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Solvent depression of transition temperature to selectively stimulate actuation of shape memory polymer foams
(United States. Patent and Trademark Office, 2021-09-07)
An embodiment of the invention is a shape memory polymer (SMP) foam designed to recover its original shape through exposure to a solvent. Thermo-responsive SMPs are polymers designed to maintain a programmed secondary shape ...
Medical devices coated with shape memory polymer foams
(United States. Patent and Trademark Office, 2020-02-18)
An embodiment includes a system comprising: a substrate of a medical device; an un-foamed polyurethane coating directly contacting the substrate and fixedly attached to the substrate; a thermoset polyurethane shape memory ...