The present invention relates to a thermally expandable composition comprising at least one peroxidically crosslinking polymer which does not contain glycidyl (meth) acrylate as a monomer in copolymerized form; at least one polymer, which is polymerized with glycidyl (meth) acrylate as a monomer present in a proportion of from 2 to 20% by weight, based on the respective polymer; at least one peroxide; and at least one endothermic chemical propellant, moldings containing this composition, and a method for sealing and filling cavities in components, for reinforcing or stiffening components, in particular hollow components, and for bonding movable components using such molded bodies.

The present disclosure provides an adhesive tape, a backlight module, a display device, and a method for manufacturing a backlight module. The adhesive tape includes: an adhesive body layer; an expandable structure layer on a side of the adhesive body layer and configured to fill a gap between the adhesive tape and a light guide plate of a backlight module through an expansion of the expandable structure layer.

A process for producing a molded article involves providing a thin-walled, gas-permeable shell; filling the shell with a foamed pelletized material composed of a polymer; and welding the foamed pelletized material to obtain the molded article. Molded articles are obtainable or obtained by such a process, and can be used as a footwear sole, part of a footwear sole, a mattress, a seat cushion, an underlay, a grip, a protective film, a component in automobile interiors and exteriors, a gymnastics mat, a body protector, a trim element in automobile construction, a sound insulator, a vibration damper, a cushion, a bicycle saddle, a toy, a tire or part of a tire, a covering for a track and field surface, a covering for a sports hall or a pathway, a damping layer or a damping core in a sandwich element, or a packaging.

The present invention aims to provide a resin foam, a resin foam sheet, an adhesive tape, a member for a vehicle, and a member for a building that are capable of exhibiting very high sound insulation properties. Provided is a resin foam having a multitude of cells, the resin foam containing: a thermoplastic resin; and a plasticizer, the resin foam having a minimum loss factor of a primary anti-resonance frequency in the range of 20° C. to 60° C. of 0.05 or higher and a secondary anti-resonance frequency in the range of 20° C. to 60° C. of 300 to 800 Hz as measured by mechanical impedance measurement (MIM) in conformity with JIS G0602.

An expandable structural adhesive film for bonding metal parts. The adhesive film comprises at least one first epoxy compound; at least one epoxy curing agent; at least one blowing agent; at least one film-forming agent; and at least one impact modifier. The structural adhesive film exhibits an elongation at break of at least 300% according to tensile test DIN EN ISO 527 and a free expansion rate according to EN 2667-3 of at least 45%.

Provided is a flame retardant and heat insulating sheet having high flame retardancy and a high heat insulating property. Also provided is a flame retardant heat insulator including such flame retardant and heat insulating sheet. A flame retardant and heat insulating sheet according to one embodiment includes: a flame retardant and heat insulating layer formed from a resin composition (A); and a heat insulating layer, wherein the resin composition (A) contains: a binder resin; a low-melting point inorganic substance; a high-melting point inorganic substance; and voids. A flame retardant and heat insulating sheet according to one embodiment includes: a flame retardant and heat insulating layer formed from a resin composition (B); and a heat insulating layer, wherein the resin composition (B) contains: a binder resin that produces a high-melting point inorganic substance when heated; a low-melting point inorganic substance; and voids and/or a void-forming agent.

A polyurethane foam may include an isocyanate polymer component and a polyol component. The polyol component may include a polyol having a molecular weight of at least about 500 kg/mol and not greater than about 6000 kg/mol. The polyurethane foam may have an elongation of at least about 500%. The polyurethane foam may further have a density of at least about 250 g/L and a tensile strength of not greater than about 1000 kPa.

A cross-linked polyolefin resin foam of the present invention has a total light transmittance and a thickness that satisfy a predetermined condition, and has a reflection color difference Δ* of −10 to 16, a reflection color difference Δa* of −3 to 3, and a reflection color difference ΔL* of 50 or more. According to the present invention, there can be provided a cross-linked polyolefin resin foam that can suppress a change in color tone of transmitted light while ensuring transparency, and a pressure-sensitive adhesive tape, layered product, formed product, and display member that include such a cross-linked polyolefin resin foam.

The present application relates to a thermally expandable composition containing at least one peroxide cross-linking polymer, at least one peroxide and at least one endothermic, chemical blowing agent, the blowing agent comprising at least one solid, optionally functionalized, polycarboxylic acid or the salt thereof and at least one urea derivative according to the formula (I) as defined herein; as well as shaped bodies containing the composition and to a method for sealing and filling voids in components, for strengthening or reinforcing components, in particular hollow components, and for bonding mobile components using shaped bodies of this type.

The disclosed latex system comprises a one-component, closed-cell, semi-foam, mastic sealant using gas-filled, flexible, organic microspheres to create a product that is elastic and compressible under pressure without protruding in an outward direction when compressed, thereby allowing the applied sealant to compress in an enclosed, maximum-filled channel unlike typical mastic sealants (while retaining the ability to rebound). This allows the sealant to function as a gasket, and, once fully cured, to have properties including vibration damping, insulating, and condensation resistance. The sealant can be formulated as an air barrier or a vapor barrier and at various degrees of moisture resistance. It may be applied by different packaging variations including aerosol can (bag in can or bag on valve), airless sprayer, cartridge tubes, foil tubes, squeeze tubes, and buckets to be applied using a brush, trowel, spatula, etc. The disclosed mastic sealant can also be formulated to be smoke-resistant and flame-resistant.