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1. (WO2007011911) POLY(ARYLETHERIMIDES) FOR NEGATIVE BIREFRINGENT FILMS FOR LCDS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/011911 International Application No.: PCT/US2006/027782
Publication Date: 25.01.2007 International Filing Date: 18.07.2006
IPC:
C09K 19/00 (2006.01) ,G02B 1/08 (2006.01)
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
K
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
19
Liquid crystal materials
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1
Optical elements characterised by the material of which they are made; Optical coatings for optical elements
08
made of polarising materials
Applicants:
AKRON POLYMER SYSTEMS [US/US]; 2990 Gilchrist Road Suite 2100 Akron, Ohio 44305, US (AllExceptUS)
HARRIS, Frank [US/US]; US (UsOnly)
SUN, Limin [CN/US]; US (UsOnly)
ZHANG, Dong [CN/US]; US (UsOnly)
CHENG, Stephen Z. D. [US/US]; US (UsOnly)
Inventors:
HARRIS, Frank; US
SUN, Limin; US
ZHANG, Dong; US
CHENG, Stephen Z. D.; US
Agent:
MOXON, II, George W.; ROETZEL & ANDRESS 222 South Main Street Akron, Ohio 44308, US
Priority Data:
60/700,16918.07.2005US
Title (EN) POLY(ARYLETHERIMIDES) FOR NEGATIVE BIREFRINGENT FILMS FOR LCDS
(FR) POLY(ARYLETHERIMIDES) DESTINES A DES FILMS BIREFRINGENTS NEGATIFS POUR LCD
Abstract:
(EN) 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.
(FR) L'invention concerne une classe de poly(arylétherimides) solubles (PAEI) possédant des squelettes souples et utiles dans la fabrication de films optiques polymères. Les poly(arylétherimides) sont dissous dans des solvants organiques, tels que des cétones et des mélanges de solvants de cétones et revêtus sur une palette de substrats, tels que la triacétyl-cellulose (TAC), de manière à former des films à couche mince clairs affichant une biréfringence négative. Les films minces peuvent servir de couches de compensation dans des affichages à cristaux liquides (LCD) et peuvent être combinés avec d'autres types de films optiques, tels que des polariseurs, des films d'amélioration de la brillance ou d'autres films de compensation, aux fins de formation de films multicouches spécialement utiles dans la fabrication de LCD.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
KR1020080030671EP1904603JP2009506349CN101258223