Abstract

Disclosed is a structure of a matrix, reinforced with a plurality of polymeric fibers protruding from at least a portion of the structure surface, the fibers being capable of endowing (attributing) the at least a portion of the surfacewith biological or chemical resistance. In some embodiments, the polymeric fibers, as further discussed hereinbelow, contain or are coated with at least one biological or chemical agent which further contributes to the endowment of biological or chemical resistance.

IPC Classes  ?

• C04B 16/06 - Macromolecular compounds fibrous
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• C04B 28/02 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
• C04B 20/00 - Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups and characterised by shape or grain distributionTreatment of materials according to more than one of the groups specially adapted to enhance their filling properties in mortars, concrete or artificial stoneExpanding or defibrillating materials
• C04B 20/10 - Coating or impregnating
• C04B 20/02 - Treatment
• C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
• C04B 111/20 - Resistance against chemical, physical or biological attack
• C04B 103/60 - Agents for protection against chemical, physical or biological attack
• C04B 103/67 - Biocides

Abstract

System for cutting multifilament strand into a plurality of pieces of filaments of the same given length includes a tension compensator (TC) and a cutter provided with flow directors. The TC having a surface across which a segment of said MFS is winded provides for retaining this segment of FMS at a predefined tension level. The flow directors provide for controlling the direction in which the cut pieces of filaments flow off the cutter. Additionally, methods for controlling the level of tension along a segment of the MFS and for controlling the direction in which the cut pieces of filaments flow off the cutter are provided as well.

IPC Classes  ?

• B23D 15/00 - Shearing machines or shearing devices cutting by blades which move parallel to each other