Dye composition for ophthalmic lens, method for producing colored ophthalmic lens using the same, and colored ophthalmic lens

US8927618B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8927618-B2
Application numberUS-92756410-A
CountryUS
Kind codeB2
Filing dateNov 18, 2010
Priority dateNov 18, 2009
Publication dateJan 6, 2015
Grant dateJan 6, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

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The present invention provides a dye composition for an ophthalmic lens, which is a dye composition used for dyeing an ophthalmic lens with an ink-jet coating equipment, characterized by the composition including: (A) a dye having at least one group having a carbon-carbon double bond selected from an α,β-unsaturated carbonyl group, a styryl group, a vinylbenzyl group and an allyl group per molecule; (B) a radical polymerization initiator; and (C) a solvent capable of dissolving at least a part of the component (A) and the component (B), and/or (D) a monomer having at least one radical polymerizable group per molecule.

First claim

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The invention claimed is: 1. A method for producing a colored ophthalmic lens comprising the steps of: (1) coating a dye composition for an ophthalmic lens in the form of fine droplets on the surface of an ophthalmic lens to form dots using ink-jet coating equipment, wherein heat is applied to the ophthalmic lens prior to coating the dye composition, the dye composition comprising: (A) a dye having at least one group having a carbon-carbon double bond selected from the group con…

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What does patent US8927618B2 cover?
The present invention provides a dye composition for an ophthalmic lens, which is a dye composition used for dyeing an ophthalmic lens with an ink-jet coating equipment, characterized by the composition including: (A) a dye having at least one group having a carbon-carbon double bond selected from an α,β-unsaturated carbonyl group, a styryl group, a vinylbenzyl group and an allyl group per mole…
Who is the assignee on this patent?
Goto Yuji, Ando Ichiro, Matsushita Ryo, and 1 more
What technology area does this patent fall under?
Primary CPC classification C09B69/106. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).