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PROCESS FOR PRODUCING PHOTOCHROMIC OPTICAL ARTICLES

  • US 20150205020A1
  • Filed: 03/31/2015
  • Published: 07/23/2015
  • Est. Priority Date: 06/30/2006
  • Status: Abandoned Application
First Claim
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1. An optical article comprising a laminate structure consisting of an optical substrate, a photochromic layer formed from a coating solution containing a radical polymerizing monomer, a compound having a silanol group or a group capable of preparing a silanol group by hydrolysis and a photochromic compound and a primer layer therebetween, wherein a surface of the optical substrate and the photochromic layer are bonding through the primer layer, and wherein said radical polymerizing monomer excludes (i) monomers having a silanol group or monomers having a group capable of preparing a silanol group by hydrolysis and (ii) monomers having a maleimide group, said optical article obtained by a process comprising the steps of:

  • (A) forming the primer layer on the surface of the optical substrate by applying a primer comprising an emulsion containing a dispersed urethane resin in a colloidal particle state or a more bulky particle state in water or a dispersing medium which comprises a mixture of an organic solvent having high affinity with water and water; and

    (B) forming the photochromic layer on the primer layer formed in step (A);

    wherein the primer is an emulsion comprising a urethane resin having a silanol group and at least one group selected from the group consisting of an acryloyloxy group and a methacryloyloxy group.

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