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1. (WO2017039669) MULTILAYER PHOTOCHROMIC ARTICLES
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/039669 International Application No.: PCT/US2015/048255
Publication Date: 09.03.2017 International Filing Date: 03.09.2015
IPC:
G03C 1/73 (2006.01)
[IPC code unknown for G03C 1/73]
Applicants:
TRANSITIONS OPTICAL, INC. [US/US]; 9251 Belcher Road Pinellas Park, Florida 33782, US
Inventors:
TOMASULO, Massimiliano; US
BROWN, Cory; US
ZEZINKA, Elizabeth, Ann; US
Agent:
FORTNEY, Lester, N.; US
Priority Data:
Title (EN) MULTILAYER PHOTOCHROMIC ARTICLES
(FR) ARTICLES PHOTOCHROMIQUES MULTICOUCHES
Abstract:
(EN) A multilayer photochromic article can include a photochromic substrate, which may include a first photochromic layer defining a surface of the substrate, and a second photochromic layer positioned between the surface of the photochromic substrate and a source of actinic radiation, and in which the photochromic substrate and the second photochromic layer are selected such that the fade half-life of the photochromic substrate or the half-life of the first photochromic layer defining the surface of the substrate are greater than the fade half-life of the second photochromic layer.
(FR) La présente invention concerne un article photochromique multicouche qui peut comprendre un substrat photochromique, qui peut comprendre une première couche photochromique définissant une surface du substrat et une seconde couche photochromique placée entre la surface du substrat photochromique et une source de rayonnement actinique et dans lequel le substrat photochromique et la seconde couche photochromique sont sélectionnés de telle sorte que la demi-vie d'atténuation du substrat photochromique ou la demi-vie de la première couche photochromique définissant la surface du substrat sont supérieures à la demi-vie d'atténuation de la seconde couche photochromique.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, 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, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)