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1. WO2000046278 - COMPOSITE CAPABLE OF RAPID VOLUME CHANGE

Publication Number WO/2000/046278
Publication Date 10.08.2000
International Application No. PCT/DK2000/000043
International Filing Date 01.02.2000
Chapter 2 Demand Filed 24.08.2000
IPC
C08L 101/14 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
101Compositions of unspecified macromolecular compounds
12characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
14the macromolecular compounds being water soluble or water swellable, e.g. aqueous gels
F03G 7/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
GSPRING, WEIGHT, INERTIA, OR LIKE MOTORS; MECHANICAL-POWER-PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
7Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
CPC
C08L 101/14
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
101Compositions of unspecified macromolecular compounds
12characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
14the macromolecular compounds being water soluble or water swellable, e.g. aqueous gels
F03G 7/005
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
GSPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
7Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
005Electro-chemical actuators; Actuators having a material for absorbing or desorbing gas, e.g. a metalhydride; Actuators using the difference in osmotic pressure between fluids; Actuators with elements stretchable when contacted with liquid rich in ions, with UV light, with a salt solution
Applicants
  • FORSKNINGSCENTER RISØ [DK]/[DK] (AllExceptUS)
  • JOHANNSEN, Ib [DK]/[DK] (UsOnly)
  • SOMMER-LARSEN, Peter [DK]/[DK] (UsOnly)
  • WEST, Keld [DK]/[DK] (UsOnly)
  • HOOKER, Jacob [DK]/[DK] (UsOnly)
  • SMELA, Elisabeth [US]/[US] (UsOnly)
Inventors
  • JOHANNSEN, Ib
  • SOMMER-LARSEN, Peter
  • WEST, Keld
  • HOOKER, Jacob
  • SMELA, Elisabeth
Agents
  • HØIBERG APS
Priority Data
99200250.101.02.1999EP
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) COMPOSITE CAPABLE OF RAPID VOLUME CHANGE
(FR) COMPOSITE CAPABLE DE CHANGER RAPIDEMENT DE VOLUME
Abstract
(EN) The present invention relates to a 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 oxidation-state 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 oxidation-state 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.
(FR) La présente invention porte sur un composite capable de changer rapidement de volume, sur l'utilisation de ce composite ainsi que sur un actionneur comprenant ce composite. Le composite de cette invention comprend un polymère conjugué capable de modifier l'état d'oxydation lors de l'apparition d'un stimulus électrique ou chimique, et un gel sensible aux ions capable de changer de volume, le polymère et le gel ayant une relation morphologique. Le changement de volume du gel s'effectue en réaction à la modification de l'état d'oxydation du polymère conjugué, et 50 % du changement de volume total du composite s'effectue dans une période n'excédant pas 5 minutes à partir de l'apparition du stimulus du polymère conjugué.
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