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Individual
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Individual
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Priority to ES0279505ApriorityCriticalpatent/ES279505A1/en
Publication of ES279505A1publicationCriticalpatent/ES279505A1/en
Blow-Moulding Or Thermoforming Of Plastics Or The Like
(AREA)
Abstract
A process for manufacturing by molding masks and masks, essentially characterized in that, plates of synthetic resins of undetermined nature, are placed between the frame and the own box of a machine, projecting on this resin the heat produced by a battery of infrared rays for determine its thermoplasticity, and, once conveniently softened, an existing inner platform is lifted in said box, in which the corresponding molds of suitable material have previously been placed, until contacting the plate of the thermoplastic material, at which time the vacuum of the box by means of a valve or rigid tube that communicates thereto with a cylinder, in which the vacuum has previously been produced; when the air is dislodged from the box, the plate of the thermofuging material yields and adapts perfectly to the reliefs of the corresponding mold, with which the masks are formed, cooling them immediately. (Machine-translation by Google Translate, not legally binding)
ES0279505A1962-07-241962-07-24A procedure for manufacturing by molding masks and masks (Machine-translation by Google Translate, not legally binding)
ExpiredES279505A1
(en)
Procedure and device for the collection of hardened plastic materials especially synthetic resins in the vacuum (Machine-translation by Google Translate, not legally binding)
Method for the production of mold pieces made from molding materials, such as concrete, plaster or synthetic plastic materials. (Machine-translation by Google Translate, not legally binding)
A process for the manufacture of molded objects with synthetic resins reinforced with fibers of any kind (Machine-translation by Google Translate, not legally binding)
Procedure for manufacture of plasticized or cauchutados products, on textile or similar supports (Machine-translation by Google Translate, not legally binding)