Abstract: The invention concerns a method for treating a cork-based product useful for making stoppers. The invention is characterised in that it comprises the following steps: a) introducing the product in a sealed container; b) subjecting said product to the action of water vapor under pressure ranging between 2.105 and 30.105 Pa for a duration ranging from about 5 seconds to 5 minutes; c) producing an expansion to restore atmospheric pressure inside the container; d) recuperating the treated product.

Abstract: The invention relates to a monolayer or multilayer long-life packaging containing an anethole-based alcoholic or nonalcoholic beverage, characterized in that the layer in contact with the said beverage is formed from a polymer containing condensed aromatic units. The polymer is especially polyethylene naphthalate (PEN) which has a degree of crystallinity higher than 20%. The invention also relates to a process intended to limit the degradation of anethole-based beverages with the aid of such a polymer.

Abstract: The invention relates to a process for manufacturing a composition which can be used for producing stoppers.According to the invention, it comprises the following steps:a) sheets of cork are ground into small-sized granules,b) said cork granules are decomposed into granules having a high lignin content and into granules having a high suberin content, andc) the lignin-rich granules are separated from the suberin-rich granules in order to keep only the suberin-rich granules in said composition.The invention also relates to a composition comprising suberin-rich cork granules as well as to a stopper comprising such a composition.

Abstract: The invention relates to long-life polymer packaging containing a fruit-based and/or vegetable-based drink, which packaging consists of a monolayer and which monolayer is formed of a methyl acrylate/acrylonitrile/butadiene terpolymer. The invention also relates to a process intended to limit the degradation of fruit-based and/or vegetable-based drinks contained in a polymer packaging, which packaging is in the form of a monolayer and consists of a methyl acrylate/acrylonitrile/butadiene terpolymer.

Abstract: The invention relates to a monolayer or multilayer long-life packaging containing an anethole-based alcoholic or non-alcoholic drink, characterized in that the layer in contact with the said drink is formed of a methyl acrylate/acrylonitrile/butadiene terpolymer.The invention also relates to a process intended to limit the degradation of an anethole-based alcoholic or non-alcoholic drink, in particular one which is low in alcohol or alcohol-free, characterized in that the said drinks are stored in a monolayer or multilayer long-life packaging whose layer in contact with the said drinks consists of a methyl acrylate/acrylonitrile/butadiene terpolymer.

Abstract: The invention relates to a packaging made up of at least one inner, containing an alcoholic or nonalcoholic beverage based on anethole, in which the inner foil of said packaging is made up of a film of polyamide including aromatic units.The packaging is preferably intended to contain weakly alcoholic beverages and the polyamide results from the polycondensation of meta-xylylenediamine with adipic acid.

Abstract: The present invention relates to a process for washing a container, especially a food or drink container, of the bottle type, and intended to be re-employed, especially for a use with foodstuffs, in which:the reusable container is made of a homopolymer or a copolymer or a mixture of polymers, which is transparent and which has an average degree of crystallinity higher than 30%, the thickness of the walls of the container being greater than:0.35 mm with regard to the body1.00 mm at the base1.00 mm at the bottom, andsaid container is washed with an aqueous solution at a temperature higher than 70.degree. C.

Abstract: The present invention relates to a process for washing a container, especially a food or drink container, of the bottle type, and intended to be re-employed, especially for a use with foodstuffs, in which:the reusable container is made of a homopolymer or a copolymer or a mixture of polymers, which is transparent and which has an average degree of crystallinity higher than 30%, the thickness of the walls of the container being greater than:0.35 mm with regard to the body1.00 mm at the base1.00 mm at the bottom, andsaid container is washed with an aqueous solution at a temperature higher than 70.degree. C.

Abstract: The process relates to the welding of the cylindrical bodies of food cans in which the body is rolled with edges overlapping along a longitudinal welding line between resistance welding electrodes. The ratio of the radius of curvature of a first electrode with respect to the second is at least equal to 1.2. The material constituting the body is mild steel sheet having on one face at least, a protective conductive coating whose contact resistivity with respect to copper is at least 10.sup.-5 ohm/cm.sup.2. A material is selected having a ratio of the contact resistivity of a first face to that of the second at least equal to 1.2, and the material is rolled in such a way that the first face is in contact with the first electrode. The preferred materials have on each face a layer of tin of at the most 1.05 g/m.sup.2 and a composite layer of metallic chromium (5-140 mg/m.sup.2) and of chromium in oxidized form (1-30 mg/m.sup.