| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink pack for particularly sealing ink for organic EL element formation and which is easy to mold and is superior in corrosion resistance. SOLUTION: A face in contact with the ink inside the ink pack is composed of a low crystallinity polyester in which one or more kinds of dicarboxylic acids and one or more kinds of diols are copolymerized with each other, particularly, a low crystallinity polyester in which a first compound that predominantly includes terephthalic acid in one or more kinds of dicarboxylic acids, and a second compound that predominantly includes ethylene glycol in one or more kinds of diols are copolymerized with each other. COPYRIGHT: (C)2006,JPO&NCIPI |
