-
公开(公告)号：DE2945139A1
公开(公告)日：1980-05-14
申请号：DE2945139
申请日：1979-11-08
Applicant: UBE INDUSTRIES
Inventor： SASAKI YOSHIKAZU , INOUE HIROSHI , SASAKI ICHIRO , ITATANI HIROSHI , KASHIMA MIKITO
IPC: C08G73/10
Abstract: A polyimide solution is prepared by a process wherein a tetracarboxylic acid ingredient containing at least about 80% by mole of 3,3',4,4'-biphenyltetracarboxylic acid or its functional derivative and an aromatic diamine ingredient containing at least about 50% by mole of 4,4'-diaminodiphenyl ether are polymerized at from about 100 DEG to 300 DEG C. in phenol or a halogenated phenolic compound; the amount of the acid and diamine ingredients being approximately equimolar to each other; whereby polymerization of the tetracarboxylic acid ingredient and the aromatic diamine ingredient is effected while being accompanied by imidation. Preferably, the polymerization accompanied by imidation is effected in a manner such that at least a second half of the polymerization is carried out in a closed reaction system. The resulting polyimide solution is suitable for making therefrom shaped articles, such as films, possessing excellent mechanical properties.
-
公开(公告)号：DE2304551A1
公开(公告)日：1973-10-18
申请号：DE2304551
申请日：1973-01-31
Applicant: UBE INDUSTRIES
Inventor： ITATANI HIROSHI , KASHIMA MIKITO , MATSUDA MASAOKI , YOSHIMOTO HATAAKI , YAMAMOTO HIROYUKI
IPC: C07C51/09 , C07C51/265 , C07C51/27 , C07C51/573 , C07C67/343 , C07C63/00
Abstract: A process for separating and purifying biphenyltetracarboxylic dianhdride isomers from a mixture of these isomers by fractional crystallization in aliphatic acid anhydrides or acetone. The isomeric mixture is obtained by heating biphenyltetracarboxylic acids, optionally in the presence of an aliphatic acid anhydride. The biphenyltetracarboxylic acids are obtained by oxidizing coupling dimers of o-xylene or by hydrolyzing coupling dimers of dimethyl phthalate.
-
公开(公告)号：DE2932589A1
公开(公告)日：1980-02-28
申请号：DE2932589
申请日：1979-08-10
Applicant: UBE INDUSTRIES
Inventor： SASAKI ICHIRO , ITATANI HIROSHI , KASHIMA MIKITO , YOSHIMOTO HATAAKI , YAMAMOTO SHUJI , SASAKI YOSHIKAZU
Abstract: An aromatic polyimide resin composition useful for producing a film or sheet, comprises 2% by weight or more of an imide polymer having at least 90 molar % of a recurring unit of the formula (I): (I) wherein R' is a divalent aromatic radical, and dissolved in an organic polar solvent consisting essentially of one or more halogenated phenol compounds of the formulae (II) or (III): (II) and (III) wherein R2 is a hydrogen atom of a C1-3 alkyl radical and is a halogen atom, the halogenated phenol compound having a melting point of 100 DEG C. or less and a boiling point of 300 DEG C. or less.
-
公开(公告)号：DE2837726B1
公开(公告)日：1979-12-06
申请号：DE2837726
申请日：1978-08-30
Applicant: UBE INDUSTRIES
Inventor： SASAKI ICHIRO , ITATANI HIROSHI , KASHIMA MIKITO
Abstract: Disclosed is an epoxy resin composition containing, as an essential curing component, 2,3,3',4'-biphenyltetracarboxylic dianhydride which is highly compatible with epoxy resins at a relatively low temperature and effective for producing cured epoxy resins having an excellent thermal resistance.
-
公开(公告)号：DE60115983T2
公开(公告)日：2006-07-13
申请号：DE60115983
申请日：2001-04-23
Applicant: UBE INDUSTRIES
Inventor： KASHIMA MIKITO , NODA YUMIKI , HOSHINO HARUTOSHI , MACHIDA TOSHIKAZU , ICHIHASHI HIDEKI , ADACHI FUMIO , KANEKO YUKIO
IPC: C08G18/42 , C09J175/06
Abstract: A crystalline polyesterpolyol having a number average molecular weight of 1,500 to 15,000 and obtainable from a polybasic carboxylic acid component and an aliphatic hydrocarbon diol component comprising 1,10-decanediol and/or 1,12-dodecanediol, and a hot-melt adhesive comprising a reaction product of a polyisocyanate and a polyesterpolyol, which contains a crystalline polyesterpolyol having a number average molecular weight of 1,500 to 15,000 and obtainable from a polybasic carboxylic acid component and an aliphatic hydrocarbon diol component comprising 1,10-decanediol and/or 1,12-dodecanediol are provided.
-
Patent Agency Ranking
公开(公告)号：ES2254282T3
公开(公告)日：2006-06-16
申请号：ES01109875
申请日：2001-04-23
Applicant: UBE INDUSTRIES
Inventor： KASHIMA MIKITO , NODA YUMIKI , HOSHINO HARUTOSHI , MACHIDA TOSHIKAZU , ICHIHASHI HIDEKI , ADACHI FUMIO
IPC: C08G18/42 , C09J175/06
Abstract: Una mezcla poliol poliéster comprendiendo un poliol poliéster cristalino que tiene un peso molecular promedio en número de 1.500 a 15.000, y obtenible a partir de un componente ácido carboxílico polibásico y un componente diol hidrocarburo alifático constando de 1, 10- decanodiol y/o 1, 12-dodecanodiol, en donde el poliol poliéster tiene una cristalinidad del 50%, o más, en la medición de la cristalinidad mediante el método por difracción de rayos X (método Ruland) del poliol poliéster solidificado a partir del estado fundido bajo enfriamiento con aire a una velocidad de 10ºC/minuto, y otro poliol poliéster, en donde el poliol poliéster cristalino está contenido en la cantidad del 0¿1% en peso, o más, del poliol poliéster total.
-
公开(公告)号：DE2513779A1
公开(公告)日：1975-10-09
申请号：DE2513779
申请日：1975-03-27
Applicant: UBE INDUSTRIES
Inventor： ITATANI HIROSHI , KASHIMA MIKITO , SHIOTANI AKINORI , YOSHIMOTO HATAAKI , KATO TETUO
IPC: C07C69/017 , C07C45/00 , C07C49/587 , C07C49/675 , C07C49/697 , C07C67/00 , C07C69/92 , C07C201/00 , C07C205/45 , C07C253/00 , C07C255/56 , C07D307/91 , C07C49/46
Abstract: A process for preparing substituted dibenzofuran or fluorenone-9 by the intramolecular cyclization of substituted diphenyl ether or benzophenone in the presence of a carboxylic acid salt of palladium and/or palladium organic complex.
-
公开(公告)号：DE60115983D1
公开(公告)日：2006-01-26
申请号：DE60115983
申请日：2001-04-23
Applicant: UBE INDUSTRIES
Inventor： KASHIMA MIKITO , NODA YUMIKI , HOSHINO HARUTOSHI , MACHIDA TOSHIKAZU , ICHIHASHI HIDEKI , ADACHI FUMIO , KANEKO YUKIO
IPC: C08G18/42 , C09J175/06
Abstract: A crystalline polyesterpolyol having a number average molecular weight of 1,500 to 15,000 and obtainable from a polybasic carboxylic acid component and an aliphatic hydrocarbon diol component comprising 1,10-decanediol and/or 1,12-dodecanediol, and a hot-melt adhesive comprising a reaction product of a polyisocyanate and a polyesterpolyol, which contains a crystalline polyesterpolyol having a number average molecular weight of 1,500 to 15,000 and obtainable from a polybasic carboxylic acid component and an aliphatic hydrocarbon diol component comprising 1,10-decanediol and/or 1,12-dodecanediol are provided.
-
公开(公告)号：FR2584086A1
公开(公告)日：1987-01-02
申请号：FR8609454
申请日：1986-06-30
Applicant: UBE INDUSTRIES
Inventor： ITATANI HIROSHI , KASHIMA MIKITO , AIKAWA MASAMI
Abstract: A liquid thermal accumulator composition comprising a dicarboxylic acid anhydride, an alcohol and a monoester of the dicarboxylic acid and the alcohol. A process for accumulation of thermal energy utilizing said composition is also disclosed.
-
公开(公告)号：DE3266416D1
公开(公告)日：1985-10-24
申请号：DE3266416
申请日：1982-10-15
Applicant: UBE INDUSTRIES
Inventor： ITATANI HIROSHI , KASHIMA MIKITO , SUEHIRO TSUTOMU
Abstract: Disclosed is an improved process for preparing diesters of malonic acid by subjecting ketene, carbon monoxide and an ester of nitrous acid to a liquid phase reaction in an organic solvent, in which the reaction is carried out in the presence of a catalyst of a platinum group metal complex represented by the formula: L2MX2 wherein, L represents a ligand selected from the group consisting of triorganophosphines, triorganophosphite and triorganoarsines; M represents a platinum group metal; and X represents a halogen or an acetic acid ion.
-
-
-
-
-
-
-
-
-
Search Results
87
records
(took 0.049 seconds)
