EP 1904603 A2 20080402 - POLY(ARYLETHERIMIDES) FOR NEGATIVE BIREFRINGENT FILMS FOR LCDS
Title (en)
POLY(ARYLETHERIMIDES) FOR NEGATIVE BIREFRINGENT FILMS FOR LCDS
Title (de)
POLY(ARYLETHERIMIDE) FÜR NEGATIV DOPPELBRECHENDE FILME FÜR LCDS
Title (fr)
POLY(ARYLETHERIMIDES) DESTINES A DES FILMS BIREFRINGENTS NEGATIFS POUR LCD
Publication
Application
Priority
- US 2006027782 W 20060718
- US 70016905 P 20050718
Abstract (en)
[origin: WO2007011911A2] A class of soluble poly(aryletherimides) (PAEIs) having flexible backbones, useful in the manufacture of polymeric optical films are disclosed. The poly(aryletherimides) are dissolved in organic solvents, such as ketones and ketone solvent mixtures and coated on variety of substrates such as triacetyl cellulose (TAC), to form clear thin-layer films which display negative birefringence. The thin films can serve as compensation layers in liquid crystal displays (LCDs), and can be combined with other types of optical films, such as polarizers, brightness enhancement films, or other compensation films, to from multi-layered films that are especially useful in the manufacture of LCDs.
IPC 8 full level
C09K 19/00 (2006.01); G02B 1/08 (2006.01)
CPC (source: EP KR US)
C08G 73/10 (2013.01 - KR); C08G 73/1039 (2013.01 - EP); C08G 73/1042 (2013.01 - EP US); C08J 5/18 (2013.01 - EP KR); C08J 7/0427 (2020.01 - EP); C08L 79/08 (2013.01 - EP); C09K 19/00 (2013.01 - KR); G02B 1/08 (2013.01 - KR); C08J 2379/08 (2013.01 - EP); C08J 2479/00 (2013.01 - EP); G02F 1/133634 (2013.01 - EP)
Citation (search report)
See references of WO 2007011911A2
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 NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007011911 A2 20070125; WO 2007011911 A3 20070809; CN 101258223 A 20080903; EP 1904603 A2 20080402; JP 2009506349 A 20090212; KR 20080030671 A 20080404
DOCDB simple family (application)
US 2006027782 W 20060718; CN 200680031234 A 20060718; EP 06800097 A 20060718; JP 2008522884 A 20060718; KR 20087003882 A 20080218