Abstract: A composite sheet material suitable for use as a wrapping material having a layer of non-woven material formed from thermoplastic fibers or spunbonded fabric and a single or a composite water impermeable layer, the layers being laminated together. The composite impermeable layer may include a polymeric woven scrim for increasing the tensile strength and tear strength of the sheet.

Abstract: A multi-layered packaging material for metal with improved anti-corrosion properties is made from polyolefins, preferably polyethylene. The material has a high tensile strength middle layer comprising a woven scrim, preferably made of high-density polyethylene tapes with decitex from 500 to 2500 grams per 10,000 meters. The woven layer is laminated on the outer side to a layer of low-density polyethylene. The outer layer has a very low moisture and vapor transmission rate and is almost impermeable. It protects the wrapped good from damaging elements in the atmosphere, including vapors and moisture. The middle layer is laminated on the inside to a polymer sheet, preferably low-density polyethylene, impregnated with a blend of corrosion inhibitors. The corrosion inhibitor blend comprises both volatile and contact corrosion inhibitors.

Abstract: A multi-layer woven scrim, having two or more layers made of thermoplastic tapes, has its layers attached together by means of layer-connecting tapes interwoven with mutually perpendicular tapes of adjacent layers. The points of attachment may be at spaced intervals and in the machine or cross-machine directions. The scrim is flexible, dimensionally stable and has high tensile and tear strength. It can be coated and used as an industrial fabric.