Global Patent Index - EP 1161482 A1

EP 1161482 A1 2001-12-12 - COMPOSITE CAPABLE OF RAPID VOLUME CHANGE

Title (en)

COMPOSITE CAPABLE OF RAPID VOLUME CHANGE

Title (de)

VERBUNDWERKSTOFF MIT DER FÄHIGKEIT ZUR SCHNELLEN VOLUMENÄNDERUNGEN

Title (fr)

COMPOSITE CAPABLE DE CHANGER RAPIDEMENT DE VOLUME

Publication

EP 1161482 A1 (EN)

Application

EP 00901491 A

Priority

  • EP 00901491 A
  • DK 0000043 W
  • EP 99200250 A

Abstract (en)

[origin: EP1026192A1] The present invention relates to a novel composite capable of rapid volume change, the use of said composite as well as an actuator comprising the composite. Thus, the invention relates to a composite comprising one conjugated polymer capable of changing redox-potential upon the onset of an electrical or chemical stimulus, and an ion-sensitive gel capable of changing volume, the polymer and the gel being morphologically interrelated, and wherein the volume change of the gel is in response to the change of the redox-potential of the conjugated polymer, and 50 % of the total volume change of the composite is achieved within a period of at most 5 minutes from the onset of the stimulus to the conjugated polymer. The composite is capable of rapid volume change, may for example be used in an actuator in which the composite is controllable by electrical and/or chemical stimuli, and the strength of the composite is important. Further the invention relates to the use of a composite for the production of an actuator and an actuator comprising a composite as well as a process of causing a volume change in a composite comprising a conjugated polymer capable of changing redox-potential and an ion-sensitive gel capable of changing volume.

IPC 1-7 (main, further and additional classification)

C08J 3/24; C08L 101/14; F03G 7/06

IPC 8 full level (invention and additional information)

C08J 3/24 (2006.01); C08L 101/14 (2006.01); F03G 7/00 (2006.01); F03G 7/06 (2006.01)

CPC (invention and additional information)

F03G 7/005 (2013.01); C08L 101/14 (2013.01)

Combination set (CPC)

C08L 101/14 + C08L 2666/04

Citation (search report)

See references of WO 0046278A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1026192 A1 20000809; AU 2279100 A 20000825; EP 1161482 A1 20011212; WO 0046278 A1 20000810

INPADOC legal status


2006-03-29 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20050909

2003-09-10 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030725

2001-12-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010724

2001-12-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-12-12 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL PAYMENT 20010724;LT PAYMENT 20010724;LV PAYMENT 20010724;MK PAYMENT 20010724;RO PAYMENT 20010724;SI PAYMENT 20010724