C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 3/28 (2006.01) B65D 1/00 (2006.01) B65D 65/02 (2006.01) C08G 69/26 (2006.01) C08G 69/46 (2006.01) C08L 77/06 (2006.01)
Patent
CA 2751958
A storage method of storing a package with its contents under irradiation of light. At least part of the package is made of polyamide (A) which is obtained by polycondensation of a diamine component comprising 70 mol % or more of m- xylylenediamine and a dicarboxylic acid component comprising 70 mol % or more of (.alpha.,.omega.)-linear aliphatic dicarboxylic acid having 4 to 20 carbon atoms. The oxygen transmission of the package including polyamide (A) is reduced by irradiation of light, to prevent the spoilage of the contents.
L'invention porte sur un procédé de stockage pour stocker un emballage contenant un contenu, sous irradiation de lumière. Au moins une partie d'un emballage est formée par du polyamide (A) qui est obtenu par polycondensation d'un composant de diamine contenant au moins 70 % en mole de meta-xylylènediamine, et d'un composant dicarboxylique contenant au moins 70 % en mole de a,? acide aliphatique dicarboxylique à chaîne droite ayant de 4 à 20 atomes de carbone. Lorsque la lumière est irradiée sur l'emballage comprenant le polyamide (A), la perméabilité à l'oxygène est diminuée, et la détérioration du contenu peut être supprimée.
Mitsubishi Gas Chemical Company Inc.
Smart & Biggar
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