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1. (WO2018079746) WIDE-BAND WAVELENGTH FILM, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING CIRCULAR POLARIZATION FILM
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Pub. No.: WO/2018/079746 International Application No.: PCT/JP2017/038999
Publication Date: 03.05.2018 International Filing Date: 27.10.2017
IPC:
G02B 5/30 (2006.01) ,B29C 55/14 (2006.01) ,B32B 7/02 (2006.01) ,B29K 25/00 (2006.01) ,B29K 45/00 (2006.01) ,B29L 7/00 (2006.01) ,B29L 9/00 (2006.01) ,B29L 11/00 (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
14
successively
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
7
Layered products characterised by the relation between layers, i.e. products essentially comprising layers having different physical properties or products characterised by the interconnection of layers
02
in respect of physical properties, e.g. hardness
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
K
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
25
Use of polymers of vinyl-aromatic compounds as moulding material
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
K
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D103
45
Use of polymers of unsaturated cyclic compounds having no unsaturated aliphatic groups in a side-chain, e.g. coumarone-indene resins, as moulding material
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
9
Layered products
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
Applicants:
日本ゼオン株式会社 ZEON CORPORATION [JP/JP]; 東京都千代田区丸の内一丁目6番2号 6-2, Marunouchi 1-chome, Chiyoda-ku, Tokyo 1008246, JP
Inventors:
小林 孝央 KOBAYASHI, Takao; JP
高木 俊輔 TAKAGI, Shunsuke; JP
Agent:
特許業務法人酒井国際特許事務所 SAKAI INTERNATIONAL PATENT OFFICE; 東京都千代田区霞が関3丁目8番1号 虎の門三井ビルディング Toranomon Mitsui Building, 8-1, Kasumigaseki 3-chome, Chiyoda-ku, Tokyo 1000013, JP
Priority Data:
2016-21339531.10.2016JP
2017-20475823.10.2017JP
Title (EN) WIDE-BAND WAVELENGTH FILM, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING CIRCULAR POLARIZATION FILM
(FR) FILM DE LONGUEUR D'ONDE À LARGE BANDE, SON PROCÉDÉ DE PRODUCTION, ET PROCÉDÉ DE PRODUCTION D'UN FILM DE POLARISATION CIRCULAIRE
(JA) 広帯域波長フィルム及びその製造方法並びに円偏光フィルムの製造方法
Abstract:
(EN) This method for producing a wide-band wavelength film includes, in the following order, a first step for preparing a layer (A) which serves as a long obliquely stretched film, a second step in which a resin layer (B) having negative intrinsic birefringence is formed on layer (A) to obtain a multilayer film, and a third step in which the multilayer film is stretched in a stretching direction which forms an angle of 0˚±20˚ with respect to the width direction of the multilayer film, to obtain a long wide-band wavelength film provided with a λ/2 layer and a λ/4 layer.
(FR) Ce procédé de production d'un film de longueur d'onde à large bande comprend, dans l'ordre suivant, une première étape de préparation d'une couche (A) qui sert de long film étiré obliquement, une deuxième étape dans laquelle une couche de résine (B) ayant une biréfringence intrinsèque négative est formée sur la couche (A) pour obtenir un film multicouche, et une troisième étape dans laquelle le film multicouche est étiré selon une direction d'étirement qui forme un angle de 0° ± 20° par rapport à la direction de la largeur du film multicouche, pour obtenir un long film de longueur d'onde à large bande pourvu d'une couche λ/2 et d'une couche λ/4.
(JA) 長尺の斜め延伸フィルムとしての層(A)を用意する第一工程と、前記層(A)上に、固有複屈折が負の樹脂の層(B)を形成して、複層フィルムを得る第二工程と、前記複層フィルムを、当該複層フィルムの幅方向に対して0°±20°の角度をなす延伸方向に延伸して、λ/2層及びλ/4層を備える長尺の広帯域波長フィルムを得る第三工程と、をこの順に含む、広帯域波長フィルムの製造方法。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)