Global Patent Index - EP 2191067 A1

EP 2191067 A1 20100602 - 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 CONTENANT DU POLYBENZAZOLE OU UN PRÉCURSEUR DE CE DERNIER

Publication

EP 2191067 A1 20100602 (EN)

Application

EP 08803525 A 20080902

Priority

  • EP 2008061554 W 20080902
  • EP 07017825 A 20070912
  • EP 08803525 A 20080902

Abstract (en)

[origin: EP2037039A1] 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)

See references of WO 2009033983A1

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA 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