EP 2037039 A1 20090318 - Paper comprising polybenzazole or precursor thereof
Title (en)
Paper comprising polybenzazole or precursor thereof
Title (de)
Papier mit Polybenzazol oder einem Vorläufer davon
Title (fr)
Papier comportant du polybenzazole ou leur précurseur
Publication
Application
Priority
EP 07017825 A 20070912
Abstract (en)
The invention relates to a paper comprising at least one of a fiber, pulp, fibril, floc, and fibrid containing a polybenzazole structure with a repeating unit of formula (I) and/or (II), or (III): wherein Ar 1 and Ar 2 are independently an aromatic group having 4 to 12 carbon atoms, Ar1 and Ar2 have the para or meta configuration, and X and Y are the same or different and selected from O, S, and NH; n is 0 or 1. The paper can be made free of non-extractable phosphorus compound. The paper is particularly suitable for making an electrical insulation material, a honeycomb structure, or a constructive material.
IPC 8 full level
D21H 13/20 (2006.01); D21H 13/26 (2006.01)
CPC (source: EP US)
D21H 13/20 (2013.01 - EP US); D21H 13/26 (2013.01 - EP US)
Citation (search report)
- [Y] JP H1096175 A 19980414 - TOYO BOSEKI
- [Y] JP 2001248091 A 20010914 - TOYO BOSEKI
- [Y] WO 2007076332 A2 20070705 - DU PONT [US], et al
- [A] WO 2007075575 A2 20070705 - DU PONT [US], et al
- [AD] US 6890636 B2 20050510 - DANVER DALE [US]
- [A] WO 2007074368 A2 20070705 - TEIJIN TWARON BV [NL], et al
- [A] JP 2007063399 A 20070315 - TEIJIN TECHNO PRODUCTS LTD
- [A] US 2007144696 A1 20070628 - AMMA ACHIM [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
EP 2037039 A1 20090318; CN 101802302 A 20100811; EP 2191067 A1 20100602; EP 2191067 B1 20120620; JP 2010539341 A 20101216; US 2011083820 A1 20110414; WO 2009033983 A1 20090319
DOCDB simple family (application)
EP 07017825 A 20070912; CN 200880106946 A 20080902; EP 08803525 A 20080902; EP 2008061554 W 20080902; JP 2010524454 A 20080902; US 67481908 A 20080902