Title:
METHOD FOR DYEING A PLASTIC SUBSTRATE OF HIGH REFRACTIVE INDEX AND SUBSTRATE OBTAINED BY THIS METHOD
Document Type and Number:
WIPO Patent Application WO/2011/058460
Kind Code:
A8
Abstract:
Method for dyeing a substrate prepared by curing a polymerizable composition comprising one monomer containing one episulfide group, said method comprising: - providing a dye solution comprising a dye and a carrier in a solvent, the carrier being chosen from the compounds represented by the following formulae (1) and (2): formula (1) : wherein R1, R2, R3 and R4 are each selected from the group consisting of alkyl having from 1 to 10 carbon atom, H, -CH2SH, -CH2SCH2CH2SH, Formula (III), Formula (IV); * formula (2) : (HSCH2)4-mC(CH2SCH2CH2SH)m (2) wherein m denotes an integer from 1 to 3; And -at least partially immersing the substrate in the dye solution for a time sufficient to allow the effective tinting of the substrate.
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Inventors:
LIU YU (FR)
SONG LIXIN (FR)
LIM YAW CHUAN (FR)
WANG LIKUI (FR)
SONG LIXIN (FR)
LIM YAW CHUAN (FR)
WANG LIKUI (FR)
Application Number:
PCT/IB2010/054662
Publication Date:
July 07, 2011
Filing Date:
October 14, 2010
Export Citation:
Assignee:
ESSILOR INT (FR)
LIU YU (FR)
SONG LIXIN (FR)
LIM YAW CHUAN (FR)
WANG LIKUI (FR)
LIU YU (FR)
SONG LIXIN (FR)
LIM YAW CHUAN (FR)
WANG LIKUI (FR)
International Classes:
D06P1/651; B29D11/00; C08J7/046; C08J7/06; G02B1/04; G02C7/04
Attorney, Agent or Firm:
SALOU, Clarisse (B.P 2371, avenue de la Grande Armée Paris Cedex 17, FR)
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