Abstract: A sealable article container which comprises a flat material having a peripheral edge portion around an outer edge of the material, and binding means, the binding means being located in the peripheral edge portion. The flat material is made of a plastic film, paper sheet, cloth, netting, or mesh. The binding means is selected from the group consisting of: double-backed tape, tongue and groove strips, hook and loop sealing strips, adhesives, or the like. In operation the flat material is placed upon a surface with the binding means facing up, and an article or multiple articles being placed upon the flat material and within the binding means, and thereafter the flat material being folded upon itself so that binding means seals with binding means to form a container for the article or multiple articles.

Abstract: Disclosed are a process for forming an open-celled microporous membrane (e.g., in film or fiber form) and a novel microporous membrane formed thereby. The process generally includes sequential cold and hot stretching operations, whereby the cold stretching operation is preferably accomplished in a plurality of discrete cold stretching steps. In this regard, the total cold stretch extension is of greater than about 30 percent, and advantageously greater than about 40 percent based upon the initial unstretched length of the nonporous precursor, with this total cold stretch ratio being distributed among a plurality of discrete cold stretching steps. The novel membranes of this invention are characterized by decreased pore size and increased pore densities. For example, the membranes of this invention will have an average pore radius as determined by mercury porosimetry of less than about 0.040 micron. The membranes of this invention, moreover, exhibit a distinctive "bluish" color hue (i.e., a Macbeth Coloreye.