Ucb Societe Anonyme

Andre Depuydt

Robert Heiremans

Rudiger De Keyser

A cylindrical container body for packaging pressurized carbonated beverages, comprising (a) at least one film of a synthetic or semi-synthetic organic polymer having a permeability to oxygen lower than 6.times.10.sup.-13 ml.cm/cm.sup.2.sec.cm of mercury at 25.degree. C. and 0% relative air humidity; (b) at least two films of a polyester; and (c) at least two layers of an organic thermoplastic binder having a permeability to water vapor lower than 1.times.10.sup.-14 g.cm/cm.sup.2.sec.cm of mercury at 38.degree. C. and 90% relative air humidity, all the films of (a) and (b) being adhesively bonded together by means of the binder of (c) in the form of a cylindrical body, the wall of which has a spirally or convolutely wound structure, in which each film of (a) is separated both from the outside surface and from the inside surface of the cylindrical body by at least one film of (b) and at least one layer of (c), and containers comprising said cylindrical body and provided with top and bottom end closures at the opposite ends thereof.

Plastics container for pressurized carbonated beverages

An apparatus for manufacturing a laminate having a width of at least 30 cm. by means of a solventless adhesive, wherein, in a first stage, means are provided for continuously supplying a solventless adhesive to a distributor means comprising a pre-dosing element and an elastic-surfaced rotating element in such a manner as to coat the surface of the elastic-surfaced rotating element with a layer of solventless adhesive having a thickness of from 5 to 50 microns, the layer then being substantially transferred to a moving film to be laminated, the circumferential speed of the elastic-surfaced rotating element and the speed of linear displacement of the film being in a ratio of from 1:10 to 1:50, so that the film receives a layer of solventless adhesive of a thickness of from 0.5 to 5 microns, and, in a second stage, means are provided for bonding in a known manner the film coated in this manner to another film to form a laminate.

Growing community of inventors

Teper, Belgium

Andre Depuydt