FIELD: technological processes.
SUBSTANCE: electret article comprising polymer material, which has electret charge given to it, besides, polymer material includes one or several types of heteroatoms, and coefficient of saturation with fluorine that represents ratio of atomic percentage ratio of fluorine relative to amount of saturated and unsaturated fluorine-containing groups, does not exceed approximately 200, moreover, atomic percentage content of fluorine makes at least approximately 40%. Article is used as filtering material in respirators, filters and face masks.
EFFECT: provision of high quality of material.
22 cl, 5 dwg, 8 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| ELECTRET ARTICLE HAVING HIGH FLUOROSATURATION RATIO | 2006 |
|
RU2362626C1 |
| REMOTE FLUORINATION OF FIBROUS FILTRATION WEBS | 2010 |
|
RU2493005C2 |
| ELECTRETIC FABRICS WITH ADDITIVES PROMOTING FABRIC CHARGING | 2010 |
|
RU2477344C1 |
| ELECTRET AND COMPUNDS SUITABLE FOR ELECTRETS | 2007 |
|
RU2404841C2 |
| PROCESSING AIDS FOR OLEFINIC CANVAS IN PARTICULAR ELECTRET CANVAS | 2010 |
|
RU2475575C1 |
| ELECTRET FABRICS WITH ADDITIVES PROMOTING ACCUMULATION OF CHARGE | 2013 |
|
RU2606611C1 |
| ELECTRETE WEBS WITH ADDITIVES, PROMOTING CHARGE ACCUMULATION | 2014 |
|
RU2635160C2 |
| METHOD FOR MANUFACTURE OF FIBROUS ELECTRET WEB WITH THE USE OF NON-AQUEOUS POLAR LIQUID | 2000 |
|
RU2247182C2 |
| METHOD AND A DEVICE FOR MANUFACTURE OF A FIBROUS ELECTRET LINEN WITH APPLICATION OF A WETTING LIQUID AND A WATER POLAR LIQUID | 2000 |
|
RU2266771C2 |
| ELECTRET FABRICS WITH ADDITIVES PROMOTING ACCUMULATION OF CHARGE | 2016 |
|
RU2673299C1 |
