COMPOSITE FOR SURFACE TREATMENT OF VULCANIZED RUBBER Russian patent published in 2003 - IPC

FIELD: rubber industry and technology. SUBSTANCE: invention relates to composites used for surface treatment of vulcanized rubber in gluing and sealing rubber with polyurethane sealing agent. Composite comprises the following components, mas. p. p.: N-halogen- sulfamide of the structure formula (I) where R is hydrogen atom, CH₃, chlorine atom, 8-16; ethyl acetate, 30-90; benzine, 10-50; epoxy diane non-hardened resin ED-20, 4-16. Firstly, ethyl acetate is mixed with benzine, then N-halogensulfamide is added and dissolved its. Then ED-20 is added, stirred up to dissolution, kept for 30 min and applied on prepared rubber. Gluing treated rubber is carried out with polyurethane cold hardening sealing agent. Invention provides enhancement of adhesion strength in gluing vulcanized rubber with polyurethane sealing agent based on SKU-DF-2. Invention can be used in ship building, rubber industry and other branches. EFFECT: improved and valuable properties of composite. 2 tbl