| abstract |
FIELD: construction. n SUBSTANCE: method includes the presence of base material, the resin layer containing a foaming agent, and the surface protective layer that are sequentially formed on the base material. The surface protective layer is formed from a monolayer or multilayer structure, and at least one layer forming the protective layer surface comprises polyethylene and/or an ethylene copolymer. The method comprises the following stages: forming a resin layer containing a foaming agent on the base material; formation of a surface protective layer on the resin layer containing a foaming agent by means of extrusion film formation; and applying the electron beam from the surface side of the protective layer to crosslink polyethylene and/or the ethylene copolymer. n EFFECT: obtaining a foamed multilayer sheet having improved resistance to contamination. n 9 cl, 3 tbl, 8 ex |