FIELD: technological processes.
SUBSTANCE: plastic foam contains at least one strip of adhesive material, which is divided into several narrow strips that form first group of narrow strips with adhesive material and second group of alternating narrow gaps, where adhesive material is absent, on the surface of plastic foam. Method of plastic foam production includes plastic foam production by extrusion method. Then the surface of freshly extruded plastic foam is covered with a group of narrow adhesive material strips that are divided by alternating narrow gaps where adhesive material is absent. Then plastic foam is degassed.
EFFECT: surface of produced plastic foam is not deformed and remains flat and smooth during degassing.
15 cl, 10 dwg
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