POLYAMIC ACID SOLUTION COMPOSITION HAVING CARBON BLACK DISPERSED THEREIN, PROCESS FOR PRODUCTION OF SEMICONDUCTIVE POLYIMIDE RESIN BELT USING THE COMPOSITION, AND SEMICONDUCTIVE POLYIMIDE RESIN BELT

• Main Authors: NISHIURA, NAOKI, MURAKAMI, TORU, KURAOKA, TAKASHI, NAKAYAMA, TAKESHIGE, ICHINO, AKIRA
• Format: Patent
• Language: English; French; Japanese
• Published: 11.06.2009
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; CINEMATOGRAPHY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; ELECTROGRAPHY; ELECTROPHOTOGRAPHY; HOLOGRAPHY; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MAGNETOGRAPHY; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHOTOGRAPHY; PHYSICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Disclosed is a polyamic acid solution composition having carbon black dispersed therein, which has a high solid content and a high carbon black content. Also disclosed is an intermediate transfer belt produced by using the polyamic acid solution composition. Specifically disclosed is a polyamic acid solution composition having carbon black dispersed therein, which comprises a polyamic acid solution and carbon black dispersed in the polyamic acid solution homogeneously, wherein the polyamic acid solution is produced by reacting a biphenyltetracarboxylic acid dianhydride component with an aromatic diamine component in an organic polar solvent, wherein the biphenyltetracarboxylic acid dianhydride component comprises 2,3,3',4'-biphenyltetracarboxylic acid dianhydride and 3,3',4,4'-biphenyltetracarboxylic acid dianhydride, wherein the aromatic diamine component comprises 4,4'-diaminodiphenylether and p-phenylenediamine, and wherein the polyamic acid solution has a solid content of 25 wt% or more. La présente invention concerne une composition de solution d'acide polyamique à l'intérieur de laquelle est dispersé du noir de carbone, qui présente une grande teneur en matières solides et une grande teneur en noir de carbone. La présente invention concerne également une courroie de transfert intermédiaire produite en utilisant la composition de solution d'acide polyamique. La présente invention concerne spécifiquement une composition de solution d'acide polyamique à l'intérieur de laquelle est dispersé du noir de carbone, qui comprend une solution d'acide polyamique et du noir de carbone dispersé de manière homogène dans la solution d'acide polyamique, la solution d'acide polyamique étant produite par réaction d'un composant dianhydride de l'acide biphényltétracarboxylique avec un composant diamine aromatique dans un solvant organique polaire, le composant dianhydride de l'acide biphényltétracarboxylique comprenant un dianhydride de l'acide 2,3,3',4'-biphényltétracarboxylique et un dianhydride de l'acide 3,3',4,4'-biphényltétracarboxylique, le composant diamine aromatique comprenant un 4,4'-diaminodiphényléther et une p-phénylènediamine, et la solution d'acide polyamique ayant une teneur en matières solides de 25 % en poids ou plus.