| 摘要 |
<p>The invention relates to a rodenticidal block bait consisting essentially of brittle-hard polyvinyl acetate, or of a brittle-hard copolymer of vinyl acetate and acrylic acid ester, methacrylic acid ester and/or acrylonitrile, and a foodstuff treated with a rodenticidal poison and dispersed in the polymer carrier. The polymer component (polyvinyl acetate or vinyl acetate copolymer) serves simultaneously as a taste-tempting, hardening and water-resistant constituent in the bait. The invention relates also to a process for producing this block bait from aqueous polymer- dispersions.</p> |
