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MARC A CHAVANNES
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MARC A CHAVANNES
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Priority to ES1967133593UpriorityCriticalpatent/ES133593Y/es
Publication of ES133593UpublicationCriticalpatent/ES133593U/es
Application grantedgrantedCritical
Publication of ES133593YpublicationCriticalpatent/ES133593Y/es
Laminado plástico celular, caracterizado porque comprende un primer laminado que tiene una capa de material de base y una capa de material impermeable al gas superpuesta a un lado del mismo, teniendo dicho laminado una pluralidad de relieves que salen del citado lado y un segundo laminado que tiene capas exteriores de material de base y una capa central de material impermeable al gas, hallándose dicho segundo laminado soldado al otro lado del primer laminado para formar una pluralidad de células estancas.
Werkwijze voor het vervaardigen van een thermisch lasbaar gelaagd materiaal, dat ten minste twee lagen van thermoplastisch materiaal bevat, en aldus vervaardigd gelaagd materiaal.