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US 5,540,990 AGranted
Polyolefin line
AssigneeBerkley, Inc.
InventorRoger B. Cook
Life of this patent
Estimating the term…
Abstract
Monofilament lines are made from twisted gel spun polyolefin yarns that are heated and stretched under conditions sufficient to fuse adjacent filaments into a line having monofilament characteristics and high tenacity.
Claims8
A yarn comprising:
- at least two gel spun polyolefin filaments exhibiting a molecular weight of at least 400,000 that have been coated with a coating material that enhances fusion between said at least two said filaments and exposed to a temperature within the melting point range of said filaments for a time sufficient to soften and fuse surfaces of adjacent filaments whereby fused surfaces secure individual filaments together.
Dependencies are inferred from the claim text.