| 摘要 |
PCT No. PCT/CH96/00232 Sec. 371 Date Sep. 24, 1998 Sec. 102(e) Date Sep. 24, 1998 PCT Filed Jun. 18, 1996 PCT Pub. No. WO97/07749 PCT Pub. Date Mar. 6, 1997A toothpick made of biodegradable material composed of a thermoplastic, water-soluble and foodstuff-grade base material. The base material substantially consists of starch, glucose, gelatine, cellulose, collagen or their derivatives. Various active substances such as fragrances, dyes or pharmaceutical compositions may be added to the base material. The active substances may however also be added to the finished product, i.e. the toothpick, by coating the toothpick therewith. |
