The process of foaming a polyolefin, e.g., polyethylene, composition using as a nucleator a combination an azodicarbonamide (ADCA) and a fluororesin at a ADCA:fluororesin weight ratio of 60:40 to 20:80. The synergic effect between these two nucleating agents results in a higher nuclei density and a foamed product with a smaller cell size as compared to processes using and products produced by the use of neat PTFE or neat ADCA alone as the nucleating agent.

The invention relates to a film laminate, including at least one compact decorative layer with a lacquer layer on the upper side and with a foam layer on the underside, where the density of the foam layer is more than 500 kg/m.sup.3. The invention further relates to the use of said film laminate for the coating of components for the interior trim of motor vehicles and to interior trim parts of motor vehicles provided with said film laminate. The foam layer is based on a composition which includes from 15 to 60 parts by weight of at least one thermoplastic vulcanizate, from 15 to 35 parts by weight of at least one high melt strength polyolefin, and from 30 to 60 parts by weight of at least one low density polyethylene (LDPE).

A foamed sheet including: a polylactic acid; and a filler, wherein the foamed sheet has a compressive stress of 0.2 Mpa or less when the cushioning coefficient of the foamed sheet is 10 or less; and wherein the foamed sheet has a puncture strength of 2 N or more when the sheet thickness of the foamed sheet is 2 mm.

The present disclosure relates to TPV compositions suitable for foaming, as well as foamed TPV compositions, methods of making the foregoing, and applications of various foamed TPV compositions. The TPV compositions comprise an at least partially vulcanized rubber component dispersed within a thermoplastic component comprising a thermoplastic resin and a propylene-based elastomer, oil, and optionally one or more additives. According to some aspects, the TPV composition may be made in part by preloading some portion of process oil prior to addition of the curative. TPV compositions provided herein are particularly suitable for foaming with thermo-expandable microsphere foaming agents.

The present invention is related to expandable vinyl aromatic polymers comprising comminuted coke, said comminuted coke having an average stack height (Lc) of carbon crystallites at least 4 nm, a volume median particle diameter (D50) comprised between 1 and less than 5 m and being characterized by a span (D90D10)/D50 below 2.5 Molded parts produced from the expandable vinyl aromatic polymers prove low thermal conductivities for a low foam density.

The present invention is related to expandable vinyl aromatic polymers comprising comminuted coke, said comminuted coke having an average stack height (Lc) of carbon crystallites less than 4 nm, a volume median particle diameter (D50) comprised between 0.8 and 4 m and being characterized by a span (D90D10)/D50 below 2.5. Molded parts produced from the expandable vinyl aromatic polymers prove low thermal conductivities for a low foam density.

Provided is a foamable polyamide composition comprising a) at least one polyamide comprising at least one carboxylic group; b) at least one thermoplastic rubber; and c) at least one compound having at least one isocyanate group; and optionally d) at least one filler and e) at least one additive.

The process of foaming a polyolefin, e.g., polyethylene, composition using as a nucleator a combination an azodicarbonamide (ADCA) and a fluororesin at a ADCA: fluororesin weight ratio of 60:40 to 20:80. The synergic effect between these two nucleating agents results in a higher nuclei density and a foamed product with a smaller cell size as compared to processes using and products produced by the use of neat PTFE or neat ADCA alone as the nucleating agent.

The present invention provides a foam molded body having excellent heat resistance (low heating dimensional change rate), excellent flame retardancy, and excellent storage stability, composite resin particles for producing the foam molded body, and the like. The present invention relates to composite resin particles comprising a polypropylene-based resin, an ethylene-vinyl acetate copolymer, and a polystyrene-based resin, foam particles of the composite resin particles, and a foam molded body of the foam particles.

The present invention relates to self-foaming hot melt adhesive compositions and methods of making and using the same. Self-foaming hot melt adhesive compositions are formed by admixing a dispersion concentrate including a chemical blowing agent and a compatible carrier (liquid or molten) with a molten base hot melt adhesive composition at a temperature below the decomposition temperature of the chemical blowing agent. The resolidified material is processed through a device that heats the material above the decomposition temperature of the chemical agent and cools it below such temperature before being dispensed. The device preferably includes sensors and a controller configured to prevent the material from accumulating an adverse thermal history during processing.