Described herein are physically crosslinked, closed cell continuous multilayer foam structures that includes a foam layer comprising polypropylene, polyethylene, or a combination of polypropylene and polyethylene and a polyamide cap layer. The multilayer foam structure can be obtained by coextruding a multilayer structure comprising at least one foam composition layer and at least one cap composition layer, irradiating the coextruded structure with ionizing radiation, and continuously foaming the irradiated structure.

The present invention relates to heat transfer compositions comprising 1-chloro-1,2 difluoroethylene for use in refrigeration, air conditioning, heat pump systems, chillers, and other heat transfer applications. The inventive heat transfer compositions can possess reduced global warming potential while providing good capacity and performance while providing preferable flammability characteristics

Disclosed are methods of forming foam comprising: (a) providing a foamable composition comprising an isocyanate, a polyol and a physical blowing agent comprising at least about 50% by weight of hydrohaloolefin, including trans1233zd, and wherein the polyol comprises a polyol or mixture of polyols such that the hydrohaloolefin, including trans1233zd, has a solubility in said polyol of less than about 30%; and (b) forming a foam from said foamable composition.

The process for forming closed cell expanded low density polyethylene foam includes the steps of: providing a mixture including low density polyethylene pellets and an effective amount of hydrocarbon scavenger additives or degassing agents, such as glycerides; adding a primary blowing agent comprising one of liquid propane, liquid butane, and combinations thereof, to the mixture and gasifying the blowing agent to expand the low density polyethylene; forming the expanded low density polyethylene into sheets, curing the expanded low density polyethylene until 80%, generally at least 99%, of the primary blowing agent is dissipated from cells within the expanded low density polyethylene forming evacuated closed cell low density polyethylene sheets.

Provided is a phenolic resin foam laminate board in which a flexible surface material is arranged on at least upper and lower surfaces of a phenolic resin foam. The phenolic resin foam contains HCFO-1224yd(Z), has a density of not less than 20 kg/m.sup.3 and not more than 55 kg/m.sup.3, a closed cell ratio of 80% or more, an average cell diameter of not less than 60 μm and not more than 200 μm, a percentage of an area seeping out from the surface material is 30% or less, and content of HCFO-1224yd(Z) per space volume of 22.4×10.sup.−3 m.sup.3 in the phenolic resin foam is not less than 0.06 mol and not more than 0.35 mol.

The present disclosure relates to self-sealing tires, a process for making said self-sealing tires and the use of a silicone composition cured via a condensation cure chemistry to form a self-sealing layer designed to function as both (i) a self-sealing tire puncture material, i.e., to seal puncture holes in the tread region of tires if/when punctured by a foreign body and (ii) as an adhesive for sound-absorbing foams adapted to reduce the noise generated by tires during travel.

A method for preparing polyisocyanurate and polyurethane foams by the use of a liquid siloxane nucleating additive, and a foam-forming composition for preparing foams with improved thermal insulation performance, comprising an isocyanate component, an isocyanate-reactive component, a blowing agent, and a liquid siloxane nucleating additive.

A phenolic foam and method for manufacturing same are described herein. The foam is formed from a foamable phenolic resin composition, and a blowing agent, the phenolic foam comprising 1 to 5% by weight of red phosphorus based on the weight of the phenolic foam wherein said phenolic foam has a density of from 10 kg/m.sup.3 to 100 kg/m.sup.3, a closed cell content of at least 85% as determined in accordance with ASTM D6226 and wherein said foam has a FIGRA.sub.0.2 MJ of 120 W/s or less, when measured according to EN13823 and a thermal conductivity of 0.023 W/m.K or less, at 10° C., in accordance with EN 13166:2012. The foam has excellent thermal insulation performance and excellent fire performance.

The present invention relates to an expanded beads molded article containing a block copolymer of a polyethylene block and an ethylene-α-olefin copolymer block and having a density of 30 kg/m.sup.3 or more and less than 150 kg/m.sup.3 and a modulus of repulsion elasticity of 60% or more. The sole member of the present invention includes the expanded beads molded article of the present invention.

Disclosed is a multi-block copolyester ether thermoplastic elastomer foam prepared from an aromatic polyester compound and contains a short-chain structure, a long-chain structure and a residual functional group of a chain extender. The short-chain structure has both an aromatic dicarboxylic acid ethylene glycol ester block structure and an aromatic dicarboxylic acid butylene glycol ester block structure. The long-chain structure has a polyether diol block structure. Based on 100 parts by weight of the multi-block copolyester ether thermoplastic elastomer foam, a content of the polyether diol block structure is 45 parts by weight to 65 parts by weight. The multi-block copolyester ether thermoplastic elastomer foam has a melting point not higher than 170° C. and a melt flow index less than 20 g/10 min.