are achieved by cooling the material in the initial zone of the extruder and reducing residence time by use of a prescribed length to diameter ratio and screw speed, particularly useful for intermittent application during robotically controlled mass production.

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 KEE cap layer. The multilayer foam structure can be obtained by coextruding a multilayer structure comprising at least one foam layer composition layer with at least one cap layer composition layer, irradiating the coextruded structure with ionizing radiation, and continuously foaming the irradiated structure.

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.

The invention relates to a floor or wall panel and to a method of producing such panel. The panel comprise at least one core layer comprising at least one composite material, said composite material comprising at least one mineral filler, and at least one thermoplastic binder, which are present in a preferred ratio and composition such that a relatively light weight and rigid panel is obtained.

The method of making a compressed biocomposite body includes compressing a mass of biocomposite material comprised of discrete particles and a network of interconnected glucan-containing mycelia cells in the presence of heat and moisture into a compressed body having a density in excess of 18 pcf. Compression may take place batch wise in a press or continuously in a path of narrowing cross-section defined by a series of heated rollers.

The method of making a compressed biocomposite body includes compressing a mass of biocomposite material comprised of discrete particles and a network of interconnected glucan-containing mycelia cells in the presence of heat and moisture into a compressed body having a density in excess of 18 pcf. Compression may take place batch wise in a press or continuously in a path of narrowing cross-section defined by a series of heated rollers.

A polypropylene comprising within a range from 0.1 wt % to 4 wt % ethylene and/or C4 to C12 α-olefin derived units, one or more clarifiers, or both; wherein the polypropylene has a flexural modulus of at least 200 kpsi (0.05 in/min ASTM D790(A)) and an Mz/Mw of at least 4. The polypropylenes may be made by combining propylene and a comonomer with a Ziegler-Natta catalyst and at least two external electron donors, wherein the concentration of the electron donors is within a range from 1 to 100 ppm. The concentration of electron donors may be decreased to control the haze level of the polypropylene, and/or the level of comonomer derived units may be controlled to reduce the haze level of the polypropylene.

This invention relates to a surface finish manufacturing system and process and more particularly, but not exclusively, to a contrast surface finish manufacturing system and process for producing boards with a wood texture finish. The surface finish manufacturing system comprises a top layer and a bottom layer where part of the top layer is removed to expose part of the bottom layer.

Provided are a biodegradable sheet with antiviral properties, a manufacturing method thereof, and the use thereof. The biodegradable sheet comprises: a biodegradable polymer resin consisting of a polylactic acid-based polymer; or a composite degradable polymer resin comprising of a biodegradable resin and a petrochemical resin; and particles of an inorganic antiviral agent or aggregated composite particles of at least two inorganic antiviral agents incorporated into the biodegradable sheet so that the inorganic antiviral agent can be dispersed with a particle size of 100 to 900 nm.