Biodegradable polymers of lactones
First Claim
1. An elastomeric, biodegradable polymer formed by the opening polymerization of at least one monocyclic lactone and at least one polycyclic dilactone containing two lactone groups, each of which may be polymerized by ring opening to form a two-dimensional polymer.
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Accused Products
Abstract
Homopolymers and copolymers of lactones are prepared by ring-opening polymerization of a mixture of lactones which includes a monolactone, such as ε-caprolactone, and a dilactone, such as bis-2,2-(ε-caprolacton-4-yl)propane, which is capable of forming crosslinks. The resulting polymers range from tough and partially crystalline to amorphous, elastomeric materials, depending on the monomer composition and proportions. Additionally, these polymers may be designed to achieve different degrees of permeability and rates of biodegradation. As such, they are useful for the controlled delivery of medicinal agents and as surgical aids and temporary artificial biomaterials such as skin substitutes and burn dressings.
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Citations
13 Claims
- 1. An elastomeric, biodegradable polymer formed by the opening polymerization of at least one monocyclic lactone and at least one polycyclic dilactone containing two lactone groups, each of which may be polymerized by ring opening to form a two-dimensional polymer.
Specification