A foaming resin composition of the present invention contains an aromatic vinyl-based resin and zinc oxide, wherein the size ratio (B/A), in which peak A is a 370 nm to 390 nm region and peak B is a 450 nm to 600 nm region, of zinc oxide is approximately 0.01 to approximately 1 when photoluminescence is measured, and the BET surface area thereof is approximately 1 m.sup.2/g to approximately 10 m.sup.2/g.

An object of the present invention is to provide a resin composition that can produce a foam molded body having a beautiful appearance while exhibiting excellent mechanical properties. The above object is achieved by a resin composition for producing foam particles, the resin composition comprising a base resin containing a polycarbonate resin having a glass transition temperature of 140 to 155° C. and an amorphous polyester resin having a glass transition temperature of 100 to 130° C., and the amorphous polyester containing a unit derived from a cyclic diol.

The present disclosure is directed to provide polyamide-based resin pre-expanded particles which can serve as a raw material of a polyamide-based resin foam shaped product having an excellent mechanical strength. Polyamide-based resin pre-expanded particles of the present disclosure contain a polyamide-based resin. The polyamide-based resin pre-expanded particles have an expansion ratio of 1.0 or more, wherein the expansion ratio is a ratio (ρ1/ρ2) of a density ρ1 (g/cm.sup.3) to a density ρ2 (g/cm.sup.3) after being pressurized with air at 0.9 MPa and then heated for 30 seconds with saturated steam at a temperature higher than a thermal fusion temperature by 5° C.

A system for curing a composite part, includes a mandrel configured to receive and support the uncured composite part; a plurality of expandable pellets disposed on the uncured composite part; and a mold configured to hold the mandrel, the uncured composite part, and the plurality of expandable pellets, wherein the plurality of expandable pellets are configured to expand and apply a positive pressure to the uncured composite part according to a change in condition or triggering event, and wherein each of the plurality of expandable pellets includes a blowing agent, a polymer matrix configured to hold the blowing agent, and a flexible skin configured to encapsulate the polymer matrix and the blowing agent, wherein the flexible skin is at least partially permeable with respect to the blowing agent or a gas released by the blowing agent.

A system for curing a composite part, includes a mandrel configured to receive and support the uncured composite part; a plurality of expandable pellets disposed on the uncured composite part; and a mold configured to hold the mandrel, the uncured composite part, and the plurality of expandable pellets, wherein the plurality of expandable pellets are configured to expand and apply a positive pressure to the uncured composite part according to a change in condition or triggering event, and wherein each of the plurality of expandable pellets includes a blowing agent, a polymer matrix configured to hold the blowing agent, and a flexible skin configured to encapsulate the polymer matrix and the blowing agent, wherein the flexible skin is at least partially permeable with respect to the blowing agent or a gas released by the blowing agent.

A porous fluorine resin film in which a fibril structure is stabilized through impregnation coating of a water-repellent and oil-repellent polymer having a high oil repellency grade, and free shrinkage also proceeds before impregnation and application of the water-repellent and oil-repellent polymer, thereby improving dimensional stability, and a method for preparing the porous fluorine resin film.

A foamed pellet material contains a composition (Z1) that contains a thermoplastic polyurethane (TPU-1) and at least one plasticizer (W). The composition (Z1) has a Shore hardness within a range from 15 A to 43 A. A process can produce a foamed pellet material of this kind. The foamed pellet material can be used for the production of a molded article.

A foamed pellet material contains a composition (Z1) that contains a thermoplastic polyurethane (TPU-1) and at least one plasticizer (W). The composition (Z1) has a Shore hardness within a range from 15 A to 43 A. A process can produce a foamed pellet material of this kind. The foamed pellet material can be used for the production of a molded article.

Since most elastomer foam molded bodies use a petroleum-derived resin as a base resin, there is a demand for an elastomer foam molded body with high rebound resilience and low environmental load. An object of the present invention is to provide a foam molded body having a rebound resilience coefficient equivalent to that of a petroleum-derived polyamide-based elastomer foam molded body, and excellent moldability during in-mold foaming; foam particles; and a method for producing the foam molded body.

The present invention relates to a polyamide-based elastomer foam molded body comprising 50 to 100 mass % of a block copolymer resin containing a polyamide block as a hard segment and a polyether block as a soft segment, wherein the copolymer resin has a biobased product content as measured by ASTM D6866 of 30% or more.

Since most elastomer foam molded bodies use a petroleum-derived resin as a base resin, there is a demand for an elastomer foam molded body with high rebound resilience and low environmental load. An object of the present invention is to provide a foam molded body having a rebound resilience coefficient equivalent to that of a petroleum-derived polyamide-based elastomer foam molded body, and excellent moldability during in-mold foaming; foam particles; and a method for producing the foam molded body.

The present invention relates to a polyamide-based elastomer foam molded body comprising 50 to 100 mass % of a block copolymer resin containing a polyamide block as a hard segment and a polyether block as a soft segment, wherein the copolymer resin has a biobased product content as measured by ASTM D6866 of 30% or more.