FIELD: chemistry.
SUBSTANCE: method involves feeding said liquid medium into a reactor containing a mixed single-phase liquid mixture in which the main weight fraction is a nonsolvent and the smaller weight fraction is a solvent. The mixture has such a composition and temperature that the polymer gradually precipitates from it. The polymer is then extracted in form of particles in a suspension in a liquid which is rich in the nonsolvent. The polymer particles are separated from the liquid. The polymer is selected from polymers derived from vinyl chloride, vinylidene fluoride, vinylidene chloride, homo- or copolymers of styrene, ABS-resin, polycarbonates, homopolymers of ethylene or propylene, copolymers of ethylene and vinyl- or butyl acetate and mixtures thereof.
EFFECT: technique for extracting polymers from a liquid medium containing that polymer and a solvent.
12 cl, 3 dwg, 2 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF EXTRACTING POLYMER FROM SOLUTION | 2008 |
|
RU2470036C2 |
| ACRYLONITRILE/BUTADIENE/STYRENE RESIN AND METHOD FOR PRODUCTION THEREOF | 1997 |
|
RU2164232C2 |
| METHOD OF DEGASSING AROMATIC POLYMER WITH ALKYLENE GROUP | 2008 |
|
RU2464283C2 |
| METHOD FOR SYNTHESIS OF BIORESOURCE ACRYLIC ESTERS | 2009 |
|
RU2514422C2 |
| METHOD OF PRODUCING GRAFT COPOLYMERS | 0 |
|
SU703025A3 |
| METHOD OF PREPARING RUBBER-REINFORCED VINYL AROMATIC COPOLYMERS, AND VINYL AROMATIC COPOLYMERS | 1996 |
|
RU2161164C2 |
| AQUEOUS DISPERSION FOR SILICONE ELASTOMER WITH CONTROLLED TRANSPARENCY AND METHOD OF PREPARATION THEREOF | 1996 |
|
RU2162866C2 |
| RADIATIONALLY HARDENABLE LATEX POLYMER, PROCESS FOR PREPARING THEREOF, AND COATING COMPOSITION | 1993 |
|
RU2126428C1 |
| LINEAR BLOCK COPOLYMERS | 1992 |
|
RU2126422C1 |
| NOVEL POLYMERS AND THEIR APPLICATION IN OBTAINING HIGH-IMPACT POLYMER COMPOSITIONS | 2009 |
|
RU2533206C2 |
