EP 2822991 A1 20150114 - PERFORATED POLYMER FILMS HAVING IMPROVED TOLERANCE TO TENSILE STRESS
Title (en)
PERFORATED POLYMER FILMS HAVING IMPROVED TOLERANCE TO TENSILE STRESS
Title (de)
PERFORIERTE POLYMERFOLIEN MIT VERBESSERTER TOLERANZ GEGEN ZUGSPANNUNG
Title (fr)
FEUILLES POLYMÈRES PERFORÉES PRÉSENTANT UNE TOLÉRANCE AMÉLIORÉE À LA CONTRAINTE DE TRACTION
Publication
Application
Priority
- DE 102012203755 A 20120309
- EP 2013052660 W 20130211
Abstract (en)
[origin: WO2013131716A1] The invention relates to a perforated polymer film having a porosity (P) of 30% to 50% and an arrangement of holes that is characterized by the hole shape, the ratio of the semiaxes of the holes, the orientation of the holes, and the regular arrangement of the holes. The polymer film withstands a greater tensile stress in the longitudinal direction without tearing than with the same porosity and every other arrangement of holes differing in at least one characteristic.
IPC 8 full level
C08J 5/18 (2006.01); C08J 7/048 (2020.01); C08J 7/06 (2006.01); H01M 50/414 (2021.01); H01M 50/417 (2021.01); H01M 50/42 (2021.01); H01M 50/423 (2021.01); H01M 50/426 (2021.01); H01M 50/429 (2021.01); H01M 50/437 (2021.01); H01M 50/449 (2021.01); H01M 50/451 (2021.01); H01M 50/489 (2021.01); H01M 50/494 (2021.01); H01M 50/491 (2021.01)
CPC (source: EP KR US)
C08J 5/18 (2013.01 - EP KR US); C08J 5/22 (2013.01 - KR); C08J 7/048 (2020.01 - EP US); C08J 7/06 (2013.01 - EP KR US); C08J 9/00 (2013.01 - KR); H01M 50/411 (2021.01 - KR); H01M 50/414 (2021.01 - EP US); H01M 50/417 (2021.01 - EP US); H01M 50/42 (2021.01 - EP US); H01M 50/423 (2021.01 - EP US); H01M 50/426 (2021.01 - EP US); H01M 50/429 (2021.01 - EP US); H01M 50/431 (2021.01 - KR); H01M 50/437 (2021.01 - EP US); H01M 50/449 (2021.01 - EP KR US); H01M 50/451 (2021.01 - EP US); H01M 50/489 (2021.01 - EP US); H01M 50/494 (2021.01 - EP US); H01M 50/491 (2021.01 - EP US); Y02E 60/10 (2013.01 - EP KR)
Citation (search report)
See references of WO 2013131716A1
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)
DE 102012203755 A1 20130912; CN 104321371 A 20150128; EP 2822991 A1 20150114; JP 2015510951 A 20150413; KR 20140138150 A 20141203; US 2015037654 A1 20150205; WO 2013131716 A1 20130912
DOCDB simple family (application)
DE 102012203755 A 20120309; CN 201380012777 A 20130211; EP 13705422 A 20130211; EP 2013052660 W 20130211; JP 2014560292 A 20130211; KR 20147024715 A 20130211; US 201314384041 A 20130211