Resorbable polymer compositions
First Claim
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1. A method of making implants comprisingmelt-blending a mixture of a base material and a copolymer additive to form a melt-blended mixture, forming an implant from the melt-blended mixture, wherein the implant has a tensile strength at room temperature that is lower than a tensile strength at room temperature for an implant formed from the base material excluding the copolymer additive.
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Abstract
A novel polymer composition is provided which includes a base material including a biodegradable polymer or copolymer, and a copolymer additive including one or more monomers imparting a tensile strength to the polymer composition at room temperature that is lower than a tensile strength at room temperature for the base material.
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Citations
12 Claims
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1. A method of making implants comprising
melt-blending a mixture of a base material and a copolymer additive to form a melt-blended mixture, forming an implant from the melt-blended mixture, wherein the implant has a tensile strength at room temperature that is lower than a tensile strength at room temperature for an implant formed from the base material excluding the copolymer additive.
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2. An implant formed from a melt-blended polymer composition comprising:
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a base material including a biodegradable polymer or copolymer, and a copolymer additive including one or more monomers imparting a tensile strength for the implant at room temperature that is lower than a tensile strength at room temperature for an implant formed from the base material excluding the copolymer additive.
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3. A method of making implants comprising
melt-blending a mixture of a base material and a copolymer additive to form a melt-blended mixture, forming an implant from the melt-blended mixture, wherein the implant has a glass transition temperature at room temperature that is lower than a glass transition temperature for an implant formed from the base material excluding the copolymer additive.
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4. A method of recovering initial tensile strength of an implant comprising
melt-blending a mixture of a base material and a copolymer additive to form a melt-blended mixture, forming an implant from the melt-blended mixture, allowing the tensile strength of the implant to increase, and heating the implant in a manner to decrease the tensile strength of the implant for a time period greater than a few minutes.
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5. A medical implant comprising melt-blended polymer composition comprising:
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a base material including a biodegradable polymer or copolymer, and a copolymer additive including one or more monomers imparting a tensile strength for the melt-blended polymer composition at room temperature that is lower than a tensile strength at room temperature for the base material. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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Specification