| 摘要 |
<p>An open cell, foam article includes a first section produced from a first reaction mixture including: a first polyol formulation, the first polyol formulation including a polyether polyol and a copolymer polyol; and an isocyanate mixture having a difunctional isocyanate, a polyfunctional isocyanate, or a combination thereof. The foam article also includes a second section continuous with the first section, wherein the second section is produced from a second reaction mixture including a second polyol formulation, the second polyol formulation having the polyether polyol, the copolymer polyol, and a polyol-based crosslinker having a higher functionality than the polyether polyol and the copolymer polyol. The second polyol formulation has a higher concentration of the polyol-based crosslinker than the first polyol formulation.</p> |
