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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.:

US 11014341 B1

PDFFull Text
Date of Patent:
May. 25, 2021

Filed:

Apr. 22, 2013

Composite shape memory materials

Applicant:

Case Western Reserve University, Cleveland, OH (US);

Inventors:

Eric Baer, Cleveland Heights, OH (US);

Shannon Armstrong, Cleveland Heights, OH (US);

Deepak Langhe, Cleveland, OH (US);

Assignee:

CASE WESTERN RESERVE UNIVERSITY, Cleveland, OH (US);

Attorney:

Tarolli, Sundheim, Covell & Tummino LLP

Primary Examiner:

David Sample

Assistant Examiner:

Donald M Flores, Jr

Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 7/02 (2019.01); B29C 48/21 (2019.01); B29C 61/06 (2006.01); B32B 27/40 (2006.01); B29C 48/00 (2019.01); B29K 75/00 (2006.01); B32B 37/15 (2006.01); B29C 48/07 (2019.01); B29C 48/18 (2019.01); B29C 48/71 (2019.01); B29C 48/375 (2019.01); B29C 48/495 (2019.01); B29K 67/00 (2006.01); B29L 7/00 (2006.01);
U.S. Cl.
CPC ...
B32B 27/08 (2013.01); B29C 48/21 (2019.02); B29C 61/0616 (2013.01); B32B 7/02 (2013.01); B32B 27/40 (2013.01); B29C 48/022 (2019.02); B29C 48/023 (2019.02); B29C 48/07 (2019.02); B29C 48/185 (2019.02); B29C 48/387 (2019.02); B29C 48/495 (2019.02); B29C 48/71 (2019.02); B29K 2067/04 (2013.01); B29K 2075/00 (2013.01); B29K 2995/0012 (2013.01); B29L 2007/008 (2013.01); B32B 37/153 (2013.01); B32B 2250/42 (2013.01); B32B 2307/734 (2013.01); B32B 2307/738 (2013.01); B32B 2367/00 (2013.01); B32B 2375/00 (2013.01); Y10T 428/24942 (2015.01); Y10T 428/24975 (2015.01); Y10T 428/24983 (2015.01);
Abstract

A multilayered composite shape memory material includes a coextruded first polymer layer of a first polymer material and a second polymer layer of a second polymer material. The composite shape memory material after thermomechanical programming being capable of undergoing at least one temperature induced shape transition from a temporary shape to a permanent shape. The first polymer layer defines a hard segment of the shape memory material that provides the shape memory material with the permanent shape, and the second polymer layer defines a switching segment of the shape memory material that provides the shape memory material with the temporary shape.

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