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1. (WO2010072344) SUBSTRATE MATERIAL FOR HIGH SPEED OPTICAL DISCS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/072344 International Application No.: PCT/EP2009/008903
Publication Date: 01.07.2010 International Filing Date: 12.12.2009
IPC:
G11B 7/253 (2006.01) ,C08G 64/00 (2006.01) ,C08K 5/1545 (2006.01)
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7
Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor
24
Record carriers characterised by shape, structure or physical properties, or by the selection of the material 
241
Record carriers characterised by the selection of the material
252
of layers other than recording layers
253
of substrates
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
64
Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
K
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
5
Use of organic ingredients
04
Oxygen-containing compounds
15
Heterocyclic compounds having oxygen in the ring
151
having one oxygen atom in the ring
1545
Six-membered rings
Applicants:
BAYER MATERIALSCIENCE AG [DE/DE]; 51368 Leverkusen, DE (AllExceptUS)
BAYER MATERIALSCIENCE (CHINA) COMPANY LTD. [CN/CN]; 82 Muhua Road Shanghai Chemical Industry Park Caojing Shanghai 201507, CN (CN)
BRUDER, Friedrich-Karl [DE/DE]; DE (UsOnly)
HAESE, Wilfried [DE/DE]; DE (UsOnly)
OSER Rafael [DE/DE]; DE (UsOnly)
BLASCHKE, Ulrich [DE/DE]; DE (UsOnly)
WONG, Raymond [CN/CN]; HK (UsOnly)
ZHANG, Ice [CN/CN]; CN (UsOnly)
WEHRLE, Jörg [DE/DE]; DE (UsOnly)
ROPPEL, Michael [DE/DE]; DE (UsOnly)
Inventors:
BRUDER, Friedrich-Karl; DE
HAESE, Wilfried; DE
OSER Rafael; DE
BLASCHKE, Ulrich; DE
WONG, Raymond; HK
ZHANG, Ice; CN
WEHRLE, Jörg; DE
ROPPEL, Michael; DE
Agent:
BAYER MATERIALSCIENCE AG; Law and Patents Patents and Licensing 51368 Leverkusen, DE
Priority Data:
PCT/CN2008/00208325.12.2008CN
Title (EN) SUBSTRATE MATERIAL FOR HIGH SPEED OPTICAL DISCS
(FR) MATÉRIAU DE SUBSTRAT POUR DISQUES OPTIQUES RAPIDES
Abstract:
(EN) This invention relates to the use of polycarbonate for the production of an optical recording medium in which secure high speed operation, a transcriptability of the pit/groove structure of > 85% and sufficient disc flatness can be achieved.
(FR) La présente invention concerne l'utilisation de polycarbonate pour produire un support d'enregistrement optique permettant d'obtenir un fonctionnement rapide et sécurisé, une aptitude à la réinscription d'une structure de microcuvettes/sillons à plus de 85% et une planéité suffisante du disque.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, 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, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, 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:
EP2382629JP2012514280US20120065354CN102265342ES2437611KR1020110099263
IN4853/DELNP/2011