MULTILAYER HEAT-REFLECTIVE MATERIAL WITH INCREASED PHYSICAL-MECHANICAL PROPERTIES Russian patent published in 2000 - IPC

FIELD: production of multilayer materials for manufacture of garments and protective clothing. SUBSTANCE: multilayer material has underlayer manufactured from difficultly combustible fabric and connected with intermediate adhesive layer. Heat-reflective metallized layer is attached to upper surface of intermediate layer. Siliciferous fabric used as difficultly combustible layer and having oxygen index exceeding 70% is doubled at specific pressure of 0.5 kg/sq cm with metallized polyethylene terephthalate film through intermediate layer containing 22%-solution of fluoroplastic, polyurethane polymer, polyisocyanate in ethyl acetate, with mentioned components being used in the ratio of 90:10:1 % by weight. Semifinished material is dried at temperature of 50 C for 3 min and treated by thermal contact method at contact temperature of 145 C, specific pressure of 0.5 kg/sq cm, contact time of 1.5 min, and held for 24 hours. EFFECT: improved working characteristics and prolonged service life. 1 tbl