Abstract: A latent heat storage material for ultra-cold applications, comprising at least one lithium salt, at least one solvent, and at least one nucleating agent, wherein the at least one nucleating agent is selected from one or a combination of sodium carbonate, lithium carbonate, potassium carbonate, barium fluoride, sodium nitrate, and/or lithium hydroxide.

Abstract: The invention relates to a process for providing a transport container system with a container internal temperature within a target range. The transport container system has a container having a receiving space wherein the temperature in the receiving space of the container is the container internal temperature and at least two PCM elements which can be removed from the container and inserted into the container. All PCM elements have the same phase change material. At least one first PCM element is tempered outside the container in such a way that the phase change material of this first PCM element is in a completely solid state. At least one second PCM element is tempered outside the container in such a way that the phase change material of this second PCM element is in a completely liquid state. The tempered PCM elements are arranged in the container.

Abstract: The invention relates on one hand to a celluloid-free table-tennis ball, preferably having a diameter of 38.5 to 48 mm, a weight between 2.0 and 4.5 grams, and a shell thickness (approximately) between 0.20 mm and 1.30 mm, where the shell is composed of plastic, whose principal component is an organic non-crosslinked polymer, which in its main chain has not only carbon atoms but also heteroatoms; and on the other hand also to a process of manufacturing a table-tennis ball of this kind, where mostly in a first step two or more shell parts are manufactured, these shell parts are joined in a subsequent step.

Abstract: The invention relates on one hand to a celluloid-free table-tennis ball, preferably having a diameter of 38.5 to 48 mm, a weight between 2.0 and 4.5 grams, and a shell thickness (approximately) between 0.20 mm and 1.30 mm, where the shell is composed of plastic, whose principal component is an organic non-crosslinked polymer, which in its main chain has not only carbon atoms but also heteroatoms; and on the other hand also to a process of manufacturing a table-tennis ball of this kind, where mostly in a first step two or more shell parts are manufactured, these shell parts are joined in a subsequent step.