| 摘要 |
<p>This invention provides a method for producing porous elastomeric sheet material, wherein ungelled elastomer liquid material is admixed with hollow spherical filler particles and then spread to form a sheet, which is then gelled and dried. The gelled and dried sheet of filled elastomer is subjected to rigorous biaxial stretching, wherein the elastomeric material surrounding at least some of the particles is stretched and ultimately broken by the rigorous stretching, to form a porous sheet material.</p> |
