NOVELTY – The low-solubility calcium alginate biodegradable active plastics films production comprises incorporation of e.g. chemical preservatives, vitamins and aromas, for slow release from the packaging of foodstuffs. Also claimed is the product of the process. CLAIMED PROCESS – The process remains stable despite changes in temperature and humidity, and also slowly releases pharmaceuticals at non-toxic levels. USE – In polymer processing.
A92 (Packaging and containers – including ropes and nets.); B07 (General – tablets, dispensers, catheters (excluding drainage and angioplasty), encapsulation etc, but not systems for administration of blood or saline or IV feeding etc.)