Abrasion-resistant spun articles
OwnerFranck Bouquerel, Joel Varlet +1inventors
InventorsFranck Bouquerel, Joel Varlet, Jean-Pierre Marchand
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Abstract
The invention relates to spun articles, threads (yarns), fibers or filaments which have improved abrasion resistance properties and which can be used to produce felts for paper machines. The invention more specifically relates to synthetic resin-based threads (yarns), fibers or filaments having nanometric-sized loads.
Claims19
Yarns, fibers and filaments based on synthetic resin, characterized in that they comprise between 0.05% and 20% by weight of nanometric-sized particles dispersed in the resin and in that they have an abrasion resistance which is improved by at least 5% compared with yarns, fibers and filaments made from an identical resin, of the same viscosity but not containing nanometric-sized particles, the abrasion resistance being defined by the number of to and fro motions of a three-roll roller assembly, over a set of 15 fixed yarns, that is required to break 13 of the yarns.
The yarns, fibers and filaments as claimed in one of the preceding claims, characterized in that the synthetic resin is chosen from polyamides, blends containing polyamides, and copolymers based on polyamides.
The yarns, fibers and filaments as claimed in one of the preceding claims, characterized in that the particles are of substantially spherical shape and have a mean diameter of less than or equal to 100 nanometers.
Dependencies are inferred from the claim text.