Biodegradable polyester copolymers
AssigneeWright & McGill Co.
InventorPatrick J. Ferguson
Life of this patent
Estimating the term…
Abstract
In accordance with embodiments provided herein, biodegradable filament suitable for use as fishing line and/or fishing net prepared from a polyester copolymer is provided. Embodiments of biodegradable filament is prepared from a polymer blend comprising from about 60% by weight to about 99.9% by weight of polybutylene succinate (PBS) and from about 0.1% by weight to about 40% by weight of a second polymer selected from the group consisting of polycaprolatone (PCL), polyglycolic acid (PGA), and polylactic acid (PLA).
Claims32
1-8. (canceled)
A method for producing biodegradable filament comprising:
- providing a polymer blend comprising from about 80% by weight to about 90% by weight of polybutylene succinate (PBS) and from about 10% by weight to about 20% by weight of polylactic acid (PLA);
- mixing the PBS and PLA at a temperature of between about 210-230 degrees C. forming a liquid copolymer resin mixture;
- extruding the copolymer resin mixture through a die forming a filament;
- and
- drawing-down the filament at a temperature of about between 35-150 degrees C. one or more times to achieve a desired diameter and physical properties of strength and flexibility suitable for use as fishing line and/or fishing netting.
A method for producing biodegradable filament comprising:
- providing a polymer blend comprising from about 80% by weight to about 90% by weight of polybutylene succinate (PBS) and from about 10% by weight to about 20% by weight of polyglycolic acid (PGA);
- mixing the PBS and PGA at a temperature of between about 210-230 degrees C. forming a liquid copolymer resin mixture;
- extruding the copolymer resin mixture through a die forming a filament;
- and
- drawing-down the filament at a temperature of about between 35-150 degrees C. one or more times to achieve a desired diameter and physical properties of strength and flexibility suitable for use as fishing line and/or fishing netting.
A method for producing biodegradable filament comprising:
- providing a polymer blend comprising from about 80% by weight to about 90% by weight of polybutylene succinate (PBS) and from about 10% by weight to about 20% by weight of polycaprolatone (PCL);
- mixing the PBS and PCL at a temperature of between about 210-230 degrees C. forming a liquid copolymer resin mixture;
- extruding the copolymer resin mixture through a die forming a filament;
- and
- drawing-down the filament at a temperature of about between 35-150 degrees C. one or more times to achieve a desired diameter and physical properties of strength and flexibility suitable for use as fishing line and/or fishing netting.
A method for producing biodegradable filament comprising:
- providing a polymer blend comprising from about 80% by weight to about 90% by weight of polybutylene succinate (PBS) and from about 10% by weight to about 20% by weight of a combination of polylactic acid (PLA) and polycaprolatone (PCL);
- mixing the PBS, PLA and PCL at a temperature of between about 210-230 degrees C. forming a liquid copolymer resin mixture;
- extruding the copolymer resin mixture through a die forming a filament;
- drawing-down the filament at a temperature of about between 35-150 degrees C. one or more times to achieve a desired diameter and physical properties of strength and flexibility suitable for use as fishing line and/or fishing netting.
(canceled)
(canceled)
A biodegradable filament prepared from a polymer blend comprising from about 60% by weight to about 99.9% by weight of polybutylene succinate (PBS) and from about 0.1% by weight to about 40% by weight of a second polymer selected from a group consisting of at least one of polycaprolatone (PCL), polyglycolic acid (PGA), and polylactic acid (PLA).
Dependencies are inferred from the claim text.