A nonwoven, porous fabric produced from a water modifiable polyolefin-containing film. In a preferred embodiment, the nonwoven fabric includes groups of elongated polyolefin fibers substantially oriented along a longitudinal axis. The fibers have branches extending from themselves and are bonded therebetween....http://www.google.sh/patents/US6090472?utm_source=gb-gplus-sharePatent US6090472 - Nonwoven, porous fabric produced from polymer composite materials