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1. (WO2000061857) METHOD FOR COLOURING A TRANSPARENT ARTICLE MADE OF POLYCARBONATE AND RESULTING ARTICLE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2000/061857    International Application No.:    PCT/FR2000/000792
Publication Date: 19.10.2000 International Filing Date: 30.03.2000
Chapter 2 Demand Filed:    03.11.2000    
IPC:
B29C 35/08 (2006.01), B29C 59/16 (2006.01), B29C 67/00 (2006.01), D06P 1/00 (2006.01), D06P 3/52 (2006.01), D06P 5/20 (2006.01)
Applicants: ESSILOR INTERNATIONAL COMPAGNIE GENERALE D'OPTIQUE [FR/FR]; 147, rue de Paris, F-94227 Charenton Cedex (FR) (AE, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BY, CA, CF, CG, CH, CI, CM, CN, CU, CY, CZ, DE, DK, EE, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MC, MD, MG, MK, ML, MN, MR, MW, MX, NE, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, SN, SZ, TD, TG, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW only).
BAILLET, Gilles [FR/FR]; (FR) (For US Only)
Inventors: BAILLET, Gilles; (FR)
Agent: CATHERINE, Alain; Cabinet Harlé & Phélip, 7, rue de Madrid, F-75008 Paris (FR)
Priority Data:
99/04409 08.04.1999 FR
Title (EN) METHOD FOR COLOURING A TRANSPARENT ARTICLE MADE OF POLYCARBONATE AND RESULTING ARTICLE
(FR) PROCEDE DE COLORATION D'UN ARITCLE TRANSPARENT EN POLYCARBONATE ET ARTICLE OBTENU
Abstract: front page image
(EN)The invention concerns a method which consists in irradiating at least one face of the article with UV radiation, causing the article to be photodegraded over a thickness of at least 1 $g(m)m, and in contacting the irradiated face of the article with a colouring agent so as to diffuse the colouring agent in the entire thickness of the photodegraded surface layer of the article. The invention is useful for optical and ophthalmologic articles.
(FR)Le procédé consiste à irradier au moins une face de l'article avec un rayonnement UV, provoquant une photodégradation de l'article sur une épaisseur d'au moins 1 $g(m)m, et à mettre en contact la face irradiée de l'article avec un agent de coloration pour faire diffuser l'agent de coloration dans la totalité de l'épaisseur de la couche superficielle photodégradée de l'article. Application: aux articles d'optique et ophtalmiques.
Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, 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, US, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, SD, SL, SZ, TZ, 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, GW, ML, MR, NE, SN, TD, TG).
Publication Language: French (FR)
Filing Language: French (FR)