METHOD OF PRODUCTION OF THE OPAL POLYMERIC FILM

• Main Authors: IVANENKO TAT'JANA ANATOL'EVNA, MAKSIMOVSKIJ ANATOLIJ NIKOLAEVICH, DJUKOVA NATAL'JA NIKOLAEVNA, TRISHKINA NINA VASIL'EVNA
• Format: Patent
• Language: English; Russian
• Published: 10.02.2007
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

FIELD: chemical industry; methods of reprocessing of the polymeric materials. ^ SUBSTANCE: the invention is pertaining to reprocessing of the polymeric materials, in particular, to production of the opal polymeric film by the method of extrusion of the melt through the plano-slit die. The method of production of the opal polymeric film includes the incoming inspection of the source polymeric material, setting of the temperature mode and the speed of the extrusion of the melt polymeric material, the process of extrusion through the plano-slit die, the extrudate cooling and its matting by stamping. The matting process begins before transition of the being cooled extrudate in its solid phase. The invention ensures production of the polymeric film with the improved uniformity of the matting. ^ EFFECT: the invention ensures production of the polymeric film with the improved uniformity of the matting. ^ 2 cl, 3 dwg, 1 tbl, 10 ex