RELEASE LAYER PRODUCTION METHOD

• Main Author: EBARA Kazuya
• Format: Patent
• Language: English; French; Japanese
• Published: 14.06.2018
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SEMICONDUCTOR DEVICES; SPRAYING OR ATOMISING IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING

A release layer production method is provided which involves a step for coating a substrate with a release layer forming composition and firing at a maximum temperature of no less than 400°C, wherein the release layer forming composition contains an organic solvent, and a polyamic acid having both ends derived from a tetracarboxylic acid, with either one or both of said ends sealed with 2-aminophenol. L'invention fournit un procédé de fabrication de couche de pelage qui inclut une étape au cours de laquelle une composition pour formation de couche de pelage contenant un solvant organique, et un acide polyamique à deux terminaisons dérivées d'acide tétracarboxylique, l'une ou les deux terminaisons étant scellées par un 2-amino-phénol, est appliquée sur un corps de base, et cuite à une température maximale de 400°C ou plus. テトラカルボン酸由来の両末端を有し、この両末端のいずれか一方又は両方が２－アミノフェノールで封止されているポリアミック酸と、有機溶媒とを含む剥離層形成用組成物を基体上に塗布し、最高温度４００℃以上で焼成する工程を含む剥離層の製造方法を提供する。