Water-soluble substrate with resistance to dissolution prior...

C - Chemistry – Metallurgy – 08 – J

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C08J 7/04 (2006.01) B65D 65/46 (2006.01)

Patent

CA 2668492

A water-soluble substrate, and more particularly a water-soluble substrate that is resistant to contact with small amounts of water, and methods of making the same are disclosed. A coating which is less water-soluble than the water-soluble substrate and in the form of particles, is applied to and substantially covers at least one surface of the water-soluble substrate. The weight ratio of coating to water-soluble substrate is higher than 0.8. Articles, such as pouches, made from the water-soluble substrate, are also disclosed herein.

La présente invention concerne un substrat hydrosoluble, et plus particulièrement un substrat hydrosoluble qui est résistant au contact avec de petites quantités d'eau, et des procédés de fabrication de celui-ci. Un revêtement qui est moins hydrosoluble que le substrat hydrosoluble et qui est sous forme de particules, est appliqué sur au moins une surface du substrat hydrosoluble et couvre essentiellement ladite surface. Le rapport en poids entre le revêtement et le substrat hydrosoluble est supérieur à 0,8. La présente invention concerne également des articles, tels que des poches, fabriqués à partir de ce substrat hydrosoluble.

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