METHOD FOR JOINING MOLDED RUBBER STRIPS BASED ON ETHYLENE-PROPYLENE RUBBER WITH PARTS OF RIGID POLYMER MATERIAL Russian patent published in 1995 - IPC

FIELD: production of multilayer structures. SUBSTANCE: applied to cleaned surface of laminated plastic-paper based laminate is leikonat adhesive. Then, dried off at room temperature for 30-40 min and a layer of rubber mix on ethylene-propylene rubber is applied. Bonding is effected in press at temperature of 90-99 C and pressure of 7-25 MPa for 3-10 min until thin rubber layer 0.05-0.5 min thick is formed. Rubber-coated paper-based laminate is cut into strips and parts in form of washers are stamped and placed in mold heated up to 160-185 C. Molded rubber strips are joined with parts-washers with their rubber coated side and vulcanized for 7-30 min. Method labor input is 6.55 n/h for 1000 pieces. EFFECT: higher efficiency. 1 tbl