RETARDATION FILM AND PROCESS FOR PRODUCING THE SAME

Title:

RETARDATION FILM AND PROCESS FOR PRODUCING THE SAME

Document Type and Number:

WIPO Patent Application WO/2006/106639

Kind Code:

A1

Abstract:

A retardation film that excels in durability under temperature change, etc.; and a process for producing the same. Especially, a retardation film that simultaneously attains reverse wavelength dispersion and durability; and a process for producing the same. In particular, there is provided a retardation film characterized by containing a specified cellulose acylate as component (A) and cellulose ether or cellulose acylate of ≥0.30 hydroxyl residue having a molecular weight different from that of the component (A) as component (B).

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Inventors:

Kawai, Yoshikazu c/o KANEKA CORPORATION (2-1-1 Hieitsuji, Otsu-sh, Shiga 04, 52001, JP)
Shintaku, Masato c/o KANEKA CORPORATION (2-1-1 Hieitsuji, Otsu-sh, Shiga 04, 52001, JP)
Nakamura, Masaaki c/o KANEKA CORPORATION (2-1-1 Hieitsuji, Otsu-sh, Shiga 04, 52001, JP)

Application Number:

PCT/JP2006/306205

Publication Date:

October 12, 2006

Filing Date:

March 28, 2006

Export Citation:

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Assignee:

KANEKA CORPORATION (2-4 Nakanoshima 3-chome, Kita-ku Osaka-sh, Osaka 88, 53082, JP)
Kawai, Yoshikazu c/o KANEKA CORPORATION (2-1-1 Hieitsuji, Otsu-sh, Shiga 04, 52001, JP)
Shintaku, Masato c/o KANEKA CORPORATION (2-1-1 Hieitsuji, Otsu-sh, Shiga 04, 52001, JP)
Nakamura, Masaaki c/o KANEKA CORPORATION (2-1-1 Hieitsuji, Otsu-sh, Shiga 04, 52001, JP)

International Classes:

G02B5/30; B29C41/28; B29C55/02; C08J5/18; C08L1/10; B29K1/00; B29L7/00

Attorney, Agent or Firm:

KANEKA CORPORATION (2-4 Nakanoshima 3-chome, Kita-ku Osaka-sh, Osak 88, 53082, JP)

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