A polyolefin-based resin foamed sheet includes a polyolefin-based resin, wherein a thickness of the foamed sheet is 0.05-0.5 mm, a 25% compression hardness defined in JIS K6767(1999) is 20-100 kPa, a ratio of cell sizes in longitudinal and thickness directions is 9-30, a ratio of cell sizes in width and thickness directions is 9-30, and an average cell film thickness in the thickness direction of the foamed sheet is 2-7 μm.

The present invention provides a two-component foamable silicone composition comprising: a component A comprising (a) at least one polyorganosiloxane having at least one vinyl group, (b) at least one chemical blowing agent, and (c) at least one catalyst; and a component B comprising (d) at least one polyorganosiloxane having at least one vinyl group, and (e) at least one polyorganosiloxane having at least one —SiH group, and at least one expandable graphite in an amount of less than 10% by weight, based on the total weight of the component B, which exhibits excellent flame retardancy, good sealing performance, high compression rate, low gasket density, good dispensing continuity and good cell structure. The present invention also provides a preparing method and use thereof.

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 polyolefin-based resin foamed sheet includes a polyolefin-based resin, wherein a thickness of the foamed sheet is 0.05-0.5 mm, an apparent density is 200-500 kg/m.sup.3, a tensile strength at 100% elongation in at least one direction of a longitudinal direction (MD direction) and a width direction (TD direction) of the sheet is 3.5-12 MPa, and a ratio of a tensile breakage strength and the tensile strength at 100% elongation in at least one direction of the MD direction and the TD direction of the sheet is 1.0-1.8.

Composite particles are provided including a chemical blowing agent particle encapsulated within a shell including an uncrosslinked thermoplastic material. The uncrosslinked thermoplastic material exhibits at least a certain minimum complex viscosity at a decomposition temperature of the chemical blowing agent particle. Also described are compositions and foam compositions containing the composite particles. Further, articles are provided including the foam compositions, such as a sheet, tape, or hearing protection article. Methods of making and using the foam compositions are additionally described herein.

The present teachings generally provide for a reinforcing patch for stiffening vehicle panels. The reinforcing patch may be fabric free (e.g., free of any reinforcing layer). The reinforcing patch may be cut into small shapes, complex shapes, or both. The stiffening material may be free of a mesh or a fabric, which may allow the reinforcing patch material to be easily produced and easily reprocessed. The reinforcing patch may include one or more reinforcing particulates in combination with one or more discontinuous fiber components to obtain stiffness comparable to traditional patches which include a mesh/fabric layer.

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.

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.

One object of the present invention is to provide a polyolefin resin foam sheet suitable as a sealing substrate having both flexibility and heat resistance despite its thinness, and an adhesive tape in which the polyolefin resin foam sheet is used. In order to achieve this, the polyolefin resin foam includes a thermoplastic elastomer, wherein the endothermic peaks measured by a differential scanning calorimeter (DSC) occur in the range of at least 110° C. or more and 143° C. or less and at 153° C. or more, and the thermoplastic elastomer resin is contained at a ratio of 30% by mass or more and 60% by mass or less in 100% by mass of the polyolefin resin.

The present invention relates to a composition comprising a copper(II)-salt capable of being used as a catalyst, a process for the manufacture of said composition, the use of said composition as a catalyst, in particular, as catalyst for the reaction of at least one isocyanate compound with at least one isocyanate-reactive compound, in particular for the manufacture of polyisocyanate polyaddition products, such as polyurethanes, in particular, polyurethane foams.