Insulation materials; barrier articles, namely, permeation barriers; polymeric membranes sold in sheet form, rods, blocks and other stock shapes, for use by third party manufactures; Polymer films for use in manufacture; foils of synthetic plastics, as semi-finished products; semi-worked synthetic plastic substances as semi-finished products in form of pellets, rods, foils, foams, fibers, films and sheets; all of the above in relation to hydrogen production and conversion to electricity and h...