Saint-Gobain Emballage

Frederic Mertz

Eric Martin

Boris Chauvet

Jean-Michel Munos

Method for depositing liquid onto the locking ring of a container

A method for opening a seal including a metal foil and a layer of thermoplastic resin via which the seal is heat-sealed to the rim of a glass jar or equivalent container, the rim having been coated beforehand with a heat-sealing primer, the heat-sealed seal providing hermetic closure of the glass jar or equivalent container, where the initial and final tear forces are not more than 28 N on peeling of the seal at 90&#xb0; at a speed of 300 mm/min; a glass jar or equivalent container suitable for implementation of this method, where the coating of heat-sealing primer contains an organic and/or inorganic material in which organic and/or inorganic fillers are incorporated; and the application of this method or this glass jar or equivalent container to the packaging of processed food products.

Method for easily opening a heat-sealed seal on the locking ring of a glass container

The invention relates to: 1) a process for the mass production of hollow glass articles which, when positioned beside one another with the same orientation in one and the same plane, are liable to come into mutual contact along a surface of revolution, characterized in that after they have left the annealing lehr, they are rotated through one turn at least along the axis of said surface of revolution, this surface then being coated, by a process without any solid contact, with an additional layer which reduces the coefficient of friction; 2) a hollow glass article as obtained by this process; and 3) a packaging assembly of such articles.

Method for reinforcing hollow glass articles

A process for the treatment of glass in order to improve the adhesion of a polymer to the glass, wherein the process involves depositing a metal oxide layer on a surface of the glass article, and

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Ouroux sur Saone, France

Frederic Mertz