Patent ID: 7757811
Filing Date: 2010-07-20
Classification: B32B,D01D,E04B,G10K,Y10T

Abstract:
1. A multilayer article comprising: a support layer; and a sub-micron fiber layer on the support layer, said sub-micron fiber layer comprising polymeric fibers having a median fiber diameter of less than 1 micron (μm), wherein said polymeric fibers comprise at least 75 weight percent of a polymer selected from polyolefin, polypropylene, polyethylene, polyester, polyethylene terephthalate, polybutylene terephthalate, polyamide, polyurethane, polybutene, polylactic acid, polyphenylene sulfide, polysulfone, liquid crystalline polymer, polyethylene-co-vinylacetate, polyacrylonitrile, cyclic polyolefin, or a combination thereof.