MULTILAYERED BIOCIDAL FILM COMPOSITIONS

• Main Authors: WELLINGHOFF, STEPHEN T, KAMPA, JOEL J
• Format: Patent
• Language: English; French
• Published: 29.11.2005
• Edition: 6
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; CHEMISTRY; COMPOUNDS THEREOF; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; FISHING; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; FORESTRY; HANDLING THIN OR FILAMENTARY MATERIAL; HUMAN NECESSITIES; HUNTING; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT,VEGETABLES, EDIBLE SEEDS; STORING; THE PRESERVED, RIPENED, OR CANNED PRODUCTS; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES; TRANSPORTING; TRAPPING

A multilayered composite for providing sustained release of chlorine dioxide includes a hydrophobic layer containing an acid releasing agent, and a hydrophilic layer containing chlorite anions. The hydrophilic a nd hydrophobic layers are adjacent and substantially free of water, and the hydrophilic layer is capable of releasing chlorine dioxide up on hydrolysis of the acid releasing agent.