| 摘要 |
<p>A blend comprising a paraffin wax emulsion and a polymer emulsion, wherein the polymer contains polymerized units of one or more C<SUB>1-12 </SUB>ester of acrylic or methacrylic acid and a vinyl ester of a C<SUB>8-13 </SUB>neo-acid. When the blend is applied as a coating to a substrate, such as a nonwoven web, a nonwoven absorbent pad, a nonwoven textile, or a textile fabric, and dried, it has a hydrostatic head barrier sufficient to prevent passage of aqueous fluids but allow passage of water vapor through it. A multi-layer material comprising at least one layer of a nonwoven web, an absorbent pad, or a textile, and at least one layer of the above described blend.</p> |
