A powdery liquid-crystal resin for a press-molded article is disclosed having a bulk density of more than 0.05 g/cm.sup.3 and 0.5 g/cm.sup.3 or less. The powdery liquid-crystal resin preferably has a particle diameter distribution width as defined by JIS Z8825: 2013 of 3.0 or more and 12 or less. The powdery liquid-crystal resin preferably has an average particle diameter of 10 μm or more and 300 μm or less. The degree of crystallinity of the powdery liquid-crystal resin is preferably 20% or more and 70% or less.

A method of manufacturing building panels includes assembling a frame of a building panel. The frame defines at least one cavity and at least one injection aperture in fluid communication with the at least one cavity. The method also includes positioning the frame on one of a base and a shelf of a multi-panel consolidation device having a plurality of shelves, with the shelves being in an expanded configuration, and at least substantially enclosing the at least one cavity. The method also includes forcing the shelves of the multi-panel consolidation device into a collapsed configuration, and injecting an expandable polymer through the at least one injection aperture into the at least one cavity. The method further includes forcing the shelves into an expanded configuration after a predetermined period of time selected to permit the expandable polymer to form a foam bonded to the frame.

Membranes and methods of making and using the membranes are described herein. The membranes can include a foamed polymeric support and a plurality of inorganic particles disposed within the foamed polymeric support. The foamed polymeric support can contain a hydrophilic polymer such as polyethersulfone. The plurality of inorganic particles can include hydrophilic particles such as zeolite particles. In certain embodiments, the membrane can be used in humidifiers, such as those used in fuel cell systems. In some aspects, the membrane can be used for separating a fluid mixture comprising water. The membranes described herein are stable for high temperature applications.

Fans having fan blades with lightweight blade tips are disclosed herein. In one embodiment, for example, each fan blade includes a blade tip attached to an end portion of a main airfoil. The blade tip includes a shaped body that is molded over a support structure to form the shape and exterior surface of the blade tip.

The invention relates to a process for producing a biaxially oriented pipe by a) forming a polyethylene composition into a tube, wherein the polyethylene composition comprises high density polyethylene (HDPE) and a second polyethylene selected from linear low density polyethylene (LLDPE), low density polyethylene (LDPE) and a combination of LLDPE and LDPE and b) stretching the tube of step a) in the axial direction and peripheral direction to obtain the biaxially oriented pipe.

A formulation for producing a polymeric material including polypropylene, a chemical blowing agent, and optional components as described.

A polyethylene-based resin composition for injection stretch blow molding may include a copolymer of ethylene and one or more C4-C8 α-olefins. The composition may have a density, according to ASTM D792, that ranges from about 0.946 to 0.960 g/cm.sup.3 and a melt index (15), as measured according to ASTM D 1238 at 190° C. under a 5.0 kg load, ranging from about 5.0 to 50 g/10 min. A method of producing an article may include injection molding the composition to give a preform; and stretch-blowing the preform to provide the article.

The resin composite of the present invention has a polyamide-based resin expanded sheet, and a fiber-reinforced resin layer integrally laminated on a surface of the polyamide-based resin expanded sheet.

An expanded polypropylene resin particle is obtained from a base material resin having a melting point of 140° C. to 150° C., wherein the base material resin includes a polypropylene resin A including 3 weight % to 15 weight % of 1-butene and having a melting point of 130° C. to 140° C.; and a polypropylene resin B having a melting point of 145° C. to 165° C., and wherein the expanded polypropylene resin particle has an average cell diameter of 100 μm to 340 μm.

The present invention discloses multilayer blown films for shrink label and related applications. These multilayer blown films can comprise a core layer containing an ethylene polymer, and inner and outer layers containing conjugated diene monovinylarene block copolymers.