EXTRUSION COATED NON-TWISTED YARN

摘要

The present invention provides a non-twisted yarn and an extrusion coated reinforcement yarn and their methods of manufacture, by coating non-twisted glass filaments with a sizing composition and combining the filaments together side-by-side to provide a sized non-twisted yarn, wherein the sizing composition becomes ductile in a molten thermoplastic resin to free the non-twisted glass filaments for radially inward movement while in the molten thermoplastic resin to provide the non-twisted yarn with an essentially round cross-section suitable for extrusion coating with the molten thermoplastic resin.

主权项

1. An extrusion coated reinforcement yarn comprising:
non-twisted glass filaments, the glass filaments adhered with a sizing composition to form an individual non-twisted yarn strand; and a uniformly distributed thin, thermoplastic resin extrusion coating directly in contact with and surrounding the individual non-twisted yarn strand, wherein the thermoplastic resin penetrates and adhere to the outer surface of the yarn to form the extrusion coated reinforcement yarn, the thermoplastic resin comprising a polyethylene, an isotactic propylene, a syndiotactic polypropylene, a polyester, an ethylene-propylene copolymer, nylon, polyvinyl chloride, a copolymer of polybutylene and propylene, an ethylene propylene rubber, a thermoplastic polyolefin, a polyvinylidene chloride, or ethylene-propylene diene monomer (EPDM), wherein the extrusion coated reinforcement yarn has an essentially round cross-section.