FIELD: chemistry.
SUBSTANCE: method of obtaining poly-condensed polymer includes the introduction of pre-polymers of poly-condensed polymer in a molten state into a polymerising reactor through the intake hole; release the introduced pre-polymer through holes in the perforated plate; and then poly-condensation of the pre-polymer under lowered pressure with simultaneous lowering of the pre-polymer along the support, the perforated plated has two or more zones, poly-condensation is carried out by putting pre-polymer and/or modifier of the polymer in each of the zones and releasing the introduced pre-polymer and/or modifier of the polymer through the holes in each of the zones. Also proposed is a method of obtaining the molded article by transferring obtained by the proposed method polymer in a molten state to the molder with subsequent molding.
EFFECT: reduction in expenditure for obtaining different high-quality poly-condensed polymers with a high degree of polymerisation.
12 cl, 10 dwg, 5 tbl, 5 ex
Authors
Dates
2008-12-10—Published
2005-11-25—Filed