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US 6,543,177 B1Granted
Acoustically visible fishing net
AssigneeAtlantic Gillnet Supply, Inc.
InventorsDonald P. King, Norman L. Holy
Life of this patent
Estimating the term…
Abstract
Thermoplastic resin compositions are provided that possess improved acoustic reflectivity. The compositions are useful in preparing acoustically reflective fishing nets that can be used in a method of fishing to avoid the unwanted capture of cetaceans.
Claims10
A fishing net comprising an acoustically reflective monofilament comprising an acoustically reflective thermoplastic resin composition comprising a polymeric matrix,
- wherein said polymeric matrix is selected from the group consisting essentially of:
- (A) 70 to 97 parts by weight of a thermoplastic resin selected from the group consisting essentially of nylon 6 and nylon 6/6, and 3 to 30 parts by weight of one or more filler particles selected from the group consisting essentially of zinc, barium sulfate and iron oxide;
- and
- (B) 70 to 97 parts by weight of a thermoplastic resin consisting essentially of a polyolefin, and 3 to 30 parts by weight of one or more filler particles selected from the group consisting essentially of zinc and iron oxide.
1 more element
A method of avoiding the capture of unwanted cetaceans while fishing, comprising:
- placing a fishing net comprising an acoustically reflective monofilament comprising an acoustically reflective thermoplastic resin composition comprising a polymeric matrix, into a body of water;
- allowing fish to be caught in said net;
- and
- removing the net from the body of water, with said fish caught in the net,
- wherein said polymeric matrix is selected from the group consisting essentially of:
- (A) 70 to 97 parts by weight of a thermoplastic resin selected from the group consisting essentially of nylon 6 and nylon 6/6, and 3 to 30 parts by weight of one or more filler particles selected from the group consisting essentially of zinc, barium sulfate and iron oxide;
- and
- (B) 70 to 97 parts by weight of a thermoplastic resin consisting essentially of a polyolefin, and 3 to 30 parts by weight of one or more filler particles selected from the group consisting essentially of zinc and iron oxide.
5 more elements
A method of fishing, comprising:
- placing a fishing net comprising an acoustically reflective monofilament comprising an acoustically reflective thermoplastic resin composition comprising a polymeric matrix, into a body of water;
- allowing fish to be caught in said net;
- and
- removing the net from the body of water, with said fish caught in the net,
- wherein said polymeric matrix is selected from the group consisting essentially of:
- (A) 70 to 97 parts by weight of a thermoplastic resin selected from the group consisting essentially of nylon 6 and nylon 6/6, and 3 to 30 parts by weight of one or more filler particles selected from the group consisting essentially of zinc, barium sulfate and iron oxide;
- and
- (B) 70 to 97 parts by weight of a thermoplastic resin consisting essentially of a polyolefin, and 3 to 30 parts by weight of one or more filler particles selected from the group consisting essentially of zinc and iron oxide.
5 more elements
Dependencies are inferred from the claim text.