The present application relates to a thermally expandable composition containing an endothermic chemical blowing agent, to shaped bodies containing said composition and to a method for sealing and filling cavities in components, for strengthening or reinforcing components, in particular hollow components, and for bonding movable components using shaped bodies of this type.

A reinforcing sheet including one or more layers of a reinforcing material, and a thermosetting adhesive associated with the reinforcing material, wherein the thermosetting adhesive includes a curing agent, and an epoxy-modified dimerized fatty acid combined with an epoxy terminated polyurethane interpenetrating network.

A foam is obtained by foaming a resin composition, which comprises a hydroxyl-terminated hydrogenated styrenic block copolymer of (A-B)n-OH, (B-A)n-OH, A(B-A)n-OH, or B(A-B)n-OH having a hydroxyl group at the terminal; wherein the A block comprises a styrene monomer unit and the B block comprises a conjugated diene monomer unit; wherein the hydroxyl-terminated hydrogenated styrenic block copolymer comprises 1060% by weight of the styrene monomer unit; 40 mol % or more of the conjugated diene monomer unit is hydrogenated; and the hydrogenated styrenic block copolymer has a weight average molecular weight of about 30000 to about 200000; the 1,2-vinyl bond content in the conjugated diene monomer unit of the hydroxyl-terminated hydrogenated styrenic block copolymer is in the range of 5 to 60 mole % prior to hydrogenation.

The present invention relates to a cross-linked polyolefin resin foam obtained by cross-linking and foaming a polyolefin resin composition containing at least a polyolefin resin, wherein the cross-linked polyolefin resin foam has a total light transmittance of 45% or more at the thickness of 0.3 mm or more and less than 1.0 mm, and the cross-linked polyolefin resin foam has a total light transmittance of 30% or more at the thickness of 1.0 mm or more and 5.0 mm or less. The present invention provides a cross-linked polyolefin resin foam having excellent light transmittance.

The invention relates to an autonomously curable and foamable two-component acrylic adhesive that upon combining the two components with one another spontaneously foams and cures thereby forming a cured foamed acrylic adhesive. The cured foamed acrylic adhesive may have utility as structural adhesive, sealant, noise dampening material and the like. The cured foamed acrylic adhesive is particularly useful for structural reinforcement within cavities of structural elements, e.g. of automotive vehicles, aircrafts, railway carriers, or other means of transportation.

The present invention relates to a cross-linked polyolefin resin foam obtained by cross-linking and foaming a polyolefin resin composition containing at least a polyolefin resin, wherein the cross-linked polyolefin resin foam has a total light transmittance of 45% or more at the thickness of 0.3 mm or more and less than 1.0 mm, and the cross-linked polyolefin resin foam has a total light transmittance of 30% or more at the thickness of 1.0 mm or more and 5.0 mm or less.

The present invention provides a cross-linked polyolefin resin foam having excellent light transmittance.

In certain embodiments, the disclosed sealant comprises a one-component, closed-cell, semi-foam, 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 sealant can also be formulated to be smoke-resistant and flame-resistant.

A urethane adhesive composition comprising a main material that includes a polyol, an inorganic blowing agent, and carbon black, and a curing material. The composition is designed to facilitate easy separation of adherends by applying a heat source, which activates the inorganic blowing agent and reduces the adhesive strength, enabling efficient recycling and compliance with environmental regulations.

A method comprising combining polycarbonate thermoplastic with a decomposition initiator to decompose polycarbonate, heating the polycarbonate thermoplastic and decomposition initiator to a temperature between 120 C. and 250 C. for the release of carbon dioxide, and wherein the polycarbonate thermoplastic and decomposition initiator are combined with one or more additional components for forming a heat activated material that foams as a result of the release of carbon dioxide.

The invention relates to a rubber-based composition that can be thermally cured at reduced temperature while retaining performance over a broad cure temperature window comprising at least one solid rubber, at least one diene-based polymer or copolymer containing an olefinic double bond and/or an aromatically substituted olefin, suitable for undergoing curing with a curing system present as quinone dioxime, peroxides and optional multifunctional acrylates, preferably in the absence of elemental sulfur. The cured composition exhibits improved reversion resistance and adhesion strength on aluminum.