FIELD: pipes.
SUBSTANCE: invention relates to production of extruded pipes of thermoplastic materials and can be used for making oxygen impermeable polypropylene tubes. Six-ply pipe for heating and hot water supply systems, reinforced with glass fibre, containing external and internal layers made of polypropylene copolymer, located between them layer containing random copolymer of ethylene and vinyl alcohol with adjacent to it adhesive layers, characterised by that pipe between outer layer and layer containing random copolymer of ethylene and vinyl alcohol with adjacent to it adhesive layers, pipe comprises reinforcing layer of mixture of polypropylene copolymer and glass fibre.
EFFECT: technical result is increase in strength and barrier properties with respect to oxygen.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MULTILAYER FLEXIBLE POLYMER PIPE, METHOD FOR ITS CONTINUOUS PRODUCTION AND DEVICE FOR IMPLEMENTATION OF METHOD | 2019 |
|
RU2717736C1 |
| MULTILAYER PIPE FOR WATER SUPPLY AND HEATING SYSTEMS | 2011 |
|
RU2471109C1 |
| MULTILAYER POLYPROPYLENE REINFORCED PIPE | 2022 |
|
RU2793376C1 |
| FLEXIBLE POLYMER MULTILAYER REINFORCED PIPE | 2021 |
|
RU2805351C1 |
| BIAXIALLY STRETCHED HOSE FILM PACKING AND FOR USE AS WRAPS FOR MEAT WITH BONES OR WITHOUT BONES OR PASTE-LIKE FOOD PRODUCTS AND APPLICATION OF SUCH FILM | 2002 |
|
RU2317895C2 |
| THERMAL INSULATED MULTI-LAYER POLYMER PIPE AND METHOD OF ITS MANUFACTURE | 2016 |
|
RU2630057C1 |
| MULTILAYER FILM | 2017 |
|
RU2752589C2 |
| METHOD OF PRODUCING MULTILAYER LAMINAR PLASTIC AND MULTILAYER LAMINAR PLASTIC | 2007 |
|
RU2420401C2 |
| LABELED CONTAINERS AND METHOD OF THEIR FABRICATION | 2011 |
|
RU2573895C2 |
| MULTILAYER FILM WITH HIGH IMPERMEABILITY FOR ARTICLE CONTAINING FUNCTIONAL MEDICAL SOLUTIONS | 2008 |
|
RU2450934C2 |
