MUMBAI, India, Oct. 11 -- Intellectual Property India has published a patent application (202534026319 A) filed by Colines S. P. A., Novara, Italy, on March 22, for 'a thermostated plant for producing a plastic material film to be then subjected to a stretching process and related method.'
Inventor(s) include Lombardini, Nicola; and Zacche, Vanni.
The application for the patent was published on Oct. 10, under issue no. 41/2025.
According to the abstract released by the Intellectual Property India: "A calendering and stretching plant (1) for producing a stretched mono-material polymer film, comprising a flat extrusion head (10) placed upstream of a calender (20), and a stretching unit (30) placed downstream of the calender (20), wherein the calender (20) comprises at least a pair of calendering rollers, i.e., a first calendering roller (21), or casting roller, and a second calendering roller (22), or pressing roller, characterized in that the flat extrusion head (10) is placed at an operating distance X from said calender (20) of between 100 mm and 1000 mm with reference thicknesses of between 500 micron and 50 micron, wherein the greater the thickness, the smaller the distance X and vice-versa, and wherein the casting roller (21) and the pressing roller (22) are provided with a controlled cooling/heating system."
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