LAYERED PRODUCT, OPTICAL PART, PROCESSES FOR PRODUCING THESE, AND COATING FLUID

Title:

LAYERED PRODUCT, OPTICAL PART, PROCESSES FOR PRODUCING THESE, AND COATING FLUID

Document Type and Number:

WIPO Patent Application WO2004078476

Kind Code:

A8

Abstract:

A layered product comprising a multilayer structure comprising an optical base and a cured polyurethane resin layer formed thereon from a moisture-curable polyurethane resin and/or a precursor therefor. The polyurethane resin layer is formed by applying a coating fluid comprising a moisture-curable polyurethane resin and/or precursor therefor and a solvent having a boiling point of 70°C or higher and a solubility parameter of 8 or larger. Also provided is a coating material comprising a radical-polymerizable monomer ingredient, a silicone or fluorochemical surfactant, and a photochromic compound. In producing a photochromic optical article, excellent adhesion between a base and a photochromic layer is attained.

Inventors:

IZUMI SHINOBU (JP)
MOMODA JUNJI (JP)

Application Number:

PCT/JP2004/001576

Publication Date:

November 18, 2004

Filing Date:

February 13, 2004

Export Citation:

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Assignee:

TOKUYAMA CORP (JP)
IZUMI SHINOBU (JP)
MOMODA JUNJI (JP)

International Classes:

C08G18/30; C09D175/04; G02B5/23; (IPC1-7): B32B27/40; C09D5/00; C09D175/04; G02B1/10; G02B5/23; G02C7/10

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