Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2018142991) METHOD FOR PRODUCING OBLIQUELY STRETCHED FILM, METHOD FOR PRODUCING POLARIZING PLATE, AND METHOD FOR PRODUCING LIQUID CRYSTAL DISPLAY DEVICE
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/142991 International Application No.: PCT/JP2018/001820
Publication Date: 09.08.2018 International Filing Date: 22.01.2018
IPC:
B29C 55/04 (2006.01) ,B29C 65/00 (2006.01) ,G02B 5/30 (2006.01) ,G02F 1/1335 (2006.01) ,B29K 101/12 (2006.01) ,B29L 7/00 (2006.01) ,B29L 11/00 (2006.01)
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
04
uniaxial, e.g. oblique
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
65
Joining of preformed parts; Apparatus therefor
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
30
Polarising elements
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333
Constructional arrangements
1335
Structural association of optical devices, e.g. polarisers, reflectors, with the cell
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
101
Use of unspecified macromolecular compounds as moulding material 
12
Thermoplastic materials
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
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:
五十嵐 充 IGARASHI Mitsuru; JP
Agent:
杉村 憲司 SUGIMURA Kenji; JP
Priority Data:
2017-01584931.01.2017JP
Title (EN) METHOD FOR PRODUCING OBLIQUELY STRETCHED FILM, METHOD FOR PRODUCING POLARIZING PLATE, AND METHOD FOR PRODUCING LIQUID CRYSTAL DISPLAY DEVICE
(FR) PROCÉDÉ DE PRODUCTION D'UN FILM ÉTIRÉ OBLIQUEMENT, PROCÉDÉ DE PRODUCTION D'UNE PLAQUE DE POLARISATION ET PROCÉDÉ DE PRODUCTION D'UN DISPOSITIF D'AFFICHAGE À CRISTAUX LIQUIDES
(JA) 斜め延伸フィルムの製造方法、偏光板の製造方法、および液晶表示装置の製造方法
Abstract:
(EN) Provided is a method for producing an obliquely stretched film, in which there is minimal rupturing in the joining portion of thermoplastic resin films in an oblique stretching step, and obliquely stretched films can be continuously produced. A method for producing an obliquely stretched film comprising a joining step in which a thermoplastic resin film conveyed first and a thermoplastic resin film conveyed subsequently are joined with a joining portion interposed therebetween, a preheating step in which the thermoplastic resin films joined with the joining portion interposed therebetween are preheated while being continuously conveyed, and an oblique stretching step in which the preheated thermoplastic resin films are obliquely stretched while being continuously conveying, wherein the thermoplastic resin film conveyed first and the thermoplastic resin film conveyed subsequently are identical thermoplastic resin films, and formulae (1) and (2) below hold, where T (°C) is the preheating temperature of the joining portion in the preheating step, t (seconds) is the preheating time of the joining portion in the preheating step, and Tg (°C) is the glass transition temperature of the thermoplastic resin in the thermoplastic resin film. Tg < T ≤ Tg + 60 (1) 2≤ t (2)
(FR) L'invention concerne un procédé de production d'un film étiré obliquement, dans lequel la rupture dans la partie de liaison de films en résine thermoplastique dans une étape d'étirage oblique est minimale et des films étirés obliquement peuvent être produits en continu. Selon l'invention, un procédé de production d'un film étiré obliquement comprend une étape de liaison, dans laquelle un film en résine thermoplastique transporté en premier et un film en résine thermoplastique transporté par la suite sont reliés avec une partie de liaison interposée entre eux, une étape de préchauffage, dans laquelle les films en résine thermoplastique reliés avec la partie de liaison interposée entre eux sont préchauffés tout en étant transportés en continu, et une étape d'étirage oblique, dans laquelle les films en résine thermoplastique préchauffés sont étirés obliquement tout en étant transportés en continu, le film en résine thermoplastique transporté en premier et le film en résine thermoplastique transporté par la suite étant des films en résine thermoplastique identiques et les formules (1) et (2) ci-dessous étant respectées, où T (°C) est la température de préchauffage de la partie de liaison dans l'étape de préchauffage, t (secondes) est le temps de préchauffage de la partie de liaison dans l'étape de préchauffage et Tg (°C) est la température de transition vitreuse de la résine thermoplastique dans le film en résine thermoplastique. Tg < T ≤ Tg + 60 (1) 2≤ t (2)
(JA) 斜め延伸工程において熱可塑性樹脂フィルムの接合部が破断するのを抑制して、斜め延伸フィルムを連続して製造することができる斜め延伸フィルムの製造方法等を提供する。 先行して搬送される熱可塑性樹脂フィルムと、後行して搬送される熱可塑性樹脂フィルムとを、接合部を介して接合する接合工程と、前記接合部を介して接合された熱可塑性樹脂フィルムを連続搬送しながら予熱する予熱工程と、前記予熱された熱可塑性樹脂フィルムを連続搬送しながら斜め延伸する斜め延伸工程と、を含む、斜め延伸フィルムの製造方法であって、前記先行して搬送される熱可塑性樹脂フィルムと、前記後行して搬送される熱可塑性樹脂フィルムとは同一の熱可塑性樹脂フィルムであり、前記予熱工程における前記接合部の予熱温度をT(℃)とし、前記予熱工程における前記接合部の予熱時間をt(秒間)とし、前記熱可塑性樹脂フィルムにおける熱可塑性樹脂のガラス転移温度をTg(℃)としたとき、下記式(1)および(2)を満たす、斜め延伸フィルムの製造方法。 Tg<T≦Tg+60 ・・・(1) 2≦t ・・・(2)
front page image
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)