POLARIZING FILM AND METHOD OF MANUFACTURING THE SAME

Title:

POLARIZING FILM AND METHOD OF MANUFACTURING THE SAME

Document Type and Number:

WIPO Patent Application WO/1985/002814

Kind Code:

A1

Abstract:

A polarizing film which includes a substrate resin and a dichromic substance features: (1) the uniaxial orientation coefficient f of the crystal principal axis of the film with respect to the reference axis is 0.7 or more; and the product (f x R), which is between the uniaxial orientation coefficient f and the ratio R (R=(Imin/Imax) x 100) between the maximum value (Imax) and the minimum value (Imin) of the X-ray diffraction intensities on the Debye-Scherrer ring which are measured when X-rays are applied to the surface orthogonal to the reference axis in parallel to the reference axis, is 10 or more. Also disclosed is a method of manufacturing the polarizing film. This polarizing film has excellent heat-resistant and moisture-resistant properties and a high degree of polarization.

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Inventors:

HOSONUMA SIN (JP)
FUJIO JUNICHI (JP)
TANAKA KOZO (JP)
SUZUKI HARUE (JP)
BABA KENICHI (JP)
NAKAMURA KATSUJI (JP)
NAKATSUKA MASAKATSU (JP)
NISHIZAWA TSUTOMU (JP)

Application Number:

PCT/JP1984/000604

Publication Date:

July 04, 1985

Filing Date:

December 19, 1984

Export Citation:

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Assignee:

MITSUI TOATSU CHEMICALS (JP)

International Classes:

B29C55/04; B29C55/06; B29C55/08; B29D7/01; B29D11/00; G02B5/30; B29C55/00; (IPC1-7): B29D11/00; B29C55/04; B29C55/08; B29D7/01; G02B1/08; G02B5/30

Foreign References:

JPS58125002A	1983-07-25
JPS58124621A	1983-07-25
JPS5868008A	1983-04-22
JPS5866902A	1983-04-21
JPS5784409A	1982-05-26
JPS56158301A	1981-12-07

Other References: