Abstract: The present application is directed to articles useful as graphic films. Specifically, the present application is directed to a multilayer film, at least one layer of the multilayer film comprising a polymer blend comprising a thermoplastic polyurethane and a cellulose ester. In some embodiments, a second layer of the multilayer film comprises thermoplastic polyurethane and the cellulose ester. In some embodiments, a second layer of the multilayer film comprises a material different from the polymer blend.

Abstract: The present application is directed to articles useful as graphic films. Specifically, the present application is directed to an article comprising a film layer, the film layer comprising a polymer blend comprising a thermoplastic polyurethane and a cellulose ester, and an ink layer adjacent to at least one surface of the film. In some embodiments, the cellulose ester is a cellulose acetate butyrate. In some embodiments, the cellulose ester is a cellulose acetate propionate.

Abstract: A method for making an anti-microbial article is described, the method comprising: providing a substrate; forming a solution comprising a chelating polymer and a metal ion; depositing the solution on the substrate; drying the substrate to form a coated substrate; and adding a potentiator to the coated substrate to form the antimicrobial article. Forming of the solution comprises (A) selecting a chelating polymer from the group consisting of polyglucosamines, ethylene acrylic acid copolymers, polycarboxylic acids, and polyamines, (B) dissolving the chelating polymer in acid to form an acidic solution, (C) preparing an aqueous solution of the metal ion, preferably by selecting a salt of the metal ion and dissolving the salt in water, and (D) combining the aqueous solution of the metal ion and the acidic solution.

Abstract: Fine particles of semi-crystalline ketone-containing aromatic polymers (PEEK, PEKK, etc.) are produced by controlling the rate and conditions of hydrolysis of an amorphous polyarylketimine intermediate. The choice of acid and its concentrations affects the rate of ketimine hydrolysis and subsequent particle formation. In addition, zero or reduced amounts of agitation during hydrolysis has been found to promote the formation of smaller (submicron) sized particles which are spherical in shape, while greater amounts of agitation or shear stress applied during hydrolysis results in nonspherical, larger particles. Carbon fiber reinforced composites were made from aqueous suspensions of these particles that were dispersed or stabilized by a water soluble polymer.