| 摘要 |
<p>A zinc chloride dry cell containing a separator comprising from about 5 to 30 per cent by weight of cross-linked polyacrylamide, and from about 70 to 95 per cent by weight of a mixture of talc and starch in a ratio of about 0.2 to 6.0 parts by weight of talc to 1.0 part by weight of starch.</p> |
