Title:
METHOD FOR PRODUCING CIRCULARLY POLARIZED LIGHT ISOLATION SHEET, AND APPARATUS FOR COATING FILM FORMATION
Document Type and Number:
WIPO Patent Application WO/2008/007782
Kind Code:
A1
Abstract:
This invention provides a method for producing a circularly polarized light
isolation sheet, which can simply produce a circularly polarized light isolation
sheet capable of realizing selective reflection in the whole visible light region,
and an apparatus for coating film formation. The method for producing a circularly
polarized light isolation sheet comprises the steps of providing a coating film
of a liquid crystal compound-containing photopolymerizable composition onto
a base material, and forming the above coating film in a resin layer having cholesteric
regularity. The resin layer formation step is characterized by comprising
(1) a selective ultraviolet light irradiation step of applying selective ultraviolet
light to the coating film at an illuminance of less than 10 mW/cm2 at
a temperature of 20 to 40°C for 0.1 to 6 sec, (2) a cholesteric regularity
regulation step of varying the cycle of the cholesteric regularity of the coating
film, and (3) a coating film curing step of curing the coating film to form a resin
layer having cholesteric regularity, the selective ultraviolet irradiation
step (1) and the cholesteric regularity regulation step (2) being repeated a
plurality of times.
Inventors:
KANNO, Hiroshi (6-2 Marunouchi 1-chome, Chiyoda-k, Tokyo 46, 1008246, JP)
菅野 寛 (〒46 東京都千代田区丸の内一丁目６番２号 日本ゼオン株式会社内 Tokyo, 1008246, JP)
HANEDA, Tsutomu (6-2 Marunouchi 1-chome, Chiyoda-k, Tokyo 46, 1008246, JP)
羽根田 努 (〒46 東京都千代田区丸の内一丁目６番２号 日本ゼオン株式会社内 Tokyo, 1008246, JP)
TAKAI, Hirokazu (6-2 Marunouchi 1-chome, Chiyoda-k, Tokyo 46, 1008246, JP)
菅野 寛 (〒46 東京都千代田区丸の内一丁目６番２号 日本ゼオン株式会社内 Tokyo, 1008246, JP)
HANEDA, Tsutomu (6-2 Marunouchi 1-chome, Chiyoda-k, Tokyo 46, 1008246, JP)
羽根田 努 (〒46 東京都千代田区丸の内一丁目６番２号 日本ゼオン株式会社内 Tokyo, 1008246, JP)
TAKAI, Hirokazu (6-2 Marunouchi 1-chome, Chiyoda-k, Tokyo 46, 1008246, JP)
Application Number:
JP2007/064013
Publication Date:
January 17, 2008
Filing Date:
July 13, 2007
Export Citation:
Assignee:
ZEON CORPORATION (6-2 Marunouchi 1-chome, Chiyoda-ku Tokyo, 46, 1008246, JP)
日本ゼオン株式会社 (〒46 東京都千代田区丸の内一丁目６番２号 Tokyo, 1008246, JP)
KANNO, Hiroshi (6-2 Marunouchi 1-chome, Chiyoda-k, Tokyo 46, 1008246, JP)
菅野 寛 (〒46 東京都千代田区丸の内一丁目６番２号 日本ゼオン株式会社内 Tokyo, 1008246, JP)
HANEDA, Tsutomu (6-2 Marunouchi 1-chome, Chiyoda-k, Tokyo 46, 1008246, JP)
羽根田 努 (〒46 東京都千代田区丸の内一丁目６番２号 日本ゼオン株式会社内 Tokyo, 1008246, JP)
日本ゼオン株式会社 (〒46 東京都千代田区丸の内一丁目６番２号 Tokyo, 1008246, JP)
KANNO, Hiroshi (6-2 Marunouchi 1-chome, Chiyoda-k, Tokyo 46, 1008246, JP)
菅野 寛 (〒46 東京都千代田区丸の内一丁目６番２号 日本ゼオン株式会社内 Tokyo, 1008246, JP)
HANEDA, Tsutomu (6-2 Marunouchi 1-chome, Chiyoda-k, Tokyo 46, 1008246, JP)
羽根田 努 (〒46 東京都千代田区丸の内一丁目６番２号 日本ゼオン株式会社内 Tokyo, 1008246, JP)
International Classes:
G02B5/30; B05C9/12; B05C9/14; B05D3/06; G02F1/1335; G02B5/30; B05C9/08; B05C9/14; B05D3/06; G02F1/13
Attorney, Agent or Firm:
SAKAI, Hiroaki (Sakai International Patent Office, Kasumigaseki Building2-5, Kasumigaseki 3-chome,Chiyoda-k, Tokyo 19, 1006019, JP)
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