The present invention provides compositions and methods related to aerogel materials, including polyimide-based aerogels. In particular, aerogel materials optimized to have certain physical and chemical properties such as flexural and compressive strength are provided. In some embodiments, the aerogel materials can be at least partially carbonized.

Provided is an insulation product, optionally in a tubular form, that includes a coated foam insulation layer, where the foam insulation layer has a closed-cell structure. The coating can comprise a thermoplastic elastomer that seamlessly covers and is bonded to an outer surface of the elastomeric foam layer in the absence of an adhesive bonding material to protect the foam insulation layer, e.g., during outdoor insulation applications. A pipe where the insulation product is installed is also provided, as is a method of installing the insulation product, and a method of producing the insulation product.

A laminated article includes a thermoplastic resin expanded beads molded layer A having a volume Va and a tensile modulus TMa which is 2 to 100 MPa, and a thermoplastic elastomer expanded beads molded layer B having a volume Vb and a tensile modulus TMb which is 0.05 MPa or more and less than 2 MPa, the layers A and B being laminated and bonded to each other. Va:Vb is 90:10 to 50:50 and TMb/TMa is 0.025 or less.

The present disclosure provides a polymeric membrane. The polymeric membrane includes a first thermoplastic elastomer layer that comprises a styrenic thermoplastic. The thermoplastic elastomer layer has a foam structure. The polymeric membrane can further include an optional second thermoplastic elastomer layer in contact with the first polyolefin layer.

The present disclosure provides a polymeric membrane. The polymeric membrane includes a first thermoplastic elastomer layer. The thermoplastic elastomer is a styrenic thermoplastic. The polymeric membrane can further include an optional second thermoplastic elastomer layer in contact with the first polyolefin layer.

Provided is a PSA sheet capable of suitably preventing bubble formation caused by outgassing. This invention provides a PSA sheet comprising a PSA layer that forms an adhesive face. In an aging test where the adhesive face is press-bonded to a glass plate and stored at 50° C. for 24 hours, the PSA sheet has at least 5% post-aging non-bonding area Sa, with Sa defined as the ratio of all areas non-bonding to the glass plate relative to the total area of the adhesive face. The non-bonding areas have parts linearly extending along the adhesive face.

Embodiments disclosed herein include a stitched filtering fabric including a barrier layer configured to inhibit air flow through the filtering fabric, a yarn stitched through and forming a plurality of stitch holes in the barrier layer, and a first yarn layer comprising interlocking loops of the yarn. The barrier layer is configured to direct air flow through the yarn within the stitched holes.

The present disclosure provides advantageous hybrid knitted fabrics and composite materials including hybrid knitted fabrics, and improved systems/methods for utilizing and/or fabricating the hybrid knitted fabrics and composite materials. More particularly, the present disclosure provides layered composite materials including hybrid knitted fabrics, the layered composite materials advantageously configured for non-score deployable passenger airbag applications.

Open cell foam compositions are provided including a thermoplastic polymeric matrix and at least one filler. In some embodiments of the foam compositions, the filler includes nepheline syenite. Methods of making the foam compositions are described, the methods including (a) obtaining a composite materials containing a first thermoplastic polymer having a filler component and a blowing agent distributed therein; (b) coextruding the composite material with a second thermoplastic polymer and a third thermoplastic polymer to form a three-layer composition, wherein the three-layer composition includes a middle layer comprising an open cell foam formed from the foam composition, and the middle layer is disposed between the first and the second outer layers formed from the second and the third thermoplastic polymers, respectively; and (c) separating the middle layer from each of the first and the second outer layer. The first thermoplastic polymer is different from the second and the third thermoplastic polymers.

Provided is a PSA sheet capable of suitably preventing bubble formation caused by outgassing. This invention provides a PSA sheet comprising a PSA layer that forms an adhesive face. In an aging test where the adhesive face is press-bonded to a glass plate and stored at 50° C. for 24 hours, the PSA sheet has at least 5% post-aging non-bonding area Sa, with Sa defined as the ratio of all areas non-bonding to the glass plate relative to the total area of the adhesive face. The non-bonding areas have parts linearly extending along the adhesive face.