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Title:
COATING MATERIAL FOR FORMATION OF LIGHT-DIFFUSING LAYER, FILM FOR PROJECTION SCREEN, AND PROJECTION SCREEN
Document Type and Number:
WIPO Patent Application WO/2020/095566
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a coating material that is for formation of a light-diffusing layer and that can be used to obtain a projection screen having excellent balance between high transparency and high video display properties; a film that is for a projection screen and that includes a light-diffusing layer formed using the coating material; and a projection screen. The present invention that achieves the purpose is a coating material that is for formation of a light-diffusing layer of a projection screen and that contains: (A) 100 parts by mass of a base resin; and (B) 0.1-50 parts by mass of fine rare-earth phosphate particles. This coating material may further contain (C) 1-30 parts by mass of a silane-coupling agent, and/or (D) 1-30 parts by mass of a compound having an isocyanate group and a polymerizable functional group excluding an isocyanate group. The component (A) that is a base resin may contain (A1) a polyfunctional poly(meth)acrylate.

Inventors:
HASHIMOTO TAKETO (JP)
Application Number:
PCT/JP2019/038104
Publication Date:
May 14, 2020
Filing Date:
September 27, 2019
Export Citation:
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Assignee:
RIKEN TECHNOS CORP (JP)
International Classes:
G03B21/62; C09D4/02; C09D5/00; C09D7/61; C09D7/63; C09D175/00; C09D201/00; G02B5/02
Domestic Patent References:
WO2018147042A12018-08-16
WO2018025800A12018-02-08
WO2018025800A12018-02-08
Foreign References:
JP2001172627A2001-06-26
JP2015212800A2015-11-26
JP2017215355A2017-12-07
JP2014201495A2014-10-27
Other References:
SADAO MORI: "Size Exclusion Chromatography: High Performance Liquid Chromatography of Polymers", 10 December 1991, KYORITSU SHUPPAN CO., LTD.
See also references of EP 3879340A4
Attorney, Agent or Firm:
ASAMURA PATENT OFFICE, P.C. (JP)
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