| 摘要 |
1509252 Hydrogel solids INTERNATIONAL PAPER CO 13 June 1974 [23 July 1974 14 April 1975] 25364/75 Heading A5B [Also in Division C3] Hydrogel solids which absorb large amounts of fluid and are haemostatic when applied to bleeding tissue comprise diester crosslinked amylose, dextran or pullulan succinate or glutarate, the hydrogel being water insoluble and the neutral pH sodium salt of which has a saline retention of isotonic saline solution sufficient to increase the weight of the hydrogel to 5-90 times it weight. The hydrogel may be in the form of a reticulated porous sponge. [see Division-C3] |
