Abstract: Chitosan films and laminates made from the films are provided. The films and laminates can be used to make a variety of finished articles that can be used to provide protection from hazardous chemical and biological agents.

Abstract: Processes for fabricating selectively permeable laminates are provided. In various embodiments, the laminates are useful for fabrication as a protective article and are substantially impermeable to hazardous chemical and biological agents, but sufficiently permeable to water vapor that, if worn as protective apparel, it is both protective and comfortable to wear.

Abstract: A process of treating a woven fabric by applying to the fabric a viscous polymer in a 5 to 40 wt % solution with a solvent, wherein the polymer has a Tg in the range of about minus 40 to about 0° C. and a zero shear melt viscosity of about 2×106 to about 1013 poise when measured at 20° C. and then evaporating the solvent such that the polymer only partially penetrates the fabric and penetrates to in and between fiber bundles before the polymer solidifies.

Abstract: A penetration resistant article with an area density less than 1.5 lb/ft2 made of a plurality of fibrous fabric layers that have applied thereto about 1 to 8 percent by weight of a polymer having a glass transition temperature in the range of minus 40 to about 0° C. and a zero shear melt viscosity 2×106 to about 1013 poise at 20° C.

Abstract: This invention relates to a laminate useful in protective apparel and structures, and processes for making said laminate, the laminate comprising i) a polymer barrier layer comprising a polyurethane network having a polyalkylamine incorporated therein; and ii) a support substrate; wherein the laminate, after contact with boiling water for 5 minutes, has less than a 20 percent loss in weight of the polyalkylamine.

Abstract: This invention relates to a polymer composition useful as a chemical barrier, and films, laminates, and articles comprising the polymer composition and methods for making the polymer composition; the polymer composition comprising: a polyurethane network having a polyalkylamine incorporated therein, wherein the polymer composition, after contact with boiling water for 5 minutes, has less than a 50 percent loss in weight of the polyalkylamine.

Abstract: This invention relates to a barrier film useful in protective apparel and structures, and a process for making said film; the film comprising a polyurethane network having a polyalkylamine incorporated therein, wherein the film, after contact with boiling water for 5 minutes, has less than a 50 percent loss in weight of the polyalkylamine.

Abstract: A fiber structure made of fiber and about 1 to about 15 wt % of a polymer that has a Tg in the range of ?60 to about 10° C.

Abstract: A fibrous structure made from a fiber and about 1 to about 15 wt % of a high viscosity polymer that has a glass transition temperature of about minus 40 to about 0° C. and useful for making bullet resistant articles.

Abstract: Polytrimethylene ether ester elastomer flexible films are provided. The films have desirable physical properties, including tenacity, that enable their use in making robust packaging from relatively thin films.

Abstract: The present invention relates to stretchable, synthetic, polymeric fibers, tapes and films made from at least two types of thermoplastic elastomeric polymers. More specifically, this invention relates to stretchable synthetic, polymeric fibers, tapes comprising a segmented thermoplastic elastomeric polymer, and an olefinic, thermoplastic elastomeric polymer. This invention also relates to articles formed from such fibers, including yarns, garments, and other textile or related structures comprising such a composite filament or a film.