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Patent Searching and Data


Title:
PHOTOCHROMIC COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2011/071183
Kind Code:
A1
Abstract:
Disclosed is a photochromic composition comprising 100 parts by mass of an indeno[2,1-f]naphtho[1,2-b]pyran compound having the skeleton represented by formula (I) and 1-300 parts by mass of an ultraviolet absorber which shows maximum absorption in the wavelength range of 280-330 nm as the longest-wavelength maximum absorption.

Inventors:
TAKENAKA Junji (1-1 Mikage-ch, Shunan-shi Yamaguchi 53, 〒7450053, JP)
竹中 潤治 (〒53 山口県周南市御影町1番1号 株式会社トクヤマ内 Yamaguchi, 〒7450053, JP)
Application Number:
JP2010/072593
Publication Date:
June 16, 2011
Filing Date:
December 09, 2010
Export Citation:
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Assignee:
TOKUYAMA CORPORATION (1-1 Mikage-cho, Shunan-shi, Yamaguchi 53, 〒7450053, JP)
株式会社トクヤマ (〒53 山口県周南市御影町1番1号 Yamaguchi, 〒7450053, JP)
TAKENAKA Junji (1-1 Mikage-ch, Shunan-shi Yamaguchi 53, 〒7450053, JP)
International Classes:
C09K9/02; G03C1/685
Domestic Patent References:
WO2001060811A1
WO2005075193A1
WO2007032127A1
Foreign References:
JPH0446333A
JP2007507569A
JPH11511199A
Attorney, Agent or Firm:
OHSHIMA Masataka (OHSHIMA PATENT OFFICE, BN Gyoen Building, 17-11, Shinjuku 1-chome, Shinjuku-ku Tokyo 22, 〒1600022, JP)
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