Hydrophobic and hydrophilic interpenetrating polymer networks derived from hydrophobic polymers and methods of preparing the same
First Claim
1. A composition of matter adapted to comprise one or more surfaces including an exterior surface of a medical implant comprising:
- a first IPN or semi-IPN comprising a non-ionic polymer P and a hydrophobic thermoset or thermoplastic polymer T, and a second IPN or semi-IPN comprising the same said hydrophobic thermoset or thermoplastic polymer T and a hydrophilic interpenetrating polymer S.
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Accused Products
Abstract
A composition of matter comprising a hydrophobic or hydrophilic (or both) interpenetrating polymer network containing a non-ionic/ionic polymer and a hydrophobic thermoset or thermoplastic polymer, articles made from such composition and methods of preparing such articles. The invention also includes a process for preparing a hydrophobic/hydrophilic IPN or semi-IPN from a hydrophobic thermoset or thermoplastic polymer including the steps of placing an non-ionizable/ionizable monomer solution in contact with a hydrophobic thermoset or thermoplastic polymer; diffusing the monomer solution into the hydrophobic thermoset or thermoplastic polymer; and polymerizing the monomers to form a penetrating polymer inside the hydrophobic thermoset or thermoplastic polymer, thereby forming the IPN or semi-IPN.
322 Citations
40 Claims
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1. A composition of matter adapted to comprise one or more surfaces including an exterior surface of a medical implant comprising:
a first IPN or semi-IPN comprising a non-ionic polymer P and a hydrophobic thermoset or thermoplastic polymer T, and a second IPN or semi-IPN comprising the same said hydrophobic thermoset or thermoplastic polymer T and a hydrophilic interpenetrating polymer S. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 34, 35, 36, 37, 38)
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19. A composition of matter adapted to comprise one or more surfaces including an exterior surface of a medical implant comprising:
at least two IPNs or semi-IPNs, wherein a first IPN or semi-IPN comprises a hydrophobic thermoset or thermoplastic polymer and a non-ionic polymer and a second IPN or semi-IPN comprises a hydrophobic thermoset or thermoplastic polymer and a hydrophilic interpenetrating polymer.
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20. A medical implant comprising a single body comprising a bone interfacing surface, a joint interfacing surface, a first IPN or semi-IPN comprising a non-ionic polymer P and a hydrophobic thermoset or thermoplastic polymer T being adjacent to the bone interfacing surface, and a second IPN or semi-IPN comprising the same said hydrophobic thermoset or thermoplastic polymer T, and a hydrophilic interpenetrating polymer S adjacent to the joint interfacing surface;
wherein the first IPN or semi-IPN and the second IPN or semi-IPN are between the bone interfacing surface and the joint interfacing surface. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 39)
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33. A medical implant comprising a single body comprising a bone interfacing surface, a joint interfacing surface, and at least two IPNs or semi-IPNs, wherein a first IPN or semi-IPN comprises a non-ionic polymer disposed in at least one section of a hydrophobic thermoset or thermoplastic polymer, and a second IPN or semi-IPN comprises a non-ionic polymer disposed in at least one section of the said hydrophobic thermoset or thermoplastic polymer;
wherein the first IPN or semi-IPN and the second IPN or semi-IPN are between the bone interfacing surface and the joint interfacing surface, wherein the at least one sections are between the bone interfacing surface and the joint interfacing surface. - View Dependent Claims (40)
Specification