METHOD FOR THE PRODUCTION OF CONTAINERS IN THERMOPLASTIC MATERIAL, IN PARTICULAR SHEETS OF POLYETHYLENTEREPHTHALATE AND CONTAINERS THUS OBTAINED
Method to produce heat resistant polyethylenterphthalate containers by means of thermoforming with two-way stretching of a sheet (1) of unstretched amorphous polymer in a die (2) kept at temperature near 180 DEG C. The container is consolidated and extracted by means of a counterdie (4), cooled and...
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Main Author | |
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Format | Patent |
Language | English |
Published |
04.04.1990
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Edition | 4 |
Subjects | |
Online Access | Get full text |
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Summary: | Method to produce heat resistant polyethylenterphthalate containers by means of thermoforming with two-way stretching of a sheet (1) of unstretched amorphous polymer in a die (2) kept at temperature near 180 DEG C. The container is consolidated and extracted by means of a counterdie (4), cooled and provided with suction means. The containers thus obtained are stable at sterilization temperature in boiling water and in steam at 130 DEG C. |
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Bibliography: | Application Number: EP19870110361 |