EP 3143061 A1 20170322 - DIELECTRIC EAP FILMS WITH LOW GLASS TRANSITION TEMPERATURE BASED ON POLYESTER POLYOLS
Title (en)
DIELECTRIC EAP FILMS WITH LOW GLASS TRANSITION TEMPERATURE BASED ON POLYESTER POLYOLS
Title (de)
DIELEKTRISCHE EAP FOLIEN MIT NIEDRIGEM GLASPUNKT AUF DER BASIS VON POLYESTERPOLYOLEN
Title (fr)
FILMS DIÉLECTRIQUES EAP À BAS POINT DE TRANSITION VITREUSE ET À BASE DE POLYESTER-POLYOLS
Publication
Application
Priority
- EP 14167885 A 20140512
- EP 2015060141 W 20150508
Abstract (en)
[origin: WO2015173126A1] The present invention relates to a method for producing a dielectric polyurethane film from a mixture comprising A) a compound containing isocyanate groups having a content of isocyanate groups of ≥ 10 and ≤ 50 wt.% and a number-average functionality of isocyanate groups of ≥ 2.6 and ≤ 4 and B) a polyester polyol having an OH-number of ≥ 27 and ≤ 120 mg KOH/g, determined in accordance with DIN 53240, characterized in that it exhibits an ester group content of ≥ 1 and ≤ 7 mol/kg and a portion of aromatic structures of ≤ 50 wt.-% The invention also relates to the dielectric polyurethane film obtainable by this method. The invention further relates to a method for preparing an electrochemical transducer and an electrochemical transducer obtainable by said method.
IPC 8 full level
C08G 18/42 (2006.01); C08G 18/78 (2006.01); C08G 63/553 (2006.01); C08J 5/18 (2006.01)
CPC (source: EP)
C08G 18/4233 (2013.01); C08G 18/7831 (2013.01); C08G 63/553 (2013.01); C08J 5/18 (2013.01); C08J 2375/06 (2013.01)
Citation (search report)
See references of WO 2015173126A1
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)
DOCDB simple family (application)
EP 2015060141 W 20150508; EP 15719757 A 20150508