EP 2870189 A1 20150513 - METHOD FOR PRODUCING A MULTILAYER DIELECTRIC POLYURETHANE FILM SYSTEM
Title (en)
METHOD FOR PRODUCING A MULTILAYER DIELECTRIC POLYURETHANE FILM SYSTEM
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES MEHRSCHICHTIGEN DIELEKTRISCHEN POLYURETHANFILMSYSTEMS
Title (fr)
PROCÉDÉ DE FABRICATION D'UN SYSTÈME DE FILMS DE POLYURÉTHANE DIÉLECTRIQUES MULTICOUCHES
Publication
Application
Priority
- EP 12174858 A 20120703
- EP 2013063852 W 20130701
- EP 13732567 A 20130701
Abstract (en)
[origin: WO2014006005A1] The present invention relates to a method for producing a multilayer dielectric polyurethane film system comprising the following method steps: I) producing a mixture comprising a) a compound containing isocyanate groups with an isocyanate group content of > 10% by weight and <= 50% by weight, b) a compound containing isocyanate reactive groups with an OH number of >= 20 and <= 150, wherein the sum of the number average functionality of isocyanate groups and of isocyanate reactive groups in compounds a) and b) is >= 2.6 and <= 6, II) applying the mixture immediately after it has been produced to a substrate in the form of a wet film, III) curing said wet film while forming the polyurethane film and IV) applying an electrode layer on the almost completely dried film, V) repeating steps I)-IV) to generate a multilayer system. The invention further relates to a multilayer dielectric polyurethane film system and an electromechanical transducer.
IPC 8 full level
C08G 18/78 (2006.01); B29C 41/28 (2006.01); C08G 18/24 (2006.01); C08G 18/42 (2006.01); C08G 18/44 (2006.01); H01L 41/193 (2006.01); H01L 41/45 (2013.01)
CPC (source: CN EP KR US)
B29B 7/325 (2013.01 - EP); B29B 7/7404 (2013.01 - EP US); B29B 7/7419 (2013.01 - EP US); B29B 7/86 (2013.01 - EP US); B29C 41/28 (2013.01 - CN EP US); B29C 67/246 (2013.01 - CN EP US); C08G 18/08 (2013.01 - KR); C08G 18/246 (2013.01 - CN EP US); C08G 18/4211 (2013.01 - CN EP US); C08G 18/44 (2013.01 - CN EP US); C08G 18/7831 (2013.01 - CN EP US); C08J 5/18 (2013.01 - KR); C09D 175/04 (2013.01 - US); H10N 30/05 (2023.02 - CN EP KR US); H10N 30/077 (2023.02 - EP US); H10N 30/098 (2023.02 - CN EP KR US); H10N 30/857 (2023.02 - CN KR US); B29B 7/7471 (2013.01 - EP US); B29K 2075/00 (2013.01 - CN EP US); H10N 30/077 (2023.02 - CN); Y10T 428/31551 (2015.04 - EP US)
Citation (search report)
See references of WO 2014006005A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014006005 A1 20140109; CN 104379625 A 20150225; EP 2870189 A1 20150513; JP 2015533671 A 20151126; KR 20150035799 A 20150407; TW 201418306 A 20140516; US 2015357554 A1 20151210
DOCDB simple family (application)
EP 2013063852 W 20130701; CN 201380035440 A 20130701; EP 13732567 A 20130701; JP 2015519176 A 20130701; KR 20147036899 A 20130701; TW 102123588 A 20130702; US 201314412283 A 20130701