Cartonplast is a trademark that was first given by Covema spa (Italy) in the early seventies to a specific model of extrusion line manufactured and sold world wide by the aforesaid.[1][2][3]
In subsequent years such name was used as well to identify the product made by a Cartonplast extrusion line that is to say plastic corrugated sheet as well known as plastic hollow profile sheet or plastic twin wall sheet. The main raw material used to manufacture Cartonplast sheets are PP (polypropylene) and PET (Polyethylene terephthalate).[4]
The Cartonplast extrusion is carried out by using a unique front spinneret plate applied to a flat T-die equipped with restrictor bar (this technology was invented and patented by Marco Terragni during the seventies) to enable using thermoplastic polymers with different MFI (range 0.9 to 3).
^"Extruder and sizer apparatus for hollow plastic sections".
^"Official Gazette of the United States Patent and Trademark Office: Trademarks". U.S. Department of Commerce, Patent and Trademark Office. November 11, 1977 – via Google Books.
Cartonplast is a trademark that was first given by Covema spa (Italy) in the early seventies to a specific model of extrusion line manufactured and sold...
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or corriboard – also known under the trade names of Correx, Biplex, Cartonplast, Polyflute, Coroplast, FlutePlast, IntePro, Proplex, Twinplast, Corriflute...
by Marco Terragni created a first pilot plant for the production of Cartonplast (PP alveolar sheets). Many other developments in technology were made...
process under the name of Cartonplast. Starting from the same year, as witnessed by Kenya Gazette is the holder of the Cartonplast brand. This new process...
the RIAP engineering team patented the process for the production of Cartonplast. In the years 1972, 1973 Covema achieved great success by opening branches...
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