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1. (WO2018021356) POROUS POLYIMIDE FILM PRODUCTION METHOD AND POROUS POLYIMIDE FILM PRODUCED USING SAID METHOD
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/021356 International Application No.: PCT/JP2017/026935
Publication Date: 01.02.2018 International Filing Date: 25.07.2017
IPC:
C08J 9/28 (2006.01) ,C08G 73/10 (2006.01)
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
9
Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
28
by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
73
Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen or carbon, not provided for in groups C08G12/-C08G71/238
06
Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule; Polyhydrazides; Polyamide acids or similar polyimide precursors
10
Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
Applicants: UBE INDUSTRIES, LTD.[JP/JP]; 1978-96, Oaza Kogushi, Ube-shi, Yamaguchi 7558633, JP
Inventors: OHYA, Shusei; JP
MATSUO, Makoto; JP
FUJII, Yuuichi; JP
BAMBA, Keita; JP
Agent: AOKI, Atsushi; JP
WATANABE, Yoichi; JP
DENO, Satoru; JP
MITSUHASHI, Shinji; JP
Priority Data:
2016-14581125.07.2016JP
Title (EN) POROUS POLYIMIDE FILM PRODUCTION METHOD AND POROUS POLYIMIDE FILM PRODUCED USING SAID METHOD
(FR) PROCÉDÉ DE PRODUCTION DE FILM DE POLYIMIDE POREUX ET FILM DE POLYIMIDE POREUX PRODUIT À L'AIDE DUDIT PROCÉDÉ
(JA) 多孔質ポリイミド膜の製造方法、及び当該方法で製造される多孔質ポリイミド膜
Abstract:
(EN) The present invention pertains to a porous polyimide film production method and a porous polyimide film produced using said method, said method including: a step (1) in which a polyamic acid solution comprising 40%-97% by mass organic polar solvent and 3%-60% by mass polyamic acid having an intrinsic viscosity, comprising tetracarboxylic acid units and diamine units, of 1.0-3.0 is cast in film form and immersed in or caused to come in contact with a coagulating solvent having water as an essential component thereof, and a porous film of polyamic acid is produced; and a step (2) in which the porous film of polyamic acid obtained in said step is heat treated and imidized. Shrinkage in the film longitudinal direction and transverse direction after heat treatment is suppressed to no more than 8% for each direction and the speed of temperature increase in a temperature range of at least 200°C during the heat treatment is at least 25°C/min.
(FR) La présente invention concerne un procédé de production d'un film de polyimide poreux et un film de polyimide poreux produit à l'aide dudit procédé, ledit procédé comportant : une étape (1) dans laquelle une solution de poly(acide amique) comprenant 40 % à 97 % en masse d'un solvant polaire organique et 3 % à 60 % en masse d'un poly(acide amique) ayant une viscosité intrinsèque, comprenant des unités acide tétracarboxylique et des unités diamine, de 1,0 à 3,0, est coulée sous forme d'un film et est immergée dans un solvant de coagulation ayant de l'eau en tant que constituant essentiel, ou est amenée à entrer en contact avec ce dernier, et un film poreux de poly(acide amique) est produit ; et une étape (2), dans laquelle le film poreux de poly(acide amique) obtenu dans ladite étape est soumis à un traitement thermique et imidé. Le retrait dans le sens longitudinal et dans le sens transversal du film après traitement thermique est supprimé, pour atteindre une valeur non supérieure à 8 % dans chaque sens, et la vitesse de montée en température, dans la plage de températures d'au moins 200 °C pendant le traitement thermique, est d'au moins 25 °C/min.
(JA) 本発明は、(1)テトラカルボン酸単位及びジアミン単位からなる極限粘度数が1.0~3.0であるポリアミック酸3~60質量%と有機極性溶媒40~97質量%とからなるポリアミック酸溶液をフィルム状に流延し、水を必須成分とする凝固溶媒に浸漬又は接触させて、ポリアミック酸の多孔質膜を作製する工程、及び(2)前記工程で得られたポリアミック酸の多孔質膜を熱処理してイミド化する工程、ここで、熱処理後の膜の縦方向及び横方向の収縮率をそれぞれ8%以下に抑制して、かつ前記熱処理において200℃以上の温度域での昇温速度が25℃/分以上である、を含む、多孔質ポリイミド膜の製造方法、及び当該方法で製造される多孔質ポリイミド膜に関する。
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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)