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US 7,401,460 B2Granted
Textile thread having a polytetrafluoroethylene wrapped core
OwnerKlaus Blochinventor
Life of this patent
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Abstract
A textile thread having a core and a sheath surrounding the core. The core, formed of high-tenacity synthetic organic endless fibers, is tightly wound by slit film tapes made of polytetrafluoroethylene (PTFE) in the S-direction and the Z-direction, or vice versa, and the slit film tapes forms a sheath.
Claims50
A textile thread having a core and a sheath surrounding the core, the textile thread comprising:
- the core, formed of high-tenacity synthetic organic endless fibers, a plurality of slit film tapes made of polytetrafluoroethylene (PTFE) tightly wound about the core in a S-direction and a Z-direction, and the slit film tapes forming a sheath, wherein the slit film tapes are twisted around a longitudinal axis and are wound around the core in a twisted state.
A textile thread having a core and a sheath surrounding the core, the textile thread comprising:
- the core, formed of high-tenacity synthetic organic endless fibers, a plurality of slit film tapes made of polytetrafluoroethylene (PTFE) tightly wound about the core in a S-direction and a Z-direction, and the slit film tapes forming a sheath, wherein high-tenacity filaments made of polyethylene with an ultra-high molecular weight (UHMW-PE) of 110 dtex to 1,760 dtex and a fine tensile strength of at least 20 cN/dtex and an elongation at tear of less than 8% are used for the core.
A textile thread, comprising:
- a core, the core formed of high-tenacity synthetic organic endless fibers that are identical to each other and made of polyethylene with an ultra-high molecular weight (UHMW-PE);
- and
- a sheath surrounding the core, the sheath including a plurality of slit film tapes made of polytetrafluoroethylene (PTFE), each of the slit film tapes tightly wound around the core in a S-direction and a Z-direction.
Dependencies are inferred from the claim text.