Patent ID: 7122245
Filing Date: 2006-10-17
Classification: D01D,Y10T

Abstract:
1. A continuous multi-layer monofilament having a circular cross section and consisting of multiple layers that are extruded simultaneously in a single process step from a single spinning orifice, the monofilament having a first layer made from first plastic, a second layer bonded directly to the first layer, made from a second plastic that is an ethylene-vinylacetate copolymer or a methylacrylate copolymer, and a third layer bonded directly to the second layer and made from a third plastic, the second plastic being a bonding agent for bonding the first and third plastics, one of the first and third plastics being selected from the group which consists of polyethylene terephthalate (PET), polyamide (PA), polyamide copolymer, and polypropylene (PP), the other of the first and third plastics being selected from the group which consists of polyoxymethylene (POM), polyphenylene sulphide (PPS), polymethylmethacrylate (PMMA), polybutylene terephthalate (PBT), polyvinyl chloride (PVC), polyether etherketone (PEEK), and polyethylene naphthalate (PEN).