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Title: Post polymerization cure shape memory polymers

Patent ·
OSTI ID:1163676
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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.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC. (Livermore, CA)
Patent Number(s):
8,883,871
Application Number:
13/099,146
OSTI ID:
1163676
Resource Relation:
Patent File Date: 2011 May 02
Country of Publication:
United States
Language:
English

References (11)

Method of Preparing a Diisocyanate-Based Laminating Resin patent May 1963
Rigid isocyanurate polyurethane foams and method for preparing same patent June 1981
Crosslinkable polymer composition, molded article therefrom, process for the preparation thereof, crosslinked nonwoven cloth, and process for the preparation thereof patent February 2000
Irradiation conversion of thermoplastic to thermoset polymers patent July 2003
Polyurethane elastomer article with “shape memory” and medical devices therefrom patent December 2003
Modification of thermoplastic polymers patent May 2009
Method of Preparing Shape Memory Materials Starting from Standard Thermoplastic Polymers patent-application January 2009
Shape Memory Tubular Stent with Grooves patent-application April 2010
Synthesis and characterization of photocrosslinked poly(ε-caprolactone)s showing shape-memory properties journal May 2009
Shape memory effect of ethylene-vinyl acetate copolymers journal February 1999
Shape memory polymers based on uniform aliphatic urethane networks journal January 2007

Cited By (1)

Post polymerization cure shape memory polymers patent November 2014

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36 MATERIALS SCIENCE