Title:
ACTIVE ENERGY RAY CURABLE COMPOSITION, TRANSPARENT FILM MADE OF THE COMPOSITION, AND OPTICAL DISK USING THE FILM
Document Type and Number:
WIPO Patent Application WO/2008/001855
Kind Code:
A1
Abstract:
Disclosed is an active energy ray curable composition which can be easily molded into a continuous film roll that is transparent and small in optical distortion, while being excellent in toughness, heat resistance and secondary workability. Also disclosed are a transparent film made of such a composition and an optical disk with little warp which is made of such a composition. One example of the active energy ray curable composition contains 30-60 parts by weight of a urethane (meth)acrylate, 20-50 parts by weight of a phenoxy (meth)acrylate and 0-30 parts by weight of an epoxy (meth)acrylate. An optical disk is formed by arranging a transparent film layer made of the composition on a supporting substrate as a protection film or a light-transmitting layer.
Inventors:
NIIMI KAORU (JP)
Application Number:
PCT/JP2007/063020
Publication Date:
January 03, 2008
Filing Date:
June 28, 2007
Export Citation:
Assignee:
MITSUBISHI PLASTICS INC (JP)
NIIMI KAORU (JP)
NIIMI KAORU (JP)
International Classes:
C08F299/06; C08J5/18
Foreign References:
| JPH05279436A | 1993-10-26 | |||
| JP2001163937A | 2001-06-19 | |||
| JPH1173684A | 1999-03-16 |
Attorney, Agent or Firm:
TAKEUCHI, Saburo et al. (Ichizawa & Associates6F., Akasaka 2-chome Annex,19-8, Akasaka 2-chom, Minato-ku Tokyo 52, JP)
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