The present invention relates to storage-stable coated particles and shaped bodies comprising said coated particles as well as a process for the preparation of storage-stable coated particles of a moldable thermoplastic particle foam comprising the steps of a.sub.1) bringing the particles into contact with an aqueous polyurethane dispersion, the polyurethane having a K-value according to DIN EN ISO 1628-1 2021 in the range from higher than 50 to lower than 100, preferably from 55 to 95, resulting in at least partly coated particles: a.sub.2) drying the coated particles. The present invention also relates to a process for the preparation of a shaped body comprising the above process as first step and a method for disposing said shaped body.

A syntactic foam is comprised of a matrix, a quantity of porous polymer beads in the matrix, each of which is smaller than 1.5 mm in width, and a quantity of hollow microspheres distributed within the matrix amongst the quantity of porous polymer beads. The largest of the hollow microspheres is at least 7 times smaller than the smallest of the porous polymer beads, and the hollow microspheres have a size distribution of 10 m.

Disclosed herein is a syntactic-foam part and associated methods for making the syntactic-foam part using a mold. The syntactic-foam part includes low-density spheres with at least one inner distribution media layer positioned within the low-density spheres at a predetermined height, that are encapsulated in a resin. The at least one inner distribution media layer facilitates resin flow along an entirety of the at least one distribution media layer before flowing out of the at least one inner distribution media layer, thus resetting a resin level at an infusion interface during an infusion process.