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Patent Searching and Data


Title:
METHOD FOR PRODUCING MULTILAYER BODY
Document Type and Number:
WIPO Patent Application WO/2019/171876
Kind Code:
A1
Abstract:
Provided is a method for producing a multilayer body which comprises an optical film that is improved in terms of orientation. This method for producing a multilayer body (10) comprises a coating film formation step, a drying step, a first heating step (P1) and a first cooling step (P2) (cooling step). In the first heating step (P1), a dry coating film (97) that contains a liquid crystal polymer (21), which is a liquid crystal compound, and a dichroic compound (31) is heated to a first temperature (T1) that is higher than the melting point of the dichroic compound. In the first cooling step (P2), the dry coating film (97) after the first heating step (P1) is cooled from the first temperature (T1) to a second temperature (T2) which is lower than the crystallization temperature (Tc) of the dichroic compound (31), and which is also lower than the crystallization temperature (Ts) of the liquid crystal polymer (21).

Inventors:
KODO ATSUSHI (JP)
HAMACHI YOHEI (JP)
NISHIMURA NAOYA (JP)
Application Number:
JP2019/004545
Publication Date:
September 12, 2019
Filing Date:
February 08, 2019
Export Citation:
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Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B5/30; B32B37/06; B32B37/08
Domestic Patent References:
WO2017154907A12017-09-14
WO2017090668A12017-06-01
WO2017195833A12017-11-16
Foreign References:
JP2013033249A2013-02-14
Attorney, Agent or Firm:
KYORITSU INSTITUTE (JP)
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