| 摘要 |
<p>A relatively homogeneous, three-dimensional, microporous cellular polymer structure comprising a plurality of substantially spherical cells having an average diameter from about 0.5 to about 100 microns, distributed substantially uniformly throughout the structure, adjacent cells being interconnected by pores smaller in diameter than said microcells. The ratio of the average cell diameter to the average pore diameter is from about 2:1 to about 200:1. The polymer is a synthetic thermoplastic polymer selected from the group consisting of olefinic polymers, condensation polymers, oxipolymers and blends thereof. The cells and pores are at least partially filled with a liquid selected from the group consisting of lubricants, surfactants, slip agents, moth repellants, pesticides, plasticizers, medicinals, fuel additives, polishing agents, insect repellants, animal repellants, fragrances, flame retardants, antioxidants, odor masking agent, antifogging agents and perfumes.</p> |
