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US 11,530,291 B2Granted
Post polymerization cure shape memory polymers
AssigneeLawrence Livermore National Security, LLC
InventorsThomas S. Wilson, Michael Keith Hearon, Jane P. Bearinger
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Abstract
This invention relates to chemical polymer compositions, methods of synthesis, and fabrication methods for devices regarding polymers capable of displaying shape memory behavior (SMPs) and which can first be polymerized to a linear or branched polymeric structure, having thermoplastic properties, subsequently processed into a device through processes typical of polymer melts, solutions, and dispersions and then crossed linked to a shape memory thermoset polymer retaining the processed shape.
Claims18
A polymer composition comprising:
- a thiol crosslinker;
- and
- a polymer having carbon-carbon double-bond crosslinkable sites substantially regularly spaced along a polymer chain of the polymer;
- wherein the polymer, when crosslinked, forms a thermoset polymer having:
- (a) shape memory properties, and (b) a glass transition range between 25 and 80 degrees Celsius.
2 more elements
Dependencies are inferred from the claim text.