An extruded film article such as a bag comprises a blend of a thermoplastic polymer such as ethylene vinyl acetate and an olefinic oxide polymer such as poly (ethylene oxide), with a modifier such as liquid smoke absorbed in the blend. The modifier is transferable from the film to a receiving surface such as a food body in fluid transfer relationship with the film.
A tubular cellulosic casing comprising cellulose or a cellulose derivative which has incorporated therewith a polyethylene oxide composition having a molecular weight of at least 70,000 and a method of manufacturing the same.
Heat-shrinkable cap comprising a heat-shrinkable tube sealed at one end by heat recovering that end of tube over a dimensionally stable, solid plug. The tube and plug are mutually weldable under heat, or are bonded together, thereby providing an air and water-tight seal at the sealed end. The open end of the cap may be internally coated with adhesive to provide an air and water-tight seal over an object such as a cable-end when the cap is heat recovered over said object.
Articles and surfaces are disclosed having antimicrobial activity. Also disclosed are methods for treating surfaces and articles to confer antimicrobial activity. Such articles and surfaces are particularly adapted for food contact use, such as food preparation or packaging. Antimicrobial activity is conferred by applying molecules of a polypeptide bacteriocin, e.g., nisin, such as by contacting the surface or article with a liquid solution of a bacteriocin or bacteriocin mixture. The bacteriocin molecules are attached to the surface or article via any means enabling the molecules to subsequently detach and lethally interact with susceptible bacteria deposited on the treated surface or article. Such detached bacteriocin molecules can also kill susceptible bacteria present on foods or other substances that contact the surface or article. Attached bacteriocins are stable to drying, water rinsing, and freezing, even for long periods.
A moisture-absorbing polymeric material is disclosed which consists of a combination of a thermoplastic material with an absorbing agent. The thermoplastic material is chosen such that when the absorbing agent is added to the thermoplastic material in the molten state and subsequently formed into a product, the absorbing agent tends to migrate towards the surface of the moisture-absorbing polymeric material to form a migration zone, wherein the absorbing agent is more highly concentrated in the surface of the polymer material than towards the interior.
