FIELD: process engineering.
SUBSTANCE: invention relates to processing of plastics at production of films, sheets and composites for making of membranes with micro- and ultrafiltration ability. It can be used as undercover materials, for strengthening and reinforcing at road construction and packing of nonstandard cargoes. Proposed membrane consists of the first and second layers. It has first, reinforcing layer composed by continuous carcass gauzes that form the cell of crystalline polymer material that differ in sizes. Second layer polymer material is located therein and features microporous structure with different air and water permeability. Said membranes are produced by co-extrusion or somewhat other known processes.
EFFECT: perfected operating performances.
3 cl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| SHRINK FILM "FORSPLAST-THERMO" | 2014 |
|
RU2605591C2 |
| METHOD OF PRODUCING THERMOSHRINKING INSULATING MATERIAL | 0 |
|
SU1581589A1 |
| MATERIAL FOR PROTECTIVE COATINGS OF BUILDING STRUCTURES AND METHOD OF PREPARATION THEREOF | 1996 |
|
RU2129133C1 |
| BREATHING FILM LAMINATE WITH FILLER | 1998 |
|
RU2192512C2 |
| MICROPOROUS AIR-PERMEABLE STRUCTURAL MATERIALS CONTAINING COATED WOVEN AND/OR NONWOVEN MATERIALS, AND METHOD OF PRODUCING SAID MATERIALS | 2007 |
|
RU2418820C2 |
| PERMEABLE FILMS AND FILM-NONWOVEN COMPOSITE MATERIAL AND METHODS OF PREPARATION THEREOF | 1994 |
|
RU2140855C1 |
| THERMOPLASTIC COMPOSITE MATERIAL | 2004 |
|
RU2276677C2 |
| SEGMENTED FILM WITH HIGH-STRENGTH SUTURES | 2011 |
|
RU2586093C2 |
| IMPROVED STRUCTURES MADE OUT OF POLYMERS PRODUCED WITH USE OF CATALYTIC AGENTS WITH ONE ACTIVE CORE | 1999 |
|
RU2248885C2 |
| BIODEGRADABLE GRANULAR POLYOLEFIN BLEND AND METHOD OF PRODUCTION | 2008 |
|
RU2352597C1 |
