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1. (WO2006013869) THERMOPLASTIC FILM AND METHOD OF PRODUCING THE SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2006/013869 International Application No.: PCT/JP2005/014152
Publication Date: 09.02.2006 International Filing Date: 27.07.2005
IPC:
G02B 5/30 (2006.01) ,B29C 55/16 (2006.01) ,C08J 5/18 (2006.01) ,G02F 1/13363 (2006.01) ,B29L 7/00 (2006.01) ,B29L 11/00 (2006.01) ,C08L 101/00 (2006.01)
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
30
Polarising elements
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
55
Shaping by stretching, e.g. drawing through a die; Apparatus therefor
02
of plates or sheets
10
multiaxial
12
biaxial
16
simultaneously
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5
Manufacture of articles or shaped materials containing macromolecular substances
18
Manufacture of films or sheets
[IPC code unknown for ERROR IPC Code incorrect: invalid subgroup (0=>999999)!]
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
L
INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C59
7
Flat articles, e.g. films or sheets
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
L
INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C59
11
Optical elements, e.g. lenses, prisms
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
101
Compositions of unspecified macromolecular compounds
Applicants:
OTOSHI, Masaaki [JP/JP]; JP (UsOnly)
HASHIMOTO, Kiyokazu [JP/JP]; JP (UsOnly)
FUJIFILM CORPORATION [JP/JP]; 26-30, Nishiazabu 2-chome Minato-ku, Tokyo 106-8620, JP (AllExceptUS)
Inventors:
OTOSHI, Masaaki; JP
HASHIMOTO, Kiyokazu; JP
Agent:
MATSUURA, Kenzo; Matsuura & Associates P.O. Box 176 Shinjuku Sumitomo Bldg. 39F 6-1, Nishi-shinjuku 2-chome Shinjuku-ku, Tokyo 163-0239, JP
Priority Data:
2004-22806904.08.2004JP
Title (EN) THERMOPLASTIC FILM AND METHOD OF PRODUCING THE SAME
(FR) FILM THERMOPLASTIQUE ET MÉTHODE POUR PRODUIRE CE FILM
Abstract:
(EN) A method of producing a thermoplastic film, which can increase uniformity of Re and Rth of a thermoplastic film obtained by stretching, and which can provide a thermoplastic film having few display irregularities when the film is incorporated into a liquid crystal display device as a retardation film, and a thermoplastic film produced by the method are provided. In a tenter, both ends in the width direction of the film are held with clips and the film is simultaneously stretched in the traveling direction A and the width direction B. By this, a thermoplastic film in which the number of adhesion marks is 10 marks/m2 or less, the in-plane retardation Re is 0 nm to 500 nm and the retardation Rth in the thickness direction is 30 nm to 500 nm is produced.
(FR) Cette invention décrit une méthode pour produire un film thermoplastique, qui peut augmenter l'uniformité Re et Rth d'un film thermoplastique obtenu par étirement, et qui peut donner un film thermoplastique qui contient peu d'irrégularités d'affichage quand le film est incorporé dans un dispositif d'affichage en cristaux liquides comme film de retard et un film thermoplastique produit par la méthode décrite. Dans une rame, les deux extrémités, dans le sens de la largeur du film, sont maintenues avec des crochets et le film est étiré, simultanément, dans le sens de déroulement A et dans le sens de la largeur B. Par cette méthode, un film thermoplastique dans lequel le nombre de points d'adhésion est de 10 points/m2 ou moins, le retard en traînée Re est de 0 nm à 500 nm et le retard dans le sens de l'épaisseur est de 30 nm à 500 nm, est produit.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)