Method of preparing a bidirectional shape-memory actuator and method of its use

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United States of America Patent

PATENT NO 9919470
APP PUB NO 20160136876A1
SERIAL NO

14408606

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Abstract

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The present invention is directed to a method of preparing an actuator capable of being repeatedly and reversibly shifted between two freestanding shapes (A, B) under stress-free conditions upon varying a temperature between a temperature Tlow and a temperature Tsep. The method comprising the steps:

    (a) providing an actuator consisting of or comprising a covalently or physically cross-linked polymer network, the polymer comprising a first phase having a thermodynamic phase transition extending in a temperature range from Ttrans,onset to Ttrans,offset, and an elastic phase having a glass transition temperature Tg, with Tg

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Patent Owner(s)

Patent OwnerAddress
HELMHOLTZ-ZENTRUM GEESTHACHT ZENTRUM FUER MATERIAL- UND KUESTENFORSCHUNG GMBHMAX-PLANCK-STRASSE 1 GEESTHACHT 21502

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Behl, Marc Berlin, DE 6 17
Chaganti, Srinivasa Reddy Co. Kildare, IE 3 17
Kratz, Karl Berlin, DE 19 352
Lendlein, Andreas Berlin, DE 54 2915
Noechel, Ulrich Berlin, DE 2 5
Sauter, Tilman Berlin, DE 2 5

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