| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a copolyester resin having heat resistance to and solubility in a general-purpose solvent while holding flame retardancy, and adhesiveness to a polyester film. <P>SOLUTION: The copolyester resin includes 10-45 mol% organic phosphorus compound represented by formula (I), 10-45 mol% itaconic acid and 10-80 mol% terephthalic acid as polybasic acid components, and 50-100 mol% 1, 4-butanediol as alcohol components, and has 1-5 mass% of the content of phosphorus atoms in the resin, 10,000-60,000 of the number average molecular weight, -30 to 40°C of the glass transition temperature, and 50-180°C of the melting point. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
