摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.