Invention Grant
- Patent Title: Cellulose acylate film and method for producing same, and retardation film, polarizing plate and liquid crystal display device comprising the film
- Patent Title (中): 纤维素酰化物膜及其制造方法,以及延迟膜,偏振片和包括该膜的液晶显示装置
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Application No.: US11798851Application Date: 2007-05-17
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Publication No.: US07955666B2Publication Date: 2011-06-07
- Inventor: Yasuyuki Sasada
- Applicant: Yasuyuki Sasada
- Applicant Address: JP Minato-Ku, Tokyo
- Assignee: Fujifilm Corporation
- Current Assignee: Fujifilm Corporation
- Current Assignee Address: JP Minato-Ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2006-139566 20060518
- Main IPC: C09K19/00
- IPC: C09K19/00 ; C08B3/00

Abstract:
A Cellulose acylate film, in which X-ray diffraction intensity satisfies following formulae and a half-value width of the peak at 2θ2 is 3° or less: 0.40≦Ic/(Iam+Ic)≦0.85; Iam=I1+{(I3−I1)/(2θ3−2θ1)×(2θ2−2θ1)}; and Ic=I2−Iam, wherein when it is assumed that θ is the Bragg angle, 2θ1 and 2θ3 indicate 2θ at which the intensity becomes the minimum in the 2θ range of 4° to 5° and 14° to 16°, respectively, 2θ2 indicates 2θ at which the intensity becomes the maximum in the 2θ range of 5° to 10°, and I1, I2 and I3 indicate a diffractive intensity at 2θ1, 2θ2 and 2θ3, respectively.
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