FIELD: chemistry.
SUBSTANCE: invention relates to a cellulose barrier composition for use in barrier materials, particularly food packaging. The composition contains: a) cellulose fibres having a number-average length of 0.001 to 0.5 mm and a specific surface area of 1 to 100 m2/g; b) a partially hydrolysed vinyl acetate polymer, the composition containing 55 to 65 wt % of (a) and 35 to 45 wt % of (b) based on the dry weight of (a) and (b) in the composition. The composition is used to produce self-supporting films or coating layers for providing barriers for permeable substrates.
EFFECT: invention enables to produce barrier materials from renewable sources with improved physical and mechanical properties.
23 cl, 5 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CELLULOSE BARRIER COMPOSITION INCLUDING ANIONIC POLYMER | 2011 |
|
RU2570449C2 |
| METHOD TO PRODUCE PAPER PRODUCT | 2007 |
|
RU2428535C2 |
| MATERIAL TO BE USED AS CONCRETE ADDITIVE | 2010 |
|
RU2548624C2 |
| FIBRES WITH FILLER | 2015 |
|
RU2676430C2 |
| METHOD OF PAPER OR PAPERBOARD PRODUCTION | 2014 |
|
RU2667450C2 |
| STRONG PAPER | 2010 |
|
RU2567855C2 |
| CARDBOARD WITH IMPROVED ULTIMATE COMPRESSION STRENGTH | 2017 |
|
RU2738381C2 |
| WATER-SOLUBLE NONWOVEN FABRICS FOR PACKING AGGRESSIVE CHEMICALS | 2020 |
|
RU2824131C1 |
| METHOD FOR PRODUCTION OF PAPER AND CARDBOARD | 2012 |
|
RU2601465C2 |
| LAMINATED PACKAGING MATERIAL AND PACKAGING CONTAINERS MADE FROM IT | 2016 |
|
RU2732270C2 |
