http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9919470-B2
Outgoing Links
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|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6ddcf6974c1c7ae21334ec73f3f8be5a http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9b234254eb2858d1c3df00e1558fec7e |
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| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C61-006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C61-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C61-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C61-003 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29L7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K105-16 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C61-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C61-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C61-00 |
| filingDate | 2014-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc1ad27ab2802bbbbbaf5a8543e9503c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea0616fe834f51f7a09cc5a04ff42ec2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c16b1c1fc2547065ef272cb3ac3678e3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b194b734fa271a043153f4dd8127244 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_42c4acee22a2288bff83caa5bce887c7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e155519b3ad110989217a314ac685c84 |
| publicationDate | 2018-03-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-9919470-B2 |
| titleOfInvention | Method of preparing a bidirectional shape-memory actuator and method of its use |
| 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 T low and a temperature T sep . The method comprising the steps:n (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 T trans,onset to T trans,offset , and an elastic phase having a glass transition temperature T g , with T g <T trans,onset , the polymer having an initial shape; (b) deforming the polymer to a deformation shape at a temperature T prog by applying a stress, where the deformation is adapted to align chain segments of the polymer; (c) setting the polymer to a temperature T low with T low ≤T trans,onset under maintaining the stress as to provide a solidified state of the polymer domains associated with the first phase; (d) heating the polymer to a predetermined separation temperature T sep , with T trans,onset <T sep <T trans,offset , under stress-free conditions as to melt first polymeric domains (AD) of the first phase having a transition temperature in the range between T trans,onset and T sep and to maintain second domains (SD) of the first phase having a transition temperature in the range between T sep and T trans,offset in the solidified state, thus implementing shape A, where shape A geometrically lies between the initial shape provided in step (a) and the deformation shape applied in step (b) and shape B is the shape at T low and lies geometrically between shape A and the shape of deformation of step (b). |
| priorityDate | 2013-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 72.