PHOTOCHROMIC CURABLE COMPOSITION AND CURED ARTICLES THEREOF

Title:

PHOTOCHROMIC CURABLE COMPOSITION AND CURED ARTICLES THEREOF

Document Type and Number:

WIPO Patent Application WO/2002/048220

Kind Code:

A1

Abstract:

A process for producing a photochromic cured article which is made of a dispersion of an organic photochromic compound in a polymer matrix and inhibited from lowering in the color density and the fading speed without damage to the mechanical and optical properties (such as hardness) of the article. Specifically, the photochromic cured article is produced by curing a photochromic curable composition which comprises a polymerizable monomer having a biphenyl skeleton (e.g., p-phenylphenyl methacrylate), a polyfunctional polymerizable monomer free from biphenyl skeleton (e.g., a mixture of trimethylolpropane trimethacrylate and triethylene glycol dimethacrylate), and an organic photochromic compound.

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Inventors:

KAWASAKI TAKAYOSHI (JP)

Application Number:

PCT/JP2001/010390

Publication Date:

June 20, 2002

Filing Date:

November 28, 2001

Export Citation:

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Assignee:

TOKUYAMA CORP (JP)
KAWASAKI TAKAYOSHI (JP)

International Classes:

C08F220/12; C08F220/18; C08F220/30; C08F222/12; C08F222/20; C09K9/02; G02B5/23; G03C1/73; (IPC1-7): C08F220/12; C08L33/06; G02B1/04; G02B5/23; G02B7/10

Foreign References:

EP0331217A1	1989-09-06
JPH01163287A	1989-06-27
EP1130038A1	2001-09-05
JPH05105730A	1993-04-27
JPH04202308A	1992-07-23
EP0519410A2	1992-12-23

Other References: