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1. (WO2006086390) PHOTOCHROMIC ARTICLES AND THEIR METHOD OF MAKING
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/086390    International Application No.:    PCT/US2006/004294
Publication Date: 17.08.2006 International Filing Date: 07.02.2006
IPC:
G02B 5/23 (2006.01), G02C 7/10 (2006.01)
Applicants: SOFTLIGHT, INC. [US/US]; 900 Wilshire Drive, Suite 202, Troy, MI 48084 (US) (For All Designated States Except US).
WIANG, Ronald, C. [US/US]; (US) (For US Only)
Inventors: WIANG, Ronald, C.; (US)
Agent: HOFER, Ronald, L.; 122 Lindbergh Lane, Mooresville, NC 28117 (US)
Priority Data:
60/651,139 08.02.2005 US
Title (EN) PHOTOCHROMIC ARTICLES AND THEIR METHOD OF MAKING
(FR) ARTICLES PHOTOCHROMIQUES ET PROCEDE D'ELABORATION
Abstract: front page image
(EN)A photochromic article such as an ophthalmic lens has a substrate of a cross-linked organic polymeric matrix with a surface layer. The polymer in the surface layer is more porous than the polymer in the remainder of the substrate and the polymeric matrix in the surface layer contains a photochromic moiety. A method of making a photochromic article includes the steps of curing a cross-linkable pre-polymer to beyond a gel state to form a substrate of a partially cured polymeric matrix, inhibiting further curing of a surface layer of the substrate of partially cured polymeric matrix, and then incorporating an effective amount of a photochromic moiety into the surface layer either before or after substantially completely curing the remainder of the polymeric substrate.
(FR)Article photochromique du type lentille ophtalmique à substrat de matrice polymère organique réticulée à couche de surface. Le polymère dans la couche de surface est plus poreux que le polymère dans le reste du substrat et la matrice polymère de la couche de surface contient une fraction photochromique. Procédé d'élaboration d'article photochromique : durcissement de prépolymère réticulable au-delà d'un état de gel pour former un substrat de matrice polymère partiellement durcie, inhibition de durcissement plus poussé d'une couche de surface du substrat de la matrice polymère partiellement durcie, puis incorporation d'une quantité efficace de fraction photochromique dans la couche de surface avant ou après le durcissement sensiblement complet du reste du substrat polymère.
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, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, 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, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (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)