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Title:
PROCESS FOR PRODUCTION OF LAMINATE, AND LAMINATE
Document Type and Number:
WIPO Patent Application WO/2011/007784
Kind Code:
A1
Abstract:
Disclosed are a novel laminate having two or more polymer liquid crystal layers and a process for producing the laminate. Specifically disclosed is a process for producing a laminate comprising a first transparent resin layer, a first polymer liquid crystal layer, a second transparent resin layer and a second polymer liquid crystal layer, which comprises: curing a curable resin while contacting the curable resin with a mold and transferring the mold to form a surface having liquid crystal alignmentability, thereby forming the first transparent resin layer; forming a layer of a curable liquid crystal monomer or a cross-linkable polymer liquid crystal on the surface having liquid crystal alignmentability of the first transparent resin layer; curing or cross-linking the layer while aligning a liquid crystal thereon to form the first polymer liquid crystal layer; and forming the second transparent resin layer and the second polymer liquid crystal layer on the first polymer liquid crystal layer side in the same manner as mentioned above. In the process, the liquid crystal alignment direction of the surface of the second transparent resin layer is adjusted to a different direction from the liquid crystal alignment direction of the surface of the first transparent resin layer in the formation of the second transparent resin layer. Also specifically disclosed is a laminate which comprises a first transparent resin layer, a first polymer liquid crystal layer, a second transparent resin layer and a second polymer liquid crystal layer, wherein a surface of the first transparent resin layer which contacts with the first polymer liquid crystal layer has liquid crystal alignmentability and a surface of the second transparent resin layer which contacts with the second polymer liquid crystal layer has liquid crystal alignmentability in a different direction from that in the surface of the first transparent resin layer.

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Inventors:
YAMAMOTO YUJI (JP)
KAIDA YURIKO (JP)
KOGUCHI RYOHEI (JP)
SAKURAI HIROMI (JP)
Application Number:
PCT/JP2010/061850
Publication Date:
January 20, 2011
Filing Date:
July 13, 2010
Export Citation:
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Assignee:
ASAHI GLASS CO LTD (JP)
YAMAMOTO YUJI (JP)
KAIDA YURIKO (JP)
KOGUCHI RYOHEI (JP)
SAKURAI HIROMI (JP)
International Classes:
G02B5/30; B32B7/02
Foreign References:
JP2005516236A2005-06-02
JP2003002927A2003-01-08
JP2004226974A2004-08-12
JP2004226752A2004-08-12
JPH0643458A1994-02-18
JPH08313910A1996-11-29
JP2009167213A2009-07-30
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
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