Manufacture of polyolefin fishing line
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United States of America Patent
Stats
-
Nov 21, 2000
Issued Date -
N/A
app pub date -
Dec 26, 1995
filing date -
Apr 27, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Yarns and fishing lines are made by a process that includes the step of exposing an opaque yarn made from ultrahigh molecular weight, gel spun polyolefin filaments to a temperature within the melting point range of the filaments for a time sufficient to at least partially fuse the contact surfaces of adjacent filaments. For ultrahigh molecular weight, gel spun polyethylene, this temperature is preferably within the range from about 150.degree.-157.degree. C. The surface fusion between and among filaments imparts desirable handling characteristics to the ultrahigh molecular weight, gel spun polyolefin yarns and fishing lines that are similar to those of a conventional monofilaments. Preferably, the temperature, residence time, and stretching ratio at the selected temperature are chosen to provide a fishing line exhibiting a tensile modulus within the range from about 230 g/d to about 780 g/d with a tenacity of at least 15 g/d.
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