WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO1999006203) METHOD FOR MAKING MULTILAYER OPTICAL FILMS HAVING THIN OPTICAL LAYERS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1999/006203    International Application No.:    PCT/US1998/013094
Publication Date: 11.02.1999 International Filing Date: 24.06.1998
Chapter 2 Demand Filed:    03.02.1999    
IPC:
B29C 47/06 (2006.01), B32B 27/36 (2006.01), G02B 1/10 (2006.01), G02B 5/28 (2006.01)
Applicants: MINNESOTA MINING AND MANUFACTURING COMPANY [US/US]; 3M Center P.O. Box 33427 Saint Paul, MN 55133-3427 (US)
Inventors: WEBER, Michael, F.; (US).
STOVER, Carl, A.; (US).
MERRILL, William, W.; (US).
OUDERKIRK, Andrew, J.; (US)
Agent: FORTKORT, John, A.; Minnesota Mining and Manufacturing Company Office of Intellectual Property Counsel P.O. Box 33427 Saint Paul, MN 55133-3427 (US).
VOSSIUS & PARTNER; Patentanwälte P.O. Box 86 07 67 D-81634 München (DE)
Priority Data:
08/904,325 31.07.1997 US
Title (EN) METHOD FOR MAKING MULTILAYER OPTICAL FILMS HAVING THIN OPTICAL LAYERS
(FR) PROCEDE DE FABRICATION DE FILMS OPTIQUES A COUCHES MULTIPLES PRESENTANT DES COUCHES OPTIQUES MINCES
Abstract: front page image
(EN)A method for making multilayer optical films is provided in which the degradation of the optical extinction of the thinnest optical layers is avoided by casting these layers close to the casting wheel.
(FR)Procédé de fabrication de films optiques à couches multiples, qui permet d'éviter la dégradation de l'extinction optique des couches optiques les plus minces par coulage de ces couches à proximité de la roue de coulage.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, UZ, VN, YU, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)