BE488649A

BE488649A -

Info

Publication number: BE488649A
Authority: BE

Description

       

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  Nouvelle matière isolante et procédé pour sa fabrication. 



   La présente invention est relative à des perfectionne- ments apportés à l'invention décrite dans mon brevet principal du 1er Avril 1949. 



   Suivant ce brevet principal, on comprime fortement dans des moules de la chènevotte que l'on fait chauffer, de préférence dans les moules. 



   Il a été maintenant trouvé qu'en traitant de la même façon que la chènevotte, soit des copeaux de pellicules en cellulose régénérée ("Cellophane"), soit un mélange de chènevotte et de copeaux de pellicules en cellulose régénérée, c'est-à-dire en les comprimant fortement dans des moules de forme quelconque, et en les chauffant, de préférence dans les moules et à une température entre environ 200  et   env&ron   300 C, on obtint une masse homogène, dont le pouvoir isolant égale celui du liège. 



   Les pièces moulées en copeaux de pellicules de cellulose régénérée ou en mélange de copeaux de pellicules de cellulose régénérée et chènevotte, peuvent être enduites d'un vernis isolant, pour contrevenir à l'absorption de l'humidité. 



   On peut également comprimer dans les moules une couche de chènevotte étendue entre deux couches de pellicule "Cellophane". 

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  New insulating material and process for its manufacture.



   The present invention relates to improvements made to the invention described in my main patent of April 1, 1949.



   According to this main patent, is strongly compressed in molds of the hemp seed that is heated, preferably in the molds.



   It has now been found that by treating in the same way as hemp, either regenerated cellulose film chips ("Cellophane") or a mixture of hemp seed and regenerated cellulose film chips, that is to say - ie by compressing them strongly in molds of any shape, and by heating them, preferably in the molds and at a temperature between about 200 and about 300 C, a homogeneous mass is obtained, the insulating power of which is equal to that of cork.



   Parts molded from regenerated cellulose film chips or from a mixture of regenerated cellulose and hemp film chips can be coated with an insulating varnish, to prevent moisture absorption.



   It is also possible to compress in the molds a layer of hemp spread between two layers of "Cellophane" film.

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Claims

CLAIMS AND SUMMARY.

1. A method of making an insulating material, characterized in that it is compressed in molds and then heated regenerated cellulose film chips or a mixture of hemp seed and regenerated cellulose film chips.

2. Method as claimed in 1, characterized in that the heating takes place in the molds.

3. Method as claimed in claims 1 or 2, characterized in that the molded parts are coated with an insulating varnish.

4. A method as claimed in any one of the preceding claims, characterized in that the heating takes place between about 2000 and about 300 c.

5. Method as claimed in 1, characterized in that a layer of hemp spread between two layers of regenerated cellulose film (called "Cellophane") is compressed in the molds.

6. A method of making an insulating material, substantially as described.

7 New insulating material obtained according to any one of the preceding claims.