METHOD FOR REMOVING SOLVENT FROM POLYMER SOLUTION Russian patent published in 2016 - IPC C08F6/10 C08C2/00 C08C2/06 

Abstract RU 2575347 C1

FIELD: chemistry.

SUBSTANCE: method for removing solvent from polymer solution, which contains, at least, one elastomer polymer, includes carrying out stage of distillation for said polymer solution by means of water steam in presence of dispersing system, which contains: at least, one lamellar substance, content of which constitutes from 0.005 wt % to 1 wt % relative to the total weight of dry elastomer polymer, with thickness of lamellae of said lamellar substance being in the range from 0.01 nm to 30 nm, and lamellar substance is selected from phyllosilicates, such as given in the invention formula, and, at least, one cationic surface-active substance, content of which constitutes from 0.0005 wt % to 1 wt % relative to the total weight of dry elastomer polymer.

EFFECT: application of reduced quantity of additives to obtain polymer of sufficient quality.

11 cl, 1 dwg, 2 ex

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RU 2 575 347 C1

Authors

Parizi Marija

Maehstri P'Ero

Dates

2016-02-20Published

2012-11-23Filed