| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyamide-imide resin composition for a lubricating coating material, which is superior in the solubility in a solvent containing gamma-butyrolactone that is a non-amide-based solvent while retaining excellent heat resistance (that is to say, high glass transition temperature) and mechanical strength (that is to say, high elastic modulus) of the polyamide-imide resin, and can keep a dissolution state for a long time even in a state that the solvent is liable to absorb moisture.SOLUTION: The polyamide-imide resin composition for a lubricating coating material comprises a polyamide-imide resin containing 50 mol% or more of a repeating unit represented by formula [I] mentioned below, when the total amount of repeating units in the structure of the polyamide-imide resin is 100 mol%, and comprises, as a solvent, gamma-butyrolactone. |
