Abstract: Microporous polymer films and methods of making same are disclosed. The microporous polymer film comprises: one or more polypropylene copolymer, said polypropylene copolymer comprising one or more polypropylene homopolymer chain segments and one or more ethylene-containing copolymer chain segments; wherein the microporous polymer film comprises: (i) polypropylene homopolymer chain segments in total amount of from 50-82 wt. %, based on the weight of the microporous polymer film; (ii) one or more ethylene-containing copolymer chain segments in total amount of from 18-50 wt. %, based on the weight of the microporous polymer film, wherein at least a portion of the ethylene-containing copolymer chain segments comprises polymerized units of ethylene in an amount of at least 45 wt. %, based on the weight of the ethylene-containing copolymer chain segments.

Abstract: Microporous polymer films and methods of making same are disclosed. The microporous polymer film comprises: one or more polypropylene copolymer, said polypropylene copolymer comprising one or more polypropylene homopolymer chain segments and one or more ethylene-containing copolymer chain segments; wherein the microporous polymer film comprises: (i) polypropylene homopolymer chain segments in total amount of from 50-82 wt. %, based on the weight of the microporous polymer film; (ii) one or more ethylene-containing copolymer chain segments in total amount of from 18-50 wt. %, based on the weight of the microporous polymer film, wherein at least a portion of the ethylene-containing copolymer chain segments comprises polymerized units of ethylene in an amount of at least 45 wt. %, based on the weight of the ethylene-containing copolymer chain segments.

Abstract: An aqueous fluid irrigation system for protecting a region of a subsurface irrigation tube from root or microbial mass intrusion, comprising a porous cover covering a subsurface irrigation tube, wherein the cover essentially covers the region of the tube surface, and wherein the cover comprises a non-plexifilamentary material characterized by a peak void volume of less than 35 microns, and any planar region of the non-plexifilamentary material of an area of 500 square microns or less contains a contiguous polymer structure that remains contiguous when exposed to aqueous fluid.

Abstract: A method for subsurface irrigation having the steps of; providing one or more hydrophobic porous uncoated tubes having a hydro head (HH), locating the tubes with at least a portion of their length within the rhizosphere of plants to be irrigated, and passing an aqueous irrigation liquid into the tubes during the growth phase of the plants to be irrigated at an applied pressure at or below HH. The tubes may be located in the proximity of seeds which become the plants to be irrigated following their germination. In this embodiment, aqueous irrigation fluid is passed into the tubes during a germination phase of the seeds at an applied pressure that is at least 10% higher than the applied pressure during the growth phase of the plants.

Abstract: The present invention concerns a breathable product for protective mass transportation and cold chain applications, in particular a reflective sheet for covering temperature sensitive products the reflective sheet having at least a first layer made of a highly reflective moisture vapor permeable substrate having an outer side and an inner side, wherein said inner side comprises in addition at least a metal layer deposited by a PVD process to provide a thermal insulation through high reflection low convection while providing controlled moisture vapor permeability.

Abstract: The present invention concerns a breathable product for protective mass transportation and cold chain applications, in particular a reflective sheet for covering temperature sensitive products the reflective sheet having at least a first layer made of a highly reflective moisture vapor permeable substrate having an outer side and an inner side, wherein said inner side comprises in addition at least a metal layer deposited by a PVD process to provide a thermal insulation through high reflection low convection while providing controlled moisture vapor permeability.

Abstract: The present invention concerns a breathable product for protective mass transportation and cold chain applications, in particular a reflective sheet for covering temperature sensitive products the reflective sheet having at least a first layer made of a highly reflective moisture vapor permeable substrate having an outer side and an inner side, wherein said inner side comprises in addition at least a metal layer deposited by a PVD process to provide a thermal insulation through high reflection low convection while providing controlled moisture vapor permeability.

Abstract: A moisture vapor permeable metalized composite sheet is formed by coating a moisture vapor permeable sheet with at least one metal layer and at least one outer organic coating layer. The moisture vapor permeability of the composite sheet is at least about 80% of the moisture vapor permeability of the starting sheet. The composite sheet provides a barrier to air and liquid water infiltration while having high moisture vapor permeability and good thermal barrier properties. The composite sheet material is suitable for use as a building construction wrap such as roof lining and house wrap.

Abstract: A moisture vapor permeable metalized composite sheet is formed by coating a moisture vapor permeable sheet with at least one metal layer and at least one outer organic coating layer. The moisture vapor permeability of the composite sheet is at least about 80% of the moisture vapor permeability of the starting sheet. The composite sheet provides a barrier to air and liquid water infiltration while having high moisture vapor permeability and good thermal barrier properties. The composite sheet material is suitable for use as a building construction wrap such as roof lining and house wrap.

Abstract: Porous fibrous sheets are provided that are useful in end uses requiring microbial barrier properties such as medical packaging and medical gowns and drapes. The porous fibrous sheets may contain nanofibers and wood pulp.

Abstract: A durable metallized moisture vapor permeable sheet is formed by coating a moisture vapor permeable sheet with at least one metal coating comprising a layer of a corrosion resistant metal or a plurality of metal layers having differing compositions. The metallized moisture vapor permeable sheet material is suitable for use as a building construction wrap such as roof lining and house wrap, and as EMF radiation shielding material.

Abstract: A process for forming a low emissivity, moisture vapor permeable metallized composite sheet by coating a moisture vapor permeable sheet with at least one metal and exposing the freshly deposited metal to an oxidizing plasma thereby forming a protective synthetic metal oxide over the metal. The composite sheet material is suitable for use as a building construction barrier layer such as roof lining and house wrap.

Abstract: The present invention relates to a process for making electrostatic charge dissipative material comprising the following steps: (a) optionally pretreating a substrate in a plasma field; (b) flash evaporating at least one monomer and at least one hygroscopic additive into a vacuum chamber to produce a vapor; (c) condensing the vapor on the substrate to produce a film of the monomer and the hygroscopic additive coating on the substrate; and (d) curing the monomer of the film to produce a polymeric layer containing hygroscopic additive on the substrate; wherein the condensing step is carried out under vapor-density and residence-time conditions that limit the polymeric layer to a maximum thickness of about 3.0 ?m. The electrostatic charge dissipative material can be used to protect electrostatic sensitive electronic components.

Abstract: A moisture vapor permeable metalized composite sheet is formed by coating a moisture vapor permeable sheet with at least one metal layer and at least one outer organic coating layer. The moisture vapor permeability of the composite sheet is at least about 80% of the moisture vapor permeability of the starting sheet. The composite sheet provides a barrier to air and liquid water infiltration while having high moisture vapor permeability and good thermal barrier properties. The composite sheet material is suitable for use as a building construction wrap such as roof lining and house wrap.

Abstract: A durable metallized moisture vapor permeable sheet is formed by coating a moisture vapor permeable sheet with at least one metal coating comprising a layer of a corrosion resistant metal or a plurality of metal layers having differing compositions. The metallized moisture vapor permeable sheet material is suitable for use as a building construction wrap such as roof lining and house wrap, and as EMF radiation shielding material.

Abstract: Wood pulp papers are provided that are useful in end uses requiring microbial barrier properties such as medical packaging, air filters, liquid filters, and other uses and the papers have significantly improved bacterial barrier properties in contrast to wood pulp papers known in the art as measured by Log Reduction Values determined by ASTM F-1608.

Abstract: A nonwoven web having a top surface and a bottom surface, the web containing polymeric fibers of a first polymer coated with at least a second polymer different from said first polymer, and wherein the second polymer coating thickness is a gradient throughout the thickness of the web.

Abstract: A self-adhesive laminate with an emissivity of no greater than about 0.40 made of a sheet layer having first and second outer surfaces, the sheet layer comprising at least one layer selected from the group consisting of nonwoven fabrics, woven fabrics, nonwoven fabric-film laminates, woven fabric-film laminates, films, paper-film laminates, and composites thereof with at least one multi-layer coating on said first outer surface of the sheet layer, said multi-layer coating comprising a first metal coating layer adjacent the first outer surface of the sheet layer; and an outer organic coating layer of a composition containing a material selected from the group consisting of organic polymers, organic oligomers, compounds, and combinations thereof, deposited on the metal layer; and with an adhesive layer coating the second outer surface of the sheet layer and wherein the sheet layer coated with said multilayer coating is creped.

Abstract: Articles are provided which mask the appearance of stains. The articles utilize a metalized substrate formed from a substrate and a discontinuous metal layer deposited thereon, the metalized substrate having a gloss of at least about 2 gloss units when measured at an angle of illumination of 20°.

Abstract: A coated porous sheet material comprising a gas permeable sheet material selected from the group consisting of flash spun plexifilamentary nonwoven sheet, spunbonded-film-spunbonded composite sheet, spun-laced polyester/wood pulp composite sheet and paper and a polymeric coating on at least one side thereof, wherein the permeability of the coated sheet material is substantially equivalent to the permeability of an equivalent sheet material without the coating. The coated porous sheet material is suitable for use in heat sealable packages.