| abstract |
SOLUTION: Solvent-based adhesive compositions are disclosed herein. In some embodiments, the solvent-based adhesive composition comprises (A) an isocyanate component containing an isocyanate curing agent and (B) a hydroxyl component containing a polyester polyol, a polyether polyol, and a phosphate ester compound. The isocyanate curing agent of the isocyanate component (A) crosslinks the components of the hydroxyl component. In some embodiments, the phosphate ester compound has structure (I) and [Chemical 1] In the formula, R1 is any organic group. Methods for preparing solvent-based adhesive compositions are also disclosed. The method comprises providing an isocyanate component (A) containing an isocyanate curing agent, providing a polyol blend containing a polyester polyol and a polyether polyol, and providing a hydroxyl component (B) containing a phosphate ester compound. The hydroxyl component (B) is cured with the isocyanate component (A) at a mixing ratio of 100: 8 to 100: 15 ((A): (B), weight ratio), thereby forming a solvent-based adhesive composition. Including to do. [Selection diagram] None |