POLYTETRAFLUOROETHYLENE LAMINATED MATERIAL AND METHOD OF ITS PRODUCTION

摘要

FIELD: flexible fluoroplastic materials and methods of their production. SUBSTANCE: flexible fluoroplastic laminated material contains many nonbaked oriented polytetrafluoroethylene films laminated under conditions of high temperature and pressure. At least, one of these films has orientation directed at angle to direction of orientation, of at least, one other film. Films preserve their orientation after lamination. EFFECT: higher strength and chemical stability. 16 cl, 5 dwg, 4 tbl