Global patent index - EP 1078284 A1

EP 1078284 A1 2001-02-28 - METHOD FOR COLOURING FLEXIBLE HYDROPHILIC CONTACT LENSES

Title (en)

METHOD FOR COLOURING FLEXIBLE HYDROPHILIC CONTACT LENSES

Title (de)

VERFAHREN ZUM FÄRBEN VON WEICHEN KONTAKTLINSEN

Title (fr)

PROCEDE DE COLORATION DE LENTILLES DE CONTACT HYDROPHILES SOUPLES

Publication

EP 1078284 A1 (FR)

Application

EP 00900606 A

Priority

  • FR 0000102 W
  • FR 9900958 A

Abstract (en)

[origin: FR2789081A1] The invention concerns a method which consists in contacting the contact lens with an aqueous solution containing a solvent for swelling the polymer material forming the lens, and a colouring agent selected among the azoic complex chromium salts and their mixtures and in removing the lens from the solution. The invention is useful for producing brown coloured contact lenses.

IPC 1-7 (main, further and additional classification)

G02B 1/04; B29D 11/00

IPC 8 full level (invention and additional information)

G02C 7/04 (2006.01); B29D 11/00 (2006.01); C08J 7/02 (2006.01); D06P 3/00 (2006.01); D06P 5/00 (2006.01); G02B 1/04 (2006.01)

CPC (invention and additional information)

B29D 11/00317 (2013.01); G02B 1/043 (2013.01)

Citation (search report)

See references of WO 0045198A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

FR 2789081 A1 20000804; FR 2789081 B1 20010420; EP 1078284 A1 20010228; JP 2002535733 A 20021022; NO 20004870 A 20000928; NO 20004870 D0 20000928; WO 0045198 A1 20000803

INPADOC legal status

2004-02-04 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030801

2001-04-04 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20010205

2001-02-28 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE