A process can be used for producing (rigid) particle foams from polymer compositions containing at least one polymer having a glass transition temperature according to ISO 11357-2 of at least 180° C. with an underwater pelletization system.

Disclosed is a fiber-reinforced resin composite body (1) including: a thermosetting resin (2); a plurality of reinforcing fiber layers (4) stacked in the thermosetting resin (2); and a thermoplastic resin (5) dispersed in a form of particles in the thermosetting resin (2) between the plurality of reinforcing fiber layers (4).

Disclosed herein are laser activatable compositions. One composition may comprise: about 35% to about 75% by weight of at least one polyamide resin, preferably a 9,T resin; about 0.1% to about 20% by weight of a laser direct structuring additive; the laser activatable additive being operative to plate the composition upon being activated by a laser; about 0.5% to 20% by weight of a phosphorus-containing additive, preferably an organo phosphinate salt; and about 10% to 50% by weight of a reinforcing fiber, preferably a glass fiber having a substantially circular cross-section, the substantially circular cross-section having a diameter of 10 microns or less; where all weight percents are based on the total weight of the composition. Further embodiments provide compositions further comprising one or more organic, metallic, or mineral fillers, pigments, or combinations thereof. Also disclosed are methods of preparing these compositions and articles produced therefrom.