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Patent Searching and Data


Title:
LAMINATE
Document Type and Number:
WIPO Patent Application WO/2020/179434
Kind Code:
A1
Abstract:
[Problem] To provide a laminate in which a plurality of positions are present where a substrate film and an optical functional layer are laminated, and a desired substrate film can preferentially peeled off from the optical functional layer. [Solution] This laminate 10 is provided with, in the following order: a first substrate film 1A; a first optical functional layer 2A including a layer obtained by curing a first polymerizable liquid crystal compound; a second optical functional layer 2B including a layer obtained by curing a second polymerizable liquid crystal compound; and a second substrate film 1B. In-plane peeling force P1 between the first substrate film 1A and the first optical functional layer 2A and in-plane peeling force P2 between the second substrate film 1B and the second optical functional layer 2B satisfy the following expression (1), and the thickness T1 of the first substrate film 1A and the thickness T2 of the second substrate film 1B satisfy the following expression (2). (1): 0.67

Inventors:
SUMIYOSHI SUZUKA (JP)
JINNO AYANO (JP)
Application Number:
PCT/JP2020/006270
Publication Date:
September 10, 2020
Filing Date:
February 18, 2020
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/30; B32B7/023; G06F3/041; H01L27/32; H01L51/50; H05B33/02
Domestic Patent References:
WO2018221232A12018-12-06
Foreign References:
JP2004070344A2004-03-04
JP2006106653A2006-04-20
JP2008102227A2008-05-01
JP2015022248A2015-02-02
JP2002014233A2002-01-18
JP2015034851A2015-02-19
JP2004226763A2004-08-12
JP2004309771A2004-11-04
JP2004226762A2004-08-12
JP2005173621A2005-06-30
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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