Bottle excellent in recyclability and method for recycling...

B - Operations – Transporting – 32 – B

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B32B 27/08 (2006.01) B29B 17/04 (2006.01) B65D 1/02 (2006.01)

Patent

CA 2486312

A bottle excellent in recyclability which has a laminate structure comprising a main resin material layer and at least one layer of a glycolic acid based polymer; and a method for recycling the bottle which comprises crushing the bottle, washing the resulting crushed product with an alkaline water, water or an acidic water, to thereby remove the layer of a glycolic acid based polymer, and recovering the main resin material. The bottle combines good gas barrier property due to the glycolic acid based polymer and excellent recyclability, and the method for recycling can be practiced with good efficiency.

L'invention concerne une bouteille présentant une excellente aptitude au recyclage, qui présente une structure stratifiée comprenant une couche de matière de résine principale et au moins une couche d'un polymère à base d'acide glycolique ; et un procédé de recyclage de cette bouteille, qui comporte les étapes consistant à écraser la bouteille, à laver le produit écrasé obtenu à l'aide d'eau alcaline, d'eau ou d'eau acide afin d'éliminer la couche de polymère à base d'acide glycolique, et à récupérer la matière de résine principale. La bouteille possède, grâce au polymère à base d'acide glycolique, de bonnes propriétés de barrière de gaz qui se combinent à une excellente aptitude au recyclage, et le procédé de recyclage peut être appliqué avec un bon rendement.

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