| 摘要 |
PCT No. PCT/EP94/00669 Sec. 371 Date Dec. 20, 1995 Sec. 102(e) Date Dec. 20, 1995 PCT Filed Mar. 7, 1994 PCT Pub. No. WO94/21206 PCT Pub. Date Sep. 29, 1994A medical patch material has a support coated with an even and porous spread of pressure sensitive hot-melt adhesive coating, formed by means of gravure printing, has a sufficient porosity and a resulting vapor permeability to skin moisture on the one hand, as well as an absolute bacteria-impermeability and reliable adherence of the patch material on the other hand. This is achieved by the fact that the pressure sensitive hot-melt adhesive spread: a) forms coherent webs in the lengthwise and transverse direction, which include island-shaped adhesive-free areas; b) that the proportion of the adhesive-free areas amounts to between 30 and 60%, preferably between 40 and 57% of the total surface, and c) that the coat weight of the adhesive amounts to between 30 and 160 g/m2, preferably between 40 and 120 g/m2. |
