MULTILAYER SEALING COVERING MATERIAL WITH LOW VAPOR PERMEABILITY Russian patent published in 2003 - IPC

FIELD: artificial leather industry. SUBSTANCE: applicable in manufacture of technical-purpose materials used for a long period of time in the open air, of a high humidity inclusive. The material has a textile warp of synthetic fibers with an elastomer coating on the basis of ethylenepropylenedien copolymer СКЭПТ-50. The material has a sealing layer. It is made of polymeric mixture on the basis of butyl rubber. At a relation of components, part by mass: butyl rubber 1675-100, captax - 1, thiuram Д - 1.5, stearic acid -3, zinc white - 5, silica powder A-175 or silica white БС-20, antimony trioxide - 15, chlorinated paraffin ХП-70-15, industrial oil - 5, talc or vermiculite, or phlogopite - 20-25, pigments - 1-3. EFFECT: reduced vapor permeability and enhanced service life. 3 tbl