Title:
WHITE-REFLECTING FILM FOR LARGE-SCALE DISPLAY
Document Type and Number:
WIPO Patent Application WO/2017/010471
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a white-reflecting film that resists deflecting under heat while having exceptional reflection characteristics. The problem is overcome by a white-reflecting film that has a reflective layer A, wherein the white-reflecting film satisfies either condition (a) or condition (b) that the reflective layer A (a) comprises a thermoplastic resin composition A1 containing calcium carbonate particles in a thermoplastic resin A, the content of the calcium carbonate particles being 10─70% by mass with respect to the mass of the thermoplastic resin composition A1, or (b) comprises a thermoplastic resin composition A2 containing calcium carbonate particles in the thermoplastic resin A, and a resin that is incompatible with the thermoplastic resin A, the content of the calcium carbonate particles being 5─69% by mass with respect to the mass of the thermoplastic resin composition A2, the content of the incompatible resin being 1─40% by mass with respect to the mass of the thermoplastic resin composition A2, and the combined content of the calcium carbonate particles and the incompatible resin being 10─70% by mass with respect to the mass of the thermoplastic resin composition A2. The calcium carbonate particles have an average grain size of 0.1─1.2 μm. The relationship (D90 ‒ D10)/D50 ≤ 1.6 is satisfied, where D10, D50, and D90 are the 10%-, 50%-, and 90%-volume grain sizes, respectively, integrated from the small grain size side. The white-reflecting film has a reflectivity of at least 60%.
Inventors:
ASAI MASATO (JP)
KURAGAKI MASAHIRO (JP)
OKADA SHINICHIRO (JP)
OSAWA TOSHIHIRO (JP)
KURAGAKI MASAHIRO (JP)
OKADA SHINICHIRO (JP)
OSAWA TOSHIHIRO (JP)
Application Number:
PCT/JP2016/070505
Publication Date:
January 19, 2017
Filing Date:
July 12, 2016
Export Citation:
Assignee:
TEIJIN FILM SOLUTIONS LTD (JP)
International Classes:
G02B5/08; B32B27/00; B32B27/20; B32B27/36; F21S2/00; F21V7/00; F21V7/22; F21Y115/10
Foreign References:
| JP2015087420A | 2015-05-07 | |||
| JP2015086241A | 2015-05-07 | |||
| JP2007320239A | 2007-12-13 | |||
| JP2007326297A | 2007-12-20 |
Attorney, Agent or Firm:
TAMEYAMA, Taro (JP)
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