FIELD: chemistry.
SUBSTANCE: invention relates to composition of polymer material used in food and petrochemical industry as an insulating membrane. Insulating membrane includes a multilayer polymer composition for use in a package for sealing the container neck, in which a layer of modified foamed polyethylene is used. Total thickness of the insulating membrane is from 0.6 mm to 1.5 mm, thickness error is permissible ±10%. Thickness of foamed polyethylene layers coated on both sides with a polypropylene film cannot exceed 1.27 mm, thickness error is permissible ±2%, wherein density of layer of foamed polyethylene from 200 kg/m3 to 600 kg/m3 depending on thickness of layer.
EFFECT: creation of an insulating membrane from modified foamed polyethylene used in packaging for food and petrochemical products.
1 cl, 1 dwg, 2 tbl
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|
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| INSULATION MATERIAL | 2019 |
|
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| INSULATION MATERIAL | 2020 |
|
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