The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 20, 2018
Filed:
Jun. 17, 2014
Applicant:
Helmholtz-zentrum Geesthacht Zentrum Für Material- Und Küstenforschung, Geesthacht, DE;
Inventors:
Marc Behl, Berlin, DE;
Karl Kratz, Berlin, DE;
Srinivasa Reddy Chaganti, Co. Kildare, IE;
Ulrich Noechel, Berlin, DE;
Tilman Sauter, Berlin, DE;
Andreas Lendlein, Berlin, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 18/48 (2006.01); B29C 61/04 (2006.01); B29C 61/00 (2006.01); B29C 61/06 (2006.01); B29K 105/16 (2006.01); B29L 7/00 (2006.01);
U.S. Cl.
CPC ...
B29C 61/04 (2013.01); B29C 61/003 (2013.01); B29C 61/006 (2013.01); B29C 61/06 (2013.01); B29K 2105/16 (2013.01); B29K 2995/0005 (2013.01); B29K 2995/0008 (2013.01); B29K 2995/0018 (2013.01); B29L 2007/008 (2013.01);
Abstract
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 Tand a temperature T. The method comprising the steps: