| 摘要 |
<p>Catamenial absorption arrangement or tampons consist of an envelope permeable to liquids, a withdrawing arrangement attached to the envelope, and an additive, in the envelope, which is a polyacrylamide contg. linear chains of formula: and transverse links of formula: (where R is H or lower alkyl, and Y is NH2 or MO, in M is alkali metal or NH4). The arrangement may contain a sponge as well as the additive, which has very good absorption props. The tampon expands when in contact with menstrual flow.</p> |
