Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Tetra Pak AB
Original Assignee
Tetra Pak AB
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Filing date
Publication date
Application filed by Tetra Pak ABfiledCriticalTetra Pak AB
Priority to ES350472ApriorityCriticalpatent/ES350472A1/en
Publication of ES350472A1publicationCriticalpatent/ES350472A1/en
A method for producing containers of the type containing at least one layer of plastic foam and at least one uninterrupted thin layer of homogeneous plastic material, characterized in that the foamed plastic body of the container is produced in a conventional manner by means of expandable plastic material which has been previously treated for this purpose, which plastic material in the expansion obtains a frothy structure; because the expansion process is carried out after the plastic material has been introduced into a forming cavity corresponding to the shape and size of the desired foamed plastic body; because said shaping cavity consists of a space between an outer mold corresponding to the outer contour of the foamed plastic body, and an inner mold component, the core, which corresponds to the inner contour of the foamed plastic body; and because at least one of said inner mold component or outer shaping cavity is covered by a thin liner of homogeneous plastic material, which liner will form the wall surface in said shaping cavity. (Machine-translation by Google Translate, not legally binding)
ES350472A1968-02-141968-02-14A method of producing packages. (Machine-translation by Google Translate, not legally binding)
ExpiredES350472A1
(en)
Procedure and its corresponding mold for the manufacture of cushions, mattresses, pillows and similar in rubber-foam of latex. (Machine-translation by Google Translate, not legally binding)